Neos\Flow\ResourceManagement\Streams\StreamWrapperAdapter::stream_lock PHP Метод

    public function stream_lock($operation)
    {
        if ($operation === LOCK_UN) {
            return $this->streamWrapper->unlock();
        } else {
            return $this->streamWrapper->lock($operation);
        }
    }

 /**
  * @test
  */
 public function stream_unlockTest()
 {
     $operation = LOCK_UN;
     $this->mockStreamWrapper->expects($this->once())->method('unlock')->will($this->returnValue(true));
     $this->assertTrue($this->streamWrapperAdapter->stream_lock($operation));
 }