diff --git a/tests/app/FrontControllerTest.php b/tests/app/FrontControllerTest.php
index 8496bd8..1d13571 100644
--- a/tests/app/FrontControllerTest.php
+++ b/tests/app/FrontControllerTest.php
@@ -47,7 +47,7 @@ class FrontControllerTest extends PHPUnit_Framework_TestCase
             $this->getMock('ErrorLayout', array('fetch', 'setException'), array(), 'ErrorLayoutMock');
         }
         if (!class_exists('ErrorActionMock')) {
-            $this->getMock('ErrorAction', array(), array(), 'ErrorActionMock', false);
+            $this->getMock('ErrorAction', array('setAjaxError'), array(), 'ErrorActionMock', false);
         }
         set_new_overload(array($this, 'newCallback'));
     }
@@ -231,6 +231,21 @@ class FrontControllerTest extends PHPUnit_Framework_TestCase
     /**
      * @runInSeparateProcess
      */
+    public function testExecuteWithAjaxActionError()
+    {
+        $this->getMock('userAction');
+        $_SERVER['REQUEST_URI'] = '/user/account/213';
+        $this->setConstants(false);
+        $controller = FrontController::getInstance();
+        $router = $controller->getRouter();
+        $router->add('user', 'user/account/:id', 'NewAjax');
+        $result = $controller->execute();
+        $this->assertNull($result);
+    }
+
+    /**
+     * @runInSeparateProcess
+     */
     public function testExecuteWithAjaxActionProfiler()
     {
         Config::set('PROFILER', true);
@@ -276,6 +291,9 @@ class FrontControllerTest extends PHPUnit_Framework_TestCase
 /**
  * Used in testExecuteWithAjaxAction
  */
-class NewAjaxAction extends AjaxAction{
-    protected function execute() {}
+class NewAjaxAction extends AjaxAction
+{
+    protected function execute()
+    {
+    }
 }
\ No newline at end of file