Method test_parse_keyword_spec

Lib/test/test_tools/test_i18n.py:493–528

(self)

        self.assertNotIn('#.', data)

    def test_parse_keyword_spec(self):
        valid = (
            ('foo', ('foo', {'msgid': 0})),
            ('foo:1', ('foo', {'msgid': 0})),
            ('foo:1,2', ('foo', {'msgid': 0, 'msgid_plural': 1})),
            ('foo:1, 2', ('foo', {'msgid': 0, 'msgid_plural': 1})),
            ('foo:1,2c', ('foo', {'msgid': 0, 'msgctxt': 1})),
            ('foo:2c,1', ('foo', {'msgid': 0, 'msgctxt': 1})),
            ('foo:2c ,1', ('foo', {'msgid': 0, 'msgctxt': 1})),
            ('foo:1,2,3c', ('foo', {'msgid': 0, 'msgid_plural': 1, 'msgctxt': 2})),
            ('foo:1, 2, 3c', ('foo', {'msgid': 0, 'msgid_plural': 1, 'msgctxt': 2})),
            ('foo:3c,1,2', ('foo', {'msgid': 0, 'msgid_plural': 1, 'msgctxt': 2})),
        )
        for spec, expected in valid:
            with self.subTest(spec=spec):
                self.assertEqual(parse_spec(spec), expected)
                # test unparse-parse round-trip
                self.assertEqual(parse_spec(unparse_spec(*expected)), expected)

        invalid = (
            ('foo:', "Invalid keyword spec 'foo:': missing argument positions"),
            ('foo:bar', "Invalid keyword spec 'foo:bar': position is not an integer"),
            ('foo:0', "Invalid keyword spec 'foo:0': argument positions must be strictly positive"),
            ('foo:-2', "Invalid keyword spec 'foo:-2': argument positions must be strictly positive"),
            ('foo:1,1', "Invalid keyword spec 'foo:1,1': duplicate positions"),
            ('foo:1,2,1', "Invalid keyword spec 'foo:1,2,1': duplicate positions"),
            ('foo:1c,2,1c', "Invalid keyword spec 'foo:1c,2,1c': duplicate positions"),
            ('foo:1c,2,3c', "Invalid keyword spec 'foo:1c,2,3c': msgctxt can only appear once"),
            ('foo:1,2,3', "Invalid keyword spec 'foo:1,2,3': too many positions"),
            ('foo:1c', "Invalid keyword spec 'foo:1c': msgctxt cannot appear without msgid"),
        )
        for spec, message in invalid:
            with self.subTest(spec=spec):
                with self.assertRaises(ValueError) as cm:
                    parse_spec(spec)
                self.assertEqual(str(cm.exception), message)

    def test_process_keywords(self):
        default_keywords = {name: [spec] for name, spec