fix tests

libnymea-core/logging/logengine.cpp

@@ -223,6 +223,7 @@ void LogEngine::clearDatabase()
 
 void LogEngine::logSystemEvent(const QDateTime &dateTime, bool active, Logging::LoggingLevel level)
 {
+    qCDebug(dcLogEngine()) << "Logging system event:" << active;
     LogEntry entry(dateTime, level, Logging::LoggingSourceSystem);
     entry.setEventType(Logging::LoggingEventTypeActiveChange);
     entry.setActive(active);

tests/auto/logging/testlogging.cpp

@@ -199,6 +199,7 @@ void TestLogging::systemLogs()
     qWarning() << "Restarting server";
     restartServer();
     qWarning() << "Restart done";
+    waitForDBSync();
 
     // there should be 2 log entries, one for shutdown, one for startup (from server restart)
     response = injectAndWait("Logging.GetLogEntries", params);