def METHOD_NAME(base_box):
    assert isclose(base_box.volume, np.prod(base_box.L))
    for L in np.linspace(1, 10, 10):
        box = Box.cube(L)
        assert isclose(box.volume, L**3)
        box = Box(L, L + 1, L + 2)
        assert isclose(box.volume, L * (L + 1) * (L + 2))