def test_double_value_mediator(self):
mediator = BooleanMediator('true', 'false')
self.assertEqual(mediator.forward_value('true'), True)
self.assertEqual(mediator.forward_value('false'), False)
self.assertEqual(mediator.forward(wrap_argument)('true'), (True, ))
self.assertEqual(mediator.forward(wrap_argument)('false'), (False, ))
self.assertEqual(mediator.back_value(True), 'true')
self.assertEqual(mediator.back_value(False), 'false')
self.assertEqual(mediator.back(wrap_argument)(True), ('true', ))
self.assertEqual(mediator.back(wrap_argument)(False), ('false', ))
# Now test some different values.
self.assertEqual(mediator.forward_value(555), True)
self.assertEqual(mediator.forward_value([]), False)
self.assertEqual(mediator.forward(wrap_argument)(555), (True, ))
self.assertEqual(mediator.forward(wrap_argument)([]), (False, ))
def test_double_value_mediator_with_fallback(self):
mediator = BooleanMediator('TRUE', 'FALSE',
lambda value: isinstance(value, str))
self.assertEqual(mediator.forward_value('TRUE'), True)
self.assertEqual(mediator.forward_value('FALSE'), False)
self.assertEqual(mediator.forward(wrap_argument)('TRUE'), (True, ))
self.assertEqual(mediator.forward(wrap_argument)('FALSE'), (False, ))
self.assertEqual(mediator.back_value(True), 'TRUE')
self.assertEqual(mediator.back_value(False), 'FALSE')
self.assertEqual(mediator.back(wrap_argument)(True), ('TRUE', ))
self.assertEqual(mediator.back(wrap_argument)(False), ('FALSE', ))
# Test some different values. That's the point---test if
# fallback function is called properly.
self.assertEqual(mediator.forward_value(''), True)
self.assertEqual(mediator.forward_value(67), False)
self.assertEqual(mediator.forward(wrap_argument)(''), (True, ))
self.assertEqual(mediator.forward(wrap_argument)(67), (False, ))
def test_double_value_mediator_basic_equality(self):
self.do_test_basic_equality(BooleanMediator('true', 'false'))
