--TEST-- MongoDB\Driver\WriteConcern serialization errors --FILE-- <?php require_once __DIR__ . '/../utils/tools.php'; echo throws(function() { unserialize('C:27:"MongoDB\Driver\WriteConcern":30:{a:2:{s:1:"w";i:0;s:1:"j";b:1;}}'); }, 'MongoDB\Driver\Exception\InvalidArgumentException'), "\n"; ?> ===DONE=== <?php exit(0); ?> --EXPECT-- OK: Got MongoDB\Driver\Exception\InvalidArgumentException Cannot enable journaling when using w = 0 ===DONE===