Ticket #10676: 10676.2.diff

src/wp-includes/class-walker-category.php

@@ -170 +170 @@
                                         } elseif ( $category->term_id == $_current_term->parent ) {
                                                 $css_classes[] = 'current-cat-parent';
                                         }
+                                        while ( $_current_term->parent ) {
+                                                if ( $category->term_id == $_current_term->parent ) {
+                                                        $css_classes[] =  'current-cat-ancestor';
+                                                        break;
+                                                }
+                                                $_current_term = get_term( $_current_term->parent, $category->taxonomy );
+                                        }
                                 }
                         }
 

tests/phpunit/tests/category/wpListCategories.php

@@ -307 +307 @@
 
                 $this->assertNotContains( '<li class="cat-item cat-item-' . $child2 . '">', $actual );
         }
+
+        /**
+         * @ticket 10676
+         */
+        public function test_class_containing_current_cat_ancestor() {
+                $parent = self::factory()->category->create( array( 'name' => 'Parent', 'slug' => 'parent' ) );
+                $child = self::factory()->category->create( array( 'name' => 'Child', 'slug' => 'child', 'parent' => $parent ) );
+                $child2 = self::factory()->category->create( array( 'name' => 'Child 2', 'slug' => 'child2', 'parent' => $parent ) );
+                $grandchild = self::factory()->category->create( array( 'name' => 'Grand Child', 'slug' => 'child', 'parent' => $child ) );
+
+                $actual = wp_list_categories( array(
+                        'echo'             => 0,
+                        'hide_empty'       => false,
+                        'current_category' => $grandchild,
+                ) );
+
+                $this->assertRegExp( '/class="[^"]*cat-item-' . $parent . '[^"]*current-cat-ancestor[^"]*"/', $actual );
+                $this->assertRegExp( '/class="[^"]*cat-item-' . $child . '[^"]*current-cat-ancestor[^"]*"/', $actual );
+                $this->assertNotRegExp( '/class="[^"]*cat-item-' . $grandchild . '[^"]*current-cat-ancestor[^"]*"/', $actual );
+                $this->assertNotRegExp( '/class="[^"]*cat-item-' . $child2 . '[^"]*current-cat-ancestor[^"]*"/', $actual );
+        }
 }