Re: RFC: Gtk+ testing utilities

[Tim Janik <timj gtk org>]

On Mon, 19 Nov 2007, Stefan Kost wrote:

> Tim Janik schrieb:

> > the logic from the makefile might be useful to factor out into a script
> > for other GUI projects though, since it involved quite some tweaking to
> > handle missing Xvfb gracefully, find free display ids and provide
> > meaningful
> > error messages on errors.
>
> Yep, My code had to pass several revision to mature. E.g. its good to cleanup
> dead display and lock files. While looking at your code, it seems you use
> display ids ranging from 101-199, is that right (did not know this would work).

yes, and via shell traps, the Xvfb is killed away if everything (program,
make, etc.) crashes. so it'll efectively never leak Xvfb server processes
(which is likely to happen with if test apps spawn Xvfb away themselves and crash).

also, the Xvfb presence is simply checked in the makefile, so we don't need to
depend on configure time checks and could conceivably exchange it for Xnest/
Xephyr/etc via environment variables.

> Stefan

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ciaoTJ