Issue #3463548 by catch, smustgrave: Consolidate methods on FormElementsLabelsTest

   */

  protected $defaultTheme = 'stark';

  /**

   * Tests form elements.

   */

  public function testFormElements(): void {

    $this->testFormLabels();

    $this->testTitleEscaping();

    $this->testFormDescriptions();

    $this->testFormsInThemeLessEnvironments();

  }

  /**

   * Tests form element rendering.

   *

   * - Prefix and suffix render element placement.

   * - Form element title attributes.

   */

  public function testFormLabels(): void {

  protected function testFormLabels(): void {

    $this->drupalGet('form_test/form-labels');

    // Check that the checkbox/radio processing is not interfering with

  /**

   * Tests XSS-protection of element labels.

   */

  public function testTitleEscaping(): void {

  protected function testTitleEscaping(): void {

    $this->drupalGet('form_test/form-labels');

    foreach (FormTestLabelForm::$typesWithTitle as $type) {

      $this->assertSession()->responseContains("$type alert('XSS') is XSS filtered!");

  /**

   * Tests different display options for form element descriptions.

   */

  public function testFormDescriptions(): void {

  protected function testFormDescriptions(): void {

    $this->drupalGet('form_test/form-descriptions');

    // Check #description placement with #description_display='after'.

  /**

   * Tests forms in theme-less environments.

   */

  public function testFormsInThemeLessEnvironments(): void {

  protected function testFormsInThemeLessEnvironments(): void {

    $form = $this->getFormWithLimitedProperties();

    $render_service = $this->container->get('renderer');

    // This should not throw any notices.