public void TaskExtensions_ValueTaskWithCancellationCompleted()
{
var cts = new CancellationTokenSource();
cts.Cancel();
var awaiter = new ValueTask <int>(8).AwaitWithCancellation(cts.Token).GetAwaiter();
Assert.AreEqual(true, awaiter.IsCompleted);
Assert.AreEqual(8, awaiter.GetResult());
}
public void TaskExtensions_ValueTaskWithCancellationCanceled()
{
var tcs = new TaskCompletionSource <int>();
var cts = new CancellationTokenSource();
cts.Cancel();
var awaiter = new ValueTask <int>(tcs.Task).AwaitWithCancellation(cts.Token).GetAwaiter();
Assert.AreEqual(true, awaiter.IsCompleted);
Assert.Catch <OperationCanceledException>(() => awaiter.GetResult());
}
public void TaskExtensions_ValueTaskWithCancellationFailedAfterContinuationScheduled()
{
var tcs = new TaskCompletionSource <int>();
var cts = new CancellationTokenSource();
var awaiter = new ValueTask <int>(tcs.Task).AwaitWithCancellation(cts.Token).GetAwaiter();
var continuationCalled = false;
Assert.AreEqual(false, awaiter.IsCompleted);
awaiter.UnsafeOnCompleted(() => continuationCalled = true);
Assert.AreEqual(false, awaiter.IsCompleted);
Assert.AreEqual(false, continuationCalled);
tcs.SetException(new OperationCanceledException("Error"));
Assert.AreEqual(true, continuationCalled);
Assert.AreEqual(true, awaiter.IsCompleted);
Assert.Catch <OperationCanceledException>(() => awaiter.GetResult(), "Error");
}
public void TaskExtensions_ValueTaskWithCancellationDefault()
{
var tcs = new TaskCompletionSource <int>();
var cts = new CancellationTokenSource();
var awaiter = new ValueTask <int>(tcs.Task).AwaitWithCancellation(cts.Token).GetAwaiter();
var continuationCalled = 0;
Assert.AreEqual(false, awaiter.IsCompleted);
awaiter.UnsafeOnCompleted(() => continuationCalled++);
Assert.AreEqual(false, awaiter.IsCompleted);
Assert.AreEqual(0, continuationCalled);
tcs.SetResult(8);
Assert.AreEqual(true, awaiter.IsCompleted);
Assert.AreEqual(1, continuationCalled);
Assert.AreEqual(8, awaiter.GetResult());
cts.Cancel();
Assert.AreEqual(1, continuationCalled);
}