public static void dequeuing_one_item_from_a_queue_of_two_sets_the_head_and_tail_to_the_remaining_item(Test t)
{
var q = new LinkedQueue <Waiter>();
var win1 = new Waiter();
var win2 = new Waiter();
Queue.Enqueue(ref q, win1);
Queue.Enqueue(ref q, win2);
var wout = Queue.Dequeue(ref q);
if (win1 != wout)
{
t.Fatal("dequeue item is wrong");
}
if (q.Head != win2)
{
t.Fatal("Head is " + q.Head);
}
if (q.Tail != win2)
{
t.Fatal("Tail is " + q.Tail);
}
if (win1.Next != null)
{
t.Fatal("win1.Next is " + win1.Next);
}
}
public static void dequeuing_the_only_item_in_the_queue_empties_the_queue(Test t)
{
var q = new LinkedQueue <Waiter>();
var win = new Waiter();
Queue.Enqueue(ref q, win);
var wout = Queue.Dequeue(ref q);
if (win != wout)
{
t.Fatal("dequeue item is wrong");
}
if (q.Head != null)
{
t.Fatal("Head is " + q.Head);
}
if (q.Tail != null)
{
t.Fatal("Tail is " + q.Tail);
}
if (win.Next != null)
{
t.Fatal("win1.Next is " + win.Next);
}
}
void CancelAllWaitingReceivers()
{
for (var r = _receivers.Head; r != null; r = r.Next)
{
r.SetCanceled(_closed);
}
_receivers = new LinkedQueue <Receiver <T> >();
}
void CancelAllWaitingReceivers()
{
for (var r = _receivers.Head; r != null; r = r.Next)
{
#if !NET45
r.TrySetCanceled(_closed);
#else
Task.Run(() => r.SetCanceled());
#endif
}
_receivers = new LinkedQueue <Receiver <T> >();
}
public static void head_and_tail_not_set_on_new_queue(Test t)
{
var q = new LinkedQueue <Waiter>();
if (q.Head != null)
{
t.Fatal("Head is " + q.Head);
}
if (q.Tail != null)
{
t.Fatal("Tail is " + q.Tail);
}
}
public static void can_enqueue_into_empty_queue(Test t)
{
var q = new LinkedQueue <Waiter>();
var w = new Waiter();
Queue.Enqueue(ref q, w);
if (q.Head != w)
{
t.Fatal("Head is " + q.Head + " but expected it to be w");
}
if (q.Tail != w)
{
t.Fatal("Tail is " + q.Head + " but expected it to be w");
}
}
public static void second_enqueued_item_becomes_the_tail(Test t)
{
var q = new LinkedQueue <Waiter>();
var w1 = new Waiter();
var w2 = new Waiter();
Queue.Enqueue(ref q, w1);
Queue.Enqueue(ref q, w2);
if (q.Head != w1)
{
t.Fatal("Head is " + q.Head + " but expected it to be w1");
}
if (q.Tail != w2)
{
t.Fatal("Tail is " + q.Tail + " but expected it to be w2");
}
}
public static void removing_last_item_from_a_queue_of_two_sets_the_head_and_tail_to_the_remaining_item(Test t)
{
var q = new LinkedQueue <Waiter>();
var win1 = new Waiter();
var win2 = new Waiter();
Queue.Enqueue(ref q, win1);
Queue.Enqueue(ref q, win2);
Queue.Remove(ref q, win2);
if (q.Head != win1)
{
t.Fatal("Head is " + q.Head);
}
if (q.Tail != win1)
{
t.Fatal("Tail is " + q.Tail);
}
}
public static void removing_the_only_item_from_a_queue_sets_the_head_and_tail_to_null(Test t)
{
var q = new LinkedQueue <Waiter>();
var win1 = new Waiter();
Queue.Enqueue(ref q, win1);
Queue.Remove(ref q, win1);
if (q.Head != null)
{
t.Fatal("Head is " + q.Head);
}
if (q.Tail != null)
{
t.Fatal("Tail is " + q.Tail);
}
if (win1.Next != null)
{
t.Fatal("win1.Next is " + win1.Next);
}
}
