Fix broken tests

[danepowell]

Q	A
Branch	master for features and deprecations
Bug fix?	yes/no
New feature?	yes/no
BC breaks?	yes/no
Deprecations?	yes/no
Documented?	yes/no
Fixed tickets	comma-separated list of tickets fixed by the PR, if any

Tests are broken in HEAD, caused by some Symfony components recently upgrading from 5 to 6.

I fixed the issues in Psalm per advice in these upstream issues:

• Add stub for Interface \UnitEnum not found in PHP 8.0 vimeo/psalm#7738
• Psalm reports undefined class UnitEnum on PHP 8.0 symfony/symfony#45609

The bigger issue is a Symfony EventDispatcher deprecated constructor that apparently went unnoticed and was recently completely removed. I'm unable to grok the documentation on how to fix it:

• symfony/event-dispatcher@0bc2e0d
• https://symfony.com/doc/current/components/event_dispatcher.html

Have you ever considered implementing deprecation scanning or committing your composer.lock and using Dependabot or Violinist to update dependencies? This wouldn't avoid these problems, but it would at least catch them earlier and pinpoint the cause without breaking tests in HEAD.

New Task Checklist:

• Are the dependencies added to the composer.json suggestions?
• Is the doc/tasks.md file updated?
• Are the task parameters documented?
• Is the task registered in the tasks.yml file?
• Does the task contains phpunit tests?
• Is the configuration having logical allowed types?
• Does the task run in the correct context?
• Is the run() method readable?
• Is the run() method using the configuration correctly?
• Are all CI services returning green?

[danepowell]

Sorry, it looks like the errors I mentioned are actually not happening in automated tests. I have no idea why. I get them when running Psalm locally.

The breakage in automated tests must be due to something else. Although I think the issues I mentioned are still valid and will become a problem.

[veewee]

Thanks for reporting! Will take care of it.

Noticed the event dispatcher thing indeed;
It got removed here without any notice symfony/symfony#40468

About the psalm issue : it looks phpunit related, but we are currently not running psalm on the tests. Not sure if it requires fixing.