Previously, oe-selftest reported the test it was currently executing. I'm not sure when it changed but recently I have noticed that it only reports having executed a test after it has completed. This is somewhat annoying if you're running oe-selftest manually from the command line and wish to keep an eye on what it is doing.
Review at, http://lists.openembedded.org/pipermail/openembedded-core/2017-July/140140.html
Merge at, http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=0f0368d0527eacb13ac8547c2732219b0d4b64fe