IEnumerator TestWhenAllFaultedCoroutine(Fiber [] fibers)
        {
            // One fiber will cancel
            var waitAllFiber = Fiber.WhenAll (fibers);
            yield return waitAllFiber;

            // None should be running
            Assert.IsFalse (fibers.Any (f => f.Status == FiberStatus.Running), "No fibers should have been running");

            // All should be complete
            Assert.IsTrue (fibers.All (f => f.IsCompleted), "All should be complete");

            // 2 should be faulted
            Assert.AreEqual (2, fibers.Count (f => f.IsFaulted), "2 should be faulted");

            // None should be canceled
            Assert.IsFalse (fibers.Any (f => f.IsCanceled), "None should be canceled");

            // Result should not be present
            Assert.IsNull (waitAllFiber.ResultAsObject, "Result should not be present");

            // Fiber should be faulted
            Assert.IsTrue (waitAllFiber.IsFaulted, "Fiber should have been faulted");

            // Fiber should have exception
            Assert.IsNotNull (waitAllFiber.Exception, "Fiber should have exception");

            // Exception should have 2 inner exceptions
            Assert.AreEqual (2, (waitAllFiber.Exception as AggregateException).InnerExceptions.Count, "Fiber should have 2 inner exceptions");
        }
        IEnumerator TestWhenAnyCoroutine(Fiber[] fibers)
        {
            // Wait
            var waitAllFiber = Fiber.WhenAny(fibers);
            yield return waitAllFiber;

            // Verify index 2 was the winner and is done
            Assert.AreEqual(fibers[2], waitAllFiber.ResultAsObject, "Fiber at index 2 was not the winner and should be");
            Assert.IsTrue(fibers[2].IsCompleted, "Fiber at index 2 should have been stopped");

            // Others should still be running
            Assert.IsTrue(fibers.Any(f => f.Status == FiberStatus.Running), "Other fibers should have been running but were not");

            // Wait 2s more
            yield return new YieldForSeconds(2);

            // Now none should be running
            Assert.IsTrue(fibers.All(f => f.IsCompleted), "No fibers should have been running");
        }
        IEnumerator TestWhenAllChildCancellationCoroutine(Fiber [] fibers)
        {
            // One fiber will cancel
            var waitAllFiber = Fiber.WhenAll (fibers);
            yield return waitAllFiber;

            // None should be running
            Assert.IsFalse (fibers.Any (f => f.Status == FiberStatus.Running), "No fibers should have been running");

            // All should be complete
            Assert.IsTrue (fibers.All (f => f.IsCompleted), "All should be complete");

            // None should be faulted
            Assert.IsFalse (fibers.Any (f => f.IsFaulted), "None should be faulted");

            // One should be canceled
            Assert.IsTrue (fibers.Count (f => f.IsCanceled) == 1, "One should be canceled");

            // Result should not be present
            Assert.IsNull (waitAllFiber.ResultAsObject, "Result should not be present");

            // Fiber should not be faulted
            Assert.IsFalse (waitAllFiber.IsFaulted, "Fiber should not be faulted");

            // Fiber should be canceled
            Assert.IsTrue (waitAllFiber.IsCanceled, "Fiber should have been canceled");
        }