Method test_class_var

Lib/test/test_dataclasses/__init__.py:4418–4428

(self)

        self.assertEqual(len(fields(c)), 1)

    def test_class_var(self):
        C = make_dataclass('C',
                           [('x', int),
                            ('y', ClassVar[int], 10),
                            ('z', ClassVar[int], field(default=20)),
                            ])
        c = C(1)
        self.assertEqual(vars(c), {'x': 1})
        self.assertEqual(len(fields(c)), 1)
        self.assertEqual(C.y, 10)
        self.assertEqual(C.z, 20)

    def test_other_params(self):
        C = make_dataclass('C',