# -*- coding: utf-8 -*-

from __future__ import print_function
import os
import sys
import tempfile
from itertools import groupby

import numpy as np
from numpy import rec as records
from numpy import testing as npt

import tables
from tables import (
    Col, StringCol, BoolCol, IntCol, FloatCol, ComplexCol, Cols, Column,
    Int8Col, Int16Col, Int32Col, UInt16Col, Float32Col, Float64Col,
)
from tables.utils import SizeType, byteorders
from tables.tests import common
from tables.tests.common import allequal, areArraysEqual
from tables.tests.common import unittest
from tables.tests.common import PyTablesTestCase as TestCase
from tables.description import descr_from_dtype


# Test Record class
class Record(tables.IsDescription):
    var1 = StringCol(itemsize=4, dflt=b"abcd", pos=0)  # 4-character String
    var2 = IntCol(dflt=1, pos=1)                   # integer
    var3 = Int16Col(dflt=2, pos=2)                 # short integer
    var4 = Float64Col(dflt=3.1, pos=3)             # double (double-precision)
    var5 = Float32Col(dflt=4.2, pos=4)             # float  (single-precision)
    var6 = UInt16Col(dflt=5, pos=5)                # unsigned short integer
    var7 = StringCol(itemsize=1, dflt=b"e", pos=6)  # 1-character String
    var8 = BoolCol(dflt=True, pos=7)               # boolean
    var9 = ComplexCol(
        itemsize=8, dflt=(0.+1.j), pos=8)       # Complex single precision
    var10 = ComplexCol(
        itemsize=16, dflt=(1.-0.j), pos=9)      # Complex double precision
    if hasattr(tables, 'Float16Col'):
        var11 = tables.Float16Col(dflt=6.4)     # float  (half-precision)
    if hasattr(tables, 'Float96Col'):
        var12 = tables.Float96Col(dflt=6.4)     # float  (extended precision)
    if hasattr(tables, 'Float128Col'):
        var13 = tables.Float128Col(dflt=6.4)    # float  (extended precision)
    if hasattr(tables, 'Complex192Col'):
        var14 = tables.ComplexCol(
            itemsize=24, dflt=(1.-0.j))  # Complex double (extended precision)
    if hasattr(tables, 'Complex256Col'):
        var15 = tables.ComplexCol(
            itemsize=32, dflt=(1.-0.j))  # Complex double (extended precision)

#  Dictionary definition
RecordDescriptionDict = {
    'var1': StringCol(itemsize=4, dflt=b"abcd", pos=0),  # 4-character String
    'var2': IntCol(dflt=1, pos=1),              # integer
    'var3': Int16Col(dflt=2, pos=2),            # short integer
    'var4': Float64Col(dflt=3.1, pos=3),        # double (double-precision)
    'var5': Float32Col(dflt=4.2, pos=4),        # float  (single-precision)
    'var6': UInt16Col(dflt=5, pos=5),           # unsigned short integer
    'var7': StringCol(
        itemsize=1, dflt=b"e", pos=6),          # 1-character String
    'var8': BoolCol(dflt=True, pos=7),          # boolean
    'var9': ComplexCol(
        itemsize=8, dflt=(0.+1.j), pos=8),      # Complex single precision
    'var10': ComplexCol(
        itemsize=16, dflt=(1.-0.j), pos=9),     # Complex double precision
}

if hasattr(tables, 'Float16Col'):
    # float  (half-precision)
    RecordDescriptionDict['var11'] = tables.Float16Col(dflt=6.4)
if hasattr(tables, 'Float96Col'):
    # float  (extended precision)
    RecordDescriptionDict['var12'] = tables.Float96Col(dflt=6.4)
if hasattr(tables, 'Float128Col'):
    # float  (extended precision)
    RecordDescriptionDict['var13'] = tables.Float128Col(dflt=6.4)
if hasattr(tables, 'Complex192Col'):
    # Complex double (extended precision)
    RecordDescriptionDict['var14'] = tables.ComplexCol(
        itemsize=24, dflt=(1.-0.j))
if hasattr(tables, 'Complex256Col'):
    # Complex double (extended precision)
    RecordDescriptionDict['var15'] = tables.ComplexCol(
        itemsize=32, dflt=(1.-0.j))


# Old fashion of defining tables (for testing backward compatibility)
class OldRecord(tables.IsDescription):
    var1 = StringCol(itemsize=4, dflt=b"abcd", pos=0)
    var2 = Col.from_type("int32", (), 1, pos=1)
    var3 = Col.from_type("int16", (), 2, pos=2)
    var4 = Col.from_type("float64", (), 3.1, pos=3)
    var5 = Col.from_type("float32", (), 4.2, pos=4)
    var6 = Col.from_type("uint16", (), 5, pos=5)
    var7 = StringCol(itemsize=1, dflt=b"e", pos=6)
    var8 = Col.from_type("bool", shape=(), dflt=1, pos=7)
    var9 = ComplexCol(itemsize=8, shape=(), dflt=(0.+1.j), pos=8)
    var10 = ComplexCol(itemsize=16, shape=(), dflt=(1.-0.j), pos = 9)
    if hasattr(tables, 'Float16Col'):
        var11 = Col.from_type("float16", (), 6.4)
    if hasattr(tables, 'Float96Col'):
        var12 = Col.from_type("float96", (), 6.4)
    if hasattr(tables, 'Float128Col'):
        var13 = Col.from_type("float128", (), 6.4)
    if hasattr(tables, 'Complex192Col'):
        var14 = ComplexCol(itemsize=24, shape=(), dflt=(1.-0.j))
    if hasattr(tables, 'Complex256Col'):
        var15 = ComplexCol(itemsize=32, shape=(), dflt=(1.-0.j))


class BasicTestCase(common.TempFileMixin, TestCase):
    # file  = "test.h5"
    open_mode = "w"
    title = "This is the table title"
    expectedrows = 100
    appendrows = 20
    compress = 0
    shuffle = 0
    fletcher32 = 0
    complib = "zlib"  # Default compression library
    record = Record
    recarrayinit = 0
    maxshort = 1 << 15

    def setUp(self):
        super(BasicTestCase, self).setUp()

        # Create an instance of an HDF5 Table
        self.rootgroup = self.h5file.root
        self.populateFile()
        self.h5file.close()

    def initRecArray(self):
        record = self.recordtemplate
        row = record[0]
        buflist = []
        # Fill the recarray
        for i in range(self.expectedrows):
            tmplist = []
            var1 = '%04d' % (self.expectedrows - i)
            tmplist.append(var1)
            var2 = i
            tmplist.append(var2)
            var3 = i % self.maxshort
            tmplist.append(var3)
            if isinstance(row['var4'], np.ndarray):
                tmplist.append([float(i), float(i * i)])
            else:
                tmplist.append(float(i))
            if isinstance(row['var5'], np.ndarray):
                tmplist.append(np.array((float(i),)*4))
            else:
                tmplist.append(float(i))
            # var6 will be like var3 but byteswaped
            tmplist.append(((var3 >> 8) & 0xff) + ((var3 << 8) & 0xff00))
            var7 = var1[-1]
            tmplist.append(var7)
            if isinstance(row['var8'], np.ndarray):
                tmplist.append([0, 10])  # should be equivalent to [0,1]
            else:
                tmplist.append(10)  # should be equivalent to 1
            if isinstance(row['var9'], np.ndarray):
                tmplist.append([0.+float(i)*1j, float(i)+0.j])
            else:
                tmplist.append(float(i)+0j)
            if isinstance(row['var10'], np.ndarray):
                tmplist.append([float(i)+0j, 1 + float(i)*1j])
            else:
                tmplist.append(1 + float(i)*1j)
            if hasattr(tables, 'Float16Col'):
                if isinstance(row['var11'], np.ndarray):
                    tmplist.append(np.array((float(i),)*4))
                else:
                    tmplist.append(float(i))
            if hasattr(tables, 'Float96Col'):
                if isinstance(row['var12'], np.ndarray):
                    tmplist.append(np.array((float(i),)*4))
                else:
                    tmplist.append(float(i))
            if hasattr(tables, 'Float128Col'):
                if isinstance(row['var13'], np.ndarray):
                    tmplist.append(np.array((float(i),)*4))
                else:
                    tmplist.append(float(i))
            if hasattr(tables, 'Complex192Col'):
                if isinstance(row['var14'], np.ndarray):
                    tmplist.append([float(i)+0j, 1 + float(i)*1j])
                else:
                    tmplist.append(1 + float(i)*1j)
            if hasattr(tables, 'Complex256Col'):
                if isinstance(row['var15'], np.ndarray):
                    tmplist.append([float(i)+0j, 1 + float(i)*1j])
                else:
                    tmplist.append(1 + float(i)*1j)

            buflist.append(tmplist)

        self.record = records.array(buflist, dtype=record.dtype,
                                    shape=self.expectedrows)

    def populateFile(self):
        group = self.rootgroup
        if self.recarrayinit:
            # Initialize an starting buffer, if any
            self.initRecArray()
        for j in range(3):
            # Create a table
            filterprops = tables.Filters(complevel=self.compress,
                                         shuffle=self.shuffle,
                                         fletcher32=self.fletcher32,
                                         complib=self.complib)
            if j < 2:
                byteorder = sys.byteorder
            else:
                # table2 will be byteswapped
                byteorder = {"little": "big", "big": "little"}[sys.byteorder]
            table = self.h5file.create_table(group, 'table'+str(j),
                                             self.record,
                                             title=self.title,
                                             filters=filterprops,
                                             expectedrows=self.expectedrows,
                                             byteorder=byteorder)
            if not self.recarrayinit:
                # Get the row object associated with the new table
                row = table.row
                # Fill the table
                for i in range(self.expectedrows):
                    s = '%04d' % (self.expectedrows - i)
                    row['var1'] = s.encode('ascii')
                    row['var7'] = s[-1].encode('ascii')
                    # row['var7'] = ('%04d' % (self.expectedrows - i))[-1]
                    row['var2'] = i
                    row['var3'] = i % self.maxshort
                    if isinstance(row['var4'], np.ndarray):
                        row['var4'] = [float(i), float(i * i)]
                    else:
                        row['var4'] = float(i)
                    if isinstance(row['var8'], np.ndarray):
                        row['var8'] = [0, 1]
                    else:
                        row['var8'] = 1
                    if isinstance(row['var9'], np.ndarray):
                        row['var9'] = [0.+float(i)*1j, float(i)+0.j]
                    else:
                        row['var9'] = float(i)+0.j
                    if isinstance(row['var10'], np.ndarray):
                        row['var10'] = [float(i)+0.j, 1.+float(i)*1j]
                    else:
                        row['var10'] = 1.+float(i)*1j
                    if isinstance(row['var5'], np.ndarray):
                        row['var5'] = np.array((float(i),)*4)
                    else:
                        row['var5'] = float(i)
                    if hasattr(tables, 'Float16Col'):
                        if isinstance(row['var11'], np.ndarray):
                            row['var11'] = np.array((float(i),)*4)
                        else:
                            row['var11'] = float(i)
                    if hasattr(tables, 'Float96Col'):
                        if isinstance(row['var12'], np.ndarray):
                            row['var12'] = np.array((float(i),)*4)
                        else:
                            row['var12'] = float(i)
                    if hasattr(tables, 'Float128Col'):
                        if isinstance(row['var13'], np.ndarray):
                            row['var13'] = np.array((float(i),)*4)
                        else:
                            row['var13'] = float(i)
                    if hasattr(tables, 'Complex192Col'):
                        if isinstance(row['var14'], np.ndarray):
                            row['var14'] = [float(i)+0j, 1 + float(i)*1j]
                        else:
                            row['var14'] = 1 + float(i)*1j
                    if hasattr(tables, 'Complex256Col'):
                        if isinstance(row['var15'], np.ndarray):
                            row['var15'] = [float(i)+0j, 1 + float(i)*1j]
                        else:
                            row['var15'] = 1 + float(i)*1j

                    # var6 will be like var3 but byteswaped
                    row['var6'] = (((row['var3'] >> 8) & 0xff) +
                                   ((row['var3'] << 8) & 0xff00))
                    # print("Saving -->", row)
                    row.append()

            # Flush the buffer for this table
            table.flush()
            # Create a new group (descendant of group)
            group2 = self.h5file.create_group(group, 'group'+str(j))
            # Iterate over this new group (group2)
            group = group2

    def test00_description(self):
        """Checking table description and descriptive fields."""

        self.h5file = tables.open_file(self.h5fname)

        tbl = self.h5file.get_node('/table0')
        desc = tbl.description

        if isinstance(self.record, dict):
            columns = self.record
        elif isinstance(self.record, np.ndarray):
            descr, _ = descr_from_dtype(self.record.dtype)
            columns = descr._v_colobjects
        elif isinstance(self.record, np.dtype):
            descr, _ = descr_from_dtype(self.record)
            columns = descr._v_colobjects
        else:
            # This is an ordinary description.
            columns = self.record.columns

        # Check table and description attributes at the same time.
        # These checks are only valid for non-nested tables.

        # Column names.
        fix_n_column = 10
        expectedNames = ['var%d' % n for n in range(1, fix_n_column + 1)]
        types = ("float16", "float96", "float128", "complex192", "complex256")
        for n, typename in enumerate(types, fix_n_column + 1):
            name = typename.capitalize() + 'Col'
            if hasattr(tables, name):
                expectedNames.append('var%d' % n)

        self.assertEqual(expectedNames, list(tbl.colnames))
        self.assertEqual(expectedNames, list(desc._v_names))

        # Column instances.
        for colname in expectedNames:
            self.assertTrue(tbl.colinstances[colname]
                            is tbl.cols._f_col(colname))

        # Column types.
        expectedTypes = [columns[colname].dtype
                         for colname in expectedNames]
        self.assertEqual(expectedTypes,
                         [tbl.coldtypes[v] for v in expectedNames])
        self.assertEqual(expectedTypes,
                         [desc._v_dtypes[v] for v in expectedNames])

        # Column string types.
        expectedTypes = [columns[colname].type
                         for colname in expectedNames]
        self.assertEqual(expectedTypes,
                         [tbl.coltypes[v] for v in expectedNames])
        self.assertEqual(expectedTypes,
                         [desc._v_types[v] for v in expectedNames])

        # Column defaults.
        for v in expectedNames:
            if common.verbose:
                print("dflt-->", columns[v].dflt, type(columns[v].dflt))
                print("coldflts-->", tbl.coldflts[v], type(tbl.coldflts[v]))
                print("desc.dflts-->", desc._v_dflts[v],
                      type(desc._v_dflts[v]))
            self.assertTrue(areArraysEqual(tbl.coldflts[v], columns[v].dflt))
            self.assertTrue(areArraysEqual(desc._v_dflts[v], columns[v].dflt))

        # Column path names.
        self.assertEqual(expectedNames, list(desc._v_pathnames))

        # Column objects.
        for colName in expectedNames:
            expectedCol = columns[colName]
            col = desc._v_colobjects[colName]

            self.assertEqual(expectedCol.dtype, col.dtype)
            self.assertEqual(expectedCol.type, col.type)

    def test01_readTable(self):
        """Checking table read."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01_readTable..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Choose a small value for buffer size
        table.nrowsinbuf = 3
        # Read the records and select those with "var2" file less than 20
        result = [rec['var2'] for rec in table.iterrows() if rec['var2'] < 20]
        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last record in table ==>", rec)
            print("Total selected records in table ==> ", len(result))
        nrows = self.expectedrows - 1
        rec = list(table.iterrows())[-1]
        self.assertEqual((rec['var1'], rec['var2'], rec['var7']),
                         (b"0001", nrows, b"1"))
        if isinstance(rec['var5'], np.ndarray):
            self.assertTrue(allequal(rec['var5'],
                                     np.array((float(nrows),)*4, np.float32)))
        else:
            self.assertEqual(rec['var5'], float(nrows))
        if isinstance(rec['var9'], np.ndarray):
            self.assertTrue(
                allequal(rec['var9'],
                         np.array([0.+float(nrows)*1.j, float(nrows)+0.j],
                                  np.complex64)))
        else:
            self.assertEqual((rec['var9']), float(nrows)+0.j)
        self.assertEqual(len(result), 20)

    def test01a_fetch_all_fields(self):
        """Checking table read (using Row.fetch_all_fields)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01a_fetch_all_fields..." %
                  self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Choose a small value for buffer size
        table.nrowsinbuf = 3
        # Read the records and select those with "var2" file less than 20
        result = [rec.fetch_all_fields() for rec in table.iterrows()
                  if rec['var2'] < 20]
        rec = result[-1]
        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last record in table ==>", rec)
            print("Total selected records in table ==> ", len(result))
        nrows = 20 - 1
        strnrows = "%04d" % (self.expectedrows - nrows)
        strnrows = strnrows.encode('ascii')
        self.assertEqual((rec['var1'], rec['var2'], rec['var7']),
                         (strnrows, nrows, b"1"))
        if isinstance(rec['var5'], np.ndarray):
            self.assertTrue(allequal(rec['var5'],
                                     np.array((float(nrows),)*4, np.float32)))
        else:
            self.assertEqual(rec['var5'], float(nrows))
        if isinstance(rec['var9'], np.ndarray):
            self.assertTrue(
                allequal(rec['var9'],
                         np.array([0.+float(nrows)*1.j, float(nrows)+0.j],
                                  np.complex64)))
        else:
            self.assertEqual(rec['var9'], float(nrows)+0.j)
        self.assertEqual(len(result), 20)

    def test01a_integer(self):
        """Checking table read (using Row[integer])"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01a_integer..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Choose a small value for buffer size
        table.nrowsinbuf = 3
        # Read the records and select those with "var2" file less than 20
        result = [rec[1] for rec in table.iterrows()
                  if rec['var2'] < 20]
        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Total selected records in table ==> ", len(result))
            print("All results ==>", result)
        self.assertEqual(len(result), 20)
        self.assertEqual(result, list(range(20)))

    def test01a_extslice(self):
        """Checking table read (using Row[::2])"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01a_extslice..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Choose a small value for buffer size
        table.nrowsinbuf = 3
        # Read the records and select those with "var2" file less than 20
        result = [rec[::2] for rec in table.iterrows()
                  if rec['var2'] < 20]
        rec = result[-1]
        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last record in table ==>", rec)
            print("Total selected records in table ==> ", len(result))
        nrows = 20 - 1
        strnrows = "%04d" % (self.expectedrows - nrows)
        strnrows = strnrows.encode('ascii')
        self.assertEqual(rec[:2], (strnrows, 19))
        self.assertEqual(rec[3], b'1')
        if isinstance(rec[2], np.ndarray):
            self.assertTrue(allequal(rec[2],
                                     np.array((float(nrows),)*4, np.float32)))
        else:
            self.assertEqual(rec[2], nrows)
        if isinstance(rec[4], np.ndarray):
            self.assertTrue(
                allequal(rec[4],
                         np.array([0.+float(nrows)*1.j, float(nrows)+0.j],
                                  np.complex64)))
        else:
            self.assertEqual(rec[4], float(nrows)+0.j)
        self.assertEqual(len(result), 20)

    def test01a_nofield(self):
        """Checking table read (using Row['no-field'])"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01a_nofield..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Check that a KeyError is raised
        # self.assertRaises only work with functions
        # self.assertRaises(KeyError, [rec['no-field'] for rec in table])
        with self.assertRaises(KeyError):
            result = [rec['no-field'] for rec in table]
            if common.verbose:
                print('result:', result)

    def test01a_badtypefield(self):
        """Checking table read (using Row[{}])"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01a_badtypefield..." %
                  self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Check that a TypeError is raised
        # self.assertRaises only work with functions
        # self.assertRaises(TypeError, [rec[{}] for rec in table])
        with self.assertRaises(TypeError):
            result = [rec[{}] for rec in table]
            if common.verbose:
                print('result:', result)

    def test01b_readTable(self):
        """Checking table read and cuts (multidimensional columns case)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01b_readTable..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Choose a small value for buffer size
        table.nrowsinbuf = 3
        # Read the records and select those with "var2" file less than 20
        result = [rec['var5'] for rec in table.iterrows()
                  if rec['var2'] < 20]
        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last record in table ==>", rec)
            print("rec['var5'] ==>", rec['var5'], end=' ')
            print("nrows ==>", table.nrows)
            print("Total selected records in table ==> ", len(result))
        nrows = table.nrows
        rec = list(table.iterrows())[-1]
        if isinstance(rec['var5'], np.ndarray):
            npt.assert_array_equal(result[0],
                                   np.array((float(0),)*4, np.float32))
            npt.assert_array_equal(result[1],
                                   np.array((float(1),)*4, np.float32))
            npt.assert_array_equal(result[2],
                                   np.array((float(2),)*4, np.float32))
            npt.assert_array_equal(result[3],
                                   np.array((float(3),)*4, np.float32))
            npt.assert_array_equal(result[10],
                                   np.array((float(10),)*4, np.float32))
            npt.assert_array_equal(rec['var5'],
                                   np.array((float(nrows-1),)*4, np.float32))
        else:
            self.assertEqual(rec['var5'], float(nrows - 1))

        # Read the records and select those with "var2" file less than 20
        result = [record['var10'] for record in table.iterrows()
                  if record['var2'] < 20]
        if isinstance(rec['var10'], np.ndarray):
            npt.assert_array_equal(
                result[0],
                np.array([float(0)+0.j, 1.+float(0)*1j], np.complex128))
            npt.assert_array_equal(
                result[1],
                np.array([float(1)+0.j, 1.+float(1)*1j], np.complex128))
            npt.assert_array_equal(
                result[2],
                np.array([float(2)+0.j, 1.+float(2)*1j], np.complex128))
            npt.assert_array_equal(
                result[3],
                np.array([float(3)+0.j, 1.+float(3)*1j], np.complex128))
            npt.assert_array_equal(
                result[10],
                np.array([float(10)+0.j, 1.+float(10)*1j], np.complex128))
            npt.assert_array_equal(
                rec['var10'],
                np.array([float(nrows-1)+0.j, 1.+float(nrows-1)*1j],
                         np.complex128))
        else:
            self.assertEqual(rec['var10'], 1.+float(nrows-1)*1j)
        self.assertEqual(len(result), 20)

    def test01c_readTable(self):
        """Checking nested iterators (reading)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01c_readTable..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Read the records and select those with "var2" file less than 20
        result = []
        for rec in table.iterrows(stop=2):
            for rec2 in table.iterrows(stop=2):
                if rec2['var2'] < 20:
                    result.append([rec['var2'], rec2['var2']])
        if common.verbose:
            print("result ==>", result)

        self.assertEqual(result, [[0, 0], [0, 1], [1, 0], [1, 1]])

    def test01d_readTable(self):
        """Checking nested iterators (reading, mixed conditions)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01d_readTable..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Read the records and select those with "var2" file less than 20
        result = []
        for rec in table.iterrows(stop=2):
            for rec2 in table.where('var2 < 20', stop=2):
                result.append([rec['var2'], rec2['var2']])
        if common.verbose:
            print("result ==>", result)

        self.assertEqual(result, [[0, 0], [0, 1], [1, 0], [1, 1]])

    def test01e_readTable(self):
        """Checking nested iterators (reading, both conditions)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01e_readTable..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Read the records and select those with "var2" file less than 20
        result = []
        for rec in table.where('var3 < 2'):
            for rec2 in table.where('var2 < 3'):
                result.append([rec['var2'], rec2['var3']])
        if common.verbose:
            print("result ==>", result)

        self.assertEqual(result,
                         [[0, 0], [0, 1], [0, 2], [1, 0], [1, 1], [1, 2]])

    def test01f_readTable(self):
        """Checking nested iterators (reading, break in the loop)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01f_readTable..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Read the records and select those with "var2" file less than 20
        result = []
        for rec in table.where('var3 < 2'):
            for rec2 in table.where('var2 < 4'):
                if rec2['var2'] >= 3:
                    break
                result.append([rec['var2'], rec2['var3']])
        if common.verbose:
            print("result ==>", result)

        self.assertEqual(result,
                         [[0, 0], [0, 1], [0, 2], [1, 0], [1, 1], [1, 2]])

    def test01g_readTable(self):
        """Checking iterator with an evanescent table."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01g_readTable..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")

        # Read from an evanescent table
        result = [rec['var2'] for rec in self.h5file.get_node("/table0")
                  if rec['var2'] < 20]

        self.assertEqual(len(result), 20)

    def test02_AppendRows(self):
        """Checking whether appending record rows works or not."""

