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Improve str() and object.__str__() documentation (issue #13538).

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This commit is contained in:
Chris Jerdonek 2012-11-20 17:31:02 -08:00
parent 39bdad813a
commit 17fc44c9b3
7 changed files with 96 additions and 44 deletions
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20
Lib/test/test_unicode.py
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@ -1100,6 +1100,26 @@ class UnicodeTest(string_tests.CommonTest,
self.assertRaises(TypeError, str, 42, 42, 42)
def test_constructor_keyword_args(self):
"""Pass various keyword argument combinations to the constructor."""
# The object argument can be passed as a keyword.
self.assertEqual(str(object='foo'), 'foo')
self.assertEqual(str(object=b'foo', encoding='utf-8'), 'foo')
# The errors argument without encoding triggers "decode" mode.
self.assertEqual(str(b'foo', errors='strict'), 'foo') # not "b'foo'"
self.assertEqual(str(object=b'foo', errors='strict'), 'foo')
def test_constructor_defaults(self):
"""Check the constructor argument defaults."""
# The object argument defaults to '' or b''.
self.assertEqual(str(), '')
self.assertEqual(str(errors='strict'), '')
utf8_cent = '¢'.encode('utf-8')
# The encoding argument defaults to utf-8.
self.assertEqual(str(utf8_cent, errors='strict'), '¢')
# The errors argument defaults to strict.
self.assertRaises(UnicodeDecodeError, str, utf8_cent, encoding='ascii')
def test_codecs_utf7(self):
utfTests = [
('A\u2262\u0391.', b'A+ImIDkQ.'), # RFC2152 example