class UnsavedPreviewTest

class UnsavedPreviewTest extends UITestBase {
  
  /**
   * Views used by this test.
   *
   * @var array
   */
  public static $testViews = [
    'content',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * An admin user with the 'administer views' permission.
   *
   * @var \Drupal\user\UserInterface
   */
  protected $adminUser;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'node',
    'views_ui',
  ];
  
  /**
   * Sets up a Drupal site for running functional and integration tests.
   */
  protected function setUp($import_test_views = TRUE, $modules = [
    'views_test_config',
  ]) : void {
    parent::setUp(FALSE, $modules);
    $this->adminUser = $this->drupalCreateUser([
      'administer views',
    ]);
    $this->drupalLogin($this->adminUser);
  }
  
  /**
   * Tests previews of unsaved new page displays.
   */
  public function testUnsavedPageDisplayPreview() {
    $this->drupalCreateContentType([
      'type' => 'page',
    ]);
    for ($i = 0; $i < 5; $i++) {
      $this->drupalCreateNode();
    }
    $this->drupalGet('admin/structure/views/view/content');
    $this->assertSession()
      ->statusCodeEquals(200);
    $this->submitForm([], 'Add Page');
    $this->assertSession()
      ->statusCodeEquals(200);
    $this->drupalGet('admin/structure/views/nojs/display/content/page_2/path');
    $this->assertSession()
      ->statusCodeEquals(200);
    $this->submitForm([
      'path' => 'foobarbaz',
    ], 'Apply');
    $this->assertSession()
      ->statusCodeEquals(200);
    $this->submitForm([], 'Update preview');
    $this->assertSession()
      ->statusCodeEquals(200);
    $this->assertSession()
      ->pageTextContains('This display has no path');
    $this->drupalGet('admin/structure/views/view/content/edit/page_2');
    $this->assertSession()
      ->statusCodeEquals(200);
    $this->submitForm([], 'Save');
    $this->assertSession()
      ->statusCodeEquals(200);
    $this->submitForm([], 'Update preview');
    $this->assertSession()
      ->statusCodeEquals(200);
    $this->assertSession()
      ->linkByHrefExists('foobarbaz');
  }

}