        # Now, open it, but in "append" mode
        self.h5file = tables.open_file(self.h5fname, mode="a")
        self.rootgroup = self.h5file.root
        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test02_AppendRows..." % self.__class__.__name__)

        # Get a table
        table = self.h5file.get_node("/group0/table1")
        # Get their row object
        row = table.row
        if common.verbose:
            print("Nrows in old", table._v_pathname, ":", table.nrows)
            print("Record Format ==>", table.description._v_nested_formats)
            print("Record Size ==>", table.rowsize)
        # Append some rows
        for i in range(self.appendrows):
            s = '%04d' % (self.appendrows - i)
            row['var1'] = s.encode('ascii')
            row['var7'] = s[-1].encode('ascii')
            row['var2'] = i
            row['var3'] = i % self.maxshort
            if isinstance(row['var4'], np.ndarray):
                row['var4'] = [float(i), float(i * i)]
            else:
                row['var4'] = float(i)
            if isinstance(row['var8'], np.ndarray):
                row['var8'] = [0, 1]
            else:
                row['var8'] = 1
            if isinstance(row['var9'], np.ndarray):
                row['var9'] = [0.+float(i)*1j, float(i)+0.j]
            else:
                row['var9'] = float(i)+0.j
            if isinstance(row['var10'], np.ndarray):
                row['var10'] = [float(i)+0.j, 1.+float(i)*1j]
            else:
                row['var10'] = 1.+float(i)*1j
            if isinstance(row['var5'], np.ndarray):
                row['var5'] = np.array((float(i),)*4)
            else:
                row['var5'] = float(i)
            if hasattr(tables, 'Float16Col'):
                if isinstance(row['var11'], np.ndarray):
                    row['var11'] = np.array((float(i),)*4)
                else:
                    row['var11'] = float(i)
            if hasattr(tables, 'Float96Col'):
                if isinstance(row['var12'], np.ndarray):
                    row['var12'] = np.array((float(i),)*4)
                else:
                    row['var12'] = float(i)
            if hasattr(tables, 'Float128Col'):
                if isinstance(row['var13'], np.ndarray):
                    row['var13'] = np.array((float(i),)*4)
                else:
                    row['var13'] = float(i)
            if hasattr(tables, 'Complex192Col'):
                if isinstance(row['var14'], np.ndarray):
                    row['var14'] = [float(i)+0j, 1 + float(i)*1j]
                else:
                    row['var14'] = 1 + float(i)*1j
            if hasattr(tables, 'Complex256Col'):
                if isinstance(row['var15'], np.ndarray):
                    row['var15'] = [float(i)+0j, 1 + float(i)*1j]
                else:
                    row['var15'] = 1 + float(i)*1j

            row.append()

        # Flush the buffer for this table and read it
        table.flush()
        result = [r['var2'] for r in table.iterrows() if r['var2'] < 20]

        nrows = self.appendrows - 1
        row = list(table.iterrows())[-1]
        self.assertEqual((row['var1'], row['var2'], row['var7']),
                         (b"0001", nrows, b"1"))
        if isinstance(row['var5'], np.ndarray):
            self.assertTrue(allequal(row['var5'],
                                     np.array((float(nrows),)*4, np.float32)))
        else:
            self.assertEqual(row['var5'], float(nrows))
        if self.appendrows <= 20:
            add = self.appendrows
        else:
            add = 20
        self.assertEqual(len(result), 20 + add)  # because we appended new rows

    # This test has been commented out because appending records without
    # flushing them explicitely is being warned from now on.
    # F. Alted 2006-08-03
    def _test02a_AppendRows(self):
        """Checking appending records without flushing explicitely."""

        # Now, open it, but in "append" mode
        self.h5file = tables.open_file(self.h5fname, mode="a")
        self.rootgroup = self.h5file.root
        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test02a_AppendRows..." % self.__class__.__name__)

        group = self.rootgroup
        for i in range(3):
            # Get a table
            table = self.h5file.get_node(group, 'table'+str(i))
            # Get the next group
            group = self.h5file.get_node(group, 'group'+str(i))
            # Get their row object
            row = table.row
            if common.verbose:
                print("Nrows in old", table._v_pathname, ":", table.nrows)
                print("Record Format ==>", table.description._v_nested_formats)
                print("Record Size ==>", table.rowsize)
            # Append some rows
            for i in range(self.appendrows):
                row['var1'] = '%04d' % (self.appendrows - i)
                row['var7'] = row['var1'][-1]
                row['var2'] = i
                row['var3'] = i % self.maxshort
                if isinstance(row['var4'], np.ndarray):
                    row['var4'] = [float(i), float(i * i)]
                else:
                    row['var4'] = float(i)
                if isinstance(row['var8'], np.ndarray):
                    row['var8'] = [0, 1]
                else:
                    row['var8'] = 1
                if isinstance(row['var9'], np.ndarray):
                    row['var9'] = [0.+float(i)*1j, float(i)+0.j]
                else:
                    row['var9'] = float(i)+0.j
                if isinstance(row['var10'], np.ndarray):
                    row['var10'] = [float(i)+0.j, 1.+float(i)*1j]
                else:
                    row['var10'] = 1.+float(i)*1j
                if isinstance(row['var5'], np.ndarray):
                    row['var5'] = np.array((float(i),)*4)
                else:
                    row['var5'] = float(i)
                if hasattr(tables, 'Float16Col'):
                    if isinstance(row['var11'], np.ndarray):
                        row['var11'] = np.array((float(i),)*4)
                    else:
                        row['var11'] = float(i)
                if hasattr(tables, 'Float96Col'):
                    if isinstance(row['var12'], np.ndarray):
                        row['var12'] = np.array((float(i),)*4)
                    else:
                        row['var12'] = float(i)
                if hasattr(tables, 'Float128Col'):
                    if isinstance(row['var13'], np.ndarray):
                        row['var13'] = np.array((float(i),)*4)
                    else:
                        row['var13'] = float(i)
                if hasattr(tables, 'Complex192Col'):
                    if isinstance(row['var14'], np.ndarray):
                        row['var14'] = [float(i)+0j, 1 + float(i)*1j]
                    else:
                        row['var14'] = 1 + float(i)*1j
                if hasattr(tables, 'Complex256Col'):
                    if isinstance(row['var15'], np.ndarray):
                        row['var15'] = [float(i)+0j, 1 + float(i)*1j]
                    else:
                        row['var15'] = 1 + float(i)*1j

                row.append()
            table.flush()

        # Close the file and re-open it.
        self.h5file.close()

        self.h5file = tables.open_file(self.h5fname, mode="a")
        table = self.h5file.root.table0
        # Flush the buffer for this table and read it
        result = [r['var2'] for r in table.iterrows() if r['var2'] < 20]

        nrows = self.appendrows - 1
        self.assertEqual((row['var1'], row['var2'], row['var7']),
                         ("0001", nrows, "1"))
        if isinstance(row['var5'], np.ndarray):
            self.assertTrue(allequal(row['var5'],
                                     np.array((float(nrows),)*4, np.float32)))
        else:
            self.assertEqual(row['var5'], float(nrows))
        if self.appendrows <= 20:
            add = self.appendrows
        else:
            add = 20
        self.assertEqual(len(result), 20 + add)  # because we appended new rows

    def test02b_AppendRows(self):
        """Checking whether appending *and* reading rows works or not"""

        # Now, open it, but in "append" mode
        self.h5file = tables.open_file(self.h5fname, mode="a")
        self.rootgroup = self.h5file.root
        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test02b_AppendRows..." % self.__class__.__name__)

        # Get a table
        table = self.h5file.get_node("/group0/table1")
        if common.verbose:
            print("Nrows in old", table._v_pathname, ":", table.nrows)
            print("Record Format ==>", table.description._v_nested_formats)
            print("Record Size ==>", table.rowsize)
        # Set a small number of buffer to make this test faster
        table.nrowsinbuf = 3
        # Get their row object
        row = table.row
        # Append some rows (3 * table.nrowsinbuf is enough for
        # checking purposes)
        for i in range(3 * table.nrowsinbuf):
            s = '%04d' % (self.appendrows - i)
            row['var1'] = s.encode('ascii')
            row['var7'] = s[-1].encode('ascii')
            # row['var7'] = table.cols['var1'][i][-1]
            row['var2'] = i
            row['var3'] = i % self.maxshort
            if isinstance(row['var4'], np.ndarray):
                row['var4'] = [float(i), float(i * i)]
            else:
                row['var4'] = float(i)
            if isinstance(row['var8'], np.ndarray):
                row['var8'] = [0, 1]
            else:
                row['var8'] = 1
            if isinstance(row['var9'], np.ndarray):
                row['var9'] = [0.+float(i)*1j, float(i)+0.j]
            else:
                row['var9'] = float(i)+0.j
            if isinstance(row['var10'], np.ndarray):
                row['var10'] = [float(i)+0.j, 1.+float(i)*1j]
            else:
                row['var10'] = 1.+float(i)*1j
            if isinstance(row['var5'], np.ndarray):
                row['var5'] = np.array((float(i),)*4)
            else:
                row['var5'] = float(i)
            if hasattr(tables, 'Float16Col'):
                if isinstance(row['var11'], np.ndarray):
                    row['var11'] = np.array((float(i),)*4)
                else:
                    row['var11'] = float(i)
            if hasattr(tables, 'Float96Col'):
                if isinstance(row['var12'], np.ndarray):
                    row['var12'] = np.array((float(i),)*4)
                else:
                    row['var12'] = float(i)
            if hasattr(tables, 'Float128Col'):
                if isinstance(row['var13'], np.ndarray):
                    row['var13'] = np.array((float(i),)*4)
                else:
                    row['var13'] = float(i)
            if hasattr(tables, 'Complex192Col'):
                if isinstance(row['var14'], np.ndarray):
                    row['var14'] = [float(i)+0j, 1 + float(i)*1j]
                else:
                    row['var14'] = 1 + float(i)*1j
            if hasattr(tables, 'Complex256Col'):
                if isinstance(row['var15'], np.ndarray):
                    row['var15'] = [float(i)+0j, 1 + float(i)*1j]
                else:
                    row['var15'] = 1 + float(i)*1j

            row.append()
            # the next call can mislead the counters
            result = [row2['var2'] for row2 in table]
            # warning! the next will result into wrong results
            # result = [ row['var2'] for row in table ]
            # This is because the iterator for writing and for reading
            # cannot be shared!

        # Do not flush the buffer for this table and try to read it
        # We are forced now to flush tables after append operations
        # because of unsolved issues with the LRU cache that are too
        # difficult to track.
        # F. Alted 2006-08-03
        table.flush()
        result = [
            row3['var2'] for row3 in table.iterrows() if row3['var2'] < 20
        ]
        if common.verbose:
            print("Result length ==>", len(result))
            print("Result contents ==>", result)
        self.assertEqual(len(result), 20 + 3 * table.nrowsinbuf)
        self.assertEqual(result, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
                                  10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
                                  0, 1, 2, 3, 4, 5, 6, 7, 8])
        # Check consistency of I/O buffers when doing mixed I/O operations
        # That is, the next should work in these operations
        # row['var1'] = '%04d' % (self.appendrows - i)
        # row['var7'] = row['var1'][-1]
        result7 = [
            row4['var7'] for row4 in table.iterrows() if row4['var2'] < 20
        ]
        if common.verbose:
            print("Result7 length ==>", len(result7))
            print("Result7 contents ==>", result7)
        self.assertEqual(
            result7,
            [b'0', b'9', b'8', b'7', b'6', b'5', b'4', b'3', b'2', b'1',
             b'0', b'9', b'8', b'7', b'6', b'5', b'4', b'3', b'2', b'1',
             b'0', b'9', b'8', b'7', b'6', b'5', b'4', b'3', b'2'])

    def test02d_AppendRows(self):
        """Checking appending using the same Row object after flushing."""

        # This test is kind of magic, but it is a good sanity check anyway.

        # Now, open it, but in "append" mode
        self.h5file = tables.open_file(self.h5fname, mode="a")
        self.rootgroup = self.h5file.root
        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test02d_AppendRows..." % self.__class__.__name__)

        # Get a table
        table = self.h5file.get_node("/group0/table1")
        if common.verbose:
            print("Nrows in old", table._v_pathname, ":", table.nrows)
            print("Record Format ==>", table.description._v_nested_formats)
            print("Record Size ==>", table.rowsize)
        # Set a small number of buffer to make this test faster
        table.nrowsinbuf = 3
        # Get their row object
        row = table.row
        # Append some rows
        for i in range(10):
            row['var2'] = 100 + i
            row.append()
        # Force a flush
        table.flush()
        # Add new rows
        for i in range(9):
            row['var2'] = 110 + i
            row.append()
        table.flush()  # XXX al eliminar...
        result = [
            r['var2'] for r in table.iterrows() if 100 <= r['var2'] < 120
        ]
        if common.verbose:
            print("Result length ==>", len(result))
            print("Result contents ==>", result)
        if table.nrows > 119:
            # Case for big tables
            self.assertEqual(len(result), 39)
            self.assertEqual(result,
                             [100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
                              110, 111, 112, 113, 114, 115, 116, 117, 118, 119,
                              100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
                              110, 111, 112, 113, 114, 115, 116, 117, 118])
        else:
            self.assertEqual(len(result), 19)
            self.assertEqual(result,
                             [100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
                              110, 111, 112, 113, 114, 115, 116, 117, 118])

    def test02e_AppendRows(self):
        """Checking appending using the Row of an unreferenced table."""
        # See ticket #94 (http://www.pytables.org/trac/ticket/94).

        # Reopen the file in append mode.
        self.h5file = tables.open_file(self.h5fname, mode='a')

        # Get the row handler which will outlive the reference to the table.
        table = self.h5file.get_node('/group0/table1')
        oldnrows = table.nrows
        row = table.row

        # Few appends are made to avoid flushing the buffers in ``row``.

        # First case: append to an alive (referenced) table.
        row.append()
        table.flush()
        newnrows = table.nrows
        self.assertEqual(newnrows, oldnrows + 1,
                         "Append to alive table failed.")

        if self.h5file._node_manager.cache.nslots == 0:
            # Skip this test from here on because the second case
            # won't work when thereis not a node cache.
            return

        # Second case: append to a dead (unreferenced) table.
        del table
        row.append()
        table = self.h5file.get_node('/group0/table1')
        table.flush()
        newnrows = table.nrows
        self.assertEqual(newnrows, oldnrows + 2,
                         "Append to dead table failed.")

    # CAVEAT: The next test only works for tables with rows < 2**15
    def test03_endianess(self):
        """Checking if table is endianess aware."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test03_endianess..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/group0/group1/table2")

        # Read the records and select the ones with "var3" column less than 20
        result = [rec['var2'] for rec in table.iterrows() if rec['var3'] < 20]
        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("On-disk byteorder ==>", table.byteorder)
            print("Last record in table ==>", rec)
            print("Selected records ==>", result)
            print("Total selected records in table ==>", len(result))
        nrows = self.expectedrows - 1
        self.assertEqual(table.byteorder,
                         {"little": "big", "big": "little"}[sys.byteorder])
        rec = list(table.iterrows())[-1]
        self.assertEqual((rec['var1'], rec['var3']), (b"0001", nrows))
        self.assertEqual(len(result), 20)

    def test04_delete(self):
        """Checking whether a single row can be deleted."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test04_delete..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "a")
        table = self.h5file.get_node("/table0")

        # Read the records and select the ones with "var2" column less than 20
        result = [r['var2'] for r in table.iterrows() if r['var2'] < 20]

        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last selected value ==>", result[-1])
            print("Total selected records in table ==>", len(result))

        nrows = table.nrows
        table.nrowsinbuf = 3  # small value of the buffer
        # Delete the twenty-th row
        table.remove_rows(19, 20)

        # Re-read the records
        result2 = [r['var2'] for r in table.iterrows() if r['var2'] < 20]

        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last selected value ==>", result2[-1])
            print("Total selected records in table ==>", len(result2))

        self.assertEqual(table.nrows, nrows - 1)
        self.assertEqual(table.shape, (nrows - 1,))
        # Check that the new list is smaller than the original one
        self.assertEqual(len(result), len(result2) + 1)
        self.assertEqual(result[:-1], result2)

    def test04a_delete(self):
        """Checking whether a single row can be deleted."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test04_delete..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "a")
        table = self.h5file.get_node("/table0")

        # Read the records and select the ones with "var2" column less than 20
        result = [r['var2'] for r in table.iterrows() if r['var2'] < 20]

        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last selected value ==>", result[-1])
            print("Total selected records in table ==>", len(result))

        nrows = table.nrows
        table.nrowsinbuf = 3  # small value of the buffer
        # Delete the twenty-th row
        table.remove_row(19)

        # Re-read the records
        result2 = [r['var2'] for r in table.iterrows() if r['var2'] < 20]

        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last selected value ==>", result2[-1])
            print("Total selected records in table ==>", len(result2))

        self.assertEqual(table.nrows, nrows - 1)
        self.assertEqual(table.shape, (nrows - 1,))
        # Check that the new list is smaller than the original one
        self.assertEqual(len(result), len(result2) + 1)
        self.assertEqual(result[:-1], result2)

    def test04b_delete(self):
        """Checking whether a range of rows can be deleted."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test04b_delete..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "a")
        table = self.h5file.get_node("/table0")

        # Read the records and select the ones with "var2" column less than 20
        result = [r['var2'] for r in table.iterrows() if r['var2'] < 20]

        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last selected value ==>", result[-1])
            print("Total selected records in table ==>", len(result))

        nrows = table.nrows
        table.nrowsinbuf = 4  # small value of the buffer
        # Delete the last ten rows
        table.remove_rows(10, 20)

        # Re-read the records
        result2 = [r['var2'] for r in table.iterrows() if r['var2'] < 20]

        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last selected value ==>", result2[-1])
            print("Total selected records in table ==>", len(result2))

        self.assertEqual(table.nrows, nrows - 10)
        self.assertEqual(table.shape, (nrows - 10,))
        # Check that the new list is smaller than the original one
        self.assertEqual(len(result), len(result2) + 10)
        self.assertEqual(result[:10], result2)

    def test04c_delete(self):
        """Checking whether removing a bad range of rows is detected."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test04c_delete..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "a")
        table = self.h5file.get_node("/table0")

