Method test_falsey_converter

tests/test_converters.py:115–132

Passing a false-y instance still produces a valid converter.

(self)

        assert None is c2.__call__.__annotations__.get("return")

    def test_falsey_converter(self):
        """
        Passing a false-y instance still produces a valid converter.
        """

        class MyConv:
            def __bool__(self):
                return False

            def __call__(self, value):
                return value * 2

        @attr.s
        class C:
            a = attrib(converter=MyConv())

        c = C(21)
        assert 42 == c.a


class TestOptional: