ProcessingTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\system\FunctionalJavascript\Batch;

use Drupal\FunctionalJavascriptTests\WebDriverTestBase;

/**
 * @group Batch
 */
class ProcessingTest extends WebDriverTestBase {
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'batch_test',
    'test_page_test',
  ];
  
  /**
   * {@inheritdoc}
   *
   * @todo Use the stark theme in https://drupal.org/i/3407067.
   */
  protected $defaultTheme = 'olivero';
  
  /**
   * Tests that a link to the error page is shown.
   */
  public function testLinkToErrorPageAppears() : void {
    $edit = [
      'batch' => 'batch_8',
    ];
    $this->drupalGet('batch-test');
    $this->submitForm($edit, 'Submit');
    $this->assertNotNull($this->assertSession()
      ->waitForLink('the error page'));
    $this->assertSession()
      ->assertNoEscaped('<');
    $this->assertSession()
      ->responseContains('Exception in batch');
    $this->clickLink('the error page');
    $this->assertSession()
      ->pageTextContains('Redirection successful.');
  }

}