Re: [libvirt] RFC: Move tests into same directory as the sources

Currently we have a split with all the "source" code under various subdirectories of src/, while the test cases are (mostly) all under the tests/ directory. I think there could be some benefits to moving the test files to be alongside the source files being tested. eg instead of tests/virhashtest.c have src/util/virhashtest.c The tests/ directory is getting reasonably large, and is likely to grow even more as we push for greater unit tests. We could split it up into various sub-directories mirroring the split of dirs under src/, but it seems easier to put have them directory under src/ and remove the arbitrary split of source and tests. Having the test files alongside the source files makes it obvious to anyone looking in a directory that tests exist for a file. This might encourage people to think about adding tests when changing a source file. It also makes it more slightly obvious which files lack proper tests.