php-webdriver VS Symfony Panther

The modernization from packaging a downloadable distribution of an install profile on Drupal.org as a Distribution project type packaged with drush make to a distributing just the Composer files from General projects opens up the option to use of dependencies that aren't strictly GPL compatible like https://github.com/apimatic/jsonmapper (OSL-3.0) or https://github.com/instaclick/php-webdriver (Apache-2.0).

Use some library with WebDriver API (f.ex. Symfony Panther if you want to stick to PHP, or Playwright) to run tests against your WP backend

Personal experience: - don’t use Behat unless you really needed a “story telling”, it has a intermediate layer Gherkin that you’ll need to code. You can write “Given/When/Then” steps but you’ll also need to write “php code” that will interpret this step. - using real browser be prepared for instability - any interaction with JavaScript can broken/delay execution - be prepared that this tests are call functional they are the most expensive test, so start small unit then integration and only then functional. - use https://github.com/symfony/panther or https://codeception.com/ you’ll have phpunit alike interface to run them. - you’ll need to reset state of your database each time to provide “isolation” and stability

For headless browser testing with symfony there is symfony panther (https://github.com/symfony/panther)

I did something similar with Symfony Panther combined with ChromeDriver.

For tools, I use PHPUnit, Symfony's PHPUnit helper classes, and Panther (for frontend/headless-browser testing, mostly JS behavior)

If you are comfortable with using composer and third party libraries I would suggest checking out https://github.com/symfony/panther

I like this one recently https://github.com/symfony/panther

Panther

What you're looking for is a package to control a "headless browser". The best one IMO is symfony/panther: https://github.com/symfony/panther