public function testStoreByteExceptionWhileInsertingChunks()
{
$collection = $this->getGridFS();
$collection->chunks->createIndex(['n' => 1], ['unique' => true]);
$document = ['n' => 0];
$collection->chunks->insert($document);
$this->setExpectedExceptionRegExp('MongoGridFSException', '/Could not store file:.* E11000 duplicate key error .* mongo-php-adapter\\.fs\\.chunks/');
$collection->storeBytes('foo');
}