def test_car_getters():
car = Car(1, "BOB", "Jhon")
assert str(car.get_id()).isdecimal()
assert car.get_owner().isalpha()
assert car.get_number().isalpha()
assert car.get_id() == 1
assert car.get_number() == "BOB"
assert car.get_owner() == "Jhon"
def test_car_setters():
car = Car(1, "BOB", "Jhon")
car.set_owner("IAN")
car.set_number("NIG")
car.set_id(2)
assert car.get_id() == 2
assert car.get_owner() == "IAN"
assert car.get_number() == "NIG"