        # Read the records and select the ones with "var2" column less than 20
        result = [r['var2'] for r in table.iterrows() if r['var2'] < 20]

        nrows = table.nrows
        table.nrowsinbuf = 5  # small value of the buffer
        # Delete a too large range of rows
        table.remove_rows(10, nrows + 100)

        # Re-read the records
        result2 = [r['var2'] for r in table.iterrows() if r['var2'] < 20]

        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last selected value ==>", result2[-1])
            print("Total selected records in table ==>", len(result2))

        self.assertEqual(table.nrows, 10)
        self.assertEqual(table.shape, (10,))
        # Check that the new list is smaller than the original one
        self.assertEqual(len(result), len(result2) + 10)
        self.assertEqual(result[:10], result2)

    def test04d_delete(self):
        """Checking whether removing rows several times at once is working."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test04d_delete..." % self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "a")
        table = self.h5file.get_node("/table0")

        # Read the records and select the ones with "var2" column less than 20
        result = [r['var2'] for r in table if r['var2'] < 20]

        nrows = table.nrows
        nrowsinbuf = table.nrowsinbuf
        table.nrowsinbuf = 6  # small value of the buffer
        # Delete some rows
        table.remove_rows(10, 15)
        # It's necessary to restore the value of buffer to use the row object
        # afterwards...
        table.nrowsinbuf = nrowsinbuf

        # Append some rows
        row = table.row
        for i in range(10, 15):
            row['var1'] = '%04d' % (self.appendrows - i)
            # This line gives problems on Windows. Why?
            # row['var7'] = row['var1'][-1]
            row['var2'] = i
            row['var3'] = i % self.maxshort
            if isinstance(row['var4'], np.ndarray):
                row['var4'] = [float(i), float(i * i)]
            else:
                row['var4'] = float(i)
            if isinstance(row['var8'], np.ndarray):
                row['var8'] = [0, 1]
            else:
                row['var8'] = 1
            if isinstance(row['var9'], np.ndarray):
                row['var9'] = [0.+float(i)*1j, float(i)+0.j]
            else:
                row['var9'] = float(i)+0.j
            if isinstance(row['var10'], np.ndarray):
                row['var10'] = [float(i)+0.j, 1.+float(i)*1j]
            else:
                row['var10'] = 1.+float(i)*1j
            if isinstance(row['var5'], np.ndarray):
                row['var5'] = np.array((float(i),)*4)
            else:
                row['var5'] = float(i)
            if hasattr(tables, 'Float16Col'):
                if isinstance(row['var11'], np.ndarray):
                    row['var11'] = np.array((float(i),)*4)
                else:
                    row['var11'] = float(i)
            if hasattr(tables, 'Float96Col'):
                if isinstance(row['var12'], np.ndarray):
                    row['var12'] = np.array((float(i),)*4)
                else:
                    row['var12'] = float(i)
            if hasattr(tables, 'Float128Col'):
                if isinstance(row['var13'], np.ndarray):
                    row['var13'] = np.array((float(i),)*4)
                else:
                    row['var13'] = float(i)
            if hasattr(tables, 'Complex192Col'):
                if isinstance(row['var14'], np.ndarray):
                    row['var14'] = [float(i)+0j, 1 + float(i)*1j]
                else:
                    row['var14'] = 1 + float(i)*1j
            if hasattr(tables, 'Complex256Col'):
                if isinstance(row['var15'], np.ndarray):
                    row['var15'] = [float(i)+0j, 1 + float(i)*1j]
                else:
                    row['var15'] = 1 + float(i)*1j

            row.append()
        # Flush the buffer for this table
        table.flush()

        # Delete 5 rows more
        table.remove_rows(5, 10)

        # Re-read the records
        result2 = [r['var2'] for r in table if r['var2'] < 20]

        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            print("Last selected value ==>", result2[-1])
            print("Total selected records in table ==>", len(result2))

        self.assertEqual(table.nrows, nrows - 5)
        self.assertEqual(table.shape, (nrows - 5,))
        # Check that the new list is smaller than the original one
        self.assertEqual(len(result), len(result2) + 5)
        # The last values has to be equal
        self.assertEqual(result[10:15], result2[10:15])

    def test05_filtersTable(self):
        """Checking tablefilters."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test05_filtersTable..." %
                  self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        # Check filters:
        if self.compress != table.filters.complevel and common.verbose:
            print("Error in compress. Class:", self.__class__.__name__)
            print("self, table:", self.compress, table.filters.complevel)
        self.assertEqual(table.filters.complevel, self.compress)
        if self.compress > 0 and tables.which_lib_version(self.complib):
            self.assertEqual(table.filters.complib, self.complib)
        if self.shuffle != table.filters.shuffle and common.verbose:
            print("Error in shuffle. Class:", self.__class__.__name__)
            print("self, table:", self.shuffle, table.filters.shuffle)
        self.assertEqual(self.shuffle, table.filters.shuffle)
        if self.fletcher32 != table.filters.fletcher32 and common.verbose:
            print("Error in fletcher32. Class:", self.__class__.__name__)
            print("self, table:", self.fletcher32, table.filters.fletcher32)
        self.assertEqual(self.fletcher32, table.filters.fletcher32)

    def test06_attributes(self):
        self.h5file = tables.open_file(self.h5fname)
        obj = self.h5file.get_node('/table0')

        self.assertEqual(obj.flavor, 'numpy')
        self.assertEqual(obj.shape, (self.expectedrows,))
        self.assertEqual(obj.ndim, 1)
        self.assertEqual(obj.nrows, self.expectedrows)


class BasicWriteTestCase(BasicTestCase):
    title = "BasicWrite"


class OldRecordBasicWriteTestCase(BasicTestCase):
    title = "OldRecordBasicWrite"
    record = OldRecord


class DictWriteTestCase(BasicTestCase):
    # This checks also unidimensional arrays as columns
    title = "DictWrite"
    record = RecordDescriptionDict
    nrows = 21
    nrowsinbuf = 3  # Choose a small value for the buffer size
    start = 0
    stop = 10
    step = 3


@unittest.skipIf(sys.version_info >= (3,), 'requires Python 2')
class DictWriteTestCase2(DictWriteTestCase):
    record = RecordDescriptionDict.copy()
    record[str('var1')] = record.pop('var1')


# Pure NumPy dtype
class NumPyDTWriteTestCase(BasicTestCase):
    title = "NumPyDTWriteTestCase"
    formats = "a4,i4,i2,2f8,f4,i2,a1,b1,c8,c16".split(',')
    names = 'var1,var2,var3,var4,var5,var6,var7,var8,var9,var10'.split(',')

    if hasattr(tables, 'Float16Col'):
        formats.append('f2')
        names.append('var11')
    if hasattr(tables, 'Float96Col'):
        formats.append('f12')
        names.append('var12')
    if hasattr(tables, 'Float128Col'):
        formats.append('f16')
        names.append('var13')
    if hasattr(tables, 'Complex192Col'):
        formats.append('c24')
        names.append('var14')
    if hasattr(tables, 'Complex256Col'):
        formats.append('c32')
        names.append('var15')

    record = np.dtype(','.join(formats))
    record.names = names


class RecArrayOneWriteTestCase(BasicTestCase):
    title = "RecArrayOneWrite"
    formats = "a4,i4,i2,2f8,f4,i2,a1,b1,c8,c16".split(',')
    names = 'var1,var2,var3,var4,var5,var6,var7,var8,var9,var10'.split(',')

    if hasattr(tables, 'Float16Col'):
        formats.append('f2')
        names.append('var11')
    if hasattr(tables, 'Float96Col'):
        formats.append('f12')
        names.append('var12')
    if hasattr(tables, 'Float128Col'):
        formats.append('f16')
        names.append('var13')
    if hasattr(tables, 'Complex192Col'):
        formats.append('c24')
        names.append('var14')
    if hasattr(tables, 'Complex256Col'):
        formats.append('c32')
        names.append('var15')

    record = records.array(None, shape=0, formats=','.join(formats),
                           names=names)


class RecArrayTwoWriteTestCase(BasicTestCase):
    title = "RecArrayTwoWrite"
    expectedrows = 100
    recarrayinit = 1
    formats = "a4,i4,i2,2f8,f4,i2,a1,b1,c8,c16".split(',')
    names = 'var1,var2,var3,var4,var5,var6,var7,var8,var9,var10'.split(',')

    if hasattr(tables, 'Float16Col'):
        formats.append('f2')
        names.append('var11')
    if hasattr(tables, 'Float96Col'):
        formats.append('f12')
        names.append('var12')
    if hasattr(tables, 'Float128Col'):
        formats.append('f16')
        names.append('var13')
    if hasattr(tables, 'Complex192Col'):
        formats.append('c24')
        names.append('var14')
    if hasattr(tables, 'Complex256Col'):
        formats.append('c32')
        names.append('var15')

    recordtemplate = records.array(None, shape=1, formats=','.join(formats),
                                   names=names)


class RecArrayThreeWriteTestCase(BasicTestCase):
    title = "RecArrayThreeWrite"
    expectedrows = 100
    recarrayinit = 1
    formats = "a4,i4,i2,2f8,f4,i2,a1,b1,c8,c16".split(',')
    names = 'var1,var2,var3,var4,var5,var6,var7,var8,var9,var10'.split(',')

    if hasattr(tables, 'Float16Col'):
        formats.append('f2')
        names.append('var11')
    if hasattr(tables, 'Float96Col'):
        formats.append('f12')
        names.append('var12')
    if hasattr(tables, 'Float128Col'):
        formats.append('f16')
        names.append('var13')
    if hasattr(tables, 'Complex192Col'):
        formats.append('c24')
        names.append('var14')
    if hasattr(tables, 'Complex256Col'):
        formats.append('c32')
        names.append('var15')

    recordtemplate = records.array(None, shape=1, formats=','.join(formats),
                                   names=names)


@unittest.skipIf(not common.blosc_avail,
                 'BLOSC compression library not available')
class CompressBloscTablesTestCase(BasicTestCase):
    title = "CompressBloscTables"
    compress = 6
    complib = "blosc"


@unittest.skipIf(not common.blosc_avail,
                 'BLOSC compression library not available')
class CompressBloscShuffleTablesTestCase(BasicTestCase):
    title = "CompressBloscTables"
    compress = 1
    shuffle = 1
    complib = "blosc"


@unittest.skipIf(not common.blosc_avail,
                 'BLOSC compression library not available')
class CompressBloscBloscLZTablesTestCase(BasicTestCase):
    title = "CompressBloscLZTables"
    compress = 1
    shuffle = 1
    complib = "blosc:blosclz"


@unittest.skipIf(not common.blosc_avail,
                 'BLOSC compression library not available')
@unittest.skipIf('lz4' not in tables.blosc_compressor_list(), 'lz4 required')
class CompressBloscLZ4TablesTestCase(BasicTestCase):
    title = "CompressLZ4Tables"
    compress = 1
    shuffle = 1
    complib = "blosc:lz4"


@unittest.skipIf(not common.blosc_avail,
                 'BLOSC compression library not available')
@unittest.skipIf('lz4' not in tables.blosc_compressor_list(), 'lz4 required')
class CompressBloscLZ4HCTablesTestCase(BasicTestCase):
    title = "CompressLZ4HCTables"
    compress = 1
    shuffle = 1
    complib = "blosc:lz4hc"


@unittest.skipIf(not common.blosc_avail,
                 'BLOSC compression library not available')
@unittest.skipIf('snappy' not in tables.blosc_compressor_list(),
                 'snappy required')
class CompressBloscSnappyTablesTestCase(BasicTestCase):
    title = "CompressSnappyTables"
    compress = 1
    shuffle = 1
    complib = "blosc:snappy"


@unittest.skipIf(not common.blosc_avail,
                 'BLOSC compression library not available')
@unittest.skipIf('zlib' not in tables.blosc_compressor_list(), 'zlib required')
class CompressBloscZlibTablesTestCase(BasicTestCase):
    title = "CompressZlibTables"
    compress = 1
    shuffle = 1
    complib = "blosc:zlib"


@unittest.skipIf(not common.lzo_avail, 'LZO compression library not available')
class CompressLZOTablesTestCase(BasicTestCase):
    title = "CompressLZOTables"
    compress = 1
    complib = "lzo"


@unittest.skipIf(not common.lzo_avail, 'LZO compression library not available')
class CompressLZOShuffleTablesTestCase(BasicTestCase):
    title = "CompressLZOTables"
    compress = 1
    shuffle = 1
    complib = "lzo"


@unittest.skipIf(not common.bzip2_avail,
                 'BZIP2 compression library not available')
class CompressBzip2TablesTestCase(BasicTestCase):
    title = "CompressBzip2Tables"
    compress = 1
    complib = "bzip2"


@unittest.skipIf(not common.bzip2_avail,
                 'BZIP2 compression library not available')
class CompressBzip2ShuffleTablesTestCase(BasicTestCase):
    title = "CompressBzip2Tables"
    compress = 1
    shuffle = 1
    complib = "bzip2"


class CompressZLIBTablesTestCase(BasicTestCase):
    title = "CompressOneTables"
    compress = 1
    complib = "zlib"


class CompressZLIBShuffleTablesTestCase(BasicTestCase):
    title = "CompressOneTables"
    compress = 1
    shuffle = 1
    complib = "zlib"


class Fletcher32TablesTestCase(BasicTestCase):
    title = "Fletcher32Tables"
    fletcher32 = 1
    shuffle = 0
    complib = "zlib"


class AllFiltersTablesTestCase(BasicTestCase):
    title = "AllFiltersTables"
    compress = 1
    fletcher32 = 1
    shuffle = 1
    complib = "zlib"


class CompressTwoTablesTestCase(BasicTestCase):
    title = "CompressTwoTables"
    compress = 1
    # This checks also unidimensional arrays as columns
    record = RecordDescriptionDict


class BigTablesTestCase(BasicTestCase):
    title = "BigTables"
    # 10000 rows takes much more time than we can afford for tests
    # reducing to 1000 would be more than enough
    # F. Alted 2004-01-19
    # Will be executed only in common.heavy mode
    expectedrows = 10000
    appendrows = 100


class SizeOnDiskInMemoryPropertyTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(SizeOnDiskInMemoryPropertyTestCase, self).setUp()

        # set chunkshape so it divides evenly into array_size, to avoid
        # partially filled chunks
        self.chunkshape = (1000, )
        self.dtype = np.format_parser(['i4'] * 10, [], []).dtype
        # approximate size (in bytes) of non-data portion of hdf5 file
        self.hdf_overhead = 6000

    def create_table(self, complevel):
        filters = tables.Filters(complevel=complevel, complib='blosc')
        self.table = self.h5file.create_table('/', 'sometable', self.dtype,
                                              filters=filters,
                                              chunkshape=self.chunkshape)

    def test_zero_length(self):
        complevel = 0
        self.create_table(complevel)
        self.assertEqual(self.table.size_on_disk, 0)
        self.assertEqual(self.table.size_in_memory, 0)

    # add 10 chunks of data in one append
    def test_no_compression_one_append(self):
        complevel = 0
        self.create_table(complevel)
        self.table.append([tuple(range(10))] * self.chunkshape[0] * 10)
        self.assertEqual(self.table.size_on_disk, 10 * 1000 * 10 * 4)
        self.assertEqual(self.table.size_in_memory, 10 * 1000 * 10 * 4)

    # add 10 chunks of data in two appends
    def test_no_compression_multiple_appends(self):
        complevel = 0
        self.create_table(complevel)
        self.table.append([tuple(range(10))] * self.chunkshape[0] * 5)
        self.table.append([tuple(range(10))] * self.chunkshape[0] * 5)
        self.assertEqual(self.table.size_on_disk, 10 * 1000 * 10 * 4)
        self.assertEqual(self.table.size_in_memory, 10 * 1000 * 10 * 4)

    def test_with_compression(self):
        complevel = 1
        self.create_table(complevel)
        self.table.append([tuple(range(10))] * self.chunkshape[0] * 10)
        file_size = os.stat(self.h5fname).st_size
        self.assertTrue(
            abs(self.table.size_on_disk - file_size) <= self.hdf_overhead)
        self.assertEqual(self.table.size_in_memory, 10 * 1000 * 10 * 4)
        self.assertTrue(self.table.size_on_disk < self.table.size_in_memory)


class NonNestedTableReadTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(NonNestedTableReadTestCase, self).setUp()

        self.dtype = np.format_parser(['i4'] * 10, [], []).dtype
        self.table = self.h5file.create_table('/', 'table', self.dtype)
        self.shape = (100, )
        self.populate_file()

    def populate_file(self):
        self.array = np.zeros(self.shape, self.dtype)
        for row_num, row in enumerate(self.array):
            start = row_num * len(self.array.dtype.names)
            for value, col in enumerate(self.array.dtype.names, start):
                row[col] = value
        self.table.append(self.array)
        self.assertEqual(len(self.table), len(self.array))

    def test_read_all(self):
        output = self.table.read()
        npt.assert_array_equal(output, self.array)

    def test_read_slice1(self):
        output = self.table.read(0, 51)
        npt.assert_array_equal(output, self.array[0:51])

    def test_read_all_rows_specified_field(self):
        output = self.table.read(field='f1')
        npt.assert_array_equal(output, self.array['f1'])

    def test_read_slice1_specified_field(self):
        output = self.table.read(1, 64, field='f1')
        npt.assert_array_equal(output, self.array['f1'][1:64])

    def test_out_arg_with_non_numpy_flavor(self):
        output = np.empty(self.shape, self.dtype)
        self.table.flavor = 'python'
        self.assertRaises(TypeError, lambda: self.table.read(out=output))
        try:
            self.table.read(out=output)
        except TypeError as exc:
            self.assertTrue("Optional 'out' argument may only be" in str(exc))

    def test_read_all_out_arg(self):
        output = np.empty(self.shape, self.dtype)
        self.table.read(out=output)
        npt.assert_array_equal(output, self.array)

    def test_read_slice1_out_arg(self):
        output = np.empty((51, ), self.dtype)
        self.table.read(0, 51, out=output)
        npt.assert_array_equal(output, self.array[0:51])

    def test_read_all_rows_specified_field_out_arg(self):
        output = np.empty(self.shape, 'i4')
        self.table.read(field='f1', out=output)
        npt.assert_array_equal(output, self.array['f1'])

    def test_read_slice1_specified_field_out_arg(self):
        output = np.empty((63, ), 'i4')
        self.table.read(1, 64, field='f1', out=output)
        npt.assert_array_equal(output, self.array['f1'][1:64])

    def test_read_all_out_arg_sliced(self):
        output = np.empty((200, ), self.dtype)
        output['f0'] = np.random.randint(0, 10000, (200, ))
        output_orig = output.copy()
        self.table.read(out=output[0:100])
        npt.assert_array_equal(output[0:100], self.array)
        npt.assert_array_equal(output[100:], output_orig[100:])

    def test_all_fields_non_contiguous_slice_contiguous_buffer(self):
        output = np.empty((50, ), self.dtype)
        self.table.read(0, 100, 2, out=output)
        npt.assert_array_equal(output, self.array[0:100:2])

    def test_specified_field_non_contiguous_slice_contiguous_buffer(self):
        output = np.empty((50, ), 'i4')
        self.table.read(0, 100, 2, field='f3', out=output)
        npt.assert_array_equal(output, self.array['f3'][0:100:2])

    def test_all_fields_non_contiguous_buffer(self):
        output = np.empty((100, ), self.dtype)
        output_slice = output[0:100:2]
        self.assertRaises(ValueError, self.table.read, 0, 100, 2, None,
                          output_slice)
        # once Python 2.6 support is dropped, this could change
        # to assertRaisesRegexp to check exception type and message at once
        try:
            self.table.read(0, 100, 2, field=None, out=output_slice)
        except ValueError as exc:
            self.assertEqual('output array not C contiguous', str(exc))

    def test_specified_field_non_contiguous_buffer(self):
        output = np.empty((100, ), 'i4')
        output_slice = output[0:100:2]
        self.assertRaises(ValueError, self.table.read, 0, 100, 2, 'f3',
                          output_slice)
        try:
            self.table.read(0, 100, 2, field='f3', out=output_slice)
        except ValueError as exc:
            self.assertEqual('output array not C contiguous', str(exc))

    def test_all_fields_buffer_too_small(self):
        output = np.empty((99, ), self.dtype)
        self.assertRaises(ValueError, lambda: self.table.read(out=output))
        try:
            self.table.read(out=output)
        except ValueError as exc:
            self.assertTrue('output array size invalid, got' in str(exc))

    def test_specified_field_buffer_too_small(self):
        output = np.empty((99, ), 'i4')
        func = lambda: self.table.read(field='f5', out=output)
        self.assertRaises(ValueError, func)
        try:
            self.table.read(field='f5', out=output)
        except ValueError as exc:
            self.assertTrue('output array size invalid, got' in str(exc))

    def test_all_fields_buffer_too_large(self):
        output = np.empty((101, ), self.dtype)
        self.assertRaises(ValueError, lambda: self.table.read(out=output))
        try:
            self.table.read(out=output)
        except ValueError as exc:
            self.assertTrue('output array size invalid, got' in str(exc))


class TableReadByteorderTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(TableReadByteorderTestCase, self).setUp()
        self.system_byteorder = sys.byteorder
        self.other_byteorder = {
            'little': 'big', 'big': 'little'}[sys.byteorder]
        self.reverse_byteorders = {'little': '<', 'big': '>'}

