public void QueueArray_InsertAt()
{
QueueArray <int> queue = new QueueArray <int>();
queue.InsertAt(0, 0);
CollectionAssert.AreEqual(new int[] { 0 }, queue.ToArray());
queue.InsertAt(1, 1);
CollectionAssert.AreEqual(new int[] { 0, 1 }, queue.ToArray());
queue.InsertAt(2, 2);
CollectionAssert.AreEqual(new int[] { 0, 1, 2 }, queue.ToArray());
queue.InsertAt(0, -2);
CollectionAssert.AreEqual(new int[] { -2, 0, 1, 2 }, queue.ToArray());
queue.InsertAt(1, -1);
CollectionAssert.AreEqual(new int[] { -2, -1, 0, 1, 2 }, queue.ToArray());
}
