diff options
Diffstat (limited to 'Lib/test/string_tests.py')
| -rw-r--r-- | Lib/test/string_tests.py | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/Lib/test/string_tests.py b/Lib/test/string_tests.py index aab98c2..489af20 100644 --- a/Lib/test/string_tests.py +++ b/Lib/test/string_tests.py @@ -243,29 +243,72 @@ class CommonTest(unittest.TestCase): self.checkequal(['a', 'b', 'c d'], 'a b c d', 'split', None, 2) self.checkequal(['a', 'b', 'c', 'd'], 'a b c d', 'split', None, 3) self.checkequal(['a', 'b', 'c', 'd'], 'a b c d', 'split', None, 4) + self.checkequal(['a', 'b', 'c', 'd'], 'a b c d', 'split', None, + sys.maxint-1) self.checkequal(['a b c d'], 'a b c d', 'split', None, 0) + self.checkequal(['a b c d'], ' a b c d', 'split', None, 0) self.checkequal(['a', 'b', 'c d'], 'a b c d', 'split', None, 2) + self.checkequal([], ' ', 'split') + self.checkequal(['a'], ' a ', 'split') + self.checkequal(['a', 'b'], ' a b ', 'split') + self.checkequal(['a', 'b '], ' a b ', 'split', None, 1) + self.checkequal(['a', 'b c '], ' a b c ', 'split', None, 1) + self.checkequal(['a', 'b', 'c '], ' a b c ', 'split', None, 2) + self.checkequal(['a', 'b'], '\n\ta \t\r b \v ', 'split') + aaa = ' a '*20 + self.checkequal(['a']*20, aaa, 'split') + self.checkequal(['a'] + [aaa[4:]], aaa, 'split', None, 1) + self.checkequal(['a']*19 + ['a '], aaa, 'split', None, 19) + # by a char self.checkequal(['a', 'b', 'c', 'd'], 'a|b|c|d', 'split', '|') + self.checkequal(['a|b|c|d'], 'a|b|c|d', 'split', '|', 0) self.checkequal(['a', 'b|c|d'], 'a|b|c|d', 'split', '|', 1) self.checkequal(['a', 'b', 'c|d'], 'a|b|c|d', 'split', '|', 2) self.checkequal(['a', 'b', 'c', 'd'], 'a|b|c|d', 'split', '|', 3) self.checkequal(['a', 'b', 'c', 'd'], 'a|b|c|d', 'split', '|', 4) + self.checkequal(['a', 'b', 'c', 'd'], 'a|b|c|d', 'split', '|', + sys.maxint-2) self.checkequal(['a|b|c|d'], 'a|b|c|d', 'split', '|', 0) self.checkequal(['a', '', 'b||c||d'], 'a||b||c||d', 'split', '|', 2) self.checkequal(['endcase ', ''], 'endcase |', 'split', '|') + self.checkequal(['', ' startcase'], '| startcase', 'split', '|') + self.checkequal(['', 'bothcase', ''], '|bothcase|', 'split', '|') self.checkequal(['a', '', 'b\x00c\x00d'], 'a\x00\x00b\x00c\x00d', 'split', '\x00', 2) + self.checkequal(['a']*20, ('a|'*20)[:-1], 'split', '|') + self.checkequal(['a']*15 +['a|a|a|a|a'], + ('a|'*20)[:-1], 'split', '|', 15) + # by string self.checkequal(['a', 'b', 'c', 'd'], 'a//b//c//d', 'split', '//') self.checkequal(['a', 'b//c//d'], 'a//b//c//d', 'split', '//', 1) self.checkequal(['a', 'b', 'c//d'], 'a//b//c//d', 'split', '//', 2) self.checkequal(['a', 'b', 'c', 'd'], 'a//b//c//d', 'split', '//', 3) self.checkequal(['a', 'b', 'c', 'd'], 'a//b//c//d', 'split', '//', 4) + self.checkequal(['a', 'b', 'c', 'd'], 'a//b//c//d', 'split', '//', + sys.maxint-10) self.checkequal(['a//b//c//d'], 'a//b//c//d', 'split', '//', 0) self.checkequal(['a', '', 'b////c////d'], 'a////b////c////d', 'split', '//', 2) self.checkequal(['endcase ', ''], 'endcase test', 'split', 