Unit test improvements

Three separate, small changes:
 - Forced executing unit tests before .rpm creation (and stopping on any test case failure)
 - Fixed operator name decoding tests, related to commit b1d25cc6b210e183acfdfea3a9379c2ce6dc4d4c / pull request #188
 - Added SMS decoding tests, related to commit 64e7d819d59c7eee702c922e20a6cd9d16d02a32 / pull request #112