public function testGetPendingChanges_maxChunks()
 {
     $chunkAccess = $this->getMock('Wikibase\\ChunkAccess');
     $chunkAccess->expects($this->exactly(1))->method('loadChunk')->will($this->returnCallback(array($this, 'getChanges')));
     $chunkAccess->expects($this->any())->method('getRecordId')->will($this->returnCallback(function (Change $change) {
         return $change->getId();
     }));
     $dispatcher = new ChangeDispatcher($this->getMock('Wikibase\\Store\\ChangeDispatchCoordinator'), $this->getNotificationSender(), $chunkAccess, $this->getSubscriptionLookup());
     // 2 changes are loaded in each chunk
     $dispatcher->setBatchSize(2);
     $dispatcher->setBatchChunkFactor(1);
     // only process 1 chunk
     $dispatcher->setMaxChunks(1);
     $dispatcher->getPendingChanges('dewiki', 0);
 }