'test') + self.checkequal(['', ' begincase'], 'test begincase', 'split', 'test') + self.checkequal(['', ' bothcase ', ''], 'test bothcase test', + 'split', 'test') + self.checkequal(['a', 'bc'], 'abbbc', 'split', 'bb') + self.checkequal(['', ''], 'aaa', 'split', 'aaa') + self.checkequal(['aaa'], 'aaa', 'split', 'aaa', 0) + self.checkequal(['ab', 'ab'], 'abbaab', 'split', 'ba') + self.checkequal(['aaaa'], 'aaaa', 'split', 'aab') + self.checkequal([''], '', 'split', 'aaa') + self.checkequal(['aa'], 'aa', 'split', 'aaa') + self.checkequal(['A', 'bobb'], 'Abbobbbobb', 'split', 'bbobb') + self.checkequal(['A', 'B', ''], 'AbbobbBbbobb', 'split', 'bbobb') + + self.checkequal(['a']*20, ('aBLAH'*20)[:-4], 'split', 'BLAH') + self.checkequal(['a']*20, ('aBLAH'*20)[:-4], 'split', 'BLAH', 19) + self.checkequal(['a']*18 + ['aBLAHa'], ('aBLAH'*20)[:-4], + 'split', 'BLAH', 18) # mixed use of str and unicode self.checkequal([u'a', u'b', u'c d'], 'a b c d', 'split', u' ', 2) @@ -273,6 +316,10 @@ class CommonTest(unittest.TestCase): # argument type self.checkraises(TypeError, 'hello', 'split', 42, 42, 42) + # null case + self.checkraises(ValueError, 'hello', 'split', '') + self.checkraises(ValueError, 'hello', 'split', '', 0) + def test_rsplit(self): self.checkequal(['this', 'is', 'the', 'rsplit', 'function'], 'this is the rsplit function', 'rsplit') @@ -283,29 +330,75 @@ class CommonTest(unittest.TestCase): self.checkequal(['a b', 'c', 'd'], 'a b c d', 'rsplit', None, 2) self.checkequal(['a', 'b', 'c', 'd'], 'a b c d', 'rsplit', None, 3) self.checkequal(['a', 'b', 'c', 'd'], 'a b c d', 'rsplit', None, 4) + self.checkequal(['a', 'b', 'c', 'd'], 'a b c d', 'rsplit', None, + sys.maxint-20) self.checkequal(['a b c d'], 'a b c d', 'rsplit', None, 0) + self.checkequal(['a b c d'], 'a b c d ', 'rsplit', None, 0) self.checkequal(['a b', 'c', 'd'], 'a b c d', 'rsplit', None, 2) + self.checkequal([], ' ', 'rsplit') + self.checkequal(['a'], ' a ', 'rsplit') + self.checkequal(['a', 'b'], ' a b ', 'rsplit') + self.checkequal([' a', 'b'], ' a b ', 'rsplit', None, 1) + self.checkequal([' a b','c'], ' a b c ', 'rsplit', + None, 1) + self.checkequal([' a', 'b', 'c'], ' a b c ', 'rsplit', + None, 2) + self.checkequal(['a', 'b'], '\n\ta \t\r b \v ', 'rsplit', None, 88) + aaa = ' a '*20 + self.checkequal(['a']*20, aaa, 'rsplit') + self.checkequal([aaa[:-4]] + ['a'], aaa, 'rsplit', None, 1) + self.checkequal([' a a'] + ['a']*18, aaa, 'rsplit', None, 18) + + # by a char self.checkequal(['a', 'b', 'c', 'd'], 'a|b|c|d', 'rsplit', '|') self.checkequal(['a|b|c', 'd'], 'a|b|c|d', 'rsplit', '|', 1) self.checkequal(['a|b', 'c', 'd'], 'a|b|c|d', 'rsplit', '|', 2) self.checkequal(['a', 'b', 'c', 'd'], 'a|b|c|d', 'rsplit', '|', 3) self.checkequal(['a', 'b', 'c', 'd'], 'a|b|c|d', 'rsplit', '|', 4) + self.checkequal(['a', 'b', 'c', 'd'], 'a|b|c|d', 'rsplit', '|', + sys.maxint-100) self.checkequal(['a|b|c|d'], 'a|b|c|d', 'rsplit', '|', 0) self.checkequal(['a||b||c', '', 'd'], 'a||b||c||d', 'rsplit', '|', 2) self.checkequal(['', ' begincase'], '| begincase', 