test_codeccallbacks.py 文件源码

def test_fake_error_class(self):
        handlers = [
            codecs.strict_errors,
            codecs.ignore_errors,
            codecs.replace_errors,
            codecs.backslashreplace_errors,
            codecs.xmlcharrefreplace_errors,
        ]
        for cls in UnicodeEncodeError, UnicodeDecodeError, UnicodeTranslateError:
            class FakeUnicodeError(str):
                __class__ = cls
            for handler in handlers:
                self.assertRaises(TypeError, handler, FakeUnicodeError())
            class FakeUnicodeError(Exception):
                __class__ = cls
            for handler in handlers:
                with self.assertRaises((TypeError, FakeUnicodeError)):
                    handler(FakeUnicodeError())