getEditorButton example

$this->assertFalse($drupalmedia->hasClass('.ck-widget_selected'));

    // Assert the "editingDowncast" HTML before making changes.     $assert_session->elementExists('css', '.ck-content .ck-widget.drupal-media > [data-drupal-media-preview]');

    // Assert the "dataDowncast" HTML before making changes.     $xpath = new \DOMXPath($this->getEditorDataAsDom());
    $this->assertNotEmpty($xpath->query('//drupal-media'));
    $this->assertEmpty($xpath->query('//a'));

    // Assert the link button is present and not pressed.     $link_button = $this->getEditorButton('Link');
    $this->assertSame('false', $link_button->getAttribute('aria-pressed'));

    // Wait for the preview to load.     $preview = $assert_session->waitForElement('css', '.ck-content .ck-widget.drupal-media [data-drupal-media-preview="ready"]');
    $this->assertNotEmpty($preview);

    // Tests linking Drupal media.     $drupalmedia->click();
    $this->assertTrue($drupalmedia->hasClass('ck-widget_selected'));
    $this->assertEditorButtonEnabled('Link');
    // Assert structure of image toolbar balloon.

$assert_session = $this->assertSession();
    $this->assertNotEmpty($assert_session->waitForElement('css', '.ck-editor'));
  }

  /** * Clicks a CKEditor button. * * @param string $name * The name of the button, such as `drupallink`, `source`, etc. */
  protected function pressEditorButton($name) {
    $this->getEditorButton($name)->click();
  }

  /** * Waits for a CKEditor button and returns it when available and visible. * * @param string $name * The name of the button, such as `drupallink`, `source`, etc. * * @return \Behat\Mink\Element\NodeElement|null * The page element node if found, NULL if not. */
  

$src = basename($this->imageAttributes()['src']);
    // Assert the "editingDowncast" HTML before making changes.     $assert_session->elementExists('css', '.ck-content .ck-widget.' . $expected_widget_class . ' > img[src*="' . $src . '"][alt="drupalimage test image"]');

    // Assert the "dataDowncast" HTML before making changes.     $xpath = new \DOMXPath($this->getEditorDataAsDom());
    $this->assertNotEmpty($xpath->query('//img[@alt="drupalimage test image"]'));
    $this->assertEmpty($xpath->query('//a'));

    // Assert the link button is present and not pressed.     $link_button = $this->getEditorButton('Link');
    $this->assertSame('false', $link_button->getAttribute('aria-pressed'));

    // Tests linking images.     $drupalimage->click();
    $this->assertTrue($drupalimage->hasClass('ck-widget_selected'));
    $this->assertEditorButtonEnabled('Link');
    // Assert structure of image toolbar balloon.     $this->assertVisibleBalloon('.ck-toolbar[aria-label="Image toolbar"]');
    $link_image_button = $this->getBalloonButton('Link image');
    // Click the "Link image" button.     $this->assertSame('false', $link_image_button->getAttribute('aria-pressed'));