Method test_placeholders_kw_restriction

Lib/test/test_functools.py:271–280

(self)

        self.assertEqual(p2(1), ((1, 0), {}))

    def test_placeholders_kw_restriction(self):
        PH = self.module.Placeholder
        with self.assertRaisesRegex(TypeError, "Placeholder"):
            self.partial(capture, a=PH)
        # Passes, as checks via `is` and not `eq`
        p = self.partial(capture, a=ALWAYS_EQ)
        actual_args, actual_kwds = p()
        self.assertEqual(actual_args, ())
        self.assertEqual(len(actual_kwds), 1)
        self.assertIs(actual_kwds['a'], ALWAYS_EQ)

    def test_construct_placeholder_singleton(self):
        PH = self.module.Placeholder