def test_model_perform_logging(self):
model = QuadraticEquationViewModel()
model.set_a(2)
model.set_b(4)
model.set_c(2)
model.perform()
self.assertEqual('Result = Answer:\n x = -1.0',
model.logger.get_last_message())
def test_input_wrong_data(self):
model = QuadraticEquationViewModel()
model.set_a('@1')
model.set_b(4)
model.set_c(2)
model.perform()
wrong_message = 'Incorrect input'
self.assertEqual(wrong_message, model.logger.get_last_message())
def test_model_perform_all_message_logging(self):
model = QuadraticEquationViewModel()
model.set_a(2)
model.set_b(4)
model.set_c(2)
model.perform()
log_message = [
'Setting a = 2', 'Setting b = 4', 'Setting c = 2',
'Button clicked', 'a = 2, b = 4, c = 2',
'Result = Answer:\n x = -1.0'
]
self.assertEqual(log_message, model.logger.get_log_messages()[-6:])
def test_when_enter_incorrect_values_throw_exception(self):
model = QuadraticEquationViewModel(2, '@48', 2)
model.perform()
answer = 'Incorrect input'
self.assertEqual(answer, model.get_error_message())
def test_when_enter_values_display_result(self):
model = QuadraticEquationViewModel(2, 4, 2)
model.perform()
answer = 'Answer:\n x = -1.0'
self.assertEqual(answer, model.get_result())