(function( $ ) {

module( "core - selectors" );

function isFocusable( selector, msg ) {
	QUnit.push( $( selector ).is( ":focusable" ), null, null,
		msg + " - selector " + selector + " is focusable" );
}

function isNotFocusable( selector, msg ) {
	QUnit.push( $( selector ).length && !$( selector ).is(":focusable"), null, null,
		msg + " - selector " + selector + " is not focusable" );
}

function isTabbable( selector, msg ) {
	QUnit.push( $( selector ).is( ":tabbable" ), null, null,
		msg + " - selector " + selector + " is tabbable" );
}

function isNotTabbable( selector, msg ) {
	QUnit.push( $( selector ).length && !$( selector ).is( ":tabbable" ), null, null,
		msg + " - selector " + selector + " is not tabbable" );
}

test( "data", function() {
	expect( 15 );

	var element;

	function shouldHaveData( msg ) {
		ok( element.is( ":data(test)" ), msg );
	}

	function shouldNotHaveData( msg ) {
		ok( !element.is( ":data(test)" ), msg );
	}

	element = $( "<div>" );
	shouldNotHaveData( "data never set" );

	element = $( "<div>" ).data( "test", null );
	shouldNotHaveData( "data is null" );

	element = $( "<div>" ).data( "test", true );
	shouldHaveData( "data set to true" );

	element = $( "<div>" ).data( "test", false );
	shouldNotHaveData( "data set to false" );

	element = $( "<div>" ).data( "test", 0 );
	shouldNotHaveData( "data set to 0" );

	element = $( "<div>" ).data( "test", 1 );
	shouldHaveData( "data set to 1" );

	element = $( "<div>" ).data( "test", "" );
	shouldNotHaveData( "data set to empty string" );

	element = $( "<div>" ).data( "test", "foo" );
	shouldHaveData( "data set to string" );

	element = $( "<div>" ).data( "test", [] );
	shouldHaveData( "data set to empty array" );

	element = $( "<div>" ).data( "test", [ 1 ] );
	shouldHaveData( "data set to array" );

	element = $( "<div>" ).data( "test", {} );
	shouldHaveData( "data set to empty object" );

	element = $( "<div>" ).data( "test", { foo: "bar" } );
	shouldHaveData( "data set to object" );

	element = $( "<div>" ).data( "test", new Date() );
	shouldHaveData( "data set to date" );

	element = $( "<div>" ).data( "test", /test/ );
	shouldHaveData( "data set to regexp" );

	element = $( "<div>" ).data( "test", function() {} );
	shouldHaveData( "data set to function" );
});

test( "focusable - visible, enabled elements", function() {
	expect( 18 );

	isNotFocusable( "#formNoTabindex", "form" );
	isFocusable( "#formTabindex", "form with tabindex" );
	isFocusable( "#visibleAncestor-inputTypeNone", "input, no type" );
	isFocusable( "#visibleAncestor-inputTypeText", "input, type text" );
	isFocusable( "#visibleAncestor-inputTypeCheckbox", "input, type checkbox" );
	isFocusable( "#visibleAncestor-inputTypeRadio", "input, type radio" );
	isFocusable( "#visibleAncestor-inputTypeButton", "input, type button" );
	isNotFocusable( "#visibleAncestor-inputTypeHidden", "input, type hidden" );
	isFocusable( "#visibleAncestor-button", "button" );
	isFocusable( "#visibleAncestor-select", "select" );
	isFocusable( "#visibleAncestor-textarea", "textarea" );
	isFocusable( "#visibleAncestor-object", "object" );
	isFocusable( "#visibleAncestor-anchorWithHref", "anchor with href" );
	isNotFocusable( "#visibleAncestor-anchorWithoutHref", "anchor without href" );
	isNotFocusable( "#visibleAncestor-span", "span" );
	isNotFocusable( "#visibleAncestor-div", "div" );
	isFocusable( "#visibleAncestor-spanWithTabindex", "span with tabindex" );
	isFocusable( "#visibleAncestor-divWithNegativeTabindex", "div with tabindex" );
});

test( "focusable - disabled elements", function() {
	expect( 9 );

	isNotFocusable( "#disabledElement-inputTypeNone", "input, no type" );
	isNotFocusable( "#disabledElement-inputTypeText", "input, type text" );
	isNotFocusable( "#disabledElement-inputTypeCheckbox", "input, type checkbox" );
	isNotFocusable( "#disabledElement-inputTypeRadio", "input, type radio" );
	isNotFocusable( "#disabledElement-inputTypeButton", "input, type button" );
	isNotFocusable( "#disabledElement-inputTypeHidden", "input, type hidden" );
	isNotFocusable( "#disabledElement-button", "button" );
	isNotFocusable( "#disabledElement-select", "select" );
	isNotFocusable( "#disabledElement-textarea", "textarea" );
});

test( "focusable - hidden styles", function() {
	expect( 8 );

	isNotFocusable( "#displayNoneAncestor-input", "input, display: none parent" );
	isNotFocusable( "#displayNoneAncestor-span", "span with tabindex, display: none parent" );

	isNotFocusable( "#visibilityHiddenAncestor-input", "input, visibility: hidden parent" );
	isNotFocusable( "#visibilityHiddenAncestor-span", "span with tabindex, visibility: hidden parent" );

	isNotFocusable( "#displayNone-input", "input, display: none" );
	isNotFocusable( "#visibilityHidden-input", "input, visibility: hidden" );

	isNotFocusable( "#displayNone-span", "span with tabindex, display: none" );
	isNotFocusable( "#visibilityHidden-span", "span with tabindex, visibility: hidden" );
});

