Ticket #22192: 22192.1.diff

tests/tests/meta/query.php

@@ -6 +6 @@
  */
 class Tests_Meta_Query extends WP_UnitTestCase {
 
+        private $query_count;
+
         function test_default_relation() {
                 $query = new WP_Meta_Query( array( array( 'key' => 'abc' ) ) );
 
@@ -105 +107 @@
                 $this->assertEquals( 1, substr_count( $sql['where'], "$wpdb->postmeta.meta_key = 'my_third_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;
+                
+                $this->query_count = 0;
+                $post_id = wp_insert_post( array( 'post_type' => 'page' ) );
+                
+                add_filter( 'query', array( $this, 'query_counter' ) );
+                
+                $values = array( 'somevalue', 1, 0, true, false, 60, array() );
+                $update_result = false;
+                
+                foreach ( $values as $key => $value ) {
+                        add_post_meta( $post_id, 'unique-' . $key, $value );
+                        $update_result = $update_result || update_post_meta( $post_id, 'unique-' . $key, $value );
+                }
+                
+                // 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, $this->query_count );
+                $this->assertFalse( $update_result );
+                
+        }
+        
+        /**
+         * Helper function to count queries, meant to be called by 'query' action
+         */
+        public function query_counter( $query ) {
+                var_dump( $query );
+                $this->query_count++;
+                return $query;
+        }
 }