def test_mix_add_duplicate():
arr = Array([0])
arr2 = arr.duplicate(True)
arr.append(1)
arr2.append(2)
arr3 = arr + arr2
arr.append(3)
arr3 += arr
assert list(arr) == [0, 1, 3]
assert list(arr2) == [0, 2]
assert list(arr3) == [0, 1, 0, 2, 0, 1, 3]
def test_duplicate(deep):
inner = Array([0])
arr = Array([inner])
arr2 = arr.duplicate(deep)
arr[0].append(1)
arr2[0].append(2)
if deep:
assert arr == Array([Array([0, 1])])
assert arr2 == Array([Array([0, 2])])
else:
assert arr == Array([Array([0, 1, 2])])
assert arr2 == arr