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bpo-41842: Add codecs.unregister() function (GH-22360)

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Add codecs.unregister() and PyCodec_Unregister() functions
to unregister a codec search function.
This commit is contained in:
Hai Shi 2020-09-29 05:41:11 +08:00 • committed by GitHub
parent 24ba3b0df5
commit d332e7b816
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11 changed files with 108 additions and 5 deletions
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12
Lib/test/test_codecs.py
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@ -1641,6 +1641,18 @@ class CodecsModuleTest(unittest.TestCase):
self.assertRaises(TypeError, codecs.register)
self.assertRaises(TypeError, codecs.register, 42)
def test_unregister(self):
name = "nonexistent_codec_name"
search_function = mock.Mock()
codecs.register(search_function)
self.assertRaises(TypeError, codecs.lookup, name)
search_function.assert_called_with(name)
search_function.reset_mock()
codecs.unregister(search_function)
self.assertRaises(LookupError, codecs.lookup, name)
search_function.assert_not_called()
def test_lookup(self):
self.assertRaises(TypeError, codecs.lookup)
self.assertRaises(LookupError, codecs.lookup, "__spam__")