public function testSetUnmodifiedData_mergeListToSimple()
{
$mongoId = new \MongoId();
$user = new UserDocumentMock($this->collection, array('_id' => $mongoId, 'comments' => array('good luck!', 'wish you luck!')), array('stored' => true));
$this->assertEquals(array('_id' => $mongoId, 'comments' => array('good luck!', 'wish you luck!')), $user->toArray());
}