Ticket #22192: 22192.2.diff

tests/tests/meta.php

@@ -9 +9 @@
                 $this->author = new WP_User( $this->factory->user->create( array( 'role' => 'author' ) ) );
                 $this->meta_id = add_metadata( 'user', $this->author->ID, 'meta_key', 'meta_value' );
                 $this->delete_meta_id = add_metadata( 'user', $this->author->ID, 'delete_meta_key', 'delete_meta_value' );
+                $this->post_id = wp_insert_post( array( 'post_type' => 'page' ) );
         }
 
         function _meta_sanitize_cb ( $meta_value, $meta_key, $meta_type ) {
@@ -82 +83 @@
                 $this->assertFalse( metadata_exists( 'user',  1234567890, 'foobarbaz' ) );
                 $this->assertFalse( metadata_exists( 'user',  1234567890, 'meta_key' ) );
         }
+        
+        /**
+         * Tests if you don't hit the database if you update a meta right after you added it
+         * @ticket 22192
+         */
+        function test_updating_after_saving() {
+                global $wpdb;
+                
+                $start_count = $wpdb->num_queries;
+                $values = array( 'somevalue', 1, 0, true, false, 60, array() );
+                $update_result = false;
+                
+                foreach ( $values as $key => $value ) {
+                        add_post_meta( $this->post_id, 'unique-' . $key, $value );
+                        $update_result = $update_result || update_post_meta( $this->post_id, 'unique-' . $key, $value );
+                }
+                
+                $total_queries = $wpdb->num_queries - $start_count;
+                
+                // There should be only 1 query each because we save with "add_post_meta" 
+                // and update_post_meta should see it in the cache
+                //
+                // And 1 query extra for filling the cache all the meta values ( filling the cache )
+                $this->assertEquals( count( $values ) + 1, $total_queries );
+                $this->assertFalse( $update_result );
+                
+        }
 
         /**
          * @ticket 18158