'rsplit', '|') + self.checkequal(['endcase ', ''], 'endcase |', 'rsplit', '|') + self.checkequal(['', 'bothcase', ''], '|bothcase|', 'rsplit', '|') + self.checkequal(['a\x00\x00b', 'c', 'd'], 'a\x00\x00b\x00c\x00d', 'rsplit', '\x00', 2) + self.checkequal(['a']*20, ('a|'*20)[:-1], 'rsplit', '|') + self.checkequal(['a|a|a|a|a']+['a']*15, + ('a|'*20)[:-1], 'rsplit', '|', 15) + # by string self.checkequal(['a', 'b', 'c', 'd'], 'a//b//c//d', 'rsplit', '//') self.checkequal(['a//b//c', 'd'], 'a//b//c//d', 'rsplit', '//', 1) self.checkequal(['a//b', 'c', 'd'], 'a//b//c//d', 'rsplit', '//', 2) self.checkequal(['a', 'b', 'c', 'd'], 'a//b//c//d', 'rsplit', '//', 3) self.checkequal(['a', 'b', 'c', 'd'], 'a//b//c//d', 'rsplit', '//', 4) + self.checkequal(['a', 'b', 'c', 'd'], 'a//b//c//d', 'rsplit', '//', + sys.maxint-5) self.checkequal(['a//b//c//d'], 'a//b//c//d', 'rsplit', '//', 0) self.checkequal(['a////b////c', '', 'd'], 'a////b////c////d', 'rsplit', '//', 2) self.checkequal(['', ' begincase'], 'test begincase', 'rsplit', 'test') + self.checkequal(['endcase ', ''], 'endcase test', 'rsplit', 'test') + self.checkequal(['', ' bothcase ', ''], 'test bothcase test', + 'rsplit', 'test') + self.checkequal(['ab', 'c'], 'abbbc', 'rsplit', 'bb') + self.checkequal(['', ''], 'aaa', 'rsplit', 'aaa') + self.checkequal(['aaa'], 'aaa', 'rsplit', 'aaa', 0) + self.checkequal(['ab', 'ab'], 'abbaab', 'rsplit', 'ba') + self.checkequal(['aaaa'], 'aaaa', 'rsplit', 'aab') + self.checkequal([''], '', 'rsplit', 'aaa') + self.checkequal(['aa'], 'aa', 'rsplit', 'aaa') + self.checkequal(['bbob', 'A'], 'bbobbbobbA', 'rsplit', 'bbobb') + self.checkequal(['', 'B', 'A'], 'bbobbBbbobbA', 'rsplit', 'bbobb') + + self.checkequal(['a']*20, ('aBLAH'*20)[:-4], 'rsplit', 'BLAH') + self.checkequal(['a']*20, ('aBLAH'*20)[:-4], 'rsplit', 'BLAH', 19) + self.checkequal(['aBLAHa'] + ['a']*18, ('aBLAH'*20)[:-4], + 'rsplit', 'BLAH', 18) # mixed use of str and unicode self.checkequal([u'a b', u'c', u'd'], 'a b c d', 'rsplit', u' ', 2) @@ -313,6 +406,10 @@ class CommonTest(unittest.TestCase): # argument type self.checkraises(TypeError, 'hello', 'rsplit', 42, 42, 42) + # null case + self.checkraises(ValueError, 'hello', 'rsplit', '') + self.checkraises(ValueError, 'hello', 'rsplit', '', 0) + def test_strip(self): self.checkequal('hello', ' hello ', 'strip') self.checkequal('hello ', ' hello ', 'lstrip') @@ -376,6 +473,158 @@ class CommonTest(unittest.TestCase): self.checkraises(TypeError, 'hello', 'swapcase', 42) def test_replace(self): + EQ = self.checkequal + + # Operations on the empty string + EQ("", "", "replace", "", "") + + #EQ("A", "", "replace", "", "A") + # That was the correct result; this is the result we actually get + # now (for str, but not for unicode): + #EQ("", "", "replace", "", "A") + + EQ("", "", "replace", "A", "") + EQ("", "", "replace", "A", "A") + EQ("", "", "replace", "", "", 100) + EQ("", "", "replace", "", "", sys.maxint) + + # interleave (from=="", 'to' gets inserted