$ time sqlite3 < levenshtein-test.sql 
description                result    
-------------------------  ----------
Empty strings 0 distance:  passed    
'Asia' and 'Kasia' -> 2:   passed    
NULL handled correctly (1  passed    
NULL handled correctly (2  passed    
NULL handled correctly (b  passed    
Maximum length strings:    passed    
Too long strings:          passed    
Random text and zero leng  passed    
Random text and zero leng  passed    
4096 tests:                passed    

real    3m8.456s
user    2m40.302s
sys     0m26.474s

