Method test_keywords

Lib/test/test_descr.py:3194–3219

(self)

        ##     os_helper.unlink(os_helper.TESTFN)

    def test_keywords(self):
        # Testing keyword args to basic type constructors ...
        with self.assertRaisesRegex(TypeError, 'keyword argument'):
            int(x=1)
        with self.assertRaisesRegex(TypeError, 'keyword argument'):
            float(x=2)
        with self.assertRaisesRegex(TypeError, 'keyword argument'):
            bool(x=2)
        self.assertEqual(complex(imag=42, real=666), complex(666, 42))
        self.assertEqual(str(object=500), '500')
        self.assertEqual(str(object=b'abc', errors='strict'), 'abc')
        with self.assertRaisesRegex(TypeError, 'keyword argument'):
            tuple(sequence=range(3))
        with self.assertRaisesRegex(TypeError, 'keyword argument'):
            list(sequence=(0, 1, 2))
        # note: as of Python 2.3, dict() no longer has an "items" keyword arg

        for constructor in (int, float, int, complex, str, str,
                            tuple, list):
            try:
                constructor(bogus_keyword_arg=1)
            except TypeError:
                pass
            else:
                self.fail("expected TypeError from bogus keyword argument to %r"
                            % constructor)

    def test_str_subclass_as_dict_key(self):
        # Testing a str subclass used as dict key ..