How to create a Task<> I can complete manually

Question

In unit testing a component I need to verify how a component reacts to Tasks being completed at various times.

How do I create a Task<> that I can res

Answer 1

You can use a TaskCompletionSource to create a fully 'manual' task.

Represents the producer side of a Task unbound to a delegate, providing access to the consumer side through the Task property.

Hand out the the completion source's Task property to the consumer, and call SetResult on it (at will) to complete the task. Note that you also have SetCanceled and SetException to represent cancellations and failures, respectively.