public void DetachTail()
{
// setup
var deque = new CacheDeque <int>();
var queue = new Queue <int>();
var val = GetRandomArray(iterations);
// act
// insert 10 in the front
for (var i = 0; i < iterations; i++)
{
var newVal = new DequeElem <int>(val[i]);
deque.PushHead(newVal);
queue.Enqueue(val[i]);
}
// act & assert
for (var i = 0; i < iterations / 2; i++)
{
var det = deque.DetachTail().item;
var det2 = queue.Dequeue();
Assert.Equal(det2, det);
}
Assert.True(DequeQueueWereEqual(deque, queue));
Assert.Throws <ApplicationException>(() => deque.DetachTail());
}
private bool DequeQueueWereEqual <T>(CacheDeque <T> d1, Queue <T> d2) // empties the deque and queue
{
if (d1.Count != d2.Count)
{
return(false);
}
var cnt = d1.Count;
for (var i = 0; i < cnt; i++)
{
var e1 = d1.DetachTail().item;
var e2 = d2.Dequeue();
if (!e1.Equals(e2))
{
return(false);
}
}
return(true);
}