test( "focusable - natively focusable with various tabindex", function() {
	expect( 4 );

	isFocusable( "#inputTabindex0", "input, tabindex 0" );
	isFocusable( "#inputTabindex10", "input, tabindex 10" );
	isFocusable( "#inputTabindex-1", "input, tabindex -1" );
	isFocusable( "#inputTabindex-50", "input, tabindex -50" );
});

test( "focusable - not natively focusable with various tabindex", function() {
	expect( 4 );

	isFocusable( "#spanTabindex0", "span, tabindex 0" );
	isFocusable( "#spanTabindex10", "span, tabindex 10" );
	isFocusable( "#spanTabindex-1", "span, tabindex -1" );
	isFocusable( "#spanTabindex-50", "span, tabindex -50" );
});

test( "focusable - area elements", function() {
	expect( 3 );

	isFocusable( "#areaCoordsHref", "coords and href" );
	isFocusable( "#areaNoCoordsHref", "href but no coords" );
	isNotFocusable( "#areaNoImg", "not associated with an image" );
});

test( "focusable - dimensionless parent with overflow", function() {
	expect( 1 );

	isFocusable( "#dimensionlessParent", "input" );
});

test( "tabbable - visible, enabled elements", function() {
	expect( 18 );

	isNotTabbable( "#formNoTabindex", "form" );
	isTabbable( "#formTabindex", "form with tabindex" );
	isTabbable( "#visibleAncestor-inputTypeNone", "input, no type" );
	isTabbable( "#visibleAncestor-inputTypeText", "input, type text" );
	isTabbable( "#visibleAncestor-inputTypeCheckbox", "input, type checkbox" );
	isTabbable( "#visibleAncestor-inputTypeRadio", "input, type radio" );
	isTabbable( "#visibleAncestor-inputTypeButton", "input, type button" );
	isNotTabbable( "#visibleAncestor-inputTypeHidden", "input, type hidden" );
	isTabbable( "#visibleAncestor-button", "button" );
	isTabbable( "#visibleAncestor-select", "select" );
	isTabbable( "#visibleAncestor-textarea", "textarea" );
	isTabbable( "#visibleAncestor-object", "object" );
	isTabbable( "#visibleAncestor-anchorWithHref", "anchor with href" );
	isNotTabbable( "#visibleAncestor-anchorWithoutHref", "anchor without href" );
	isNotTabbable( "#visibleAncestor-span", "span" );
	isNotTabbable( "#visibleAncestor-div", "div" );
	isTabbable( "#visibleAncestor-spanWithTabindex", "span with tabindex" );
	isNotTabbable( "#visibleAncestor-divWithNegativeTabindex", "div with tabindex" );
});

test( "tabbable - disabled elements", function() {
	expect( 9 );

	isNotTabbable( "#disabledElement-inputTypeNone", "input, no type" );
	isNotTabbable( "#disabledElement-inputTypeText", "input, type text" );
	isNotTabbable( "#disabledElement-inputTypeCheckbox", "input, type checkbox" );
	isNotTabbable( "#disabledElement-inputTypeRadio", "input, type radio" );
	isNotTabbable( "#disabledElement-inputTypeButton", "input, type button" );
	isNotTabbable( "#disabledElement-inputTypeHidden", "input, type hidden" );
	isNotTabbable( "#disabledElement-button", "button" );
	isNotTabbable( "#disabledElement-select", "select" );
	isNotTabbable( "#disabledElement-textarea", "textarea" );
});

test( "tabbable - hidden styles", function() {
	expect( 8 );

	isNotTabbable( "#displayNoneAncestor-input", "input, display: none parent" );
	isNotTabbable( "#displayNoneAncestor-span", "span with tabindex, display: none parent" );

	isNotTabbable( "#visibilityHiddenAncestor-input", "input, visibility: hidden parent" );
	isNotTabbable( "#visibilityHiddenAncestor-span", "span with tabindex, visibility: hidden parent" );

	isNotTabbable( "#displayNone-input", "input, display: none" );
	isNotTabbable( "#visibilityHidden-input", "input, visibility: hidden" );

	isNotTabbable( "#displayNone-span", "span with tabindex, display: none" );
	isNotTabbable( "#visibilityHidden-span", "span with tabindex, visibility: hidden" );
});

test( "tabbable -  natively tabbable with various tabindex", function() {
	expect( 4 );

	isTabbable( "#inputTabindex0", "input, tabindex 0" );
	isTabbable( "#inputTabindex10", "input, tabindex 10" );
	isNotTabbable( "#inputTabindex-1", "input, tabindex -1" );
	isNotTabbable( "#inputTabindex-50", "input, tabindex -50" );
});

test( "tabbable -  not natively tabbable with various tabindex", function() {
	expect( 4 );

	isTabbable( "#spanTabindex0", "span, tabindex 0" );
	isTabbable( "#spanTabindex10", "span, tabindex 10" );
	isNotTabbable( "#spanTabindex-1", "span, tabindex -1" );
	isNotTabbable( "#spanTabindex-50", "span, tabindex -50" );
});

test( "tabbable - area elements", function() {
	expect( 3 );

	isTabbable( "#areaCoordsHref", "coords and href" );
	isTabbable( "#areaNoCoordsHref", "href but no coords" );
	isNotTabbable( "#areaNoImg", "not associated with an image" );
});

test( "tabbable - dimensionless parent with overflow", function() {
	expect( 1 );

	isTabbable( "#dimensionlessParent", "input" );
});

})( jQuery );
