Opened 2 months ago
#59486 new enhancement
Make test suite compatible with PHPUnit 10
| Reported by: |
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Owned by: | |
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| Milestone: | Awaiting Review | Priority: | normal |
| Severity: | normal | Version: | 6.4 |
| Component: | Build/Test Tools | Keywords: | dev-feedback needs-testing |
| Focuses: | Cc: |
Description
PHPUnit 10 was released back in February of 2023, and included many breaking changes - they completely rewrote the internal functionality of PHPUnit (mainly the event system for extending the test runner). Besides that, they upped the minimum PHP version to >=8.1, so for WordPress, it could only be used on PHP versions of >=8.1.
While this is not a huge and critical update, since the tests are running fine on PHP versions all the way up to version 8.3, it would be a good idea to start preparing for PHPUnit 10 compatibility.
Besides being up to date, it will allow external testing library maintainers (such as wp-browser or wp-pest), to use the latest versions of both PHPUnit, or dependencies that are using PHPUnit 10 (such as PestPHP v2 which depends on PHPUnit 10).
I understand that this is a huge undertaking, but it's okay to have a ticket open for this (I didn't find one opened while searching, could be wrong tho), so that we can keep track of changes, and maybe create a roadmap or a to-do list of what needs to be fixed in order to make WordPress test suite compatible with PHPUnit 10.