view Lib/test/string_tests.py @ 17322:bd110eadc19a legacy-trunk

One-liner critical fix from Jim Fulton: Eric's string-method crusade got the order backwards in a line (for .find()).
author Tim Peters <tim.peters@gmail.com>
date Thu, 05 Apr 2001 22:26:23 +0000
parents eee67a84e5fa
children f465cae301ee
line wrap: on
line source

"""Common tests shared by test_string and test_userstring"""

import string

transtable = '\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037 !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`xyzdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377'

from UserList import UserList

class Sequence:
    def __init__(self): self.seq = 'wxyz'
    def __len__(self): return len(self.seq)
    def __getitem__(self, i): return self.seq[i]

class BadSeq1(Sequence):
    def __init__(self): self.seq = [7, 'hello', 123L]

class BadSeq2(Sequence):
    def __init__(self): self.seq = ['a', 'b', 'c']
    def __len__(self): return 8

def run_module_tests(test):
    """Run all tests that exercise a function in the string module"""

    test('atoi', " 1 ", 1)
    test('atoi', " 1x", ValueError)
    test('atoi', " x1 ", ValueError)
    test('atol', "  1  ", 1L)
    test('atol', "  1x ", ValueError)
    test('atol', "  x1 ", ValueError)
    test('atof', "  1  ", 1.0)
    test('atof', "  1x ", ValueError)
    test('atof', "  x1 ", ValueError)

    test('maketrans', 'abc', transtable, 'xyz')
    test('maketrans', 'abc', ValueError, 'xyzq')

    # join now works with any sequence type
    test('join', ['a', 'b', 'c', 'd'], 'a b c d')
    test('join', ('a', 'b', 'c', 'd'), 'abcd', '')
    test('join', Sequence(), 'w x y z')
    test('join', 7, TypeError)

    test('join', BadSeq1(), TypeError)
    test('join', BadSeq2(), 'a b c')

    # try a few long ones
    print ":".join(['x' * 100] * 100)
    print ":".join(('x' * 100,) * 100)


def run_method_tests(test):
    """Run all tests that exercise a method of a string object"""

    test('capitalize', ' hello ', ' hello ')
    test('capitalize', 'hello ', 'Hello ')
    test('capitalize', 'aaaa', 'Aaaa')
    test('capitalize', 'AaAa', 'Aaaa')

    test('count', 'aaa', 3, 'a')
    test('count', 'aaa', 0, 'b')

    test('find', 'abcdefghiabc', 0, 'abc')
    test('find', 'abcdefghiabc', 9, 'abc', 1)
    test('find', 'abcdefghiabc', -1, 'def', 4)
    test('rfind', 'abcdefghiabc', 9, 'abc')
    test('lower', 'HeLLo', 'hello')
    test('lower', 'hello', 'hello')
    test('upper', 'HeLLo', 'HELLO')
    test('upper', 'HELLO', 'HELLO')

    test('title', ' hello ', ' Hello ')
    test('title', 'hello ', 'Hello ')
    test('title', "fOrMaT thIs aS titLe String", 'Format This As Title String')
    test('title', "fOrMaT,thIs-aS*titLe;String", 'Format,This-As*Title;String')
    test('title', "getInt", 'Getint')

    test('expandtabs', 'abc\rab\tdef\ng\thi', 'abc\rab      def\ng       hi')
    test('expandtabs', 'abc\rab\tdef\ng\thi', 'abc\rab      def\ng       hi', 8)
    test('expandtabs', 'abc\rab\tdef\ng\thi', 'abc\rab  def\ng   hi', 4)
    test('expandtabs', 'abc\r\nab\tdef\ng\thi', 'abc\r\nab  def\ng   hi', 4)

    test('islower', 'a', 1)
    test('islower', 'A', 0)
    test('islower', '\n', 0)
    test('islower', 'abc', 1)
    test('islower', 'aBc', 0)
    test('islower', 'abc\n', 1)

    test('isupper', 'a', 0)
    test('isupper', 'A', 1)
    test('isupper', '\n', 0)
    test('isupper', 'ABC', 1)
    test('isupper', 'AbC', 0)
    test('isupper', 'ABC\n', 1)

    test('istitle', 'a', 0)
    test('istitle', 'A', 1)
    test('istitle', '\n', 0)
    test('istitle', 'A Titlecased Line', 1)
    test('istitle', 'A\nTitlecased Line', 1)
    test('istitle', 'A Titlecased, Line', 1)
    test('istitle', 'Not a capitalized String', 0)
    test('istitle', 'Not\ta Titlecase String', 0)
    test('istitle', 'Not--a Titlecase String', 0)

    test('isalpha', 'a', 1)
    test('isalpha', 'A', 1)
    test('isalpha', '\n', 0)
    test('isalpha', 'abc', 1)
    test('isalpha', 'aBc123', 0)
    test('isalpha', 'abc\n', 0)

    test('isalnum', 'a', 1)
    test('isalnum', 'A', 1)
    test('isalnum', '\n', 0)
    test('isalnum', '123abc456', 1)
    test('isalnum', 'a1b3c', 1)
    test('isalnum', 'aBc000 ', 0)
    test('isalnum', 'abc\n', 0)