    def create_table(self, byteorder):
        table_dtype_code = self.reverse_byteorders[byteorder] + 'i4'
        table_dtype = np.format_parser([table_dtype_code, 'a1'], [], []).dtype
        self.table = self.h5file.create_table('/', 'table', table_dtype,
                                              byteorder=byteorder)
        input_dtype = np.format_parser(['i4', 'a1'], [], []).dtype
        self.input_array = np.zeros((10, ), input_dtype)
        self.input_array['f0'] = np.arange(10)
        self.input_array['f1'] = b'a'
        self.table.append(self.input_array)

    def test_table_system_byteorder_no_out_argument(self):
        self.create_table(self.system_byteorder)
        output = self.table.read()
        self.assertEqual(byteorders[output['f0'].dtype.byteorder],
                         self.system_byteorder)
        npt.assert_array_equal(output['f0'], np.arange(10))

    def test_table_other_byteorder_no_out_argument(self):
        self.create_table(self.other_byteorder)
        output = self.table.read()
        self.assertEqual(byteorders[output['f0'].dtype.byteorder],
                         self.system_byteorder)
        npt.assert_array_equal(output['f0'], np.arange(10))

    def test_table_system_byteorder_out_argument_system_byteorder(self):
        self.create_table(self.system_byteorder)
        out_dtype_code = self.reverse_byteorders[self.system_byteorder] + 'i4'
        out_dtype = np.format_parser([out_dtype_code, 'a1'], [], []).dtype
        output = np.empty((10, ), out_dtype)
        self.table.read(out=output)
        self.assertEqual(byteorders[output['f0'].dtype.byteorder],
                         self.system_byteorder)
        npt.assert_array_equal(output['f0'], np.arange(10))

    def test_table_other_byteorder_out_argument_system_byteorder(self):
        self.create_table(self.other_byteorder)
        out_dtype_code = self.reverse_byteorders[self.system_byteorder] + 'i4'
        out_dtype = np.format_parser([out_dtype_code, 'a1'], [], []).dtype
        output = np.empty((10, ), out_dtype)
        self.table.read(out=output)
        self.assertEqual(byteorders[output['f0'].dtype.byteorder],
                         self.system_byteorder)
        npt.assert_array_equal(output['f0'], np.arange(10))

    def test_table_system_byteorder_out_argument_other_byteorder(self):
        self.create_table(self.system_byteorder)
        out_dtype_code = self.reverse_byteorders[self.other_byteorder] + 'i4'
        out_dtype = np.format_parser([out_dtype_code, 'a1'], [], []).dtype
        output = np.empty((10, ), out_dtype)
        self.assertRaises(ValueError, lambda: self.table.read(out=output))
        try:
            self.table.read(out=output)
        except ValueError as exc:
            self.assertTrue("array must be in system's byteorder" in str(exc))

    def test_table_other_byteorder_out_argument_other_byteorder(self):
        self.create_table(self.other_byteorder)
        out_dtype_code = self.reverse_byteorders[self.other_byteorder] + 'i4'
        out_dtype = np.format_parser([out_dtype_code, 'a1'], [], []).dtype
        output = np.empty((10, ), out_dtype)
        self.assertRaises(ValueError, lambda: self.table.read(out=output))
        try:
            self.table.read(out=output)
        except ValueError as exc:
            self.assertTrue("array must be in system's byteorder" in str(exc))


class BasicRangeTestCase(common.TempFileMixin, TestCase):
    # file  = "test.h5"
    open_mode = "w"
    title = "This is the table title"
    record = Record
    maxshort = 1 << 15
    expectedrows = 100
    compress = 0
    shuffle = 1
    # Default values
    nrows = 20
    nrowsinbuf = 3  # Choose a small value for the buffer size
    start = 1
    stop = nrows
    checkrecarray = 0
    checkgetCol = 0

    def setUp(self):
        super(BasicRangeTestCase, self).setUp()

        # Create an instance of an HDF5 Table
        self.rootgroup = self.h5file.root
        self.populateFile()
        self.h5file.close()

    def populateFile(self):
        group = self.rootgroup
        for j in range(3):
            # Create a table
            filterprops = tables.Filters(complevel=self.compress,
                                         shuffle=self.shuffle)
            table = self.h5file.create_table(group, 'table'+str(j),
                                             self.record,
                                             title=self.title,
                                             filters=filterprops,
                                             expectedrows=self.expectedrows)

            # Get the row object associated with the new table
            row = table.row

            # Fill the table
            for i in range(self.expectedrows):
                row['var1'] = '%04d' % (self.expectedrows - i)
                row['var7'] = row['var1'][-1]
                row['var2'] = i
                row['var3'] = i % self.maxshort
                if isinstance(row['var4'], np.ndarray):
                    row['var4'] = [float(i), float(i * i)]
                else:
                    row['var4'] = float(i)
                if isinstance(row['var5'], np.ndarray):
                    row['var5'] = np.array((float(i),)*4)
                else:
                    row['var5'] = float(i)

                # var6 will be like var3 but byteswaped
                row['var6'] = (
                    ((row['var3'] >> 8) & 0xff) + ((row['var3'] << 8) & 0xff00)
                )
                row.append()

            # Flush the buffer for this table
            table.flush()
            # Create a new group (descendant of group)
            group2 = self.h5file.create_group(group, 'group'+str(j))
            # Iterate over this new group (group2)
            group = group2

    def check_range(self):
        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.get_node("/table0")

        table.nrowsinbuf = self.nrowsinbuf
        resrange = slice(self.start, self.stop, self.step).indices(table.nrows)
        reslength = len(list(range(*resrange)))
        #print "self.checkrecarray = ", self.checkrecarray
        #print "self.checkgetCol = ", self.checkgetCol
        if self.checkrecarray:
            recarray = table.read(self.start, self.stop, self.step)
            result = []
            for nrec in range(len(recarray)):
                if recarray['var2'][nrec] < self.nrows and 0 < self.step:
                    result.append(recarray['var2'][nrec])
                elif recarray['var2'][nrec] > self.nrows and 0 > self.step:
                    result.append(recarray['var2'][nrec])
        elif self.checkgetCol:
            column = table.read(self.start, self.stop, self.step, 'var2')
            result = []
            for nrec in range(len(column)):
                if column[nrec] < self.nrows and 0 < self.step:
                    result.append(column[nrec])
                elif column[nrec] > self.nrows and 0 > self.step:
                    result.append(column[nrec])
        else:
            if 0 < self.step:
                result = [
                    rec['var2'] for rec in table.iterrows(self.start,
                                                          self.stop,
                                                          self.step)
                    if rec['var2'] < self.nrows
                ]
            elif 0 > self.step:
                result = [
                    rec['var2'] for rec in table.iterrows(self.start,
                                                          self.stop,
                                                          self.step)
                    if rec['var2'] > self.nrows
                ]

        if self.start < 0:
            startr = self.expectedrows + self.start
        else:
            startr = self.start

        if self.stop is None:
            if self.checkrecarray or self.checkgetCol:
                # data read using the read method
                stopr = startr + 1
            else:
                # data read using the iterrows method
                stopr = self.nrows
        elif self.stop < 0:
            stopr = self.expectedrows + self.stop
        else:
            stopr = self.stop

        if self.nrows < stopr:
            stopr = self.nrows

        if common.verbose:
            print("Nrows in", table._v_pathname, ":", table.nrows)
            if reslength:
                if self.checkrecarray:
                    print("Last record *read* in recarray ==>", recarray[-1])
                elif self.checkgetCol:
                    print("Last value *read* in getCol ==>", column[-1])
                else:
                    print("Last record *read* in table range ==>", rec)
            print("Total number of selected records ==>", len(result))
            print("Selected records:\n", result)
            print("Selected records should look like:\n",
                  list(range(startr, stopr, self.step)))
            print("start, stop, step ==>", self.start, self.stop, self.step)
            print("startr, stopr, step ==>", startr, stopr, self.step)

        self.assertEqual(result, list(range(startr, stopr, self.step)))
        if not (self.checkrecarray or self.checkgetCol):
            if startr < stopr and 0 < self.step:
                rec = [r for r in table.iterrows(self.start, self.stop,
                                                 self.step)
                       if r['var2'] < self.nrows][-1]
                if self.nrows < self.expectedrows:
                    self.assertEqual(
                        rec['var2'],
                        list(range(self.start, self.stop, self.step))[-1])
                else:
                    self.assertEqual(
                        rec['var2'],
                        list(range(startr, stopr, self.step))[-1])
            elif startr > stopr and 0 > self.step:
                rec = [r['var2'] for r in table.iterrows(self.start, self.stop,
                                                         self.step)
                       if r['var2'] > self.nrows][0]
                if self.nrows < self.expectedrows:
                    self.assertEqual(
                        rec,
                        list(range(self.start, self.stop or -1, self.step))[0])
                else:
                    self.assertEqual(
                        rec,
                        list(range(startr, stopr or -1, self.step))[0])

        # Close the file
        self.h5file.close()

    def test01_range(self):
        """Checking ranges in table iterators (case1)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01_range..." % self.__class__.__name__)

        # Case where step < nrowsinbuf < 2 * step
        self.nrows = 21
        self.nrowsinbuf = 3
        self.start = 0
        self.stop = self.expectedrows
        self.step = 2

        self.check_range()

    def test01a_range(self):
        """Checking ranges in table iterators (case1)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01a_range..." % self.__class__.__name__)

        # Case where step < nrowsinbuf < 2 * step
        self.nrows = 21
        self.nrowsinbuf = 3
        self.start = self.expectedrows - 1
        self.stop = None
        self.step = -2

        self.check_range()

    def test02_range(self):
        """Checking ranges in table iterators (case2)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test02_range..." % self.__class__.__name__)

        # Case where step < nrowsinbuf < 10 * step
        self.nrows = 21
        self.nrowsinbuf = 31
        self.start = 11
        self.stop = self.expectedrows
        self.step = 3

        self.check_range()

    def test03_range(self):
        """Checking ranges in table iterators (case3)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test03_range..." % self.__class__.__name__)

        # Case where step < nrowsinbuf < 1.1 * step
        self.nrows = self.expectedrows
        self.nrowsinbuf = 11  # Choose a small value for the buffer size
        self.start = 0
        self.stop = self.expectedrows
        self.step = 10

        self.check_range()

    def test04_range(self):
        """Checking ranges in table iterators (case4)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test04_range..." % self.__class__.__name__)

        # Case where step == nrowsinbuf
        self.nrows = self.expectedrows
        self.nrowsinbuf = 11  # Choose a small value for the buffer size
        self.start = 1
        self.stop = self.expectedrows
        self.step = 11

        self.check_range()

    def test05_range(self):
        """Checking ranges in table iterators (case5)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test05_range..." % self.__class__.__name__)

        # Case where step > 1.1 * nrowsinbuf
        self.nrows = 21
        self.nrowsinbuf = 10  # Choose a small value for the buffer size
        self.start = 1
        self.stop = self.expectedrows
        self.step = 11

        self.check_range()

    def test06_range(self):
        """Checking ranges in table iterators (case6)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test06_range..." % self.__class__.__name__)

        # Case where step > 3 * nrowsinbuf
        self.nrows = 3
        self.nrowsinbuf = 3  # Choose a small value for the buffer size
        self.start = 2
        self.stop = self.expectedrows
        self.step = 10

        self.check_range()

    def test07_range(self):
        """Checking ranges in table iterators (case7)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test07_range..." % self.__class__.__name__)

        # Case where start == stop
        self.nrows = 2
        self.nrowsinbuf = 3  # Choose a small value for the buffer size
        self.start = self.nrows
        self.stop = self.nrows
        self.step = 10

        self.check_range()

    def test08_range(self):
        """Checking ranges in table iterators (case8)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test08_range..." % self.__class__.__name__)

        # Case where start > stop
        self.nrows = 2
        self.nrowsinbuf = 3  # Choose a small value for the buffer size
        self.start = self.nrows + 1
        self.stop = self.nrows
        self.step = 1

        self.check_range()

    def test09_range(self):
        """Checking ranges in table iterators (case9)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test09_range..." % self.__class__.__name__)

        # Case where stop = None (last row)
        self.nrows = 100
        self.nrowsinbuf = 3  # Choose a small value for the buffer size
        self.start = 1
        self.stop = 2
        self.step = 1

        self.check_range()

    def test10_range(self):
        """Checking ranges in table iterators (case10)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test10_range..." % self.__class__.__name__)

        # Case where start < 0 and stop = None (last row)
        self.nrows = self.expectedrows
        self.nrowsinbuf = 5  # Choose a small value for the buffer size
        self.start = -6
        self.startr = self.expectedrows + self.start
        self.stop = -5
        self.stopr = self.expectedrows
        self.step = 2

        self.check_range()

    def test10a_range(self):
        """Checking ranges in table iterators (case10a)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test10a_range..." % self.__class__.__name__)

        # Case where start < 0 and stop = 0
        self.nrows = self.expectedrows
        self.nrowsinbuf = 5  # Choose a small value for the buffer size
        self.start = -6
        self.startr = self.expectedrows + self.start
        self.stop = 0
        self.stopr = self.expectedrows
        self.step = 2

        self.check_range()

    def test11_range(self):
        """Checking ranges in table iterators (case11)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test11_range..." % self.__class__.__name__)

        # Case where start < 0 and stop < 0
        self.nrows = self.expectedrows
        self.nrowsinbuf = 5  # Choose a small value for the buffer size
        self.start = -6
        self.startr = self.expectedrows + self.start
        self.stop = -2
        self.stopr = self.expectedrows + self.stop
        self.step = 1

        self.check_range()

    def test12_range(self):
        """Checking ranges in table iterators (case12)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test12_range..." % self.__class__.__name__)

        # Case where start < 0 and stop < 0 and start > stop
        self.nrows = self.expectedrows
        self.nrowsinbuf = 5  # Choose a small value for the buffer size
        self.start = -1
        self.startr = self.expectedrows + self.start
        self.stop = -2
        self.stopr = self.expectedrows + self.stop
        self.step = 1

        self.check_range()

    def test13_range(self):
        """Checking ranges in table iterators (case13)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test13_range..." % self.__class__.__name__)

        # Case where step < 0
        self.step = -11
        try:
            self.check_range()
        except ValueError:
            if common.verbose:
                (type, value, traceback) = sys.exc_info()
                print("\nGreat!, the next ValueError was catched!")
                print(value)
            self.h5file.close()
        #else:
        #    print rec
        #    self.fail("expected a ValueError")

        # Case where step == 0
        self.step = 0
        try:
            self.check_range()
        except ValueError:
            if common.verbose:
                (type, value, traceback) = sys.exc_info()
                print("\nGreat!, the next ValueError was catched!")
                print(value)
            self.h5file.close()
        #else:
        #    print rec
        #    self.fail("expected a ValueError")


class IterRangeTestCase(BasicRangeTestCase):
    pass


class RecArrayRangeTestCase(BasicRangeTestCase):
    checkrecarray = 1


class GetColRangeTestCase(BasicRangeTestCase):
    checkgetCol = 1

    def test01_nonexistentField(self):
        """Checking non-existing Field in getCol method """

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01_nonexistentField..." %
                  self.__class__.__name__)

        # Create an instance of an HDF5 Table
        self.h5file = tables.open_file(self.h5fname, "r")
        self.root = self.h5file.root
        table = self.h5file.get_node("/table0")

        with self.assertRaises(KeyError):
            # column = table.read(field='non-existent-column')
            table.col('non-existent-column')


class GetItemTestCase(common.TempFileMixin, TestCase):
    open_mode = "w"
    title = "This is the table title"
    record = Record
    maxshort = 1 << 15
    expectedrows = 100
    compress = 0
    shuffle = 1
    # Default values
    nrows = 20
    nrowsinbuf = 3  # Choose a small value for the buffer size
    start = 1
    stop = nrows
    checkrecarray = 0
    checkgetCol = 0

    def setUp(self):
        super(GetItemTestCase, self).setUp()

        # Create an instance of an HDF5 Table
        self.rootgroup = self.h5file.root
        self.populateFile()
        self.h5file.close()

    def populateFile(self):
        group = self.rootgroup
        for j in range(3):
            # Create a table
            filterprops = tables.Filters(complevel=self.compress,
                                         shuffle=self.shuffle)
            table = self.h5file.create_table(group, 'table'+str(j),
                                             self.record,
                                             title=self.title,
                                             filters=filterprops,
                                             expectedrows=self.expectedrows)
            # Get the row object associated with the new table
            row = table.row

            # Fill the table
            for i in range(self.expectedrows):
                row['var1'] = '%04d' % (self.expectedrows - i)
                row['var7'] = row['var1'][-1]
                row['var2'] = i
                row['var3'] = i % self.maxshort
                if isinstance(row['var4'], np.ndarray):
                    row['var4'] = [float(i), float(i * i)]
                else:
                    row['var4'] = float(i)
                if isinstance(row['var5'], np.ndarray):
                    row['var5'] = np.array((float(i),)*4)
                else:
                    row['var5'] = float(i)
                # var6 will be like var3 but byteswaped
                row['var6'] = ((row['var3'] >> 8) & 0xff) + \
                              ((row['var3'] << 8) & 0xff00)
                row.append()

            # Flush the buffer for this table
            table.flush()
            # Create a new group (descendant of group)
            group2 = self.h5file.create_group(group, 'group'+str(j))
            # Iterate over this new group (group2)
            group = group2

    def test01a_singleItem(self):
        """Checking __getitem__ method with single parameter (int)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01a_singleItem..." % self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        result = table[2]
        self.assertEqual(result["var2"], 2)
        result = table[25]
        self.assertEqual(result["var2"], 25)
        result = table[self.expectedrows-1]
        self.assertEqual(result["var2"], self.expectedrows - 1)

    def test01b_singleItem(self):
        """Checking __getitem__ method with single parameter (neg. int)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01b_singleItem..." % self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        result = table[-5]
        self.assertEqual(result["var2"], self.expectedrows - 5)
        result = table[-1]
        self.assertEqual(result["var2"], self.expectedrows - 1)
        result = table[-self.expectedrows]
        self.assertEqual(result["var2"], 0)

    def test01c_singleItem(self):
        """Checking __getitem__ method with single parameter (long)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01c_singleItem..." % self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        result = table[2]
        self.assertEqual(result["var2"], 2)
        result = table[25]
        self.assertEqual(result["var2"], 25)
        result = table[self.expectedrows-1]
        self.assertEqual(result["var2"], self.expectedrows - 1)

    def test01d_singleItem(self):
        """Checking __getitem__ method with single parameter (neg. long)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01d_singleItem..." % self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        result = table[-5]
        self.assertEqual(result["var2"], self.expectedrows - 5)
        result = table[-1]
        self.assertEqual(result["var2"], self.expectedrows - 1)
        result = table[-self.expectedrows]
        self.assertEqual(result["var2"], 0)

    def test01e_singleItem(self):
        """Checking __getitem__ method with single parameter (rank-0 ints)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01e_singleItem..." % self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        result = table[np.array(2)]
        self.assertEqual(result["var2"], 2)
        result = table[np.array(25)]
        self.assertEqual(result["var2"], 25)
        result = table[np.array(self.expectedrows-1)]
        self.assertEqual(result["var2"], self.expectedrows - 1)

    def test02_twoItems(self):
        """Checking __getitem__ method with start, stop parameters."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test02_twoItem..." % self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        result = table[2:6]
        self.assertEqual(result["var2"].tolist(), list(range(2, 6)))
        result = table[2:-6]
        self.assertEqual(result["var2"].tolist(), list(range(
            2, self.expectedrows-6)))
        result = table[2:]
        self.assertEqual(result["var2"].tolist(), list(range(2, self.expectedrows)))
        result = table[-2:]
        self.assertEqual(result["var2"].tolist(),
                         list(range(self.expectedrows-2, self.expectedrows)))

    def test03_threeItems(self):
        """Checking __getitem__ method with start, stop, step parameters."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test03_threeItem..." % self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        result = table[2:6:3]
        self.assertEqual(result["var2"].tolist(), list(range(2, 6, 3)))
        result = table[2::3]
        self.assertEqual(result["var2"].tolist(), list(range(
            2, self.expectedrows, 3)))
        result = table[:6:2]
        self.assertEqual(result["var2"].tolist(), list(range(0, 6, 2)))
        result = table[::]
        self.assertEqual(result["var2"].tolist(), list(range(
            0, self.expectedrows, 1)))

    def test04_negativeStep(self):
        """Checking __getitem__ method with negative step parameter."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test04_negativeStep..." %
                  self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        with self.assertRaises(ValueError):
            table[2:3:-3]

    def test06a_singleItemCol(self):
        """Checking __getitem__ method in Col with single parameter."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test06a_singleItemCol..." %
                  self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        colvar2 = table.cols.var2
        self.assertEqual(colvar2[2], 2)
        self.assertEqual(colvar2[25], 25)
        self.assertEqual(colvar2[self.expectedrows-1], self.expectedrows - 1)

    def test06b_singleItemCol(self):
        """Checking __getitem__ method in Col with single parameter
        (negative)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test06b_singleItem..." % self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        colvar2 = table.cols.var2
        self.assertEqual(colvar2[-5], self.expectedrows - 5)
        self.assertEqual(colvar2[-1], self.expectedrows - 1)
        self.assertEqual(colvar2[-self.expectedrows], 0)

    def test07_twoItemsCol(self):
        """Checking __getitem__ method in Col with start, stop parameters."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test07_twoItemCol..." % self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        colvar2 = table.cols.var2
        self.assertEqual(colvar2[2:6].tolist(), list(range(2, 6)))
        self.assertEqual(colvar2[2:-6].tolist(), list(range(2, self.expectedrows-6)))
        self.assertEqual(colvar2[2:].tolist(), list(range(2, self.expectedrows)))
        self.assertEqual(colvar2[-2:].tolist(),
                         list(range(self.expectedrows-2, self.expectedrows)))

    def test08_threeItemsCol(self):
        """Checking __getitem__ method in Col with start, stop, step
        parameters."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test08_threeItemCol..." %
                  self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        colvar2 = table.cols.var2
        self.assertEqual(colvar2[2:6:3].tolist(), list(range(2, 6, 3)))
        self.assertEqual(colvar2[2::3].tolist(), list(range(
            2, self.expectedrows, 3)))
        self.assertEqual(colvar2[:6:2].tolist(), list(range(0, 6, 2)))
        self.assertEqual(colvar2[::].tolist(), list(range(0, self.expectedrows, 1)))

    def test09_negativeStep(self):
        """Checking __getitem__ method in Col with negative step parameter."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test09_negativeStep..." %
                  self.__class__.__name__)

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        colvar2 = table.cols.var2
        with self.assertRaises(ValueError):
            colvar2[2:3:-3]

    def test10_list_integers(self):
        """Checking accessing Table with a list of integers."""

