public void OperationCanceledExceptionWithoutCancellationTokenTest()
{
var tcs = new TaskCompletionSource <object>();
var task = tcs.Task;
tcs.SetExceptionOrCanceled(new OperationCanceledException());
Assert.IsTrue(task.IsCanceled);
Assert.IsFalse(task.IsFaulted);
}
public void OrdinaryExceptionTest()
{
var tcs = new TaskCompletionSource <object>();
var task = tcs.Task;
tcs.SetExceptionOrCanceled(new Exception());
Assert.IsTrue(task.IsFaulted);
Assert.IsFalse(task.IsCanceled);
}
public void CompletedTcsSetExceptionOrCanceledTest()
{
var tcs = new TaskCompletionSource <object>();
tcs.SetResult(null);
Assert.ThrowsException <InvalidOperationException>(() =>
{
tcs.SetExceptionOrCanceled(new Exception());
});
}
public async Task OperationCanceledExceptionWithCancellationTokenTest()
{
var cancellationTokenSource = new CancellationTokenSource();
cancellationTokenSource.Cancel();
var cancellationToken = cancellationTokenSource.Token;
var tcs = new TaskCompletionSource <object>();
var task = tcs.Task;
tcs.SetExceptionOrCanceled(new OperationCanceledException(cancellationToken));
Assert.IsTrue(task.IsCanceled);
Assert.IsFalse(task.IsFaulted);
try
{
await task;
}
catch (OperationCanceledException exc)
{
Assert.AreEqual(cancellationToken, exc.CancellationToken);
}
}