public async Task t3_async_can_await_events()
{
Workflow w = new Workflow();
// Simulate people working on workflow (on separate thread)
Task.Run(() =>
{
Thread.Sleep(100);
w.ManagerReview("Looks great! -manager");
w.LegalReview("We're covered. -legal");
w.Approve();
});
// Business logic separated from workflow capabilities
Console.WriteLine("Awaiting reviews");
await Task.WhenAll(
w.WhenLegalReviewed(),
w.WhenManagerReviewed());
Console.WriteLine("Have all reviews");
Console.WriteLine("Awaiting approval");
await w.WhenApproved();
Console.WriteLine("Have final approval, workflow finished");
}