Method test_hash_mirrors_eq

tests/test_dunders.py:566–582

If `hash` is None, the hash generation mirrors `eq`.

(self, eq)

    @given(booleans())
    def test_hash_mirrors_eq(self, eq):
        """
        If `hash` is None, the hash generation mirrors `eq`.
        """
        C = make_class("C", {"a": attr.ib()}, eq=eq, frozen=True)

        i = C(1)

        assert i == i
        assert hash(i) == hash(i)

        if eq:
            assert C(1) == C(1)
            assert hash(C(1)) == hash(C(1))
        else:
            assert C(1) != C(1)
            assert hash(C(1)) != hash(C(1))

    @pytest.mark.parametrize(
        "cls",