Method test_check_encoding_errors

Lib/test/test_str.py:2641–2699

(self)

            support.check_free_after_iterating(self, reversed, str)

    def test_check_encoding_errors(self):
        # bpo-37388: str(bytes) and str.decode() must check encoding and errors
        # arguments in dev mode
        encodings = ('ascii', 'utf8', 'latin1')
        invalid = 'Boom, Shaka Laka, Boom!'
        code = textwrap.dedent(f'''
            import sys
            encodings = {encodings!r}

            for data in (b'', b'short string'):
                try:
                    str(data, encoding={invalid!r})
                except LookupError:
                    pass
                else:
                    sys.exit(21)

                try:
                    str(data, errors={invalid!r})
                except LookupError:
                    pass
                else:
                    sys.exit(22)

                for encoding in encodings:
                    try:
                        str(data, encoding, errors={invalid!r})
                    except LookupError:
                        pass
                    else:
                        sys.exit(22)

            for data in ('', 'short string'):
                try:
                    data.encode(encoding={invalid!r})
                except LookupError:
                    pass
                else:
                    sys.exit(23)

                try:
                    data.encode(errors={invalid!r})
                except LookupError:
                    pass
                else:
                    sys.exit(24)

                for encoding in encodings:
                    try:
                        data.encode(encoding, errors={invalid!r})
                    except LookupError:
                        pass
                    else:
                        sys.exit(24)

            sys.exit(10)
        ''')
        proc = assert_python_failure('-X', 'dev', '-c', code)