def test_clear_output(self):
view_model = TemperatureConverterViewModel()
view_model.set_input_value("-13,5")
view_model.set_cast_type("newton")
view_model.convert()
view_model.clear_output()
self.assertEqual(view_model.get_output_value(), '')
def test_clear_error(self):
view_model = TemperatureConverterViewModel()
view_model.set_input_value("some not a number string")
view_model.convert()
view_model.clear_error()
self.assertEqual(view_model.get_error(), '')
def test_output_converting_case_nan(self):
view_model = TemperatureConverterViewModel()
view_model.set_input_value("some not a number string")
view_model.convert()
self.assertEqual(view_model.get_output_value(), '')
def test_error_converting_case_nan(self):
view_model = TemperatureConverterViewModel()
view_model.set_input_value("some not a number string")
view_model.convert()
self.assertEqual(view_model.get_error(),
"The value is not numeric.\nEnter a numeric value.")
def test_converting_case_newton(self):
view_model = TemperatureConverterViewModel()
view_model.set_input_value("-13,5")
view_model.set_cast_type("newton")
view_model.convert()
self.assertAlmostEqual(view_model.get_output_value(), -4.455)
def test_converting_case_kelvin(self):
view_model = TemperatureConverterViewModel()
view_model.set_input_value("-13,5")
view_model.set_cast_type("kelvin")
view_model.convert()
self.assertAlmostEqual(view_model.get_output_value(), 259.65)
def test_converting_case_fahrenheit(self):
view_model = TemperatureConverterViewModel()
view_model.set_input_value("-13,5")
view_model.convert()
self.assertAlmostEqual(view_model.get_output_value(), 7.7)