prepareDevToolTests();
I18nManager i18nMgr = I18nManager.getInstance();
String testSourceBundle = "org.olat.core.util.i18n.junittestdata.devtools.source";
String testTargetBundle = "org.olat.core.util.i18n.junittestdata.devtools.target";
TranslationDevManager tDMgr = TranslationDevManager.getInstance();
tDMgr.mergePackageTask(testSourceBundle, testTargetBundle);
i18nMgr.clearCaches();
assertTrue(i18nMgr.getPropertiesWithoutResolvingRecursively(null, testSourceBundle).isEmpty());
//TODO: manipulate source/target first, merge and check if all is in target!
//try to merge existing key
}