test_codecs.py 文件源码

def test_decode_errors(self):
        decode = codecs.raw_unicode_escape_decode
        for c, d in (b'u', 4), (b'U', 4):
            for i in range(d):
                self.assertRaises(UnicodeDecodeError, decode,
                                  b"\\" + c + b"0"*i)
                self.assertRaises(UnicodeDecodeError, decode,
                                  b"[\\" + c + b"0"*i + b"]")
                data = b"[\\" + c + b"0"*i + b"]\\" + c + b"0"*i
                self.assertEqual(decode(data, "ignore"), ("[]", len(data)))
                self.assertEqual(decode(data, "replace"),
                                 ("[\ufffd]\ufffd", len(data)))
        self.assertRaises(UnicodeDecodeError, decode, br"\U00110000")
        self.assertEqual(decode(br"\U00110000", "ignore"), ("", 10))
        self.assertEqual(decode(br"\U00110000", "replace"), ("\ufffd", 10))