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        idx = list(range(10, 70, 11))

        result = table[idx]
        self.assertEqual(result["var2"].tolist(), idx)

        result = table.read_coordinates(idx)
        self.assertEqual(result["var2"].tolist(), idx)

    def test11_list_booleans(self):
        """Checking accessing Table with a list of boolean values."""

        self.h5file = tables.open_file(self.h5fname, "r")
        table = self.h5file.root.table0
        idx = list(range(10, 70, 11))

        selection = [n in idx for n in range(self.expectedrows)]

        result = table[selection]
        self.assertEqual(result["var2"].tolist(), idx)

        result = table.read_coordinates(selection)
        self.assertEqual(result["var2"].tolist(), idx)


class Rec(tables.IsDescription):
    col1 = IntCol(pos=1)
    col2 = StringCol(itemsize=3, pos=2)
    col3 = FloatCol(pos=3)


class SetItemTestCase(common.TempFileMixin, TestCase):
    def test01(self):
        """Checking modifying one table row with __setitem__"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing row
        table[2] = (456, 'db2', 1.2)
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [456, b'db2', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test01b(self):
        """Checking modifying one table row with __setitem__ (long index)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing row
        table[2] = (456, 'db2', 1.2)
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [456, b'db2', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test02(self):
        """Modifying one row, with a step (__setitem__)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify two existing rows
        rows = records.array([[457, b'db1', 1.2]], formats="i4,a3,f8")
        table[1:3:2] = rows
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [457, b'db1', 1.2],
                            [457, b'db1', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test03(self):
        """Checking modifying several rows at once (__setitem__)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify two existing rows
        rows = records.array([[457, b'db1', 1.2], [5, b'de1', 1.3]],
                             formats="i4,a3,f8")
        # table.modify_rows(start=1, rows=rows)
        table[1:3] = rows
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [457, b'db1', 1.2],
                            [5, b'de1', 1.3], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test04(self):
        """Modifying several rows at once, with a step (__setitem__)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify two existing rows
        rows = records.array([[457, b'db1', 1.2], [6, b'de2', 1.3]],
                             formats="i4,a3,f8")
        # table[1:4:2] = rows
        table[1::2] = rows
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [457, b'db1', 1.2],
                            [457, b'db1', 1.2], [6, b'de2', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test05(self):
        """Checking modifying one column (single element, __setitem__)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3]],
                          formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing column
        table.cols.col1[1] = -1
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [-1, b'ded', 1.3],
                            [457, b'db1', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test06a(self):
        """Checking modifying one column (several elements, __setitem__)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing column
        table.cols.col1[1:4] = [2, 3, 4]
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [3, b'db1', 1.2], [4, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test06b(self):
        """Checking modifying one column (iterator, __setitem__)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing column
        with self.assertRaises(NotImplementedError):
            for row in table.iterrows():
                row['col1'] = row.nrow + 1
                row.append()
            table.flush()

#         # Create the modified recarray
#         r1=records.array([[1,b'dbe',1.2],[2,b'ded',1.3],
#                           [3,b'db1',1.2],[4,b'de1',1.3]],
#                          formats="i4,a3,f8",
#                          names = "col1,col2,col3")
#         # Read the modified table
#         if self.reopen:
#             self.fileh.close()
#             self.fileh = tables.open_file(self.file, "r")
#             table = self.fileh.root.recarray
#             table.nrowsinbuf = self.buffersize  # set buffer value
#         r2 = table.read()
#         if common.verbose:
#             print "Original table-->", repr(r2)
#             print "Should look like-->", repr(r1)
#         self.assertEqual(r1.tostring(), r2.tostring())
#         self.assertEqual(table.nrows, 4)

    def test07(self):
        """Modifying one column (several elements, __setitem__, step)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          1, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])
        # Modify just one existing column
        table.cols.col1[1:4:2] = [2, 3]
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [457, b'db1', 1.2], [3, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test08(self):
        """Modifying one column (one element, __setitem__, step)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing column
        table.cols.col1[1:4:3] = [2]
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [457, b'db1', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test09(self):
        """Modifying beyond the table extend (__setitem__, step)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Try to modify beyond the extend
        # This will silently exclude the non-fitting rows
        rows = records.array([[457, b'db1', 1.2], [6, b'de2', 1.3]],
                             formats="i4,a3,f8")
        table[1::2] = rows
        # How it should look like
        r1 = records.array([[456, b'dbe', 1.2], [457, b'db1', 1.2],
                            [457, b'db1', 1.2], [6, b'de2', 1.3]],
                           formats="i4,a3,f8")

        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)


class SetItemTestCase1(SetItemTestCase):
    reopen = 0
    buffersize = 1


class SetItemTestCase2(SetItemTestCase):
    reopen = 1
    buffersize = 2


class SetItemTestCase3(SetItemTestCase):
    reopen = 0
    buffersize = 1000


class SetItemTestCase4(SetItemTestCase):
    reopen = 1
    buffersize = 1000


class UpdateRowTestCase(common.TempFileMixin, TestCase):
    def test01(self):
        """Checking modifying one table row with Row.update"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing row
        for row in table.iterrows(2, 3):
            (row['col1'], row['col2'], row['col3']) = [456, 'db2', 1.2]
            row.update()
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [456, b'db2', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test02(self):
        """Modifying one row, with a step (Row.update)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify two existing rows
        for row in table.iterrows(1, 3, 2):
            if row.nrow == 1:
                (row['col1'], row['col2'], row['col3']) = [457, 'db1', 1.2]
            elif row.nrow == 3:
                (row['col1'], row['col2'], row['col3']) = [6, 'de2', 1.3]
            row.update()
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [457, b'db1', 1.2],
                            [457, b'db1', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test03(self):
        """Checking modifying several rows at once (Row.update)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify two existing rows
        for row in table.iterrows(1, 3):
            if row.nrow == 1:
                (row['col1'], row['col2'], row['col3']) = [457, 'db1', 1.2]
            elif row.nrow == 2:
                (row['col1'], row['col2'], row['col3']) = [5, 'de1', 1.3]
            row.update()
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [457, b'db1', 1.2],
                            [5, b'de1', 1.3], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test04(self):
        """Modifying several rows at once, with a step (Row.update)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify two existing rows
        for row in table.iterrows(1, stop=4, step=2):
            if row.nrow == 1:
                (row['col1'], row['col2'], row['col3']) = [457, 'db1', 1.2]
            elif row.nrow == 3:
                (row['col1'], row['col2'], row['col3']) = [6, 'de2', 1.3]
            row.update()
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [457, b'db1', 1.2],
                            [457, b'db1', 1.2], [6, b'de2', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test05(self):
        """Checking modifying one column (single element, Row.update)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3]],
                          formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing column
        for row in table.iterrows(1, 2):
            row['col1'] = -1
            row.update()
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [-1, b'ded', 1.3],
                            [457, b'db1', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test06(self):
        """Checking modifying one column (several elements, Row.update)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing column
        for row in table.iterrows(1, 4):
            row['col1'] = row.nrow + 1
            row.update()
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [3, b'db1', 1.2], [4, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test07(self):
        """Modifying values from a selection"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          1, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])
        # Modify just rows with col1 < 456
        for row in table.where('col1 < 456'):
            row['col1'] = 2
            row['col2'] = 'ada'
            row.update()
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ada', 1.3],
                            [457, b'db1', 1.2], [2, b'ada', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test08(self):
        """Modifying a large table (Row.update)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        nrows = 100
        # append new rows
        row = table.row
        for i in range(nrows):
            row['col1'] = i-1
            row['col2'] = 'a'+str(i-1)
            row['col3'] = -1.0
            row.append()
        table.flush()

        # Modify all the rows
        for row in table:
            row['col1'] = row.nrow
            row['col2'] = 'b'+str(row.nrow)
            row['col3'] = 0.0
            row.update()

        # Create the modified recarray
        r1 = records.array(None, shape=nrows,
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        for i in range(nrows):
            r1['col1'][i] = i
            r1['col2'][i] = 'b'+str(i)
            r1['col3'][i] = 0.0
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, nrows)

    def test08b(self):
        """Setting values on a large table without calling Row.update"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        nrows = 100
        # append new rows
        row = table.row
        for i in range(nrows):
            row['col1'] = i-1
            row['col2'] = 'a'+str(i-1)
            row['col3'] = -1.0
            row.append()
        table.flush()

        # Modify all the rows (actually don't)
        for row in table:
            row['col1'] = row.nrow
            row['col2'] = 'b'+str(row.nrow)
            row['col3'] = 0.0
            # row.update()

        # Create the modified recarray
        r1 = records.array(None, shape=nrows,
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        for i in range(nrows):
            r1['col1'][i] = i-1
            r1['col2'][i] = 'a'+str(i-1)
            r1['col3'][i] = -1.0
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, nrows)

    def test09(self):
        """Modifying selected values on a large table"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        nrows = 100
        # append new rows
        row = table.row
        for i in range(nrows):
            row['col1'] = i-1
            row['col2'] = 'a'+str(i-1)
            row['col3'] = -1.0
            row.append()
        table.flush()

        # Modify selected rows
        for row in table.where('col1 > nrows-3'):
            row['col1'] = row.nrow
            row['col2'] = 'b'+str(row.nrow)
            row['col3'] = 0.0
            row.update()

        # Create the modified recarray
        r1 = records.array(None, shape=nrows,
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        for i in range(nrows):
            r1['col1'][i] = i-1
            r1['col2'][i] = 'a'+str(i-1)
            r1['col3'][i] = -1.0
        # modify just the last line
        r1['col1'][i] = i
        r1['col2'][i] = 'b'+str(i)
        r1['col3'][i] = 0.0

        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, nrows)

    def test09b(self):
        """Modifying selected values on a large table (alternate values)"""

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)
        table.nrowsinbuf = self.buffersize  # set buffer value

        nrows = 100
        # append new rows
        row = table.row
        for i in range(nrows):
            row['col1'] = i-1
            row['col2'] = 'a'+str(i-1)
            row['col3'] = -1.0
            row.append()
        table.flush()

        # Modify selected rows
        for row in table.iterrows(step=10):
            row['col1'] = row.nrow
            row['col2'] = 'b'+str(row.nrow)
            row['col3'] = 0.0
            row.update()

        # Create the modified recarray
        r1 = records.array(None, shape=nrows,
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        for i in range(nrows):
            if i % 10 > 0:
                r1['col1'][i] = i-1
                r1['col2'][i] = 'a'+str(i-1)
                r1['col3'][i] = -1.0
            else:
                r1['col1'][i] = i
                r1['col2'][i] = 'b'+str(i)
                r1['col3'][i] = 0.0

        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
            table.nrowsinbuf = self.buffersize  # set buffer value
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, nrows)


class UpdateRowTestCase1(UpdateRowTestCase):
    reopen = 0
    buffersize = 1


class UpdateRowTestCase2(UpdateRowTestCase):
    reopen = 1
    buffersize = 2


class UpdateRowTestCase3(UpdateRowTestCase):
    reopen = 0
    buffersize = 1000


class UpdateRowTestCase4(UpdateRowTestCase):
    reopen = 1
    buffersize = 1000


class RecArrayIO(common.TempFileMixin, TestCase):
    def test00(self):
        """Checking saving a regular recarray"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test00..." % self.__class__.__name__)

        # Create a recarray
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'de', 1.3]], names='col1,col2,col3')

        # Save it in a table:
        self.h5file.create_table(self.h5file.root, 'recarray', r)

        # Read it again
        if self.reopen:
            self._reopen()
        r2 = self.h5file.root.recarray.read()
        self.assertEqual(r.tostring(), r2.tostring())

    def test01(self):
        """Checking saving a recarray with an offset in its buffer"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01..." % self.__class__.__name__)

        # Create a recarray
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'de', 1.3]], names='col1,col2,col3')

        # Get an offsetted bytearray
        r1 = r[1:]

        # Save it in a table:
        self.h5file.create_table(self.h5file.root, 'recarray', r1)

        # Read it again
        if self.reopen:
            self._reopen()
        r2 = self.h5file.root.recarray.read()

        self.assertEqual(r1.tostring(), r2.tostring())

    def test02(self):
        "Checking saving a large recarray with an offset in its buffer"

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test02..." % self.__class__.__name__)

        # Create a recarray
        r = records.array(b'a'*200000, 'f4,3i4,a5,i2', 3000)

        # Get an offsetted bytearray
        r1 = r[2000:]

        # Save it in a table:
        self.h5file.create_table(self.h5file.root, 'recarray', r1)

        # Read it again
        if self.reopen:
            self._reopen()
        r2 = self.h5file.root.recarray.read()

        self.assertEqual(r1.tostring(), r2.tostring())

    def test03(self):
        """Checking saving a strided recarray with an offset in its buffer"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test03..." % self.__class__.__name__)

        # Create a recarray
        r = records.array(b'a'*200000, 'f4,3i4,a5,i2', 3000)

        # Get an strided recarray
        r2 = r[::2]

        # Get an offsetted bytearray
        r1 = r2[1200:]

        # Save it in a table:
        self.h5file.create_table(self.h5file.root, 'recarray', r1)

        # Read it again
        if self.reopen:
            self._reopen()
        r2 = self.h5file.root.recarray.read()

        self.assertEqual(r1.tostring(), r2.tostring())

    def test04(self):
        """Checking appending several rows at once"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test04..." % self.__class__.__name__)

        class Rec(tables.IsDescription):
            col1 = IntCol(pos=1)
            col2 = StringCol(itemsize=3, pos=2)
            col3 = FloatCol(pos=3)

        # Save it in a table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])
        # Create the complete table
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [457, b'db1', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the original table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = self.h5file.root.recarray.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test05(self):
        """Checking appending several rows at once (close file version)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test05..." % self.__class__.__name__)

        # Save it in a table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        self._reopen()

        table = self.h5file.root.recarray
        # Create the complete table
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [457, b'db1', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")

        # Read the original table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = self.h5file.root.recarray.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test06a(self):
        """Checking modifying one table row (list version)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test06a..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([(456, b'dbe', 1.2), (
            2, b'ded', 1.3)], formats="i4,a3,f8")
        table.append(r)
        table.append([(457, b'db1', 1.2), (5, b'de1', 1.3)])
        # Modify just one existing rows
        table.modify_rows(start=1, rows=[(456, 'db1', 1.2)])
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [456, b'db1', 1.2],
                            [457, b'db1', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")

        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test06b(self):
        """Checking modifying one table row (recarray version)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test06b..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])
        # Modify just one existing rows
        table.modify_rows(start=2, rows=records.array([[456, 'db2', 1.2]],
                                                      formats="i4,a3,f8"))
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [456, b'db2', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test07a(self):
        """Checking modifying several rows at once (list version)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test07a..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])
        # Modify two existing rows
        table.modify_rows(start=1, rows=[(457, 'db1', 1.2), (5, 'de1', 1.3)])
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [457, b'db1', 1.2],
                            [5, b'de1', 1.3], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test07b(self):
        """Checking modifying several rows at once (recarray version)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test07b..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])
        # Modify two existing rows
        rows = records.array([[457, b'db1', 1.2], [5, b'de1', 1.3]],
                             formats="i4,a3,f8")
        table.modify_rows(start=1, rows=rows)
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [457, b'db1', 1.2],
                            [5, b'de1', 1.3], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test07c(self):
        """Checking modifying several rows with a mismatching value"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test07c..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])
        # Modify two existing rows
        rows = records.array([[457, b'db1', 1.2], [5, b'de1', 1.3]],
                             formats="i4,a3,f8")
        self.assertRaises(ValueError, table.modify_rows,
                          start=1, stop=2, rows=rows)

    def test08a(self):
        """Checking modifying one column (single column version)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test08a..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing column
        table.modify_columns(start=1, columns=[[2, 3, 4]], names=["col1"])
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [3, b'db1', 1.2], [4, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test08a2(self):
        """Checking modifying one column (single column version,
         modify_column)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test08a2..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing column
        table.modify_column(start=1, column=[2, 3, 4], colname="col1")
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [3, b'db1', 1.2], [4, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test08b(self):
        """Checking modifying one column (single column version, recarray)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test08b..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing column
        columns = records.fromarrays(np.array([[2, 3, 4]]), formats="i4")
        table.modify_columns(start=1, columns=columns, names=["col1"])
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [3, b'db1', 1.2], [4, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test08b2(self):
        """Checking modifying one column (single column version, recarray,
        modify_column)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test08b2..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing column
        columns = records.fromarrays(np.array([[2, 3, 4]]), formats="i4")
        table.modify_column(start=1, column=columns, colname="col1")
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'ded', 1.3],
                            [3, b'db1', 1.2], [4, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test08c(self):
        """Checking modifying one column (single column version,
        single element)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test08c..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify just one existing column
        # columns = records.fromarrays(np.array([[4]]), formats="i4")
        # table.modify_columns(start=1, columns=columns, names=["col1"])
        table.modify_columns(start=1, columns=[[4]], names=["col1"])
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [4, b'ded', 1.3],
                            [457, b'db1', 1.2], [5, b'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test09a(self):
        """Checking modifying table columns (multiple column version)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test09a..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify a couple of columns
        columns = [["aaa", "bbb", "ccc"], [1.2, .1, .3]]
        table.modify_columns(start=1, columns=columns, names=["col2", "col3"])
        # Create the modified recarray
        r1 = records.array([[456, b'dbe', 1.2], [2, b'aaa', 1.2],
                            [457, b'bbb', .1], [5, b'ccc', .3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")

        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test09b(self):
        """Checking modifying table columns (multiple columns, recarray)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test09b..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify a couple of columns
        columns = records.array([["aaa", 1.2], ["bbb", .1], ["ccc", .3]],
                                formats="a3,f8")
        table.modify_columns(start=1, columns=columns, names=["col2", "col3"])
        # Create the modified recarray
        r1 = records.array([[456, 'dbe', 1.2], [2, 'aaa', 1.2],
                            [457, 'bbb', .1], [5, 'ccc', .3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test09c(self):
        """Checking modifying table columns (single column, step)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test09c..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])
        # Modify a couple of columns
        columns = records.array([["aaa", 1.2], ["bbb", .1]],
                                formats="a3,f8")
        table.modify_columns(start=1, step=2, columns=columns,
                             names=["col2", "col3"])
        # Create the modified recarray
        r1 = records.array([[456, 'dbe', 1.2], [2, 'aaa', 1.2],
                            [457, 'db1', 1.2], [5, 'bbb', .1]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test09d(self):
        """Checking modifying table columns (multiple columns, step)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test09d..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        # Modify a couple of columns
        columns = records.array([["aaa", 1.3], ["bbb", .1]],
                                formats="a3,f8")
        table.modify_columns(start=0, step=2, columns=columns,
                             names=["col2", "col3"])
        # Create the modified recarray
        r1 = records.array([[456, 'aaa', 1.3], [2, 'ded', 1.3],
                            [457, 'bbb', .1], [5, 'de1', 1.3]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test10a(self):
        """Checking modifying rows using coordinates
         (readCoords/modifyCoords)."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test10a..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        columns = table.read_coordinates([0, 3])

        # Modify both rows
        columns['col1'][:] = [55, 56]
        columns['col3'][:] = [1.9, 1.8]

        # Modify the table in the same coordinates
        table.modify_coordinates([0, 3], columns)

        # Create the modified recarray
        r1 = records.array([[55, b'dbe', 1.9], [2, b'ded', 1.3],
                            [457, b'db1', 1.2], [56, b'de1', 1.8]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)

    def test10b(self):
        """Checking modifying rows using coordinates (getitem/setitem)."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test10b..." % self.__class__.__name__)

        # Create a new table:
        table = self.h5file.create_table(self.h5file.root, 'recarray', Rec)

        # append new rows
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'ded', 1.3]], formats="i4,a3,f8")
        table.append(r)
        table.append([[457, b'db1', 1.2], [5, b'de1', 1.3]])

        columns = table[[0, 3]]

