def test_intersection_wrong_parameter():
b = Box(10, 10, 10, 10)
with pytest.raises(AssertionError):
b.intersection(10)
def test_intersection(b2_args, isect):
b1 = Box(100, 50, 60, 20)
b2 = Box(*b2_args)
assert isect == b1.intersection(b2)
assert isect == b2.intersection(b1)