unit-test-38486.php

  /**
     * @ticket 38486
     */
    function test_class_applied_to_page_for_posts_on_custom_post_type() {
        $page_id = self::factory()->post->create( array( 'post_type' => 'page', 'post_title' => 'Home Page' ) );
        update_option( 'page_for_posts', $page_id );

        $cpt_id = self::factory()->post->create( array( 'post_type' => 'cpt', 'post_name' => 'cpt-name' ) );

        wp_update_nav_menu_item( $this->menu_id, 0, array(
            'menu-item-type' => 'post_type',
            'menu-item-object' => 'page',
            'menu-item-object-id' => $page_id,
            'menu-item-status' => 'publish',
        ));

        $permalink =  get_permalink( $cpt_id );
        $this->go_to( $permalink );

        $menu_items = wp_get_nav_menu_items( $this->menu_id );
        _wp_menu_item_classes_by_context( $menu_items );

        $classes = $menu_items[0]->classes;

        delete_option( 'page_for_posts' );

        $this->assertContains( 'current_page_parent', $classes );
    }

    /**
     * @ticket 38486
     */
    function test_class_applied_to_page_for_posts_on_custom_post_type_archive() {
        $page_id = self::factory()->post->create( array( 'post_type' => 'page', 'post_title' => 'Home Page' ) );
        update_option( 'page_for_posts', $page_id );

        register_post_type( 'cpt', array( 'has_archive' => true ) );
        
        $cpt_id = self::factory()->post->create( array( 'post_type' => 'cpt', 'post_name' => 'cpt-name' ) );

        wp_update_nav_menu_item( $this->menu_id, 0, array(
            'menu-item-type' => 'post_type',
            'menu-item-object' => 'page',
            'menu-item-object-id' => $page_id,
            'menu-item-status' => 'publish',
        ));

        $cpt_archive = get_post_type_archive_link( 'cpt' );
        $this->go_to( $cpt_archive );

        $menu_items = wp_get_nav_menu_items( $this->menu_id );
        _wp_menu_item_classes_by_context( $menu_items );

        $classes = $menu_items[0]->classes;

        delete_option( 'page_for_posts' );

        $this->assertContains( 'current_page_parent', $classes );
    }

    /**
    * @ticket 38486
    */
    function test_class_applied_to_page_for_posts_on_post() {
        $page_id = self::factory()->post->create( array( 'post_type' => 'page', 'post_title' => 'Home Page' ) );
        update_option( 'page_for_posts', $page_id );

        $post_id = self::factory()->post->create_and_get();
        
        wp_update_nav_menu_item( $this->menu_id, 0, array(
            'menu-item-type' => 'post_type',
            'menu-item-object' => 'page',
            'menu-item-object-id' => $page_id,
            'menu-item-status' => 'publish',
        ));

        $permalink =  get_permalink( $post_id );
        $this->go_to( $permalink );

        $menu_items = wp_get_nav_menu_items( $this->menu_id );
        _wp_menu_item_classes_by_context( $menu_items );

        $classes = $menu_items[0]->classes;

        delete_option( 'page_for_posts' );

        $this->assertContains( 'current_page_parent', $classes );
    }
  
    /**
    * @ticket 38486
    */
    function test_class_applied_to_page_for_posts_on_tag_archive() {
        $page_id = self::factory()->post->create( array( 'post_type' => 'page', 'post_title' => 'Home Page' ) );
        update_option( 'page_for_posts', $page_id );

        $tag_id = self::factory()->tag->create_and_get( array( 'name' => 'Tag', 'slug' => 'tag' ) );
        
        wp_update_nav_menu_item( $this->menu_id, 0, array(
            'menu-item-type' => 'post_type',
            'menu-item-object' => 'page',
            'menu-item-object-id' => $page_id,
            'menu-item-status' => 'publish',
        ));

        
        $tag_archive = get_term_link( $tag_id );
        $this->go_to( $tag_archive );

        $menu_items = wp_get_nav_menu_items( $this->menu_id );
        _wp_menu_item_classes_by_context( $menu_items );

        $classes = $menu_items[0]->classes;

        delete_option( 'page_for_posts' );

        $this->assertContains( 'current_page_parent', $classes );
    }

    /**
    * @ticket 38486
    */
    function test_class_applied_to_page_for_posts_on_category_archive() {
        $page_id = self::factory()->post->create( array( 'post_type' => 'page', 'post_title' => 'Home Page' ) );
        update_option( 'page_for_posts', $page_id );

        $cat_id = self::factory()->category->create_and_get( array( 'name' => 'Category', 'slug' => 'category' ) );
        
        wp_update_nav_menu_item( $this->menu_id, 0, array(
            'menu-item-type' => 'post_type',
            'menu-item-object' => 'page',
            'menu-item-object-id' => $page_id,
            'menu-item-status' => 'publish',
        ));

        $cat_archive = get_term_link( $cat_id );
        $this->go_to( $cat_archive );

        $menu_items = wp_get_nav_menu_items( $this->menu_id );
        _wp_menu_item_classes_by_context( $menu_items );

        $classes = $menu_items[0]->classes;

        delete_option( 'page_for_posts' );

        $this->assertContains( 'current_page_parent', $classes );
    }

    /**
    * @ticket 38486
    */
    function test_class_not_applied_to_page_for_posts_on_page() {
        $page_id1 = self::factory()->post->create( array( 'post_type' => 'page', 'post_title' => 'Home Page' ) );
        $page_id2 = self::factory()->post->create( array( 'post_type' => 'page', 'post_title' => 'Test Page' ) );
        
    update_option( 'page_for_posts', $page_id1 );
            
        wp_update_nav_menu_item( $this->menu_id, 0, array(
            'menu-item-type' => 'post_type',
            'menu-item-object' => 'page',
            'menu-item-object-id' => $page_id1,
            'menu-item-status' => 'publish',
        ));

        wp_update_nav_menu_item( $this->menu_id, 0, array(
            'menu-item-type' => 'post_type',
            'menu-item-object' => 'page',
            'menu-item-object-id' => $page_id2,
            'menu-item-status' => 'publish',
        ));

        $permalink =  get_permalink( $page_id2 );
        $this->go_to( $permalink );

        $menu_items = wp_get_nav_menu_items( $this->menu_id );
        _wp_menu_item_classes_by_context( $menu_items );

        $homepage_classes = $menu_items[0]->classes;
        $testpage_classes = $menu_items[1]->classes;
        
        delete_option( 'page_for_posts' );

        $this->assertNotContains( 'current_page_parent', $homepage_classes );
        $this->assertNotContains( 'current-menu-item', $homepage_classes );
        $this->assertContains( 'current-menu-item', $testpage_classes );
        $this->assertNotContains( 'current_page_parent', $testpage_classes );
    }
}