def test_set_states_west_to_north():
car = Car(5, 5, '<')
assert car.orientation == Car.Orientation.WEST
assert car.count == 0
assert car.state == 'W0'
car.state = 'N1'
assert car.orientation == Car.Orientation.NORTH
assert car.count == 1
def test_set_states_east_to_south():
car = Car(5, 5, '>')
assert car.orientation == Car.Orientation.EAST
assert car.count == 0
assert car.state == 'E0'
car.state = 'S1'
assert car.orientation == Car.Orientation.SOUTH
assert car.count == 1
def test_set_states_south_to_west():
car = Car(5, 5, 'v')
assert car.orientation == Car.Orientation.SOUTH
assert car.count == 0
assert car.state == 'S0'
car.state = 'W1'
assert car.orientation == Car.Orientation.WEST
assert car.count == 1
def test_set_states_north_to_west():
car = Car(5, 5, '^')
assert car.orientation == Car.Orientation.NORTH
assert car.count == 0
assert car.state == 'N0'
car.state = 'W1'
assert car.orientation == Car.Orientation.WEST
assert car.count == 1
assert car.state == 'W1'