everywhere) + EQ("A", "A", "replace", "", "") + EQ("*A*", "A", "replace", "", "*") + EQ("*1A*1", "A", "replace", "", "*1") + EQ("*-#A*-#", "A", "replace", "", "*-#") + EQ("*-A*-A*-", "AA", "replace", "", "*-") + EQ("*-A*-A*-", "AA", "replace", "", "*-", -1) + EQ("*-A*-A*-", "AA", "replace", "", "*-", sys.maxint) + EQ("*-A*-A*-", "AA", "replace", "", "*-", 4) + EQ("*-A*-A*-", "AA", "replace", "", "*-", 3) + EQ("*-A*-A", "AA", "replace", "", "*-", 2) + EQ("*-AA", "AA", "replace", "", "*-", 1) + EQ("AA", "AA", "replace", "", "*-", 0) + + # single character deletion (from=="A", to=="") + EQ("", "A", "replace", "A", "") + EQ("", "AAA", "replace", "A", "") + EQ("", "AAA", "replace", "A", "", -1) + EQ("", "AAA", "replace", "A", "", sys.maxint) + EQ("", "AAA", "replace", "A", "", 4) + EQ("", "AAA", "replace", "A", "", 3) + EQ("A", "AAA", "replace", "A", "", 2) + EQ("AA", "AAA", "replace", "A", "", 1) + EQ("AAA", "AAA", "replace", "A", "", 0) + EQ("", "AAAAAAAAAA", "replace", "A", "") + EQ("BCD", "ABACADA", "replace", "A", "") + EQ("BCD", "ABACADA", "replace", "A", "", -1) + EQ("BCD", "ABACADA", "replace", "A", "", sys.maxint) + EQ("BCD", "ABACADA", "replace", "A", "", 5) + EQ("BCD", "ABACADA", "replace", "A", "", 4) + EQ("BCDA", "ABACADA", "replace", "A", "", 3) + EQ("BCADA", "ABACADA", "replace", "A", "", 2) + EQ("BACADA", "ABACADA", "replace", "A", "", 1) + EQ("ABACADA", "ABACADA", "replace", "A", "", 0) + EQ("BCD", "ABCAD", "replace", "A", "") + EQ("BCD", "ABCADAA", "replace", "A", "") + EQ("BCD", "BCD", "replace", "A", "") + EQ("*************", "*************", "replace", "A", "") + EQ("^A^", "^"+"A"*1000+"^", "replace", "A", "", 999) + + # substring deletion (from=="the", to=="") + EQ("", "the", "replace", "the", "") + EQ("ater", "theater", "replace", "the", "") + EQ("", "thethe", "replace", "the", "") + EQ("", "thethethethe", "replace", "the", "") + EQ("aaaa", "theatheatheathea", "replace", "the", "") + EQ("that", "that", "replace", "the", "") + EQ("thaet", "thaet", "replace", "the", "") + EQ("here and re", "here and there", "replace", "the", "") + EQ("here and re and re", "here and there and there", + "replace", "the", "", sys.maxint) + EQ("here and re and re", "here and there and there", + "replace", "the", "", -1) + EQ("here and re and re", "here and there and there", + "replace", "the", "", 3) + EQ("here and re and re", "here and there and there", + "replace", "the", "", 2) + EQ("here and re and there", "here and there and there", + "replace", "the", "", 1) + EQ("here and there and there", "here and there and there", + "replace", "the", "", 0) + EQ("here and re and re", "here and there and there", "replace", "the", "") + + EQ("abc", "abc", "replace", "the", "") + EQ("abcdefg", "abcdefg", "replace", "the", "") + + # substring deletion (from=="bob", to=="") + EQ("bob", "bbobob", "replace", "bob", "") + EQ("bobXbob", "bbobobXbbobob", "replace", "bob", "") + EQ("aaaaaaa", "aaaaaaabob", "replace", "bob", "") + EQ("aaaaaaa", "aaaaaaa", "replace", "bob", "") + + # single character replace in place (len(from)==len(to)==1) + EQ("Who goes there?", "Who goes