This makes it a bit cleaner when dealing with optional tests as we
use the LIST(APPEND...) command everywhere instead of sometimes SET
and sometimes LIST.
A lot of tests want to read images/fonts that exist in tests/ for reading.
Rather than construct these paths by hand in every single test file, add a
few helper functions to quickly access them.
The helper functions are slightly slower (due to the repeated calls to the
strcat func), but they aren't terribly slow, especially relative to image
loading that these tests perform. They also make writing/maintaining the
tests a lot easier which is more important here.
Since we have random files we want to read & check, turn the two
read programs into general tools. Then we have shell scripts to
run against the right inputs.
Most of the changes here are just shuffling variable names so we
can add to check_PROGRAMS independently of TESTS.
This makes the test code a lot easier to manage rather than copying &
pasting the same boiler plate multiple times.
Also take the opportunity to add a common prefix to each test name so
we don't get collisions between subdirs if a test happens to use the
same exact name.
Pierre Joye
Mike Frysinger
Christoph M. Becker
Nathanael Jones
Ondřej Surý
Takeshi Abe
tabe