/// <summary>
        ///GetLength 的测试
        ///</summary>
        public void GetLengthTestHelper <T>()
        {
            int size = 10;                                          // TODO: 初始化为适当的值
            SequenceQueue <T> target = new SequenceQueue <T>(size); // TODO: 初始化为适当的值
            int expected             = 2;                           // TODO: 初始化为适当的值
            int actual;

            target.In(default(T));
            target.In(default(T));
            actual = target.GetLength();
            Assert.AreEqual(expected, actual);
        }