DRIVERS-3023 Add spec tests for GridFS Bucket rename

Author: GromNaN

tests/UnifiedSpecTests/Operation.php

@@ -803,6 +803,15 @@ private function executeForBucket(Bucket $bucket)
 
                 return stream_get_contents($bucket->openDownloadStream($args['id']));
 
+            case 'rename':
+                assertArrayHasKey('id', $args);
+                assertArrayHasKey('newFilename', $args);
+                assertIsString($args['newFilename']);
+
+                $bucket->rename($args['id'], $args['newFilename']);
+
+                return null;
+
             case 'uploadWithId':
                 assertArrayHasKey('id', $args);
                 $args['_id'] = $args['id'];

tests/UnifiedSpecTests/Util.php

@@ -134,6 +134,7 @@ final class Util
             'delete' => ['id'],
             'downloadByName' => ['filename', 'revision'],
             'download' => ['id'],
+            'rename' => ['id', 'newFilename'],
             'uploadWithId' => ['id', 'filename', 'source', 'chunkSizeBytes', 'disableMD5', 'contentType', 'metadata'],
             'upload' => ['filename', 'source', 'chunkSizeBytes', 'disableMD5', 'contentType', 'metadata'],
         ],