Make our test cases write gimpdir files in a dedicate output directory
by changing GIMP2_DIRECTORY at runtime. This ends the writing to the
source directory which make distcheck doesn't like, and it also allows
us to have a separate expected sessionrc for the session management
test. In that test we load a GIMP 2.6 formated sessionrc but write one
updated for 2.8.
We perform this change by passing the builddir through an environment
variable to the test cases. The patch also does some generalizations
in gimp-app-test-utils.c and adapts test cases accordingly.
Also do an adjustment in sessionrc on the toolbox size since
GIMP/GTK+/X/whatever has a tendency to adjust that during runs. The
new size is stable for the moment.
In order to let tests run against the source dir, allow them to
override the menus directory. Add utility functions for this and
adjust gimpuimanager.c accordingly.
Let each test sets GIMP2_DIRECTORY on their own through the help of a
new test utility function gimp_test_utils_set_gimp2_directory() that
is compiled into its own lib which tests are then linked with. Also,
instead of using "/tmp/gimpdir", we use "gimpdir-empty" in the source
dir. This way we get rid of a bunch of annoying warnings when running
the tests and have more control.
Martin Nordholts