public function testFileLockException()
 {
     $file = new \Ark4ne\LightQueue\Provider\FileLockable(Config::get('queue.lightqueue.queue_directory') . md5('testFileLockException') . ".queue");
     $queue = new FileQueueProvider('testFileLockException');
     $file->handle();
     $this->assertEquals($queue->getFile()->getPath(), $file->getPath());
     $this->assertTrue($file->lock());
     $this->assertFalse($queue->push('test'));
     $this->assertTrue($file->unlock());
     $this->assertTrue($queue->push('test'));
     $this->assertTrue($file->lock());
     $this->assertNull($queue->next());
     $this->assertTrue($file->unlock());
     $this->assertNotNull($queue->next());
 }