assertNoHelpLink example

$this->assertHelpLink(
        $fieldset,
        'media add page',
        [
          'target' => '_blank',
          'href' => $url->toString(),
        ]
      );
    }
    else {
      $this->assertNoHelpTexts([$create_header, $create_help]);
      $this->assertNoHelpLink($fieldset, 'media add page');
    }

    if ($list_access) {
      $this->assertHelpTexts([$list_text], $fieldset_selector);
      $this->assertHelpLink(
        $fieldset,
        'media list',
        [
          'target' => '_blank',
          'href' => Url::fromRoute('entity.media.collection')->toString(),
        ]
      );