Issue #3088234 by tim.plunkett: Use $defaultTheme for using views_test_classy_subtheme

<?php

namespace Drupal\Tests\views_ui\FunctionalJavascript;

use Drupal\FunctionalJavascriptTests\WebDriverTestBase;

/**

 * Tests the admin UI AJAX interactions.

 *

 * @group views_ui

 */

class AdminAjaxTest extends WebDriverTestBase {

  /**

   * {@inheritdoc}

   */

  protected static $modules = [

    'views_ui',

  ];

  /**

   * {@inheritdoc}

   */

  protected $defaultTheme = 'views_test_classy_subtheme';

  /**

   * {@inheritdoc}

   */

  protected function setUp(): void {

    parent::setUp();

    $this->drupalLogin($this->createUser([

      'administer views',

    ]));

  }

  /**

   * Confirms that form_alter is triggered after AJAX rebuilds.

   */

  public function testAjaxRebuild() {

    \Drupal::service('theme_installer')->install(['views_test_classy_subtheme']);

    $this->config('system.theme')

      ->set('default', 'views_test_classy_subtheme')

      ->save();

    $page = $this->getSession()->getPage();

    $assert_session = $this->assertSession();

    $this->drupalGet('admin/structure/views/view/user_admin_people');

    $assert_session->pageTextContains('This is text added to the display tabs at the top');

    $assert_session->pageTextContains('This is text added to the display edit form');

    $page->clickLink('User: Name (Username)');

    $assert_session->waitForElementVisible('css', '.views-ui-dialog');

    $page->fillField('Label', 'New Title');

    $page->find('css', '.ui-dialog-buttonset button:contains("Apply")')->press();

    $assert_session->waitForElementRemoved('css', '.views-ui-dialog');

    $assert_session->pageTextContains('This is text added to the display tabs at the top');

    $assert_session->pageTextContains('This is text added to the display edit form');

  }

}

    $this->getSession()->executeScript("jQuery('{$selector} .contextual .trigger').toggleClass('visually-hidden');");

  }

  /**

   * Confirms that form_alter is triggered after ajax rebuilds.

   */

  public function testAjaxRebuild() {

    \Drupal::service('theme_installer')->install(['views_test_classy_subtheme']);

    $this->config('system.theme')

      ->set('default', 'views_test_classy_subtheme')

      ->save();

    $page = $this->getSession()->getPage();

    $assert_session = $this->assertSession();

    $this->drupalGet('admin/structure/views/view/content');

    $assert_session->pageTextContains('This is text added to the display tabs at the top');

    $assert_session->pageTextContains('This is text added to the display edit form');

    $page->clickLink('Content: Title (Title)');

    $assert_session->waitForElementVisible('css', '.views-ui-dialog');

    $page->fillField('Label', 'New Title');

    $page->find('css', '.ui-dialog-buttonset button:contains("Apply")')->press();

    $assert_session->waitForElementRemoved('css', '.views-ui-dialog');

    $assert_session->pageTextContains('This is text added to the display tabs at the top');

    $assert_session->pageTextContains('This is text added to the display edit form');

  }

  /**

   * Test if 'add' translations are filtered from multilingual display options.

   */