--TEST-- MongoDB\Driver\ReadConcern::bsonSerialize() returns an object --FILE-- <?php require_once __DIR__ . '/../utils/tools.php'; $tests = [ new MongoDB\Driver\ReadConcern(), new MongoDB\Driver\ReadConcern(MongoDB\Driver\ReadConcern::LINEARIZABLE), new MongoDB\Driver\ReadConcern(MongoDB\Driver\ReadConcern::LOCAL), new MongoDB\Driver\ReadConcern(MongoDB\Driver\ReadConcern::MAJORITY), new MongoDB\Driver\ReadConcern(MongoDB\Driver\ReadConcern::AVAILABLE), ]; foreach ($tests as $test) { var_dump($test->bsonSerialize()); } ?> ===DONE=== <?php exit(0); ?> --EXPECTF-- object(stdClass)#%d (%d) { } object(stdClass)#%d (%d) { ["level"]=> string(12) "linearizable" } object(stdClass)#%d (%d) { ["level"]=> string(5) "local" } object(stdClass)#%d (%d) { ["level"]=> string(8) "majority" } object(stdClass)#%d (%d) { ["level"]=> string(9) "available" } ===DONE===