public function test_preview_inserted() {
    do_action( 'customize_register', $this->wp_customize );

    $menu_id    = -123;
    $post_value = array(
      'name'        => 'New Menu Name 1 \\o/',
      'description' => 'New Menu Description 1 \\o/',
      'parent'      => 0,
      'auto_add'    => false,
    );
    $setting_id = "nav_menu[$menu_id]";
    $setting    = new WP_Customize_Nav_Menu_Setting( $this->wp_customize, $setting_id );

    $this->wp_customize->set_post_value( $setting->id, $post_value );
    $setting->preview();
    $value = $setting->value();
    $this->assertSame( $post_value, $value );

    $term = (array) wp_get_nav_menu_object( $menu_id );
    $this->assertNotEmpty( $term );
    $this->assertNotWPError( $term );
    $this->assertSameSets( $post_value, wp_array_slice_assoc( $term, array_keys( $value ) ) );
    $this->assertSame( $menu_id, $term['term_id'] );
    $this->assertSame( $menu_id, $term['term_taxonomy_id'] );

    $menu_object = wp_get_nav_menu_object( $menu_id );
    $this->assertEquals( (object) $term, $menu_object );
    $this->assertSame( $post_value['name'], $menu_object->name );

    $nav_menu_options = $this->get_nav_menu_items_option();
    $this->assertNotContains( $menu_id, $nav_menu_options['auto_add'] );

    $menus     = wp_get_nav_menus();
    $menus_ids = wp_list_pluck( $menus, 'term_id' );
    $i         = array_search( $menu_id, $menus_ids, true );
    $this->assertIsInt( $i, 'Insert-previewed menu was not injected into wp_get_nav_menus()' );
    $filtered_menu = $menus[ $i ];
    $this->assertSame( 'New Menu Name 1 \\o/', $filtered_menu->name );
  }