protected function setUp()
 {
     $this->folderDao = M::mock(FolderDao::classname());
     $this->dbManager = M::mock(DbManager::classname());
     $this->folderNav = new FolderNav($this->dbManager, $this->folderDao);
     $this->uri = Traceback_uri();
     $this->assertCountBefore = \Hamcrest\MatcherAssert::getCount();
 }