def test_speed(self):
k = 1000
array, list = CircularArray(), []
start_array = time.time()
for i in range(k):
array.insert(0, i)
end_array = time.time()
start_list = time.time()
for i in range(k):
list.insert(0, k)
end_list = time.time()
print("\n")
print(f"array time: {round(end_array-start_array, 4)}")
print(f"list time: {round(end_list-start_list, 4)}")