[5.x] Refactor and improve tests

We now have responsive formatter tests and tests are partially refactored!

• Now we just need to remove the drupalci.yml and use cnd in all tests instead
• Check that every media test clicks on the image and does some basic assertion
• Fix up the image file tests (we can do that in a follow-up issue)

@Grevil: Could Leon do this or too complicated?

Would definitely need a lot of explaining. Probably a bit too much.

Okay you decide please. If partially or entirely or not at all! What's most helpful for you to get things done. :)

Now we just need to remove the drupalci.yml and use cnd in all tests instead

This is now also fixed, as of the recent move to the gitlab-ci.yml.

@bobi-mel, thanks for trying to fix the tests! Although, this issue is targeted at improving and refactoring the tests! Could you please provide your MR in 🐛 Fix broken tests Fixed ?

@Grevil
I moved the changes to fix the tests to 🐛 Fix broken tests Fixed . But without the fixes in photoswipe.setting.yml, the test will fail at the Drupal initiation stage. So to start working on improving the tests, we need to fix the existing issues in the tests