car3 = HybridCar()
car3.setMake('Toyota Prius')
print '\nOur hybrid option is ' + car3.getMake()

car3.setColour('Blue')
print('The colour is ' + car3.getColour())

car3.setMileage(100)
car3.move(17)
print('The mileage is ' + str(car3.getMileage())) + 'kms'
car3.engineSize = '3.1'
print 'The engine size is ' + car3.engineSize

car3.setNumberOfFuelCells(2)
print('The number of fuel cells is ' + str(car3.getNumberOfFuelCells()))
car3.setNumberOfFuelCylinders(1)
print('The number of fuel cylinders is ' + str(car3.getNumberOfFuelCylinders()))


# Car4 calls the PetrolCar class and performs similar functions as other class'.  The colour is red, mileage
# is set to 150 and increased by 25 to 175kms.  The engine size is set at 2.9.  The petrol car is a Toyota Corolla
# and has 3 cylinders set as the value for the variable NumberOfFuelCylinders.
car4 = PetrolCar()
car4.setMake('Toyota Corolla')
print '\nOur petrol option is ' + car4.getMake()

car4.setColour('Red')
print('The colour is: ' + car4.getColour())

car4.setMileage(150)
car4.move(25)
    class TestHybridCar(unittest.TestCase):
        def setUp(self):
            # The HybridCar calls itself using self.
            self.hybrid_car = HybridCar()

        def test_HybridCar_fuel_cylinders(self):
            # Similar to petrol and diesel except default value is 1.  The default value is tested as well as 4, 6
            # and 3 which all result in true.
            self.assertEqual(1, self.hybrid_car.getNumberOfFuelCylinders())
            self.hybrid_car.setNumberOfFuelCylinders(4)
            self.assertEqual(4, self.hybrid_car.getNumberOfFuelCylinders())
            self.hybrid_car.setNumberOfFuelCylinders(6)
            self.assertEqual(6, self.hybrid_car.getNumberOfFuelCylinders())
            self.hybrid_car.setNumberOfFuelCylinders(3)
            self.assertEqual(3, self.hybrid_car.getNumberOfFuelCylinders())

        def test_HybridCar_fuel_cells(self):
            # Similar to ElectricCar test_car_fuel_cells.  The default value 1 is tested as well as 4 and 2.
            self.assertEqual(1, self.hybrid_car.getNumberOfFuelCells())
            self.hybrid_car.setNumberOfFuelCells(4)
            self.assertEqual(4, self.hybrid_car.getNumberOfFuelCells())
            self.hybrid_car.setNumberOfFuelCells(2)
            self.assertEqual(2, self.hybrid_car.getNumberOfFuelCells())

        def test_HybridCar_mileage_and_move(self):
            # As in other cases testing the mileage default value.  Then entering a value for move to ensure
            # it moves that amount to test the mileage of a car.  The car is moved by 7.7 to make 19.7 moved 0
            # output stays the same and lastly setMileage is tested with a value of 15 which is true.
            self.assertEqual(0, self.hybrid_car.getMileage())
            self.hybrid_car.move(12)
            self.assertEqual(12, self.hybrid_car.getMileage())
            self.hybrid_car.move(7.7)
            self.assertEqual(19.7, self.hybrid_car.getMileage())
            self.hybrid_car.move(0)
            self.assertEqual(19.7, self.hybrid_car.getMileage())
            self.hybrid_car.setMileage(15)
            self.assertEqual(15, self.hybrid_car.getMileage())

        def test_HybridCar_make(self):
            # Testing make function for HybridCar.
            self.assertEqual(' ', self.hybrid_car.getMake())
            self.hybrid_car.setMake('Chevrolet Malibu')
            self.assertEqual('Chevrolet Malibu', self.hybrid_car.getMake())
            self.hybrid_car.setMake('Chevrolet Cruz')
            self.assertEqual('Chevrolet Cruz', self.hybrid_car.getMake())

        def test_HybridCar_engineSize(self):
            # Testing engineSize for HybridCar.
            self.assertEqual(' ', self.hybrid_car.getEngineSize())
            self.hybrid_car.setEngineSize(1.6)
            self.assertEqual(1.6, self.hybrid_car.getEngineSize())
            self.hybrid_car.setEngineSize(1.8)
            self.assertEqual(1.8, self.hybrid_car.getEngineSize())

        def test_HybridCar_colour_and_paint(self):
            # Testing colour and paint for HybridCar.
            self.assertEqual(' ', self.hybrid_car.getColour())
            self.hybrid_car.paint('red')
            self.assertEqual('red', self.hybrid_car.getColour())
            self.hybrid_car.setColour('light blue')
            self.assertEqual('light blue', self.hybrid_car.getColour())