Ticket #22448: 22448.unit-tests.diff

tests/post/query.php

@@ -496 +496 @@
 
                 $this->assertEquals( 1 , count( $posts ) );
         }
+
+        /**
+         * @ticket 22448
+         */
+        function test_the_posts_filter() {
+                // Create posts and clear their caches.
+                $post_ids = $this->factory->post->create_many( 10 );
+                foreach ( $post_ids as $post_id )
+                        clean_post_cache( $post_id );
+
+                add_filter( 'the_posts', array( $this, 'the_posts_filter' ) );
+
+                $query = new WP_Query( array(
+                        'post_type' => 'post',
+                        'posts_per_page' => 5,
+                ) );
+
+                // Sixth post added in filter
+                $this->assertEquals( 6, count( $query->posts ) );
+                $this->assertEquals( 6, $query->post_count );
+
+                foreach ( $query->posts as $post ) {
+
+                        // posts are WP_Post objects
+                        $this->assertTrue( is_a( $post, 'WP_Post' ) );
+
+                        // filters are raw
+                        $this->assertEquals( 'raw', $post->filter );
+
+                        // custom data added in the_posts filter is preserved
+                        $this->assertEquals( array( $post->ID, 'custom data' ), $post->custom_data );
+                }
+
+                remove_filter( 'the_posts', array( $this, 'the_posts_filter' ) );
+        }
+
+        /**
+         * Use with the_posts filter, appends a post and adds some custom data.
+         */
+        function the_posts_filter( $posts ) {
+                $posts[] = clone $posts[0];
+
+                // Add some custom data to each post.
+                foreach ( $posts as $key => $post )
+                        $posts[ $key ]->custom_data = array( $post->ID, 'custom data' );
+
+                return $posts;
+        }
 }