AdminAjaxTest.php

<?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');
    }

}