public void set_Path_XmlLibraries()
        {
            var tmFileStorage = new TM_FileStorage(false);

            TMConfig.Current = null;

            //this is the sequence that needs to be loaded in order to have a Path for Xml Libraries
            tmFileStorage.set_WebRoot()
                         .set_Path_XmlDatabase()
                         .tmServer_Load()
                         .set_Path_UserData()           //
                         .tmConfig_Load()               //
                         .set_Path_XmlLibraries();

            Assert.NotNull(tmFileStorage.path_XmlDatabase());
            Assert.NotNull(tmFileStorage.path_XmlLibraries());
            Assert.IsTrue (tmFileStorage.path_XmlDatabase().dirExists());
            Assert.IsTrue (tmFileStorage.path_XmlLibraries().dirExists());
            Assert.NotNull(TMConfig.Current);

            //test nulls
            tmFileStorage.Path_XmlLibraries =null;

            //in the scenarios below the tmFileStorage.Path_XmlLibraries should not be set
            if(TMConfig.Current.notNull())
                TMConfig.Current.TMSetup = null;
            tmFileStorage.set_Path_XmlLibraries();
            TMConfig.Current = null;
            tmFileStorage.set_Path_XmlLibraries();
            Assert.IsNull(tmFileStorage.Path_XmlLibraries);

            //tmXmlDatabase.delete_Database();
            //TMConfig.Current = new TMConfig();
        }