        # Modify both rows
        columns['col1'][:] = [55, 56]
        columns['col3'][:] = [1.9, 1.8]

        # Modify the table in the same coordinates
        table[[0, 3]] = columns

        # Create the modified recarray
        r1 = records.array([[55, b'dbe', 1.9], [2, b'ded', 1.3],
                            [457, b'db1', 1.2], [56, b'de1', 1.8]],
                           formats="i4,a3,f8",
                           names="col1,col2,col3")
        # Read the modified table
        if self.reopen:
            self._reopen()
            table = self.h5file.root.recarray
        r2 = table.read()
        if common.verbose:
            print("Original table-->", repr(r2))
            print("Should look like-->", repr(r1))
        self.assertEqual(r1.tostring(), r2.tostring())
        self.assertEqual(table.nrows, 4)


class RecArrayIO1(RecArrayIO):
    reopen = 0


class RecArrayIO2(RecArrayIO):
    reopen = 1


class CopyTestCase(common.TempFileMixin, TestCase):
    def assertEqualColinstances(self, table1, table2):
        """Assert that column instance maps of both tables are equal."""

        cinst1, cinst2 = table1.colinstances, table2.colinstances
        self.assertEqual(len(cinst1), len(cinst2))
        for (cpathname, col1) in cinst1.items():
            self.assertTrue(cpathname in cinst2)
            col2 = cinst2[cpathname]
            self.assertTrue(isinstance(col1, type(col2)))
            if isinstance(col1, Column):
                self.assertEqual(col1.name, col2.name)
                self.assertEqual(col1.pathname, col2.pathname)
                self.assertEqual(col1.dtype, col2.dtype)
                self.assertEqual(col1.type, col2.type)
            elif isinstance(col1, Cols):
                self.assertEqual(col1._v_colnames, col2._v_colnames)
                self.assertEqual(col1._v_colpathnames, col2._v_colpathnames)

    def test01_copy(self):
        """Checking Table.copy() method."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01_copy..." % self.__class__.__name__)

        # Create a recarray
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'de', 1.3]], names='col1,col2,col3')
        # Save it in a table:
        table1 = self.h5file.create_table(self.h5file.root, 'table1', r,
                                          "title table1")

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='a')
            table1 = self.h5file.root.table1

        # Copy to another table
        table2 = table1.copy('/', 'table2')

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='a')
            table1 = self.h5file.root.table1
            table2 = self.h5file.root.table2

        if common.verbose:
            print("table1-->", table1.read())
            print("table2-->", table2.read())
            # print "dirs-->", dir(table1), dir(table2)
            print("attrs table1-->", repr(table1.attrs))
            print("attrs table2-->", repr(table2.attrs))

        # Check that all the elements are equal
        for row1 in table1:
            nrow = row1.nrow   # current row
            # row1 is a Row instance, while table2[] is a
            # RecArray.Record instance
            # print "reprs-->", repr(row1), repr(table2.read(nrow))
            for colname in table1.colnames:
                # Both ways to compare works well
                # self.assertEqual(row1[colname], table2[nrow][colname))
                self.assertEqual(row1[colname],
                                 table2.read(nrow, field=colname)[0])

        # Assert other properties in table
        self.assertEqual(table1.nrows, table2.nrows)
        self.assertEqual(table1.shape, table2.shape)
        self.assertEqual(table1.colnames, table2.colnames)
        self.assertEqual(table1.coldtypes, table2.coldtypes)
        self.assertEqualColinstances(table1, table2)
        self.assertEqual(repr(table1.description), repr(table2.description))

        # This could be not the same when re-opening the file
        # self.assertEqual(table1.description._v_ColObjects,
        #                  table2.description._v_ColObjects)
        # Leaf attributes
        self.assertEqual(table1.title, table2.title)
        self.assertEqual(table1.filters.complevel, table2.filters.complevel)
        self.assertEqual(table1.filters.complib, table2.filters.complib)
        self.assertEqual(table1.filters.shuffle, table2.filters.shuffle)
        self.assertEqual(table1.filters.fletcher32, table2.filters.fletcher32)

    def test02_copy(self):
        """Checking Table.copy() method (where specified)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test02_copy..." % self.__class__.__name__)

        # Create a recarray
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'de', 1.3]], names='col1,col2,col3')
        # Save it in a table:
        table1 = self.h5file.create_table(self.h5file.root, 'table1', r,
                                          "title table1")

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='a')
            table1 = self.h5file.root.table1

        # Copy to another table in another group
        group1 = self.h5file.create_group("/", "group1")
        table2 = table1.copy(group1, 'table2')

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen()
            table1 = self.h5file.root.table1
            table2 = self.h5file.root.group1.table2

        if common.verbose:
            print("table1-->", table1.read())
            print("table2-->", table2.read())
            print("attrs table1-->", repr(table1.attrs))
            print("attrs table2-->", repr(table2.attrs))

        # Check that all the elements are equal
        for row1 in table1:
            nrow = row1.nrow   # current row
            for colname in table1.colnames:
                # Both ways to compare works well
                # self.assertEqual(row1[colname], table2[nrow][colname))
                self.assertEqual(row1[colname],
                                 table2.read(nrow, field=colname)[0])

        # Assert other properties in table
        self.assertEqual(table1.nrows, table2.nrows)
        self.assertEqual(table1.shape, table2.shape)
        self.assertEqual(table1.colnames, table2.colnames)
        self.assertEqual(table1.coldtypes, table2.coldtypes)
        self.assertEqualColinstances(table1, table2)
        self.assertEqual(repr(table1.description), repr(table2.description))

        # Leaf attributes
        self.assertEqual(table1.title, table2.title)
        self.assertEqual(table1.filters.complevel, table2.filters.complevel)
        self.assertEqual(table1.filters.complib, table2.filters.complib)
        self.assertEqual(table1.filters.shuffle, table2.filters.shuffle)
        self.assertEqual(table1.filters.fletcher32, table2.filters.fletcher32)

    def test03_copy(self):
        """Checking Table.copy() method (table larger than buffer)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test03_copy..." % self.__class__.__name__)

        # Create a recarray exceeding buffers capability
        # This works, but takes too much CPU for a test
        # It is better to reduce the buffer size (table1.nrowsinbuf)
#         r=records.array(b'aaaabbbbccccddddeeeeffffgggg'*20000,
#                         formats='2i2,i4, (2,3)u2, (1,)f4, f8',shape=700)
        r = records.array(b'aaaabbbbccccddddeeeeffffgggg' * 200,
                          formats='2i2,i4, (2,3)u2, (1,)f4, f8', shape=7)
        # Save it in a table:
        table1 = self.h5file.create_table(self.h5file.root, 'table1', r,
                                          "title table1")

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='a')
            table1 = self.h5file.root.table1

        # Copy to another table in another group and other title
        group1 = self.h5file.create_group("/", "group1")
        table1.nrowsinbuf = 2  # small value of buffer
        table2 = table1.copy(group1, 'table2', title="title table2")
        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen()
            table1 = self.h5file.root.table1
            table2 = self.h5file.root.group1.table2

        if common.verbose:
            print("table1-->", table1.read())
            print("table2-->", table2.read())
            print("attrs table1-->", repr(table1.attrs))
            print("attrs table2-->", repr(table2.attrs))

        # Check that all the elements are equal
        for row1 in table1:
            nrow = row1.nrow   # current row
            for colname in table1.colnames:
                # self.assertTrue(allequal(row1[colname],
                # table2[nrow][colname]))
                self.assertTrue(allequal(row1[colname],
                                         table2.read(nrow, field=colname)[0]))

        # Assert other properties in table
        self.assertEqual(table1.nrows, table2.nrows)
        self.assertEqual(table1.shape, table2.shape)
        self.assertEqual(table1.colnames, table2.colnames)
        self.assertEqual(table1.coldtypes, table2.coldtypes)
        self.assertEqualColinstances(table1, table2)
        self.assertEqual(repr(table1.description), repr(table2.description))

        # Leaf attributes
        self.assertEqual("title table2", table2.title)
        self.assertEqual(table1.filters.complevel, table2.filters.complevel)
        self.assertEqual(table1.filters.complib, table2.filters.complib)
        self.assertEqual(table1.filters.shuffle, table2.filters.shuffle)
        self.assertEqual(table1.filters.fletcher32, table2.filters.fletcher32)

    def test04_copy(self):
        """Checking Table.copy() method (different compress level)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test04_copy..." % self.__class__.__name__)

        # Create a recarray
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'de', 1.3]], names='col1,col2,col3')
        # Save it in a table:
        table1 = self.h5file.create_table(self.h5file.root, 'table1', r,
                                          "title table1")

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='a')
            table1 = self.h5file.root.table1

        # Copy to another table in another group
        group1 = self.h5file.create_group("/", "group1")
        table2 = table1.copy(group1, 'table2',
                             filters=tables.Filters(complevel=6))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen()
            table1 = self.h5file.root.table1
            table2 = self.h5file.root.group1.table2

        if common.verbose:
            print("table1-->", table1.read())
            print("table2-->", table2.read())
            print("attrs table1-->", repr(table1.attrs))
            print("attrs table2-->", repr(table2.attrs))

        # Check that all the elements are equal
        for row1 in table1:
            nrow = row1.nrow   # current row
            for colname in table1.colnames:
                # Both ways to compare works well
                # self.assertEqual(row1[colname], table2[nrow][colname))
                self.assertEqual(row1[colname],
                                 table2.read(nrow, field=colname)[0])

        # Assert other properties in table
        self.assertEqual(table1.nrows, table2.nrows)
        self.assertEqual(table1.shape, table2.shape)
        self.assertEqual(table1.colnames, table2.colnames)
        self.assertEqual(table1.coldtypes, table2.coldtypes)
        self.assertEqualColinstances(table1, table2)
        self.assertEqual(repr(table1.description), repr(table2.description))

        # Leaf attributes
        self.assertEqual(table1.title, table2.title)
        self.assertEqual(6, table2.filters.complevel)
        self.assertEqual(1, table2.filters.shuffle)
        self.assertEqual(table1.filters.fletcher32, table2.filters.fletcher32)

    def test05_copy(self):
        """Checking Table.copy() method (user attributes copied)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test05_copy..." % self.__class__.__name__)

        # Create a recarray
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'de', 1.3]], names='col1,col2,col3')
        # Save it in a table:
        table1 = self.h5file.create_table(self.h5file.root, 'table1', r,
                                          "title table1")
        # Add some user attributes
        table1.attrs.attr1 = "attr1"
        table1.attrs.attr2 = 2

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='a')
            table1 = self.h5file.root.table1

        # Copy to another table in another group
        group1 = self.h5file.create_group("/", "group1")
        table2 = table1.copy(group1, 'table2',
                             copyuserattrs=1,
                             filters=tables.Filters(complevel=6))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen()
            table1 = self.h5file.root.table1
            table2 = self.h5file.root.group1.table2

        if common.verbose:
            print("table1-->", table1.read())
            print("table2-->", table2.read())
            print("attrs table1-->", repr(table1.attrs))
            print("attrs table2-->", repr(table2.attrs))

        # Check that all the elements are equal
        for row1 in table1:
            nrow = row1.nrow   # current row
            for colname in table1.colnames:
                # self.assertEqual(row1[colname], table2[nrow][colname))
                self.assertEqual(row1[colname],
                                 table2.read(nrow, field=colname)[0])

        # Assert other properties in table
        self.assertEqual(table1.nrows, table2.nrows)
        self.assertEqual(table1.shape, table2.shape)
        self.assertEqual(table1.colnames, table2.colnames)
        self.assertEqual(table1.coldtypes, table2.coldtypes)
        self.assertEqualColinstances(table1, table2)
        self.assertEqual(repr(table1.description), repr(table2.description))

        # Leaf attributes
        self.assertEqual(table1.title, table2.title)
        self.assertEqual(6, table2.filters.complevel)
        self.assertEqual(1, table2.filters.shuffle)
        self.assertEqual(table1.filters.fletcher32, table2.filters.fletcher32)
        # User attributes
        self.assertEqual(table2.attrs.attr1, "attr1")
        self.assertEqual(table2.attrs.attr2, 2)

    def test05b_copy(self):
        """Checking Table.copy() method (user attributes not copied)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test05b_copy..." % self.__class__.__name__)

        # Create a recarray
        r = records.array([[456, b'dbe', 1.2], [
                          2, b'de', 1.3]], names='col1,col2,col3')
        # Save it in a table:
        table1 = self.h5file.create_table(self.h5file.root, 'table1', r,
                                          "title table1")

        # Add some user attributes
        table1.attrs.attr1 = "attr1"
        table1.attrs.attr2 = 2

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='a')
            table1 = self.h5file.root.table1

        # Copy to another table in another group
        group1 = self.h5file.create_group("/", "group1")
        table2 = table1.copy(group1, 'table2',
                             copyuserattrs=0,
                             filters=tables.Filters(complevel=6))

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen()
            table1 = self.h5file.root.table1
            table2 = self.h5file.root.group1.table2

        if common.verbose:
            print("table1-->", table1.read())
            print("table2-->", table2.read())
            print("attrs table1-->", repr(table1.attrs))
            print("attrs table2-->", repr(table2.attrs))

        # Check that all the elements are equal
        for row1 in table1:
            nrow = row1.nrow   # current row
            for colname in table1.colnames:
                # self.assertEqual(row1[colname], table2[nrow][colname))
                self.assertEqual(row1[colname],
                                 table2.read(nrow, field=colname)[0])

        # Assert other properties in table
        self.assertEqual(table1.nrows, table2.nrows)
        self.assertEqual(table1.shape, table2.shape)
        self.assertEqual(table1.colnames, table2.colnames)
        self.assertEqual(table1.coldtypes, table2.coldtypes)
        self.assertEqualColinstances(table1, table2)
        self.assertEqual(repr(table1.description), repr(table2.description))

        # Leaf attributes
        self.assertEqual(table1.title, table2.title)
        self.assertEqual(6, table2.filters.complevel)
        self.assertEqual(1, table2.filters.shuffle)
        self.assertEqual(table1.filters.fletcher32, table2.filters.fletcher32)
        # User attributes
#       self.assertEqual(table2.attrs.attr1, None)
#       self.assertEqual(table2.attrs.attr2, None)
        self.assertEqual(hasattr(table2.attrs, "attr1"), 0)
        self.assertEqual(hasattr(table2.attrs, "attr2"), 0)


class CloseCopyTestCase(CopyTestCase):
    close = 1


class OpenCopyTestCase(CopyTestCase):
    close = 0


class CopyIndexTestCase(common.TempFileMixin, TestCase):
    def test01_index(self):
        """Checking Table.copy() method with indexes."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01_index..." % self.__class__.__name__)

        # Create a recarray exceeding buffers capability
        r = records.array(b'aaaabbbbccccddddeeeeffffgggg' * 200,
                          formats='2i2, (1,)i4, (2,3)u2, (1,)f4, (1,)f8',
                          shape=10)
                          # The line below exposes a bug in numpy
                          # formats='2i2, i4, (2,3)u2, f4, f8',shape=10)
        # Save it in a table:
        table1 = self.h5file.create_table(self.h5file.root, 'table1', r,
                                          "title table1")

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='a')
            table1 = self.h5file.root.table1

        # Copy to another table
        table1.nrowsinbuf = self.nrowsinbuf
        table2 = table1.copy("/", 'table2',
                             start=self.start,
                             stop=self.stop,
                             step=self.step)
        if common.verbose:
            print("table1-->", table1.read())
            print("table2-->", table2.read())
            print("attrs table1-->", repr(table1.attrs))
            print("attrs table2-->", repr(table2.attrs))

        # Check that all the elements are equal
        r2 = r[self.start:self.stop:self.step]
        for nrow in range(r2.shape[0]):
            for colname in table1.colnames:
                self.assertTrue(allequal(r2[nrow][colname],
                                         table2[nrow][colname]))

        # Assert the number of rows in table
        if common.verbose:
            print("nrows in table2-->", table2.nrows)
            print("and it should be-->", r2.shape[0])
        self.assertEqual(r2.shape[0], table2.nrows)

    def test02_indexclosef(self):
        """Checking Table.copy() method with indexes (close file version)"""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test02_indexclosef..." % self.__class__.__name__)

        # Create a recarray exceeding buffers capability
        r = records.array(b'aaaabbbbccccddddeeeeffffgggg' * 200,
                          formats='2i2, i4, (2,3)u2, f4, f8', shape=10)
        # Save it in a table:
        table1 = self.h5file.create_table(self.h5file.root, 'table1', r,
                                          "title table1")

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen(mode='a')
            table1 = self.h5file.root.table1

        # Copy to another table
        table1.nrowsinbuf = self.nrowsinbuf
        table2 = table1.copy("/", 'table2',
                             start=self.start,
                             stop=self.stop,
                             step=self.step)

        self._reopen()
        table1 = self.h5file.root.table1
        table2 = self.h5file.root.table2

        if common.verbose:
            print("table1-->", table1.read())
            print("table2-->", table2.read())
            print("attrs table1-->", repr(table1.attrs))
            print("attrs table2-->", repr(table2.attrs))

        # Check that all the elements are equal
        r2 = r[self.start:self.stop:self.step]
        for nrow in range(r2.shape[0]):
            for colname in table1.colnames:
                self.assertTrue(allequal(r2[nrow][colname],
                                         table2[nrow][colname]))

        # Assert the number of rows in table
        if common.verbose:
            print("nrows in table2-->", table2.nrows)
            print("and it should be-->", r2.shape[0])
        self.assertEqual(r2.shape[0], table2.nrows)


class CopyIndex1TestCase(CopyIndexTestCase):
    nrowsinbuf = 2
    close = 1
    start = 0
    stop = 7
    step = 1


class CopyIndex2TestCase(CopyIndexTestCase):
    nrowsinbuf = 2
    close = 0
    start = 0
    stop = -1
    step = 1


class CopyIndex3TestCase(CopyIndexTestCase):
    nrowsinbuf = 3
    close = 1
    start = 1
    stop = 7
    step = 1


class CopyIndex4TestCase(CopyIndexTestCase):
    nrowsinbuf = 4
    close = 0
    start = 0
    stop = 6
    step = 1


class CopyIndex5TestCase(CopyIndexTestCase):
    nrowsinbuf = 2
    close = 1
    start = 3
    stop = 7
    step = 1


class CopyIndex6TestCase(CopyIndexTestCase):
    nrowsinbuf = 2
    close = 0
    start = 3
    stop = 6
    step = 2


class CopyIndex7TestCase(CopyIndexTestCase):
    nrowsinbuf = 2
    close = 1
    start = 0
    stop = 7
    step = 10


class CopyIndex8TestCase(CopyIndexTestCase):
    nrowsinbuf = 2
    close = 0
    start = 6
    stop = 3
    step = 1


class CopyIndex9TestCase(CopyIndexTestCase):
    nrowsinbuf = 2
    close = 1
    start = 3
    stop = 4
    step = 1


class CopyIndex10TestCase(CopyIndexTestCase):
    nrowsinbuf = 1
    close = 0
    start = 3
    stop = 4
    step = 2


class CopyIndex11TestCase(CopyIndexTestCase):
    nrowsinbuf = 2
    close = 1
    start = -3
    stop = -1
    step = 2


class CopyIndex12TestCase(CopyIndexTestCase):
    nrowsinbuf = 3
    close = 0
    start = -1   # Should point to the last element
    stop = None  # None should mean the last element (including it)
    step = 1


class LargeRowSize(common.TempFileMixin, TestCase):
    def test00(self):
        """Checking saving a Table with a moderately large rowsize"""

        # Create a recarray
        r = records.array([[np.arange(100)]*2])

        # Save it in a table:
        self.h5file.create_table(self.h5file.root, 'largerow', r)

        # Read it again
        r2 = self.h5file.root.largerow.read()

        self.assertEqual(r.tostring(), r2.tostring())

    def test01(self):
        """Checking saving a Table with an extremely large rowsize"""

        # Create a recarray
        r = records.array([[np.arange(40000)]*4])   # 640 KB

        # Save it in a table:
#         try:
#             fileh.create_table(fileh.root, 'largerow', r)
#         except ValueError:
#             if common.verbose:
#                 (type, value, traceback) = sys.exc_info()
#               print "\nGreat!, the next ValueError was catched!"
#                 print value
#         else:
#             self.fail("expected a ValueError")
        # From PyTables 1.3 on, we allow row sizes equal or larger than 640 KB
        self.h5file.create_table(self.h5file.root, 'largerow', r)

        # Read it again
        r2 = self.h5file.root.largerow.read()
        self.assertEqual(r.tostring(), r2.tostring())


class DefaultValues(common.TempFileMixin, TestCase):
    record = Record

    def test00(self):
        """Checking saving a Table with default values (using the same Row)"""

        # Create a table
        table = self.h5file.create_table(self.h5file.root, 'table',
                                         self.record)

        table.nrowsinbuf = 46   # minimum amount that reproduces a problem
        # Take a number of records a bit greater
        nrows = int(table.nrowsinbuf * 1.1)
        row = table.row
        # Fill the table with nrows records
        for i in range(nrows):
            if i == 3:
                row['var2'] = 2
            if i == 4:
                row['var3'] = 3
            # This injects the row values.
            row.append()

        # We need to flush the buffers in table in order to get an
        # accurate number of records on it.
        table.flush()

