public void DequeueTest()
        {
            CollectionEx.Queue <int> actual = new CollectionEx.Queue <int>();

            actual.Enqueue(3);
            actual.Enqueue(5);
            actual.Enqueue(8);
            actual.Dequeue();
            int[] expected = new int[] { 5, 8 };
            Assert.AreEqual(expected, actual.ToArray());
        }
        public void DequeueNumberTest()
        {
            CollectionEx.Queue <int> numbers = new CollectionEx.Queue <int>();

            numbers.Enqueue(3);
            numbers.Enqueue(5);
            numbers.Enqueue(8);
            var actual   = numbers.Dequeue();
            int expected = 3;

            Assert.AreEqual(expected, actual);
        }