there?", "replace", "o", "o") + EQ("WhO gOes there?", "Who goes there?", "replace", "o", "O") + EQ("WhO gOes there?", "Who goes there?", "replace", "o", "O", sys.maxint) + EQ("WhO gOes there?", "Who goes there?", "replace", "o", "O", -1) + EQ("WhO gOes there?", "Who goes there?", "replace", "o", "O", 3) + EQ("WhO gOes there?", "Who goes there?", "replace", "o", "O", 2) + EQ("WhO goes there?", "Who goes there?", "replace", "o", "O", 1) + EQ("Who goes there?", "Who goes there?", "replace", "o", "O", 0) + + EQ("Who goes there?", "Who goes there?", "replace", "a", "q") + EQ("who goes there?", "Who goes there?", "replace", "W", "w") + EQ("wwho goes there?ww", "WWho goes there?WW", "replace", "W", "w") + EQ("Who goes there!", "Who goes there?", "replace", "?", "!") + EQ("Who goes there!!", "Who goes there??", "replace", "?", "!") + + EQ("Who goes there?", "Who goes there?", "replace", ".", "!") + + # substring replace in place (len(from)==len(to) > 1) + EQ("Th** ** a t**sue", "This is a tissue", "replace", "is", "**") + EQ("Th** ** a t**sue", "This is a tissue", "replace", "is", "**", sys.maxint) + EQ("Th** ** a t**sue", "This is a tissue", "replace", "is", "**", -1) + EQ("Th** ** a t**sue", "This is a tissue", "replace", "is", "**", 4) + EQ("Th** ** a t**sue", "This is a tissue", "replace", "is", "**", 3) + EQ("Th** ** a tissue", "This is a tissue", "replace", "is", "**", 2) + EQ("Th** is a tissue", "This is a tissue", "replace", "is", "**", 1) + EQ("This is a tissue", "This is a tissue", "replace", "is", "**", 0) + EQ("cobob", "bobob", "replace", "bob", "cob") + EQ("cobobXcobocob", "bobobXbobobob", "replace", "bob", "cob") + EQ("bobob", "bobob", "replace", "bot", "bot") + + # replace single character (len(from)==1, len(to)>1) + EQ("ReyKKjaviKK", "Reykjavik", "replace", "k", "KK") + EQ("ReyKKjaviKK", "Reykjavik", "replace", "k", "KK", -1) + EQ("ReyKKjaviKK", "Reykjavik", "replace", "k", "KK", sys.maxint) + EQ("ReyKKjaviKK", "Reykjavik", "replace", "k", "KK", 2) + EQ("ReyKKjavik", "Reykjavik", "replace", "k", "KK", 1) + EQ("Reykjavik", "Reykjavik", "replace", "k", "KK", 0) + EQ("A----B----C----", "A.B.C.", "replace", ".", "----") + + EQ("Reykjavik", "Reykjavik", "replace", "q", "KK") + + # replace substring (len(from)>1, len(to)!=len(from)) + EQ("ham, ham, eggs and ham", "spam, spam, eggs and spam", + "replace", "spam", "ham") + EQ("ham, ham, eggs and ham", "spam, spam, eggs and spam", + "replace", "spam", "ham", sys.maxint) + EQ("ham, ham, eggs and ham", "spam, spam, eggs and spam", + "replace", "spam", "ham", -1) + EQ("ham, ham, eggs and ham", "spam, spam, eggs and spam", + "replace", "spam", "ham", 4) + EQ("ham, ham, eggs and ham", "spam, spam, eggs and spam", + "replace", "spam", "ham", 3) + EQ("ham, ham, eggs and spam", "spam, spam, eggs and spam", + "replace", "spam", "ham", 2) + EQ("ham, spam, eggs and spam", "spam, spam, eggs and spam", + "replace", "spam", "ham", 1) + EQ("spam, spam, eggs and spam", "spam, spam, eggs and spam", + "replace", "spam", "ham", 