Method assert_subtype

mypy/test/testsubtypes.py:290–291

(self, s: Type, t: Type)

    #  * generic function types

    def assert_subtype(self, s: Type, t: Type) -> None:
        assert is_subtype(s, t), f"{s} not subtype of {t}"

    def assert_not_subtype(self, s: Type, t: Type) -> None:
        assert not is_subtype(s, t), f"{s} subtype of {t}"