def test_enqueue_single_element_in_ready_queue(self):
queue = Queue()
queue.queue = [1, 2]
queue.enqueue(3)
test_result = queue.queue
check_result = [1, 2, 3]
self.assertEqual(
test_result, check_result,
"Testing 'Enqueue'. Enqueue single element in ready queue. Result array are not equal."
)
def test_enqueue_multiple_elements_in_ready_queue(self):
queue = Queue()
queue.queue = [1, 2]
queue.enqueue(3)
queue.enqueue(4)
queue.enqueue(5)
test_result = queue.queue
check_result = [1, 2, 3, 4, 5]
self.assertEqual(
test_result, check_result,
"Testing 'Enqueue'. Enqueue multiple elements in ready queue. Result array are not equal."
)
def test_dequeue_from_empty_queue(self):
queue = Queue()
queue.queue = []
test_value = queue.dequeue()
test_result = queue.queue
check_result = []
self.assertEqual(
test_result, check_result,
"Testing 'Dequeue'. Dequeue from empty queue. Result array are not equal."
)
self.assertIsNone(
test_value,
"Testing 'Dequeue'. Dequeue from normal queue. Dequeued value incorrect."
)
def test_dequeue_from_normal_queue(self):
queue = Queue()
queue.queue = [1, 2, 3, 4, 5]
test_value = queue.dequeue()
check_value = 1
test_result = queue.queue
check_result = [2, 3, 4, 5]
self.assertEqual(
test_result, check_result,
"Testing 'Dequeue'. Dequeue from normal queue. Result array are not equal."
)
self.assertEqual(
test_value, check_value,
"Testing 'Dequeue'. Dequeue from normal queue. Dequeued value incorrect."
)