        # Create a recarray with the same default values
        values = [b"abcd", 1, 2, 3.1, 4.2, 5, "e", 1, 1j, 1 + 0j]
        formats = 'a4,i4,i2,f8,f4,u2,a1,b1,c8,c16'.split(',')

        if hasattr(tables, 'Float16Col'):
            values.append(6.4)
            formats.append('f2')
        if hasattr(tables, 'Float96Col'):
            values.append(6.4)
            formats.append('f12')
        if hasattr(tables, 'Float128Col'):
            values.append(6.4)
            formats.append('f16')
        if hasattr(tables, 'Complex192Col'):
            values.append(1.-0.j)
            formats.append('c24')
        if hasattr(tables, 'Complex256Col'):
            values.append(1.-0.j)
            formats.append('c32')

        r = records.array([values]*nrows, formats=','.join(formats))

        # Assign the value exceptions
        r["f1"][3] = 2
        r["f2"][4] = 3

        # Read the table in another recarray
        # r2 = table.read()
        r2 = table[::]  # Equivalent to table.read()

        # This generates too much output. Activate only when
        # self.nrowsinbuf is very small (<10)
        if common.verbose:
            print("First 10 table values:")
            for row in table.iterrows(0, 10):
                print(row)
            print("The first 5 read recarray values:")
            print(r2[:5])
            print("Records should look like:")
            print(r[:5])

        for name1, name2 in zip(r.dtype.names, r2.dtype.names):
            self.assertTrue(allequal(r[name1], r2[name2]))

        # The following can give false errors when columns with extended
        # precision data type are present in the record.
        # It is probably due to some difference in the value of bits used
        # for patting (longdoubles use just 80 bits but are stored in 96 or
        # 128 bits in numpy arrays)
        # self.assertEqual(r.tostring(), r2.tostring())

    def test01(self):
        """Checking saving a Table with default values (using different Row)"""

        # Create a table
        table = self.h5file.create_table(self.h5file.root, 'table',
                                         self.record)

        table.nrowsinbuf = 46   # minimum amount that reproduces a problem
        # Take a number of records a bit greater
        nrows = int(table.nrowsinbuf * 1.1)
        # Fill the table with nrows records
        for i in range(nrows):
            if i == 3:
                table.row['var2'] = 2
            if i == 4:
                table.row['var3'] = 3
            # This injects the row values.
            table.row.append()

        # We need to flush the buffers in table in order to get an
        # accurate number of records on it.
        table.flush()

        # Create a recarray with the same default values
        values = [b"abcd", 1, 2, 3.1, 4.2, 5, "e", 1, 1j, 1 + 0j]
        formats = 'a4,i4,i2,f8,f4,u2,a1,b1,c8,c16'.split(',')

        if hasattr(tables, 'Float16Col'):
            values.append(6.4)
            formats.append('f2')
        if hasattr(tables, 'Float96Col'):
            values.append(6.4)
            formats.append('f12')
        if hasattr(tables, 'Float128Col'):
            values.append(6.4)
            formats.append('f16')
        if hasattr(tables, 'Complex192Col'):
            values.append(1.-0.j)
            formats.append('c24')
        if hasattr(tables, 'Complex256Col'):
            values.append(1.-0.j)
            formats.append('c32')

        r = records.array([values]*nrows, formats=','.join(formats))

        # Assign the value exceptions
        r["f1"][3] = 2
        r["f2"][4] = 3

        # Read the table in another recarray
        # r2 = table.read()
        r2 = table[::]  # Equivalent to table.read()

        # This generates too much output. Activate only when
        # self.nrowsinbuf is very small (<10)
        if common.verbose:
            print("First 10 table values:")
            for row in table.iterrows(0, 10):
                print(row)
            print("The first 5 read recarray values:")
            print(r2[:5])
            print("Records should look like:")
            print(r[:5])

        for name1, name2 in zip(r.dtype.names, r2.dtype.names):
            self.assertTrue(allequal(r[name1], r2[name2]))

        # The following can give false errors when columns with extended
        # precision data type are present in the record.
        # It is probably due to some difference in the value of bits used
        # for patting (longdoubles use just 80 bits but are stored in 96 or
        # 128 bits in numpy arrays)
        # self.assertEqual(r.tostring(), r2.tostring())


class OldRecordDefaultValues(DefaultValues):
    title = "OldRecordDefaultValues"
    record = OldRecord


class Record2(tables.IsDescription):
    var1 = StringCol(itemsize=4, dflt=b"abcd")  # 4-character String
    var2 = IntCol(dflt=1)                       # integer
    var3 = Int16Col(dflt=2)                     # short integer
    var4 = Float64Col(dflt=3.1)                 # double (double-precision)


class LengthTestCase(common.TempFileMixin, TestCase):
    record = Record
    nrows = 20

    def setUp(self):
        super(LengthTestCase, self).setUp()

        # Create an instance of an HDF5 Table
        self.rootgroup = self.h5file.root
        self.populateFile()

    def populateFile(self):
        # Create a table
        table = self.h5file.create_table(self.h5file.root, 'table',
                                         self.record, title="__length__ test")
        # Get the row object associated with the new table
        row = table.row

        # Fill the table
        for i in range(self.nrows):
            row.append()

        # Flush the buffer for this table
        table.flush()
        self.table = table

    def test01_lengthrows(self):
        """Checking __length__ in Table."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test01_lengthrows..." % self.__class__.__name__)

        # Number of rows
        len(self.table) == self.nrows

    def test02_lengthcols(self):
        """Checking __length__ in Cols."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test02_lengthcols..." % self.__class__.__name__)

        # Number of columns
        if self.record is Record:
            len(self.table.cols) == 8
        elif self.record is Record2:
            len(self.table.cols) == 4

    def test03_lengthcol(self):
        """Checking __length__ in Column."""

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test03_lengthcol..." % self.__class__.__name__)

        # Number of rows for all columns column
        for colname in self.table.colnames:
            len(getattr(self.table.cols, colname)) == self.nrows


class Length1TestCase(LengthTestCase):
    record = Record
    nrows = 20


class Length2TestCase(LengthTestCase):
    record = Record2
    nrows = 100


class WhereAppendTestCase(common.TempFileMixin, TestCase):
    """Tests `Table.append_where()` method."""

    class SrcTblDesc(tables.IsDescription):
        id = IntCol()
        v1 = FloatCol()
        v2 = StringCol(itemsize=8)

    def setUp(self):
        super(WhereAppendTestCase, self).setUp()

        tbl = self.h5file.create_table('/', 'test', self.SrcTblDesc)
        row = tbl.row

        row['id'] = 1
        row['v1'] = 1.5
        row['v2'] = 'a' * 8
        row.append()

        row['id'] = 2
        row['v1'] = 2.5
        row['v2'] = 'b' * 6
        row.append()

        tbl.flush()

    def test00_same(self):
        """Query with same storage."""

        DstTblDesc = self.SrcTblDesc

        tbl1 = self.h5file.root.test
        tbl2 = self.h5file.create_table('/', 'test2', DstTblDesc)

        tbl1.append_where(tbl2, 'id > 1')

        # Rows resulting from the query are those in the new table.
        it2 = iter(tbl2)
        for r1 in tbl1.where('id > 1'):
            r2 = next(it2)
            self.assertTrue(r1['id'] == r2['id'] and r1['v1'] == r2['v1']
                            and r1['v2'] == r2['v2'])

        # There are no more rows.
        self.assertRaises(StopIteration, it2.__next__)

    def test01_compatible(self):
        """Query with compatible storage."""

        class DstTblDesc(tables.IsDescription):
            id = FloatCol()  # float, not int
            v1 = FloatCol()
            v2 = StringCol(itemsize=16)  # a longer column
            v3 = FloatCol()  # extra column

        tbl1 = self.h5file.root.test
        tbl2 = self.h5file.create_table('/', 'test2', DstTblDesc)

        tbl1.append_where(tbl2, 'id > 1')

        # Rows resulting from the query are those in the new table.
        it2 = iter(tbl2)
        for r1 in tbl1.where('id > 1'):
            r2 = next(it2)
            self.assertTrue(r1['id'] == r2['id'] and r1['v1'] == r2['v1']
                            and r1['v2'] == r2['v2'])

        # There are no more rows.
        self.assertRaises(StopIteration, it2.__next__)

    def test02_lessPrecise(self):
        """Query with less precise storage."""

        class DstTblDesc(tables.IsDescription):
            id = IntCol()
            v1 = IntCol()  # int, not float
            v2 = StringCol(itemsize=8)

        tbl1 = self.h5file.root.test
        tbl2 = self.h5file.create_table('/', 'test2', DstTblDesc)

        tbl1.append_where(tbl2, 'id > 1')

        # Rows resulting from the query are those in the new table.
        it2 = iter(tbl2)
        for r1 in tbl1.where('id > 1'):
            r2 = next(it2)
            self.assertTrue(r1['id'] == r2['id'] and int(r1['v1']) == r2['v1']
                            and r1['v2'] == r2['v2'])

        # There are no more rows.
        self.assertRaises(StopIteration, it2.__next__)

    def test03_incompatible(self):
        """Query with incompatible storage."""

        class DstTblDesc(tables.IsDescription):
            id = StringCol(itemsize=4)  # string, not int
            v1 = FloatCol()
            v2 = StringCol(itemsize=8)

        tbl1 = self.h5file.root.test
        tbl2 = self.h5file.create_table('/', 'test2', DstTblDesc)

        self.assertRaises(NotImplementedError,
                          tbl1.append_where, tbl2, 'v1 == b"1"')

    def test04_noColumn(self):
        """Query with storage lacking columns."""

        class DstTblDesc(tables.IsDescription):
            # no ``id`` field
            v1 = FloatCol()
            v2 = StringCol(itemsize=8)

        tbl1 = self.h5file.root.test
        tbl2 = self.h5file.create_table('/', 'test2', DstTblDesc)

        self.assertRaises(KeyError, tbl1.append_where, tbl2, 'id > 1')

    def test05_otherFile(self):
        """Appending to a table in another file."""

        h5fname2 = tempfile.mktemp(suffix='.h5')

        try:
            with tables.open_file(h5fname2, 'w') as h5file2:
                tbl1 = self.h5file.root.test
                tbl2 = h5file2.create_table('/', 'test', self.SrcTblDesc)

                # RW to RW.
                tbl1.append_where(tbl2, 'id > 1')

            # RW to RO.
            with tables.open_file(h5fname2, 'r') as h5file2:
                tbl2 = h5file2.root.test
                self.assertRaises(tables.FileModeError,
                                  tbl1.append_where, tbl2, 'id > 1')

                # RO to RO.
                self._reopen('r')
                tbl1 = self.h5file.root.test
                self.assertRaises(tables.FileModeError,
                                  tbl1.append_where, tbl2, 'id > 1')

            # RO to RW.
            with tables.open_file(h5fname2, 'a') as h5file2:
                tbl2 = h5file2.root.test
                tbl1.append_where(tbl2, 'id > 1')
        finally:
            if os.path.exists(h5fname2):
                os.remove(h5fname2)


class DerivedTableTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(DerivedTableTestCase, self).setUp()
        self.h5file.create_table('/', 'original', Record)

    def test00(self):
        """Deriving a table from the description of another."""

        tbl1 = self.h5file.root.original
        tbl2 = self.h5file.create_table('/', 'derived', tbl1.description)

        self.assertEqual(tbl1.description, tbl2.description)


class ChunkshapeTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(ChunkshapeTestCase, self).setUp()
        self.h5file.create_table('/', 'table', Record, chunkshape=13)

    def test00(self):
        """Test setting the chunkshape in a table (no reopen)."""

        tbl = self.h5file.root.table
        if common.verbose:
            print("chunkshape-->", tbl.chunkshape)
        self.assertEqual(tbl.chunkshape, (13,))

    def test01(self):
        """Test setting the chunkshape in a table (reopen)."""

        self.h5file.close()
        self.h5file = tables.open_file(self.h5fname, 'r')
        tbl = self.h5file.root.table
        if common.verbose:
            print("chunkshape-->", tbl.chunkshape)
        self.assertEqual(tbl.chunkshape, (13,))


# Test for appending zero-sized recarrays
class ZeroSizedTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(ZeroSizedTestCase, self).setUp()

        # Create a Table
        t = self.h5file.create_table('/', 'table',
                                     {'c1': Int32Col(), 'c2': Float64Col()})
        # Append a single row
        t.append([(1, 2.2)])

    def test01_canAppend(self):
        """Appending zero length recarray."""

        t = self.h5file.root.table
        a = np.empty(shape=(0,), dtype='i4,f8')
        t.append(a)
        self.assertEqual(t.nrows, 1, "The number of rows should be 1.")


# Case for testing ticket #103, i.e. selections in columns which are
# aligned but that its data length is not an exact multiple of the
# length of the record.  This exposes the problem only in 32-bit
# machines, because in 64-bit machine, 'c2' is unaligned.  However,
# this should check most platforms where, while not unaligned,
# len(datatype) > boundary_alignment is fullfilled.
class IrregularStrideTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(IrregularStrideTestCase, self).setUp()

        class IRecord(tables.IsDescription):
            c1 = Int32Col(pos=1)
            c2 = Float64Col(pos=2)

        table = self.h5file.create_table('/', 'table', IRecord)
        for i in range(10):
            table.row['c1'] = i
            table.row['c2'] = i
            table.row.append()
        table.flush()

    def test00(self):
        """Selecting rows in a table with irregular stride (but aligned)."""

        table = self.h5file.root.table
        coords1 = table.get_where_list('c1<5')
        coords2 = table.get_where_list('c2<5')
        if common.verbose:
            print("\nSelected coords1-->", coords1)
            print("Selected coords2-->", coords2)
        self.assertTrue(allequal(coords1, np.arange(5, dtype=SizeType)))
        self.assertTrue(allequal(coords2, np.arange(5, dtype=SizeType)))


class Issue262TestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(Issue262TestCase, self).setUp()

        class IRecord(tables.IsDescription):
            c1 = Int32Col(pos=1)
            c2 = Float64Col(pos=2)

        table = self.h5file.create_table('/', 'table', IRecord)
        table.nrowsinbuf = 3

        for i in range(20):
            table.row['c1'] = i
            table.row['c2'] = i
            table.row.append()

            table.row['c1'] = i % 29
            table.row['c2'] = 300 - i
            table.row.append()

            table.row['c1'] = 300 - i
            table.row['c2'] = 100 + i % 30
            table.row.append()

        table.flush()

    def test_gh260(self):
        """Regression test for gh-260"""

        table = self.h5file.root.table
        coords1 = table.get_where_list('(c1>5)&(c2<30)', start=0, step=2)
        coords2 = table.get_where_list('(c1>5)&(c2<30)', start=1, step=2)
        data = table.read()
        data = data[np.where((data['c1'] > 5) & (data['c2'] < 30))]

        if common.verbose:
            print()
            print("Selected coords1-->", coords1)
            print("Selected coords2-->", coords2)
            print("Selected data-->", data)
        self.assertEqual(len(coords1) + len(coords2), len(data))

    def test_gh262_01(self):
        """Regression test for gh-262 (start=0, step=1)"""

        table = self.h5file.root.table
        data = table.get_where_list('(c1>5)&(~(c1>5))', start=0, step=1)

        if common.verbose:
            print()
            print("data -->", data)
        self.assertEqual(len(data), 0)

    def test_gh262_02(self):
        """Regression test for gh-262 (start=1, step=1)"""

        table = self.h5file.root.table
        data = table.get_where_list('(c1>5)&(~(c1>5))', start=1, step=1)

        if common.verbose:
            print()
            print("data -->", data)
        self.assertEqual(len(data), 0)

    def test_gh262_03(self):
        """Regression test for gh-262 (start=0, step=2)"""

        table = self.h5file.root.table
        data = table.get_where_list('(c1>5)&(~(c1>5))', start=0, step=2)

        if common.verbose:
            print()
            print("data -->", data)
        self.assertEqual(len(data), 0)

    def test_gh262_04(self):
        """Regression test for gh-262 (start=1, step=2)"""

        table = self.h5file.root.table
        data = table.get_where_list('(c1>5)&(~(c1>5))', start=1, step=2)

        if common.verbose:
            print()
            print("data -->", data)
        self.assertEqual(len(data), 0)


class TruncateTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(TruncateTestCase, self).setUp()

        table = self.h5file.create_table('/', 'table', self.IRecord)
        # Fill just a couple of rows
        for i in range(2):
            table.row['c1'] = i
            table.row['c2'] = i
            table.row.append()
        table.flush()
        # The defaults
        self.dflts = table.coldflts

    def test00_truncate(self):
        """Checking Table.truncate() method (truncating to 0 rows)"""

        table = self.h5file.root.table
        # Truncate to 0 elements
        table.truncate(0)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen()
            table = self.h5file.root.table

        if common.verbose:
            print("table-->", table.read())

        self.assertEqual(table.nrows, 0)
        for row in table:
            self.assertEqual(row['c1'], row.nrow)

    def test01_truncate(self):
        """Checking Table.truncate() method (truncating to 1 rows)"""

        table = self.h5file.root.table
        # Truncate to 1 element
        table.truncate(1)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen()
            table = self.h5file.root.table

        if common.verbose:
            print("table-->", table.read())

        self.assertEqual(table.nrows, 1)
        for row in table:
            self.assertEqual(row['c1'], row.nrow)

    def test02_truncate(self):
        """Checking Table.truncate() method (truncating to == self.nrows)"""

        table = self.h5file.root.table
        # Truncate to 2 elements
        table.truncate(2)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen()
            table = self.h5file.root.table

        if common.verbose:
            print("table-->", table.read())

        self.assertEqual(table.nrows, 2)
        for row in table:
            self.assertEqual(row['c1'], row.nrow)

    def test03_truncate(self):
        """Checking Table.truncate() method (truncating to > self.nrows)"""

        table = self.h5file.root.table
        # Truncate to 4 elements
        table.truncate(4)

        if self.close:
            if common.verbose:
                print("(closing file version)")
            self._reopen()
            table = self.h5file.root.table

        if common.verbose:
            print("table-->", table.read())

        self.assertEqual(table.nrows, 4)
        # Check the original values
        for row in table.iterrows(start=0, stop=2):
            self.assertEqual(row['c1'], row.nrow)
        # Check that the added rows have the default values
        for row in table.iterrows(start=2, stop=4):
            self.assertEqual(row['c1'], self.dflts['c1'])
            self.assertEqual(row['c2'], self.dflts['c2'])


class TruncateOpen1(TruncateTestCase):
    class IRecord(tables.IsDescription):
        c1 = Int32Col(pos=1)
        c2 = FloatCol(pos=2)
    close = 0


class TruncateOpen2(TruncateTestCase):
    class IRecord(tables.IsDescription):
        c1 = Int32Col(pos=1, dflt=3)
        c2 = FloatCol(pos=2, dflt=-3.1)
    close = 0


class TruncateClose1(TruncateTestCase):
    class IRecord(tables.IsDescription):
        c1 = Int32Col(pos=1)
        c2 = FloatCol(pos=2)
    close = 1


class TruncateClose2(TruncateTestCase):
    class IRecord(tables.IsDescription):
        c1 = Int32Col(pos=1, dflt=4)
        c2 = FloatCol(pos=2, dflt=3.1)
    close = 1


class PointSelectionTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(PointSelectionTestCase, self).setUp()

        N = 100

        self.working_keyset = [
            [0, 1],
            [0, -1],
        ]
        self.not_working_keyset = [
            [0, N],
            [0, N+1],
            [0, -N-1],
        ]

        # Limits for selections
        self.limits = [
            (0, 1),  # just one element
            (20, -10),  # no elements
            (-10, 4),  # several elements
            (0, 10),   # several elements (again)
        ]

        # Create a sample tables
        self.data = data = np.arange(N)
        self.recarr = recarr = np.empty(N, dtype="i4,f4")
        recarr["f0"][:] = data
        recarr["f1"][:] = data
        self.table = self.h5file.create_table(self.h5file.root, 'table',
                                              recarr)

    def test01a_read(self):
        """Test for point-selections (read, boolean keys)."""

        data = self.data
        recarr = self.recarr
        table = self.table
        for value1, value2 in self.limits:
            key = (data >= value1) & (data < value2)
            if common.verbose:
                print("Selection to test:", key)
            a = recarr[key]
            b = table[key]
            if common.verbose:
                print("NumPy selection:", a)
                print("PyTables selection:", b)
            npt.assert_array_equal(
                a, b, "NumPy array and PyTables selections does not match.")

    def test01b_read(self):
        """Test for point-selections (read, tuples of integers keys)."""

        data = self.data
        recarr = self.recarr
        table = self.table
        for value1, value2 in self.limits:
            key = np.where((data >= value1) & (data < value2))
            if common.verbose:
                print("Selection to test:", key, type(key))
            a = recarr[key]
            b = table[key]
            npt.assert_array_equal(
                a, b, "NumPy array and PyTables selections does not match.")

    def test01c_read(self):
        """Test for point-selections (read, tuples of floats keys)."""

        data = self.data
        recarr = self.recarr
        table = self.table
        for value1, value2 in self.limits:
            key = np.where((data >= value1) & (data < value2))
            if common.verbose:
                print("Selection to test:", key)
            recarr[key]
            fkey = np.array(key, "f4")
            self.assertRaises(TypeError, table.__getitem__, fkey)

    def test01d_read(self):
        """Test for point-selections (read, numpy keys)."""

        data = self.data
        recarr = self.recarr
        table = self.table
        for value1, value2 in self.limits:
            key = np.where((data >= value1) & (data < value2))[0]
            if common.verbose:
                print("Selection to test:", key, type(key))
            a = recarr[key]
            b = table[key]
            npt.assert_array_equal(
                a, b, "NumPy array and PyTables selections does not match.")

    def test01e_read(self):
        """Test for point-selections (read, list keys)."""

        data = self.data
        recarr = self.recarr
        table = self.table
        for value1, value2 in self.limits:
            key = np.where((data >= value1) & (data < value2))[0].tolist()
            if common.verbose:
                print("Selection to test:", key, type(key))
            a = recarr[key]
            b = table[key]
            npt.assert_array_equal(
                a, b, "NumPy array and PyTables selections does not match.")

    def test01f_read(self):
        recarr = self.recarr
        table = self.table

        for key in self.working_keyset:
            if common.verbose:
                print("Selection to test:", key)
            a = recarr[key]
            b = table[key]
            npt.assert_array_equal(
                a, b, "NumPy array and PyTables selections does not match.")

    def test01g_read(self):
        table = self.table

        for key in self.not_working_keyset:
            if common.verbose:
                print("Selection to test:", key)

            self.assertRaises(IndexError, table.__getitem__, key)

    def test02a_write(self):
        """Test for point-selections (write, boolean keys)."""

        data = self.data
        recarr = self.recarr
        table = self.table
        for value1, value2 in self.limits:
            key = np.where((data >= value1) & (data < value2))
            if common.verbose:
                print("Selection to test:", key)
            s = recarr[key]
            # Modify the s recarray
            s["f0"][:] = data[:len(s)]*2
            s["f1"][:] = data[:len(s)]*3
            # Modify recarr and table
            recarr[key] = s
            table[key] = s
            a = recarr[:]
            b = table[:]
            npt.assert_array_equal(
                a, b, "NumPy array and PyTables modifications does not match.")

    def test02b_write(self):
        """Test for point-selections (write, integer keys)."""

        data = self.data
        recarr = self.recarr
        table = self.table
        for value1, value2 in self.limits:
            key = np.where((data >= value1) & (data < value2))
            if common.verbose:
                print("Selection to test:", key)
            s = recarr[key]
            # Modify the s recarray
            s["f0"][:] = data[:len(s)]*2
            s["f1"][:] = data[:len(s)]*3
            # Modify recarr and table
            recarr[key] = s
            table[key] = s
            a = recarr[:]
            b = table[:]
            npt.assert_array_equal(
                a, b, "NumPy array and PyTables modifications does not match.")


