Method test_patma_runtime_checkable_protocol

Lib/test/test_patma.py:2765–2799

(self)

        self.assertIs(z, x)

    def test_patma_runtime_checkable_protocol(self):
        # Runtime-checkable protocol
        from typing import Protocol, runtime_checkable

        @runtime_checkable
        class P(Protocol):
            x: int
            y: int

        class A:
            def __init__(self, x: int, y: int):
                self.x = x
                self.y = y

        class B(A): ...

        for cls in (A, B):
            with self.subTest(cls=cls.__name__):
                inst = cls(1, 2)
                w = 0
                match inst:
                    case P() as p:
                        self.assertIsInstance(p, cls)
                        self.assertEqual(p.x, 1)
                        self.assertEqual(p.y, 2)
                        w = 1
                self.assertEqual(w, 1)

                q = 0
                match inst:
                    case P(x=x, y=y):
                        self.assertEqual(x, 1)
                        self.assertEqual(y, 2)
                        q = 1
                self.assertEqual(q, 1)


    def test_patma_generic_protocol(self):