def test_difference():
a = [1, 2, 3]
b = [1, 2, 3, 4, 5, 6]
inter = sorted(com.difference(b, a))
assert([4, 5, 6] == inter)
def test_difference():
a = [1, 2, 3]
b = [1, 2, 3, 4, 5, 6]
inter = sorted(com.difference(b, a))
assert ([4, 5, 6] == inter)