# Test for building very large MD columns without defaults
class MDLargeColTestCase(common.TempFileMixin, TestCase):
    def test01_create(self):
        "Create a Table with a very large MD column.  Ticket #211."
        N = 2**18      # 4x larger than maximum object header size (64 KB)
        cols = {'col1': Int8Col(shape=N, dflt=0)}
        tbl = self.h5file.create_table('/', 'test', cols)
        tbl.row.append()   # add a single row
        tbl.flush()
        if self.reopen:
            self._reopen('a')
            tbl = self.h5file.root.test
        # Check the value
        if common.verbose:
            print("First row-->", tbl[0]['col1'])
        npt.assert_array_equal(tbl[0]['col1'], np.zeros(N, 'i1'))


class MDLargeColNoReopen(MDLargeColTestCase):
    reopen = False


class MDLargeColReopen(MDLargeColTestCase):
    reopen = True


# Test with itertools.groupby that iterates on exhausted Row iterator
# See ticket #264.
class ExhaustedIter(common.TempFileMixin, TestCase):
    def setUp(self):
        super(ExhaustedIter, self).setUp()

        class Observations(tables.IsDescription):
            market_id = IntCol(pos=0)
            scenario_id = IntCol(pos=1)
            value = Float32Col(pos=3)

        table = self.h5file.create_table('/', 'observations', Observations,
                                         chunkshape=32)

        # fill the database
        observations = np.arange(225)
        row = table.row
        for market_id in range(5):
            for scenario_id in range(3):
                for obs in observations:
                    row['market_id'] = market_id
                    row['scenario_id'] = scenario_id
                    row['value'] = obs
                    row.append()
        table.flush()

    def average(self, values):
        return sum(values, 0.0) / len(values)

    def f_scenario(self, row):
        return row['scenario_id']

    def test00_groupby(self):
        """Checking iterating an exhausted iterator (ticket #264)"""
        from itertools import groupby
        rows = self.h5file.root.observations.where('(market_id == 3)')
        scenario_means = []
        for scenario_id, rows_grouped in groupby(rows, self.f_scenario):
            vals = [row['value'] for row in rows_grouped]
            scenario_means.append(self.average(vals))
        if common.verbose:
            print('Means -->', scenario_means)
        self.assertEqual(scenario_means, [112.0, 112.0, 112.0])

    def test01_groupby(self):
        """Checking iterating an exhausted iterator (ticket #264). Reopen."""

        self._reopen()

        rows = self.h5file.root.observations.where('(market_id == 3)')
        scenario_means = []
        for scenario_id, rows_grouped in groupby(rows, self.f_scenario):
            vals = [row['value'] for row in rows_grouped]
            scenario_means.append(self.average(vals))
        if common.verbose:
            print('Means -->', scenario_means)
        self.assertEqual(scenario_means, [112.0, 112.0, 112.0])


class SpecialColnamesTestCase(common.TempFileMixin, TestCase):
    def test00_check_names(self):
        f = self.h5file
        a = np.array([(1, 2, 3)], dtype=[(
            "a", int), ("_b", int), ("__c", int)])
        t = f.create_table(f.root, "test", a)
        self.assertEqual(len(t.colnames), 3, "Number of columns incorrect")
        if common.verbose:
            print("colnames -->", t.colnames)
        for name, name2 in zip(t.colnames, ("a", "_b", "__c")):
            self.assertEqual(name, name2)


class RowContainsTestCase(common.TempFileMixin, TestCase):
    def test00_row_contains(self):
        f = self.h5file
        a = np.array([(1, 2, 3)], dtype="i1,i2,i4")
        t = f.create_table(f.root, "test", a)
        row = [r for r in t.iterrows()][0]
        if common.verbose:
            print("row -->", row[:])
        for item in (1, 2, 3):
            self.assertTrue(item in row)
        self.assertTrue(4 not in row)


class AccessClosedTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(AccessClosedTestCase, self).setUp()
        self.table = self.h5file.create_table(
            self.h5file.root, 'table', Record)

        row = self.table.row
        for i in range(10):
            row['var1'] = '%04d' % i
            row['var2'] = i
            row['var3'] = i % 3
            row.append()
        self.table.flush()

    def test_read(self):
        self.h5file.close()
        self.assertRaises(
            tables.ClosedNodeError, self.table.read)

    def test_getitem(self):
        self.h5file.close()
        self.assertRaises(
            tables.ClosedNodeError, self.table.__getitem__, 0)

    def test_setitem(self):
        data = self.table[0]
        self.h5file.close()
        self.assertRaises(
            tables.ClosedNodeError, self.table.__setitem__, 0, data)

    def test_append(self):
        data = self.table[0]
        self.h5file.close()
        self.assertRaises(
            tables.ClosedNodeError, self.table.append, data)

    def test_readWhere(self):
        self.h5file.close()
        self.assertRaises(
            tables.ClosedNodeError, self.table.read_where, 'var2 > 3')

    def test_whereAppend(self):
        self.h5file.close()
        self.assertRaises(
            tables.ClosedNodeError,
            self.table.append_where, self.table, 'var2 > 3')

    def test_getWhereList(self):
        self.h5file.close()
        self.assertRaises(
            tables.ClosedNodeError, self.table.get_where_list, 'var2 > 3')

    def test_readSorted(self):
        self.h5file.close()
        self.assertRaises(
            tables.ClosedNodeError, self.table.read_sorted, 'var2')

    def test_readCoordinates(self):
        self.h5file.close()
        self.assertRaises(
            tables.ClosedNodeError, self.table.read_coordinates, [2, 5])


class ColumnIterationTestCase(common.TempFileMixin, TestCase):
    def setUp(self):
        super(ColumnIterationTestCase, self).setUp()
        self.buffer_size = self.h5file.params['IO_BUFFER_SIZE']

    def create_non_nested_table(self, nrows, dtype):
        array = np.empty((nrows, ), dtype)
        for name in dtype.names:
            array[name] = np.random.randint(0, 10000, nrows)
        table = self.h5file.create_table('/', 'table', dtype)
        table.append(array)
        return array, table

    def iterate(self, array, table):
        row_num = 0
        for item in table.cols.f0:
            self.assertEqual(item, array['f0'][row_num])
            row_num += 1
        self.assertEqual(row_num, len(array))

    def test_less_than_io_buffer(self):
        dtype = np.format_parser(['i8'] * 3, [], []).dtype
        rows_in_buffer = self.buffer_size // dtype[0].itemsize
        array, table = self.create_non_nested_table(rows_in_buffer // 2, dtype)
        self.iterate(array, table)

    def test_more_than_io_buffer(self):
        dtype = np.format_parser(['i8'] * 3, [], []).dtype
        rows_in_buffer = self.buffer_size // dtype[0].itemsize
        array, table = self.create_non_nested_table(rows_in_buffer * 3, dtype)
        self.iterate(array, table)

    def test_partially_filled_buffer(self):
        dtype = np.format_parser(['i8'] * 3, [], []).dtype
        rows_in_buffer = self.buffer_size // dtype[0].itemsize
        array, table = self.create_non_nested_table(rows_in_buffer * 2 + 2,
                                                    dtype)
        self.iterate(array, table)

    def test_zero_length_table(self):
        dtype = np.format_parser(['i8'] * 3, [], []).dtype
        array, table = self.create_non_nested_table(0, dtype)
        self.assertEqual(len(table), 0)
        self.iterate(array, table)


class TestCreateTableArgs(common.TempFileMixin, TestCase):
    obj = np.array(
        [('aaaa', 1, 2.1), ('bbbb', 2, 3.2)],
        dtype=[('name', 'S4'), ('icol', np.int32), ('fcol', np.float32)])
    where = '/'
    name = 'table'
    description, _ = descr_from_dtype(obj.dtype)
    title = 'title'
    filters = None
    expectedrows = 10000
    chunkshape = None
    byteorder = None
    createparents = False

    def test_positional_args_01(self):
        self.h5file.create_table(self.where, self.name,
                                 self.description,
                                 self.title, self.filters,
                                 self.expectedrows)

        self._reopen()

        ptarr = self.h5file.get_node(self.where, self.name)

        self.assertEqual(ptarr.title, self.title)
        self.assertEqual(ptarr.shape, (0,))
        self.assertEqual(ptarr.nrows, 0)
        self.assertEqual(tuple(ptarr.colnames), self.obj.dtype.names)

    def test_positional_args_02(self):
        ptarr = self.h5file.create_table(self.where, self.name,
                                         self.description,
                                         self.title,
                                         self.filters,
                                         self.expectedrows)
        ptarr.append(self.obj)

        self._reopen()

        ptarr = self.h5file.get_node(self.where, self.name)
        nparr = ptarr.read()

        self.assertEqual(ptarr.title, self.title)
        self.assertEqual(ptarr.shape, (len(self.obj),))
        self.assertEqual(ptarr.nrows, len(self.obj))
        self.assertEqual(tuple(ptarr.colnames), self.obj.dtype.names)
        self.assertEqual(nparr.dtype, self.obj.dtype)
        self.assertTrue(allequal(self.obj, nparr))

    def test_positional_args_obj(self):
        self.h5file.create_table(self.where, self.name,
                                 None,
                                 self.title,
                                 self.filters,
                                 self.expectedrows,
                                 self.chunkshape,
                                 self.byteorder,
                                 self.createparents,
                                 self.obj)

        self._reopen()

        ptarr = self.h5file.get_node(self.where, self.name)
        nparr = ptarr.read()

        self.assertEqual(ptarr.title, self.title)
        self.assertEqual(ptarr.shape, (len(self.obj),))
        self.assertEqual(ptarr.nrows, len(self.obj))
        self.assertEqual(tuple(ptarr.colnames), self.obj.dtype.names)
        self.assertTrue(allequal(self.obj, nparr))

    def test_kwargs_obj(self):
        self.h5file.create_table(self.where, self.name, title=self.title,
                                 obj=self.obj)

        self._reopen()

        ptarr = self.h5file.get_node(self.where, self.name)
        nparr = ptarr.read()

        self.assertEqual(ptarr.title, self.title)
        self.assertEqual(ptarr.shape, (len(self.obj),))
        self.assertEqual(ptarr.nrows, len(self.obj))
        self.assertEqual(tuple(ptarr.colnames), self.obj.dtype.names)
        self.assertTrue(allequal(self.obj, nparr))

    def test_kwargs_description_01(self):
        ptarr = self.h5file.create_table(self.where, self.name,
                                         title=self.title,
                                         description=self.description)
        ptarr.append(self.obj)

        self._reopen()

        ptarr = self.h5file.get_node(self.where, self.name)
        nparr = ptarr.read()

        self.assertEqual(ptarr.title, self.title)
        self.assertEqual(ptarr.shape, (len(self.obj),))
        self.assertEqual(ptarr.nrows, len(self.obj))
        self.assertEqual(tuple(ptarr.colnames), self.obj.dtype.names)
        self.assertTrue(allequal(self.obj, nparr))

    def test_kwargs_description_02(self):
        ptarr = self.h5file.create_table(self.where, self.name,
                                         title=self.title,
                                         description=self.description)
        #ptarr.append(self.obj)
        self._reopen()

        ptarr = self.h5file.get_node(self.where, self.name)

        self.assertEqual(ptarr.title, self.title)
        self.assertEqual(ptarr.shape, (0,))
        self.assertEqual(ptarr.nrows, 0)
        self.assertEqual(tuple(ptarr.colnames), self.obj.dtype.names)

    def test_kwargs_obj_description(self):
        ptarr = self.h5file.create_table(self.where, self.name,
                                         title=self.title,
                                         obj=self.obj,
                                         description=self.description)

        self._reopen()

        ptarr = self.h5file.get_node(self.where, self.name)
        nparr = ptarr.read()

        self.assertEqual(ptarr.title, self.title)
        self.assertEqual(ptarr.shape, (len(self.obj),))
        self.assertEqual(ptarr.nrows, len(self.obj))
        self.assertEqual(tuple(ptarr.colnames), self.obj.dtype.names)
        self.assertTrue(allequal(self.obj, nparr))

    def test_kwargs_obj_description_error_01(self):
        self.assertRaises(TypeError,
                          self.h5file.create_table,
                          self.where,
                          self.name,
                          title=self.title,
                          obj=self.obj,
                          description=Record)

    def test_kwargs_obj_description_error_02(self):
        self.assertRaises(TypeError,
                          self.h5file.create_table,
                          self.where,
                          self.name,
                          title=self.title,
                          obj=self.obj,
                          description=Record())

    def test_kwargs_obj_description_error_03(self):
        self.assertRaises(TypeError,
                          self.h5file.create_table,
                          self.where,
                          self.name,
                          title=self.title,
                          obj=self.obj,
                          description=RecordDescriptionDict)


def suite():
    theSuite = unittest.TestSuite()
    niter = 1
    # common.heavy = 1  # uncomment this only for testing purposes

    for n in range(niter):
        theSuite.addTest(unittest.makeSuite(BasicWriteTestCase))
        theSuite.addTest(unittest.makeSuite(OldRecordBasicWriteTestCase))
        theSuite.addTest(unittest.makeSuite(DictWriteTestCase))
        theSuite.addTest(unittest.makeSuite(DictWriteTestCase2))
        theSuite.addTest(unittest.makeSuite(NumPyDTWriteTestCase))
        theSuite.addTest(unittest.makeSuite(RecArrayOneWriteTestCase))
        theSuite.addTest(unittest.makeSuite(RecArrayTwoWriteTestCase))
        theSuite.addTest(unittest.makeSuite(RecArrayThreeWriteTestCase))
        theSuite.addTest(unittest.makeSuite(CompressBloscTablesTestCase))
        theSuite.addTest(unittest.makeSuite(
            CompressBloscShuffleTablesTestCase))
        theSuite.addTest(unittest.makeSuite(
            CompressBloscBloscLZTablesTestCase))
        theSuite.addTest(unittest.makeSuite(CompressBloscLZ4TablesTestCase))
        theSuite.addTest(unittest.makeSuite(CompressBloscLZ4HCTablesTestCase))
        theSuite.addTest(unittest.makeSuite(CompressBloscSnappyTablesTestCase))
        theSuite.addTest(unittest.makeSuite(CompressBloscZlibTablesTestCase))
        theSuite.addTest(unittest.makeSuite(CompressLZOTablesTestCase))
        theSuite.addTest(unittest.makeSuite(CompressLZOShuffleTablesTestCase))
        theSuite.addTest(unittest.makeSuite(CompressZLIBTablesTestCase))
        theSuite.addTest(unittest.makeSuite(CompressZLIBShuffleTablesTestCase))
        theSuite.addTest(unittest.makeSuite(Fletcher32TablesTestCase))
        theSuite.addTest(unittest.makeSuite(AllFiltersTablesTestCase))
        theSuite.addTest(unittest.makeSuite(CompressTwoTablesTestCase))
        theSuite.addTest(unittest.makeSuite(
            SizeOnDiskInMemoryPropertyTestCase))
        theSuite.addTest(unittest.makeSuite(NonNestedTableReadTestCase))
        theSuite.addTest(unittest.makeSuite(TableReadByteorderTestCase))
        theSuite.addTest(unittest.makeSuite(IterRangeTestCase))
        theSuite.addTest(unittest.makeSuite(RecArrayRangeTestCase))
        theSuite.addTest(unittest.makeSuite(GetColRangeTestCase))
        theSuite.addTest(unittest.makeSuite(GetItemTestCase))
        theSuite.addTest(unittest.makeSuite(SetItemTestCase1))
        theSuite.addTest(unittest.makeSuite(SetItemTestCase2))
        theSuite.addTest(unittest.makeSuite(SetItemTestCase3))
        theSuite.addTest(unittest.makeSuite(SetItemTestCase4))
        theSuite.addTest(unittest.makeSuite(UpdateRowTestCase1))
        theSuite.addTest(unittest.makeSuite(UpdateRowTestCase2))
        theSuite.addTest(unittest.makeSuite(UpdateRowTestCase3))
        theSuite.addTest(unittest.makeSuite(UpdateRowTestCase4))
        theSuite.addTest(unittest.makeSuite(RecArrayIO1))
        theSuite.addTest(unittest.makeSuite(RecArrayIO2))
        theSuite.addTest(unittest.makeSuite(OpenCopyTestCase))
        theSuite.addTest(unittest.makeSuite(CloseCopyTestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex1TestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex2TestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex3TestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex4TestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex5TestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex6TestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex7TestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex8TestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex9TestCase))
        theSuite.addTest(unittest.makeSuite(DefaultValues))
        theSuite.addTest(unittest.makeSuite(OldRecordDefaultValues))
        theSuite.addTest(unittest.makeSuite(Length1TestCase))
        theSuite.addTest(unittest.makeSuite(Length2TestCase))
        theSuite.addTest(unittest.makeSuite(WhereAppendTestCase))
        theSuite.addTest(unittest.makeSuite(DerivedTableTestCase))
        theSuite.addTest(unittest.makeSuite(ChunkshapeTestCase))
        theSuite.addTest(unittest.makeSuite(ZeroSizedTestCase))
        theSuite.addTest(unittest.makeSuite(IrregularStrideTestCase))
        theSuite.addTest(unittest.makeSuite(Issue262TestCase))
        theSuite.addTest(unittest.makeSuite(TruncateOpen1))
        theSuite.addTest(unittest.makeSuite(TruncateOpen2))
        theSuite.addTest(unittest.makeSuite(TruncateClose1))
        theSuite.addTest(unittest.makeSuite(TruncateClose2))
        theSuite.addTest(unittest.makeSuite(PointSelectionTestCase))
        theSuite.addTest(unittest.makeSuite(MDLargeColNoReopen))
        theSuite.addTest(unittest.makeSuite(MDLargeColReopen))
        theSuite.addTest(unittest.makeSuite(ExhaustedIter))
        theSuite.addTest(unittest.makeSuite(SpecialColnamesTestCase))
        theSuite.addTest(unittest.makeSuite(RowContainsTestCase))
        theSuite.addTest(unittest.makeSuite(AccessClosedTestCase))
        theSuite.addTest(unittest.makeSuite(ColumnIterationTestCase))
        theSuite.addTest(unittest.makeSuite(TestCreateTableArgs))

    if common.heavy:
        theSuite.addTest(unittest.makeSuite(CompressBzip2TablesTestCase))
        theSuite.addTest(unittest.makeSuite(
            CompressBzip2ShuffleTablesTestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex10TestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex11TestCase))
        theSuite.addTest(unittest.makeSuite(CopyIndex12TestCase))
        theSuite.addTest(unittest.makeSuite(LargeRowSize))
        theSuite.addTest(unittest.makeSuite(BigTablesTestCase))

    return theSuite


if __name__ == '__main__':
    common.parse_argv(sys.argv)
    common.print_versions()
    unittest.main(defaultTest='suite')
