Method test_codec_lookup_failure

Lib/test/test_codecs.py:3251–3260

(self)

    # http://bugs.python.org/issue19609
    def test_codec_lookup_failure(self):
        msg = "^unknown encoding: {}$".format(self.codec_name)
        with self.assertRaisesRegex(LookupError, msg):
            "str input".encode(self.codec_name)
        with self.assertRaisesRegex(LookupError, msg):
            codecs.encode("str input", self.codec_name)
        with self.assertRaisesRegex(LookupError, msg):
            b"bytes input".decode(self.codec_name)
        with self.assertRaisesRegex(LookupError, msg):
            codecs.decode(b"bytes input", self.codec_name)

    def test_unflagged_non_text_codec_handling(self):
        # The stdlib non-text codecs are now marked so they're