dbus unit tests and $DISPLAY

[Colin Walters]

On Wed, Jun 11, 2014, at 03:03 AM, Simon McVittie wrote:
> On 10/06/14 23:39, Colin Walters wrote:
> > The current Fedora dbus package runs "make check" per request of Red
> > Hat's QA team.
> 
> Note that if you re-./configure D-Bus with --enable-tests *in the same
> build directory*, you need to be really careful that you are not
> accidentally installing the version that has tests enabled, 

Ah, yes, that is bad.  Thanks.

> In Debian we do three out-of-tree builds: a "production build" with
> --enable-installed-tests --disable-embedded-tests --disable-verbose and
> installed to ${exec_prefix}, a "debug build" with all debug features
> enabled and installed to ${libdir}/dbus-1.0/debug-build, and a special
> minimal build for debian-installer with all optional features disabled.
> Other packages link against the production build, but developers can use
> LD_PRELOAD or LD_LIBRARY_PATH to pull in the debug build instead, e.g.
> to get better valgrind traces. We don't run "make check" while building
> the packages as noted above, but we do run the installed-tests via
> autopkgtest on ci.debian.net.

Ok, useful to know.

> I briefly tried to do "make check" on the buildds, but gave up when I
> hit <http://bugs.debian.org/630152> (Debian buildds run as a user whose
> "official" home directory in /etc/passwd does not exist, as a technical
> way to enforce the policy that package builds should not write to
> $HOME). 

Debian's tools could use https://git.gnome.org/browse/linux-user-chroot
for this.  It's intended for exactly this kind of purpose. 
gnome-continuous
uses it to ensure that *only* the build directory is writable,
everything
else has a read-only bind mount.  (It'd be even better if I could
completely
hide the home directory to ensure the build can't read e.g. your ~/.ssh,
but that's hard to do generically)

> Installed tests:
> http://anonscm.debian.org/gitweb/?p=pkg-utopia/dbus.git;a=tree;f=debian/tests

What's the current state of Debian ADT versus
https://wiki.gnome.org/Initiatives/GnomeGoals/InstalledTests ?
I think last we talked you were amenable to DBus installing
InstalledTests .test
files?  And someone was looking at building an automatic bridge from
InstalledTests to ADT, right?