def test_ship_forward():
ship = Ship(Position(0, 0))
ship.forward(10)
assert ship.position == Position(10, 0)
ship.rotate("R", 180)
assert ship.position == Position(10, 0)
ship.forward(10)
assert ship.position == Position(0, 0)
ship.forward(30)
assert ship.position == Position(-30, 0)
def test_ship_rotation_left():
ship = Ship(Position(0, 0))
ship.rotate("L", 90)
assert ship.degrees == 90
ship.rotate("L", 90)
assert ship.degrees == 180
ship.rotate("L", 90)
assert ship.degrees == 270
ship.rotate("L", 90)
assert ship.degrees == 0
ship.rotate("L", 180)
assert ship.degrees == 180
def test_ship_rotation_right():
ship = Ship(Position(0, 0))
ship.rotate("R", 90)
assert ship.degrees == 270
ship.rotate("R", 90)
assert ship.degrees == 180
ship.rotate("R", 90)
assert ship.degrees == 90
ship.rotate("R", 270)
assert ship.degrees == 180
