[TASK] Mark tests incomplete instead of returning this

Author: therouv

src/app/code/community/FireGento/AdminMonitoring/Test/Model/Observer.php

@@ -75,7 +75,7 @@ protected function _createObserver(array $data)
      */
     public function testNoHistorySaves()
     {
-        return $this; // @todo fix unit test
+        $this->markTestIncomplete('Test needs to be refactored.');
 
         $object = new FireGento_AdminMonitoring_Model_History();
         $data = array('object' => $object);
@@ -96,7 +96,7 @@ public function testNoHistorySaves()
     public function testHistorySavesWithCustomer(
         $id, $mail = null, $firstname = null, $lastname = null, $password = null
     ) {
-        return $this; // @todo fix unit test
+        $this->markTestIncomplete('Test needs to be refactored.');
 
         /* @var $customer Mage_Customer_Model_Customer */
         $customer = Mage::getModel('customer/customer');