getEditorDataAsDom example

  public function testEmphasis() {
    $page = $this->getSession()->getPage();
    $assert_session = $this->assertSession();

    $this->drupalGet($this->host->toUrl('edit-form'));
    $this->waitForEditor();

    $emphasis_element = $assert_session->waitForElementVisible('css', '.ck-content p em');
    $this->assertEquals('test!', $emphasis_element->getText());

    $xpath = new \DOMXPath($this->getEditorDataAsDom());
    $emphasis_source = $xpath->query('//p/em');
    $this->assertNotEmpty($emphasis_source);
    $this->assertEquals('test!', $emphasis_source[0]->textContent);
    $page->pressButton('Save');

    $assert_session->responseContains('<p>This is a <em>test!</em></p>');
  }

  /** * Tests that arbitrary attributes are allowed via GHS. */
  

$this->assertFalse($upcasted_media->hasAttribute('data-foo'));
    $this->assertNotEmpty($preview = $assert_session->waitForElementVisible('css', '.ck-widget.drupal-media > [data-drupal-media-preview="ready"] > .media', 30000));
    $this->assertEquals('bar', $preview->getAttribute('data-foo'));

    // Confirm that the media is wrapped by the div on the editing view.     $assert_session->elementExists('css', 'div[data-bar="baz"] > .drupal-media');

    // Confirm data-foo is not stripped from source.     $this->assertSourceAttributeSame('data-foo', 'bar');

    // Confirm that drupal-media is wrapped by the div.     $editor_dom = new \DOMXPath($this->getEditorDataAsDom());
    $this->assertNotEmpty($editor_dom->query('//div[@data-bar="baz"]/drupal-media'));
  }

  /** * Ensures arbitrary attributes can be added on links wrapping media via GHS. * * @dataProvider providerLinkability */
  public function testLinkedMediaArbitraryHtml(bool $unrestricted): void {
    $assert_session = $this->assertSession();

    

'Show Arrakis media',
    ];
    foreach ($tabs as $key => $tab) {
      $this->assertSame($expected_tab_order[$key], $tab->getText());
    }

    $assert_session->pageTextContains('0 of 1 item selected');
    $assert_session->elementExists('css', '.js-media-library-item')->click();
    $assert_session->pageTextContains('1 of 1 item selected');
    $assert_session->elementExists('css', '.ui-dialog-buttonpane')->pressButton('Insert selected');
    $this->assertNotEmpty($assert_session->waitForElementVisible('css', $media_preview_selector, 1000));
    $xpath = new \DOMXPath($this->getEditorDataAsDom());
    $drupal_media = $xpath->query('//drupal-media')[0];
    $expected_attributes = [
      'data-entity-type' => 'media',
      'data-entity-uuid' => $this->media->uuid(),
    ];
    foreach ($expected_attributes as $name => $expected) {
      $this->assertSame($expected, $drupal_media->getAttribute($name));
    }
    $this->assertEditorButtonEnabled('Undo');
    $this->pressEditorButton('Undo');
    $this->assertEmpty($assert_session->waitForElementVisible('css', $media_preview_selector, 1000));
    

$caption_on_button->click();
    $caption = $assert_session->waitForElementVisible('css', 'figure.table > figcaption');
    $this->assertEquals($this->captionText, $caption->getText());

    $this->assertTableStructureInRenderedPage();
  }

  /** * Confirms the structure of the table within the editor data. */
  public function assertTableStructureInEditorData(): void {
    $xpath = new \DOMXPath($this->getEditorDataAsDom());
    $this->assertEmpty($xpath->query('//figure'), 'There should be no figure tag in editor data');
    $this->assertNotEmpty($xpath->query('//table/caption'), 'A caption should be the immediate child of <table>');
    $this->assertEquals($this->captionText, (string) $xpath->query('//table/caption')[0]->nodeValue, "The caption should say {$this->captionText}");
    $this->assertNotEmpty($xpath->query('//table/tbody/tr/td'), 'There is an expected table structure.');
    $this->assertEquals($this->tableCellText, (string) $xpath->query('//table/tbody/tr/td')[0]->nodeValue, "The table cell should say {$this->tableCellText}");
  }

  /** * Confirms the saved page has the expected table structure. */
  public function assertTableStructureInRenderedPage(): void {
    

foreach ($test_cases as $test_case) {
        [$markup, $expected] = $test_case;
        $this->host->body->value = $markup;
        $this->host->save();

        $this->drupalGet($this->host->toUrl('edit-form'));
        $this->waitForEditor();

        // Ensure that the image is rendered in preview.         $this->assertNotEmpty($this->assertSession()->waitForElementVisible('css', ".ck-content .ck-widget img"));
        $editor_dom = $this->getEditorDataAsDom();
        $expected_dom = Html::load($expected);
        $xpath = new \DOMXPath($this->getEditorDataAsDom());
        $this->assertEquals($expected_dom->getElementsByTagName('body')->item(0)->C14N(), $editor_dom->getElementsByTagName('body')->item(0)->C14N());

        // Ensure the test attribute is persisted on downcast.         if ($attribute_to_retain) {
          $this->assertNotEmpty($xpath->query("//img[@$attribute_to_retain]"));
        }
      }
    }
  }