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Issue #21118: Add more unit tests on str.translate()

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This commit is contained in:
Victor Stinner 2014-04-05 00:17:51 +02:00
parent 8a4422e78d
commit 5a29f25843
1 changed files with 20 additions and 0 deletions
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20
Lib/test/test_unicode.py
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@ -251,6 +251,7 @@ class UnicodeTest(string_tests.CommonTest,
{ord('a'): None, ord('b'): ''})
self.checkequalnofix('xyyx', 'xzx', 'translate',
{ord('z'): 'yy'})
# this needs maketrans()
self.checkequalnofix('abababc', 'abababc', 'translate',
{'b': '<i>'})
@ -260,6 +261,25 @@ class UnicodeTest(string_tests.CommonTest,
tbl = self.type2test.maketrans('abc', 'xyz', 'd')
self.checkequalnofix('xyzzy', 'abdcdcbdddd', 'translate', tbl)
# various tests switching from ASCII to latin1 or the opposite;
# same length, remove a letter, or replace with a longer string.
self.assertEqual("[a]".translate(str.maketrans('a', 'X')),
"[X]")
self.assertEqual("[a]".translate(str.maketrans({'a': 'X'})),
"[X]")
self.assertEqual("[a]".translate(str.maketrans({'a': None})),
"[]")
self.assertEqual("[a]".translate(str.maketrans({'a': 'XXX'})),
"[XXX]")
self.assertEqual("[a]".translate(str.maketrans({'a': '\xe9'})),
"[\xe9]")
self.assertEqual("[a]".translate(str.maketrans({'a': '<\xe9>'})),
"[<\xe9>]")
self.assertEqual("[\xe9]".translate(str.maketrans({'\xe9': 'a'})),
"[a]")
self.assertEqual("[\xe9]".translate(str.maketrans({'\xe9': None})),
"[]")
self.assertRaises(TypeError, self.type2test.maketrans)
self.assertRaises(ValueError, self.type2test.maketrans, 'abc', 'defg')
self.assertRaises(TypeError, self.type2test.maketrans, 2, 'def')