A simpler test framework?

[John Arbash Meinel]

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> Fully agreed.  Testing this interactive stuff is pretty hard with our
> current framework, but I'm not sure this would help that case.  Shelver
> hides its prompts after they're answered, so its output is something like:
> 
> "Apply change? [yNfq?]y\r                     Apply 1 change(s)y\r
>                 "
> 
> etc.
> 
> Aaron

Well with a "run_bzr()" test you can check that with:

"Apply change? [yNfq?]y"
"\r                     "
"\rApply 1 change(s)y"
"\r                "

Which also has the advantage of making it clear that you want to test
that it *does* hide its previous message.

(Note that I added some \r because they seemed appropriate.)

John
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