[TFUI] Re: [TDD] Testing Dialogs

Anderson, Kelly wrote:


> I have an interesting approach to testing dialogs that I don't recall 
> seeing discussed on this list before, so I thought I'd share the 
> technique. Basically, you bring the dialog up on a separate thread, then 
> you remote control the dialog and see if you get the expected result.

> t = new Thread(new ThreadStart(OpenDialog));
> t.Start();
> Thread.Sleep(1500); // wait for dialog to come up... then run test.

Tip: Pass a testing object into the thread, and let that throw a semaphore. 
Then block on the semaphore here.

However, in general, Dialogs often block as a programmatic convenience, so 
the same function as calls them can collect their return value and keep 
going.

False conveniences are bad for event-driven and test-ready programming. If 
you instead create a modeless dialog, you can disable the underlying window, 
and get exactly the same behaviors as a modal dialog. Then your test can 
stay in one thread, and can operate the event queue to send the dialog 
messages.

-- 
  Phlip
  http://www.greencheese.us/ZeekLand <-- NOT a blog!!! 



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