def test_plane_is_not_landed_after_having_landed_and_takenoff(): plane = Plane() plane.land() plane.takeoff() assert plane.is_landed() == False
def test_plane_is_not_landed_by_default(): plane = Plane() assert plane.is_landed() == False
def test_plane_is_landed_after_having_landed(): plane = Plane() plane.land() assert plane.is_landed() == True