public void Peek()
{
var q = new PooledQueue <int>();
RegisterForDispose(q);
Assert.Throws <InvalidOperationException>(() => q.Peek());
q.Enqueue(1);
Assert.Equal(1, q.Peek());
q.Enqueue(2);
Assert.Equal(1, q.Peek());
Assert.Equal(1, q.Dequeue());
Assert.Equal(2, q.Peek());
Assert.Equal(2, q.Dequeue());
}
public void Queue_Generic_Peek_AllElements(int count)
{
PooledQueue <T> queue = GenericQueueFactory(count);
List <T> elements = queue.ToList();
foreach (T element in elements)
{
Assert.Equal(element, queue.Peek());
queue.Dequeue();
}
}