list sort() arrID = id(arrID) when it should be arrID = id(arr) #3
Description
Examples in other tests:
def test_reverse_two():
arr = [1,2,3]
arrID = id(arr)
assert id(reverse(arr)) == arrID
def test_extend_two():
arr = [1,2,3]
arrID = id(arr)
assert id(extend(arr, [4,5,6])) == arrID