def test_reverse_mediator(self):
mediator = FunctionalMediator(lambda value: value + 100,
lambda value: value - 100)
reverse_mediator = mediator.reverse()
self.assertEqual(
mediator.forward_value(reverse_mediator.forward_value(77)), 77)
self.assertEqual(mediator.back_value(reverse_mediator.back_value(77)),
77)
self.assertEqual(
mediator.forward_value(reverse_mediator.back_value(33)), 233)
self.assertEqual(
mediator.back_value(reverse_mediator.forward_value(33)), -167)
self.assertEqual(
mediator.forward(reverse_mediator.forward(wrap_argument))(77),
(77, ))
self.assertEqual(
mediator.back(reverse_mediator.back(wrap_argument))(77), (77, ))
self.assertEqual(
mediator.forward(reverse_mediator.back(wrap_argument))(33),
(233, ))
self.assertEqual(
mediator.back(reverse_mediator.forward(wrap_argument))(33),
(-167, ))
def test_functional_mediator(self):
mediator = FunctionalMediator(lambda value: value + 100,
lambda value: value - 100)
self.assertEqual(mediator.forward_value(15), 115)
self.assertEqual(mediator.back_value(15), -85)
self.assertEqual(mediator.forward(wrap_argument)(15), (115, ))
self.assertEqual(mediator.back(wrap_argument)(15), (-85, ))
def test_double_reverse_mediator(self):
mediator1 = FunctionalMediator(lambda value: value + 100,
lambda value: value - 100)
mediator2 = mediator1.reverse().reverse()
self.assertEqual(mediator1.forward_value(10),
mediator2.forward_value(10))
self.assertEqual(mediator1.back_value(10), mediator2.back_value(10))
self.assertEqual(
mediator1.forward(wrap_argument)(10),
mediator2.forward(wrap_argument)(10))
self.assertEqual(
mediator1.back(wrap_argument)(10),
mediator2.back(wrap_argument)(10))
def test_functional_mediator_basic_equality(self):
self.do_test_basic_equality(
FunctionalMediator(lambda value: value + 100,
lambda value: value - 100))
