public static function getInstance()
 {
     if (is_null(self::$instance)) {
         self::$instance = new testBaseInitClass();
         ezcBaseInit::fetchConfig('testBaseInit', self::$instance);
     }
     return self::$instance;
 }
 public function testCallback2()
 {
     ezcBaseInit::setCallback('testBaseInit', 'testBaseInitCallback');
     $obj = testBaseInitClass::getInstance();
     $this->assertEquals(true, $obj->configured);
 }