PHPUnit_Framework_TestResult::addListener PHP Метод

    public function addListener(PHPUnit_Framework_TestListener $listener)
    {
        $this->listeners[] = $listener;
    }

 /**
  * @covers PHPUnit_Framework_TestResult
  */
 public function testEndEventsAreCounted()
 {
     $this->result = new PHPUnit_Framework_TestResult();
     $listener = new BaseTestListenerSample();
     $this->result->addListener($listener);
     $test = new Success();
     $test->run($this->result);
     $this->assertEquals(1, $listener->endCount);
 }