--TEST-- MongoDB\Driver\ReadConcern serialization (__serialize and __unserialize) --FILE-- ===DONE=== --EXPECTF-- object(MongoDB\Driver\ReadConcern)#%d (%d) { ["level"]=> NULL } O:26:"MongoDB\Driver\ReadConcern":1:{s:5:"level";N;} object(MongoDB\Driver\ReadConcern)#%d (%d) { ["level"]=> NULL } object(MongoDB\Driver\ReadConcern)#%d (%d) { ["level"]=> string(5) "local" } O:26:"MongoDB\Driver\ReadConcern":1:{s:5:"level";s:5:"local";} object(MongoDB\Driver\ReadConcern)#%d (%d) { ["level"]=> string(5) "local" } ===DONE===