public static async Task Wait_is_Awaitable <ItemType, PostType>(PostType expected)
{
var completion = new Wait <object, ItemType>();
IWait wait = completion;
Assert.AreEqual(Need.None, wait.Need, "at initial state");
IFiber <object> fiber = new Mock <IFiber <object> >(MockBehavior.Strict).Object;
object context = new object();
IWait <object, ItemType> typed = completion;
typed.Wait(async(f, c, item, token) =>
{
Assert.AreEqual(Need.Call, wait.Need, "inside callback state");
Assert.AreEqual(fiber, f);
Assert.AreEqual(context, c);
Assert.AreEqual(expected, item.GetAwaiter().GetResult());
Assert.AreEqual(expected, await item);
return(null);
});
Assert.AreEqual(Need.Wait, wait.Need, "waiting state");
wait.Post(expected);
Assert.AreEqual(Need.Poll, wait.Need, "need to poll state");
await typed.PollAsync(fiber, context, CancellationToken.None);
Assert.AreEqual(Need.Done, wait.Need, "done state");
IAwaitable <ItemType> awaitable = completion;
var actual = await awaitable;
Assert.AreEqual(expected, actual);
}