class ViewsEscapingTest

class ViewsEscapingTest extends ViewTestBase {
  
  /**
   * Views used by this test.
   *
   * @var array
   */
  public static $testViews = [
    'test_page_display',
    'test_field_header',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * {@inheritdoc}
   *
   * We need theme_test for testing against test_basetheme and test_subtheme.
   *
   * @var array
   *
   * {@inheritdoc}
   */
  protected static $modules = [
    'views',
    'theme_test',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp($import_test_views = TRUE, $modules = [
    'views_test_config',
  ]) : void {
    parent::setUp(TRUE, $modules);
    $this->enableViewsTestModule();
  }
  
  /**
   * Tests for incorrectly escaped markup in the views-view-fields.html.twig.
   */
  public function testViewsViewFieldsEscaping() {
    // Test with system theme using theme function.
    $this->drupalGet('test_page_display_200');
    // Assert that there are no escaped '<'s characters.
    $this->assertSession()
      ->assertNoEscaped('<');
    // Install theme to test with template system.
    \Drupal::service('theme_installer')->install([
      'views_test_theme',
    ]);
    // Make base theme default then test for hook invocations.
    $this->config('system.theme')
      ->set('default', 'views_test_theme')
      ->save();
    $this->assertEquals('views_test_theme', $this->config('system.theme')
      ->get('default'));
    $this->drupalGet('test_page_display_200');
    // Assert that we are using the correct template.
    $this->assertSession()
      ->pageTextContains('force');
    // Assert that there are no escaped '<'s characters.
    $this->assertSession()
      ->assertNoEscaped('<');
  }
  
  /**
   * Tests for incorrectly escaped markup in a header label on a display table.
   */
  public function testViewsFieldHeaderEscaping() {
    // Test with a field header label having an html element wrapper.
    $this->drupalGet('test_field_header');
    // Assert that there are no escaped '<'s characters.
    $this->assertSession()
      ->assertNoEscaped('<');
    // Test with a field header label having a XSS test as a wrapper.
    $this->drupalGet('test_field_header_xss');
    // Assert that harmful tags are escaped in header label.
    $this->assertSession()
      ->responseNotContains('<script>alert("XSS")</script>');
  }

}