Method test_repr

Lib/test/test_dataclasses/__init__.py:2632–2658

(self)

class TestRepr(unittest.TestCase):
    def test_repr(self):
        @dataclass
        class B:
            x: int

        @dataclass
        class C(B):
            y: int = 10

        o = C(4)
        self.assertEqual(repr(o), 'TestRepr.test_repr.<locals>.C(x=4, y=10)')

        @dataclass
        class D(C):
            x: int = 20
        self.assertEqual(repr(D()), 'TestRepr.test_repr.<locals>.D(x=20, y=10)')

        @dataclass
        class C:
            @dataclass
            class D:
                i: int
            @dataclass
            class E:
                pass
        self.assertEqual(repr(C.D(0)), 'TestRepr.test_repr.<locals>.C.D(i=0)')
        self.assertEqual(repr(C.E()), 'TestRepr.test_repr.<locals>.C.E()')

    def test_no_repr(self):
        # Test a class with no __repr__ and repr=False.