Ticket #42094: 42094.1.diff

tests/phpunit/tests/rest-api.php

@@ -430 +430 @@
         }
 
         /**
+                * Ensure that nested fields may be whitelisted with request['_fields'].
+                */
+        public function test_rest_filter_response_fields_nested_field_filter() {
+                $response = new WP_REST_Response();
+
+                $response->set_data( array(
+                        'a' => 0,
+                        'b' => array(
+                                '1' => 1,
+                                '2' => 2,
+                        ),
+                        'c' => 3,
+                        'd' => array(
+                                '4' => 4,
+                                '5' => 5,
+                        ),
+                ) );
+                $request = array(
+                        '_fields' => array( 'b.1', 'c', 'd.5' )
+                );
+
+                $response = rest_filter_response_fields( $response, null, $request );
+                $this->assertEquals( array(
+                        'b' => array(
+                                '1' => 1,
+                        ),
+                        'c' => 3,
+                        'd' => array(
+                                '5' => 5,
+                        ),
+                ), $response->get_data() );
+        }
+
+        /**
          * The get_rest_url function should return a URL consistently terminated with a "/",
          * whether the blog is configured with pretty permalink support or not.
          */