function __showTests()
 {
     global $ilias, $rbacsystem, $ilObjDataCache, $ilUser;
     include_once './Modules/Course/classes/class.ilCourseObjectiveMaterials.php';
     if (!count($tests = $this->__getAllTests())) {
         return false;
     }
     $this->tpl->addBlockfile('TEST_BLOCK', 'test_block', 'tpl.crs_objectives_view_tst_table.html', 'Modules/Course');
     $this->tpl->setVariable("TBL_TITLE_TST", $this->lng->txt('tests'));
     $this->__showHideLinks('tst');
     if (isset($_SESSION['crs_hide_tst'])) {
         return true;
     }
     $this->tpl->setVariable("TBL_HEADER_WIDTH_TST_1", "75%");
     $this->tpl->setVariable("TBL_HEADER_NAME_TST_1", $this->lng->txt('description'));
     $this->tpl->setVariable("TBL_HEADER_WIDTH_TST", "5%");
     $this->tpl->setVariable("TBL_HEADER_NAME_TST", $this->lng->txt('crs_nr'));
     $this->tpl->setVariable("TBL_HEADER_WIDTH_TST_2", "20%");
     $this->tpl->setVariable("TBL_HEADER_NAME_TST_2", '');
     $counter = 1;
     foreach ($tests as $tst_id) {
         $obj_id = $ilObjDataCache->lookupObjId($tst_id);
         $obj_type = $ilObjDataCache->lookupType($obj_id);
         $conditions_ok = ilConditionHandler::_checkAllConditionsOfTarget($tst_id, $obj_id);
         $obj_link = ilRepositoryExplorer::buildLinkTarget($tst_id, $obj_type);
         $obj_link = "ilias.php?baseClass=ilObjTestGUI&ref_id=" . $tst_id . "&cmd=infoScreen";
         $obj_frame = '';
         if (ilRepositoryExplorer::isClickable($obj_type, $tst_id, $obj_id)) {
             $this->tpl->setCurrentBlock("tst_read");
             $this->tpl->setVariable("READ_TITLE_TST", $ilObjDataCache->lookupTitle($obj_id));
             $this->tpl->setVariable("READ_TARGET_TST", $obj_frame);
             $this->tpl->setVariable("READ_LINK_TST", $obj_link . '&crs_show_result=' . $this->course_obj->getRefId());
             $this->tpl->parseCurrentBlock();
         } else {
             $this->tpl->setCurrentBlock("tst_visible");
             $this->tpl->setVariable("VISIBLE_LINK_TST", $ilObjDataCache->lookupTitle($obj_id));
             $this->tpl->parseCurrentBlock();
         }
         // add to desktop link
         if (!$ilUser->isDesktopItem($tst_id, $obj_type) and $this->course_obj->getAboStatus() == $this->course_obj->ABO_ENABLED) {
             if ($rbacsystem->checkAccess('read', $tst_id)) {
                 $this->tpl->setCurrentBlock("tst_desklink");
                 $this->ctrl->setParameterByClass(get_class($this->container_gui), 'item_ref_id', $tst_id);
                 $this->ctrl->setParameterByClass(get_class($this->container_gui), 'item_id', $tst_id);
                 $this->ctrl->setParameterByClass(get_class($this->container_gui), 'type', $obj_type);
                 $this->tpl->setVariable("DESK_LINK_TST", $this->ctrl->getLinkTarget($this->container_gui, 'addToDesk'));
                 $this->tpl->setVariable("TXT_DESK_TST", $this->lng->txt("to_desktop"));
                 $this->tpl->parseCurrentBlock();
             }
         }
         $this->tpl->setCurrentBlock("tst_row");
         $this->tpl->setVariable("OBJ_TITLE_TST", $ilObjDataCache->lookupTitle($obj_id));
         $this->tpl->setVariable("OBJ_NR_TST", $counter . '.');
         // Check if test is assigned to objective
         include_once 'Modules/Course/classes/class.ilCourseObjectiveQuestion.php';
         if ($this->details_id and ilCourseObjectiveQuestion::_isTestAssignedToObjective($tst_id, $this->details_id)) {
             $this->tpl->setVariable("OBJ_CLASS_CENTER_TST", 'option_value_center_details');
             $this->tpl->setVariable("OBJ_CLASS_TST", 'option_value_details');
         } else {
             $this->tpl->setVariable("OBJ_CLASS_CENTER_TST", 'option_value_center');
             $this->tpl->setVariable("OBJ_CLASS_TST", 'option_value');
         }
         $this->tpl->parseCurrentBlock();
         ++$counter;
     }
 }