public void QueueShouldUseFifo()
{
var queue = new BoundedQueue <int>(null);
var enqueueResult1 = queue.TryEnqueue(1);
var enqueueResult2 = queue.TryEnqueue(2);
var enqueueResult3 = queue.TryEnqueue(3);
var dequeueResult1 = queue.TryDequeue(out var dequeueItem1);
var dequeueResult2 = queue.TryDequeue(out var dequeueItem2);
var dequeueResult3 = queue.TryDequeue(out var dequeueItem3);
enqueueResult1.ShouldBeTrue();
enqueueResult2.ShouldBeTrue();
enqueueResult3.ShouldBeTrue();
dequeueResult1.ShouldBeTrue();
dequeueResult2.ShouldBeTrue();
dequeueResult3.ShouldBeTrue();
dequeueItem1.ShouldBe(1);
dequeueItem2.ShouldBe(2);
dequeueItem3.ShouldBe(3);
}