Execute task on current thread

Question

Is it possible to force a task to execute synchronously, on the current thread?

That is, is it possible, by e.g. passing some parameter to StartNew(), to ma

Answer 1

Since you mention testing, you might prefer using a TaskCompletionSource since it also lets you set an exception or set the task as cancelled (works in .Net 4 and 4.5):

Return a completed task with a result:

var tcs = new TaskCompletionSource();
tcs.SetResult(func());
return tcs.Task;

Return a faulted task:

var tcs = new TaskCompletionSource();
tcs.SetException(new InvalidOperationException());
return tcs.Task;

Return a canceled task:

var tcs = new TaskCompletionSource();
tcs.SetCanceled();
return tcs.Task;