/**
  * folder counts test helper
  * 
  * @param Felamimail_Model_Folder $_folder
  * @param array $_newCounters
  * @param array $_expectedValues
  */
 protected function _folderCountsTestHelper($_folder, $_newCounters, $_expectedValues)
 {
     $updatedFolder = $this->_controller->updateFolderCounter($_folder, $_newCounters);
     foreach ($_expectedValues as $key => $value) {
         $this->assertEquals($value, $updatedFolder->{$key}, $key . ' does not match.');
     }
     $folderInDb = $this->_controller->get($_folder->getId());
     $this->assertTrue($updatedFolder->toArray() == $folderInDb->toArray(), 'folder values do not match');
 }