17 August 2023

Dealing with ShadowDOM with jQuery

Recently we started testing https://urban.org and we wanted to take screenshots of the dropdown menu and search box, but they were implemented as components with shadowDOM.

double shadow dom

 

 

Thankfully there is a way to interact with elements in shadowDOM with jQuery.

if (window.location.hash == '#menu') {
  var header = jQuery('lbj-header')[0].shadowRoot;
  jQuery(header).find('.header__menu-toggle').click();
}

Besides opening menu it was also possible to test clicking on the search box and even showing the autocomplete dropdown in the search.

 

urban.org expanded menu, search box

Visual Testing of Patternlab and Drupal

Because both Patternlab and Drupal 8 can use twig as a rendering engine it is possible to build a theme to be based on Patternlab’s components. It makes very easy to apply visual regression testing to Patternlab’s demo site.
6 mins read read

Testing tabs, mobile menu, sliders

A lot web pages right now have some elements that gets activated by clicking on the pages. For example, sliders, or dropdown menu, or tabs. How to take screenshots of those pages too?
4 mins read read

Make some pages for Visual Regression Testing only in Drupal

When you do visual regression testing, it can be a great idea to have some dedicated pages with all the different elements of your site combined. So instead of running screenshots of many pages on your site, you could do just a few and cover all the UI. These are also sometimes called style guides.

On the other hand, you do not want your site visitors to accidentally open these pages and be surprised by what they are for.

1 min read

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