class DisplayAttachmentTest

class DisplayAttachmentTest extends UITestBase {
  
  /**
   * Views used by this test.
   *
   * @var array
   * .
   */
  public static $testViews = [
    'test_attachment_ui',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * Tests the attachment UI.
   */
  public function testAttachmentUI() {
    $this->drupalGet('admin/structure/views/view/test_attachment_ui/edit/attachment_1');
    $this->assertSession()
      ->pageTextContains('Not defined');
    $attachment_display_url = 'admin/structure/views/nojs/display/test_attachment_ui/attachment_1/displays';
    $this->drupalGet($attachment_display_url);
    // Display labels should be escaped.
    $this->assertSession()
      ->assertEscaped('<em>Page</em>');
    $this->assertSession()
      ->checkboxNotChecked("edit-displays-default");
    $this->assertSession()
      ->checkboxNotChecked("edit-displays-page-1");
    // Save the attachments and test the value on the view.
    $this->drupalGet($attachment_display_url);
    $this->submitForm([
      'displays[page_1]' => 1,
    ], 'Apply');
    // Options summary should be escaped.
    $this->assertSession()
      ->assertEscaped('<em>Page</em>');
    $this->assertSession()
      ->responseNotContains('<em>Page</em>');
    $this->assertSession()
      ->elementAttributeContains('xpath', '//a[@id = "views-attachment-1-displays"]', 'title', 'Page');
    $this->submitForm([], 'Save');
    $view = Views::getView('test_attachment_ui');
    $view->initDisplay();
    $this->assertEquals([
      'page_1',
    ], array_keys(array_filter($view->displayHandlers
      ->get('attachment_1')
      ->getOption('displays'))), 'The attached displays got saved as expected');
    $this->drupalGet($attachment_display_url);
    $this->submitForm([
      'displays[default]' => 1,
      'displays[page_1]' => 1,
    ], 'Apply');
    $this->assertSession()
      ->elementAttributeContains('xpath', '//a[@id = "views-attachment-1-displays"]', 'title', 'Multiple displays');
    $this->submitForm([], 'Save');
    $view = Views::getView('test_attachment_ui');
    $view->initDisplay();
    $this->assertEquals([
      'default',
      'page_1',
    ], array_keys($view->displayHandlers
      ->get('attachment_1')
      ->getOption('displays')), 'The attached displays got saved as expected');
  }
  
  /**
   * Tests the attachment working after the attached page was deleted.
   */
  public function testRemoveAttachedDisplay() {
    // Create a view.
    $view = $this->randomView();
    $path_prefix = 'admin/structure/views/view/' . $view['id'] . '/edit';
    $attachment_display_url = 'admin/structure/views/nojs/display/' . $view['id'] . '/attachment_1/displays';
    // Open the Page display and create the attachment display.
    $this->drupalGet($path_prefix . '/page_1');
    $this->submitForm([], 'Add Attachment');
    $this->assertSession()
      ->pageTextContains('Not defined');
    // Attach the Attachment to the Page display.
    $this->drupalGet($attachment_display_url);
    $this->submitForm([
      'displays[page_1]' => 1,
    ], 'Apply');
    $this->submitForm([], 'Save');
    // Open the Page display and mark it as deleted.
    $this->drupalGet($path_prefix . '/page_1');
    $this->assertSession()
      ->buttonExists('edit-displays-settings-settings-content-tab-content-details-top-actions-delete');
    $this->drupalGet($path_prefix . '/page_1');
    $this->submitForm([], 'Delete Page');
    // Open the attachment display and save it.
    $this->drupalGet($path_prefix . '/attachment_1');
    $this->submitForm([], 'Save');
    // Check that there is no warning for the removed page display.
    $this->assertSession()
      ->pageTextNotContains("Plugin ID 'page_1' was not found.");
    // Check that the attachment is no longer linked to the removed display.
    $this->assertSession()
      ->pageTextContains('Not defined');
  }

}