Function test_assert_never_literal

testing/test_compat.py:249–263

()

def test_assert_never_literal() -> None:
    x: Literal["a", "b"] = "a"

    if x == "a":
        pass
    else:
        with pytest.raises(AssertionError):
            assert_never(x)  # type: ignore[arg-type]

    if x == "a":
        pass
    elif x == "b":
        pass
    else:
        assert_never(x)