def test_converter_without_caster(self, mocker):
converter_mock = mocker.stub()
converter_mock.return_value = 2
cast = standard.Cast(None, converter_mock)
return_value = cast.convert(1)
converter_mock.assert_called_with(1)
assert return_value == 2
def test_convert_with_caster(self, mocker):
caster = mocker.Mock(return_value=2)
converter_mock = mocker.Mock(return_value=3)
cast = standard.Cast(caster, converter_mock)
return_value = cast.convert(1)
caster.assert_called_with(1)
converter_mock.assert_called_with(2)
assert return_value == 3