    # join now works with any sequence type
    test('join', ' ', 'a b c d', ['a', 'b', 'c', 'd'])
    test('join', '', 'abcd', ('a', 'b', 'c', 'd'))
    test('join', ' ', 'w x y z', Sequence())
    test('join', 'a', 'abc', ('abc',))
    test('join', 'a', 'z', UserList(['z']))
    test('join', u'.', u'a.b.c', ['a', 'b', 'c'])
    test('join', '.', u'a.b.c', [u'a', 'b', 'c'])
    test('join', '.', u'a.b.c', ['a', u'b', 'c'])
    test('join', '.', u'a.b.c', ['a', 'b', u'c'])
    test('join', '.', TypeError, ['a', u'b', 3])
    for i in [5, 25, 125]:
        test('join', '-', ((('a' * i) + '-') * i)[:-1],
             ['a' * i] * i)

    test('join', ' ', TypeError, BadSeq1())
    test('join', ' ', 'a b c', BadSeq2())

    test('splitlines', "abc\ndef\n\rghi", ['abc', 'def', '', 'ghi'])
    test('splitlines', "abc\ndef\n\r\nghi", ['abc', 'def', '', 'ghi'])
    test('splitlines', "abc\ndef\r\nghi", ['abc', 'def', 'ghi'])
    test('splitlines', "abc\ndef\r\nghi\n", ['abc', 'def', 'ghi'])
    test('splitlines', "abc\ndef\r\nghi\n\r", ['abc', 'def', 'ghi', ''])
    test('splitlines', "\nabc\ndef\r\nghi\n\r", ['', 'abc', 'def', 'ghi', ''])
    test('splitlines', "\nabc\ndef\r\nghi\n\r", ['\n', 'abc\n', 'def\r\n', 'ghi\n', '\r'], 1)

    test('split', 'this is the split function',
         ['this', 'is', 'the', 'split', 'function'])
    test('split', 'a|b|c|d', ['a', 'b', 'c', 'd'], '|')
    test('split', 'a|b|c|d', ['a', 'b', 'c|d'], '|', 2)
    test('split', 'a b c d', ['a', 'b c d'], None, 1)
    test('split', 'a b c d', ['a', 'b', 'c d'], None, 2)
    test('split', 'a b c d', ['a', 'b', 'c', 'd'], None, 3)
    test('split', 'a b c d', ['a', 'b', 'c', 'd'], None, 4)
    test('split', 'a b c d', ['a b c d'], None, 0)
    test('split', 'a  b  c  d', ['a', 'b', 'c  d'], None, 2)
    test('split', 'a b c d ', ['a', 'b', 'c', 'd'])

    test('strip', '   hello   ', 'hello')
    test('lstrip', '   hello   ', 'hello   ')
    test('rstrip', '   hello   ', '   hello')
    test('strip', 'hello', 'hello')

    test('swapcase', 'HeLLo cOmpUteRs', 'hEllO CoMPuTErS')
    test('translate', 'xyzabcdef', 'xyzxyz', transtable, 'def')

    table = string.maketrans('a', 'A')
    test('translate', 'abc', 'Abc', table)
    test('translate', 'xyz', 'xyz', table)

    test('replace', 'one!two!three!', 'one@two!three!', '!', '@', 1)
    test('replace', 'one!two!three!', 'onetwothree', '!', '')
    test('replace', 'one!two!three!', 'one@two@three!', '!', '@', 2)
    test('replace', 'one!two!three!', 'one@two@three@', '!', '@', 3)
    test('replace', 'one!two!three!', 'one@two@three@', '!', '@', 4)
    test('replace', 'one!two!three!', 'one!two!three!', '!', '@', 0)
    test('replace', 'one!two!three!', 'one@two@three@', '!', '@')
    test('replace', 'one!two!three!', 'one!two!three!', 'x', '@')
    test('replace', 'one!two!three!', 'one!two!three!', 'x', '@', 2)

    test('startswith', 'hello', 1, 'he')
    test('startswith', 'hello', 1, 'hello')
    test('startswith', 'hello', 0, 'hello world')
    test('startswith', 'hello', 1, '')
    test('startswith', 'hello', 0, 'ello')
    test('startswith', 'hello', 1, 'ello', 1)
    test('startswith', 'hello', 1, 'o', 4)
    test('startswith', 'hello', 0, 'o', 5)
    test('startswith', 'hello', 1, '', 5)
    test('startswith', 'hello', 0, 'lo', 6)
    test('startswith', 'helloworld', 1, 'lowo', 3)
    test('startswith', 'helloworld', 1, 'lowo', 3, 7)
    test('startswith', 'helloworld', 0, 'lowo', 3, 6)

    test('endswith', 'hello', 1, 'lo')
    test('endswith', 'hello', 0, 'he')
    test('endswith', 'hello', 1, '')
    test('endswith', 'hello', 0, 'hello world')
    test('endswith', 'helloworld', 0, 'worl')
    test('endswith', 'helloworld', 1, 'worl', 3, 9)
    test('endswith', 'helloworld', 1, 'world', 3, 12)
    test('endswith', 'helloworld', 1, 'lowo', 1, 7)
    test('endswith', 'helloworld', 1, 'lowo', 2, 7)
    test('endswith', 'helloworld', 1, 'lowo', 3, 7)
    test('endswith', 'helloworld', 0, 'lowo', 4, 7)
    test('endswith', 'helloworld', 0, 'lowo', 3, 8)
    test('endswith', 'ab', 0, 'ab', 0, 1)
    test('endswith', 'ab', 0, 'ab', 0, 0)