0) + + EQ("bobob", "bobobob", "replace", "bobob", "bob") + EQ("bobobXbobob", "bobobobXbobobob", "replace", "bobob", "bob") + EQ("BOBOBOB", "BOBOBOB", "replace", "bob", "bobby") + + # self.checkequal('one@two!three!', 'one!two!three!', 'replace', '!', '@', 1) self.checkequal('onetwothree', 'one!two!three!', 'replace', '!', '') self.checkequal('one@two@three!', 'one!two!three!', 'replace', '!', '@', 2) @@ -403,6 +652,15 @@ class CommonTest(unittest.TestCase): self.checkraises(TypeError, 'hello', 'replace', 42, 'h') self.checkraises(TypeError, 'hello', 'replace', 'h', 42) + def test_replace_overflow(self): + # Check for overflow checking on 32 bit machines + if sys.maxint != 2147483647: + return + A2_16 = "A" * (2**16) + self.checkraises(OverflowError, A2_16, "replace", "", A2_16) + self.checkraises(OverflowError, A2_16, "replace", "A", A2_16) + self.checkraises(OverflowError, A2_16, "replace", "AA", A2_16+A2_16) + def test_zfill(self): self.checkequal('123', '123', 'zfill', 2) self.checkequal('123', '123', 'zfill', 3) @@ -720,6 +978,55 @@ class MixinStrUnicodeUserStringTest: else: self.checkcall(format, "__mod__", value) + def test_inplace_rewrites(self): + # Check that strings don't copy and modify cached single-character strings + self.checkequal('a', 'A', 'lower') + self.checkequal(True, 'A', 'isupper') + self.checkequal('A', 'a', 'upper') + self.checkequal(True, 'a', 'islower') + + self.checkequal('a', 'A', 'replace', 'A', 'a') + self.checkequal(True, 'A', 'isupper') + + self.checkequal('A', 'a', 'capitalize') + self.checkequal(True, 'a', 'islower') + + self.checkequal('A', 'a', 'swapcase') + self.checkequal(True, 'a', 'islower') + + self.checkequal('A', 'a', 'title') + self.checkequal(True, 'a', 'islower') + + def test_partition(self): + + self.checkequal(('this is the par', 'ti', 'tion method'), + 'this is the partition method', 'partition', 'ti') + + # from raymond's original specification + S = 'http://www.python.org' + self.checkequal(('http', '://', 'www.python.org'), S, 'partition', '://') + self.checkequal(('http://www.python.org', '', ''), S, 'partition', '?') + self.checkequal(('', 'http://', 'www.python.org'), S, 'partition', 'http://') + self.checkequal(('http://www.python.', 'org', ''), S, 'partition', 'org') + + self.checkraises(ValueError, S, 'partition', '') + self.checkraises(TypeError, S, 'partition', None) + + def test_rpartition(self): + + self.checkequal(('this is the rparti', 'ti', 'on method'), + 'this is the rpartition method', 'rpartition', 'ti') + + # from raymond's original specification + S = 'http://www.python.org' + self.checkequal(('http', '://', 'www.python.org'), S, 'rpartition', '://') + self.checkequal(('http://www.python.org', '', ''), S, 'rpartition', '?') + self.checkequal(('', 'http://', 'www.python.org'), S, 'rpartition', 'http://') + self.checkequal(('http://www.python.', 'org', ''), S, 'rpartition', 'org') + + self.checkraises(ValueError, S, 'rpartition', '') + self.checkraises(TypeError, S, 'rpartition', None) + class MixinStrStringUserStringTest: # Additional tests for 8bit strings, i.e. str, UserString and |