I noticed that during the build time we are running not only unit tests
but also examples.
Indeed, since we need to test the examples to make sure they work.
This causes problems with paths to input data files
and forces each example to use complicated logic to calculate paths.
True, particularly in Restrainer's case where you have paths embedded in
your XML files - you can't use get_example_path() there.
Would it be a good idea to
modify the build process to run examples from their respective
directories? This way all examples can use the relative paths and if a
user wishes to run an example, he/she can just cd to the example
directory and run it directly from there.
Yes, I agree - for running examples during the build, it should be
straightforward enough to have the build system cd into
build/doc/examples to run the example. That also ensures that any
outputs generated by the example don't end up littering the source tree.
If a user wants to run an example manually, he/she can cd into the
directory containing it.