DEP8 tests using the built package source

[Jakub Wilk]

[Adding autopkgtest-devel@ back to To. I fear that Martin is not 
subscribed to -mentors at .]

* Andreas Tille <andreas at an3as.eu>, 2014-03-19, 10:47:
>>autopkgtest calls dpkg-buildpackage to do the actual package build, so 
>>for adding this to autopkgtest explicitly, we could add a flag for 
>>that and call dpkg-buildpackage --target.
>
>Hmmmm, it seems I had a bad preconception about autopkgtest:  We do not 
>test against a binary package?

Short answer: hopefully we do!

Long answer:

You can declare that a test needs to be run from a built source tree. 
Then the test runner will build the package. But that doesn't 
necessarily mean that the built binaries will be used for anything.

Now, adt-run(1) has multiple modes of operation. In some of them the 
built binaries are used to satisfy tests' dependencies, in others 
packages from the archive are used. (This is super confusing. :/)

I hope that ci.debian.net is configured in such a way it uses binary 
packages from the archive.

-- 
Jakub Wilk