FMLLog setup for unit testing

Howdy all

I'm trying to set up unit testing for some of my classes (using JUnit) and it's doing my head in trying to set up the FMLLog so it doesn't crash when the class under test writes to it.

eg if my class under test has

      if (!backupListing.hasKey(BACKUP_LISTING_VERSION_TAG) || !backupListing.hasKey(BACKUP_LISTING_PATHS_TAG)) {
        FMLLog.warning("Invalid backuplisting file (missing tag): " + backupListingPath.toString());
        return retval;
      }

then when it is called by my test class, it gives me a NullPointerException

caused by this line in FMLRelaunchLog::configureLogging

            File logPath = new File(minecraftHome, logFileNamePattern);

because minecraftHome and logFileNamePattern are both not set properly.

I haven't been able to find a way to set them up.

Anyone else figured out a straightforward way to do this?  (Other than replacing all my calls to FMLLog with a wrapper, that is)

-TGG