Method test_decode_invalid

Lib/test/test_codecs.py:1375–1401

(self)

            self.assertEqual(uni, puny.decode("punycode"))

    def test_decode_invalid(self):
        testcases = [
            (b"xn--w&", "strict", UnicodeDecodeError("punycode", b"", 5, 6, "")),
            (b"&egbpdaj6bu4bxfgehfvwxn", "strict", UnicodeDecodeError("punycode", b"", 0, 1, "")),
            (b"egbpdaj6bu&4bx&fgehfvwxn", "strict", UnicodeDecodeError("punycode", b"", 10, 11, "")),
            (b"egbpdaj6bu4bxfgehfvwxn&", "strict", UnicodeDecodeError("punycode", b"", 22, 23, "")),
            (b"\xFFProprostnemluvesky-uyb24dma41a", "strict", UnicodeDecodeError("ascii", b"", 0, 1, "")),
            (b"Pro\xFFprostnemluvesky-uyb24dma41a", "strict", UnicodeDecodeError("ascii", b"", 3, 4, "")),
            (b"Proprost&nemluvesky-uyb24&dma41a", "strict", UnicodeDecodeError("punycode", b"", 25, 26, "")),
            (b"Proprostnemluvesky&-&uyb24dma41a", "strict", UnicodeDecodeError("punycode", b"", 20, 21, "")),
            (b"Proprostnemluvesky-&uyb24dma41a", "strict", UnicodeDecodeError("punycode", b"", 19, 20, "")),
            (b"Proprostnemluvesky-uyb24d&ma41a", "strict", UnicodeDecodeError("punycode", b"", 25, 26, "")),
            (b"Proprostnemluvesky-uyb24dma41a&", "strict", UnicodeDecodeError("punycode", b"", 30, 31, "")),
            (b"xn--w&", "ignore", "xn-"),
        ]
        for puny, errors, expected in testcases:
            with self.subTest(puny=puny, errors=errors):
                if isinstance(expected, Exception):
                    with self.assertRaises(UnicodeDecodeError) as cm:
                        puny.decode("punycode", errors)
                    exc = cm.exception
                    self.assertEqual(exc.encoding, expected.encoding)
                    self.assertEqual(exc.object, puny)
                    self.assertEqual(exc.start, expected.start)
                    self.assertEqual(exc.end, expected.end)
                else:
                    self.assertEqual(puny.decode("punycode", errors), expected)


# From http://www.gnu.org/software/libidn/draft-josefsson-idn-test-vectors.html