X Integration test suite

[Peter Hutterer]

One of the things I've spent quite a bit of time on over the last weeks 
is a test suite. Chase tried to get some integration tests into the X 
server repo a while ago but I think a standalone repo is best (for now 
anyway).

I've pushed the current set of tests to
http://cgit.freedesktop.org/~whot/xorg-integration-tests/, with a 
lengthier explanation here:
http://who-t.blogspot.com.au/2012/08/xorg-integration-test-suite.html

Long story short, the xorg integration tests (XIT) are built on 
googletest and xorg-gtest, i.e. written in C++. Most of them write out a 
config, fire up a server, and then either check the log or query the 
server for state. A few tests use evemu devices to send events.

Input testing is relatively simple with these tests since we can emulate 
virtually anything, but I'm not sure yet if such test cases can scale to 
output tests as well. Or even if there are tests that can be fully 
automatic without anyone staring at the screen. I know mesa already has 
such tests.

Any feedback is appreciated, I intend to talk about this a bit more at 
XDC, but in the meantime you can see if it is useful. Right now, the 
bigger issues I'm facing are the build system and scalability if we end 
up with a ton of tests. And the ifdef hell that already started with 
tests covering different X server versions, RHEL support, etc. Any 
epiphanies on how to avoid a train wreck would be appreciated.

also, to add a bit of trolling, I'm now tempted to merge the input 
drivers into the server repo....

Cheers,
   Peter