public void Enqueue_ExpectedTrue()
{
_queue.Enqueue("wo");
Assert.AreEqual(_queue.Count(), 1);
_queue.Dequeue();
Assert.AreEqual(_queue.Count(), 0);
var sb = new StringBuilder();
_queue.Enqueue("ni");
_queue.Enqueue("he");
_queue.Enqueue("wo");
_queue.Enqueue("shi");
_queue.Dequeue();
_queue.Enqueue("tian");
_queue.Dequeue();
_queue.Enqueue("cai");
foreach (var s in _queue)
{
sb.Append(s);
}
Assert.AreEqual("woshitiancai", sb.ToString());
Assert.AreEqual(_queue.Count(), 4);
}