Python Car.setEngineSize方法代码示例

# 需要导入模块: from car import Car [as 别名]
# 或者: from car.Car import setEngineSize [as 别名]
class TestCar(unittest.TestCase):
    def setUp(self):
        self.car = Car()
        # unittest runs the test cases for the class.  TestCase is a subclass of the unit test class.
        # the setUp function uses the standard practice of naming the variable self to call itself.
        # def setUp(self):

    def test_car_mileage_and_move(self):
        # Function to test the mileage starts by testing 0 the default value called from the base class Car
        # move(15) calls the move method move which takes in the value in this case 15 and tests if the mileage
        # has increased by 15 which it has, 12 is added to make 27, than 13 to make 40 than 3.5 to make 43.5.  0
        # is tested and finally changing the value of mileage using setMileage is tested with the value 20 which is
        # passed to the function in the Car class this is tested and the change is confirmed mileage is 20.
        self.assertEqual(0, self.car.getMileage())
        self.car.move(15)
        self.assertEqual(15, self.car.getMileage())
        self.car.move(12)
        self.assertEqual(27, self.car.getMileage())
        self.car.move(13)
        self.assertEqual(40, self.car.getMileage())
        self.car.move(3.5)
        self.assertEqual(43.5, self.car.getMileage())
        self.car.move(0)
        self.assertEqual(43.5, self.car.getMileage())
        self.car.setMileage(20)
        self.assertEqual(20, self.car.getMileage())

    def test_car_make(self):
        # The default value for make is ' ' from the Car class so this is called.  The make is set to Ferrari
        # tests that the value has successfully changed to Ferrari.  Next it is set to Ford and finally Honda Civic.
        self.assertEqual(' ', self.car.getMake())
        self.car.setMake('Ferrari')
        self.assertEqual('Ferrari', self.car.getMake())
        self.car.setMake('Ford')
        self.assertEqual('Ford', self.car.getMake())
        self.car.setMake('Honda Civic')
        self.assertEqual('Honda Civic', self.car.getMake())

    def test_car_engineSize(self):
        # The default engineSize value is ' ' so this is tested first followed by 1.8 and 3.0
        self.assertEqual(' ', self.car.getEngineSize())
        self.car.setEngineSize(1.8)
        self.assertEqual(1.8, self.car.getEngineSize())
        self.car.setEngineSize(3.0)
        self.assertEqual(3.0, self.car.getEngineSize())

    def test_car_colour_and_paint(self):
        # First the default value for colour of ' ' is tested called from the Car class.  Next the paint function is
        # used to test changing the colour of a car object.  In this case the car is painted red so the colour
        # becomes red which is tested next.  The paint function is applied using blue and finally the setColour method
        # of the Car class that takes in the value green in this case using the getColour method which returns the
        # value held in colour and tests it against the string which is correct.
        self.assertEqual(' ', self.car.getColour())
        self.car.paint('red')
        self.assertEqual('red', self.car.getColour())
        self.car.paint('blue')
        self.assertEqual('blue', self.car.getColour())
        self.car.setColour('green')
        self.assertEqual('green', self.car.getColour())