def test_Empty_And_Size(self): expectedSize = 3 testQueue = Queue() testQueue.Enqueue(1) testQueue.Enqueue(2) testQueue.Enqueue(3) testSize = testQueue.Size() self.assertEqual(testSize, expectedSize) isEmpty = testQueue.IsEmpty() self.assertEqual(isEmpty, False) testQueue.Dequeue() testQueue.Dequeue() testQueue.Dequeue() isEmpty = testQueue.IsEmpty() self.assertEqual(isEmpty, True)