Ticket #28026: unittest.28026.diff

tests/phpunit/tests/link.php

@@ -286 +286 @@
                 $relative_link = wp_make_link_relative( $link );
                 $this->assertEquals( '/this-is-a-test/?redirect=https://example.org/a-different-test-post/', $relative_link );
         }
+
+        /**
+         * @ticket 28026
+         */
+        function test_same_date_posts_sort_by_id() {
+                // Need some sample posts to test adjacency
+                $post_one = $this->factory->post->create_and_get( array(
+                        'post_title' => 'First',
+                        'post_date' => '2012-01-01 12:00:00'
+                ) );
+
+                $post_two = $this->factory->post->create_and_get( array(
+                        'post_title' => 'Second',
+                        'post_date' => '2012-02-01 12:00:00'
+                ) );
+
+                $post_three = $this->factory->post->create_and_get( array(
+                        'post_title' => 'Third',
+                        'post_date' => '2012-02-01 12:00:00'
+                ) );
+
+                // Assign some terms
+                wp_set_object_terms( $post_one->ID, 'wordpress', 'category', false );
+                wp_set_object_terms( $post_two->ID, 'wordpress', 'category', false );
+                wp_set_object_terms( $post_three->ID, 'wordpress', 'category', false );
+
+                // Test equal date post adjacency
+                $this->go_to( get_permalink( $post_two->ID ) );
+
+                $this->assertEquals( $post_one, get_adjacent_post( false, '', true ) );
+
+                $this->go_to( get_permalink( $post_three->ID ) );
+
+                $this->assertEquals( $post_two, get_adjacent_post( false, '', true ) );
+
+        }
 }