def test_enqueue(data, result_one, result_two):
"""Test the enqueue method."""
test_list = que_.Queue()
for i in data:
test_list.enqueue(i)
assert test_list.head.value == result_one
assert test_list.tail.value == result_two
def test_len(data, result):
"""Test if list len is properly incremented."""
test_list = que_.Queue(data)
assert test_list.__len__() == result
test_list.enqueue("test_push")
assert test_list.__len__() == result + 1
test_list.dequeue()
assert test_list.__len__() == result
def test_peek(data, result_one):
"""Test the peek method."""
test_list = que_.Queue(data)
assert test_list.peek() == result_one
def test_dequeue_empty():
"""Test to ensure dequeue function returns an index error when the list is empty."""
test_list = que_.Queue()
with pytest.raises(IndexError):
test_list.dequeue()
def test_dequeue(data, result_one, result_two):
"""Test the dequeue method."""
test_list = que_.Queue(data)
assert test_list.dequeue() == result_one
assert test_list.dequeue() == result_two
def test_list_iterables(data, result_one):
"""Ensure enque only takes list or tuples."""
test_list = que_.Queue(data)
assert len(test_list) == result_one
def test_list(data, result_one, result_two):
"""Ensure proper assignment."""
test_list = que_.Queue(data)
assert test_list.head.value == result_one
assert test_list.tail.value == result_two