$TODO_DIR were not protected therefore evaluated to null string
Hopefully it was used only to test for its own presence
but better to fix it in case someone wants to reuse that code
Signed-off-by: Emil Sit <sit@emilsit.net>
Add a basic test framework, borrowed from the framework used
by git.git. A shell script library (tests/test-lib.sh) helps
generate the fixtures, and simplifies the process of writing
test scripts. Tests can be run as a suite (via 'make test')
or individually (sh tests/t0000-config.sh). Results are aggregated
upon completion. Includes a detailed README.
A basic test of config file processing is part of this commit.
Signed-off-by: Emil Sit <sit@emilsit.net>