PHP Unit Tests are failing

[ockham]

Description

Copied (with edits) from #37100 (comment):

[T]he remaining PHP unit test that's failing [is]

1) WP_REST_URL_Details_Controller_Test::test_will_return_from_cache_if_populated
Failed asserting that 'Example Website — - with encoded content.' contains "This value from cache".

/var/www/html/wp-content/plugins/gutenberg/phpunit/class-wp-rest-url-details-controller-test.php:302

is probably due to WordPress/wordpress-develop@1270c89 (committed today at 11:34 UTC): I noticed it wasn't present on trunk for https://github.com/WordPress/gutenberg/runs/4407241926?check_suite_focus=true (at 11:15 UTC) but for the following merge https://github.com/WordPress/gutenberg/runs/4408138725?check_suite_focus=true (at 12:51 UTC), and it touches src/wp-includes/rest-api/endpoints/class-wp-rest-url-details-controller.php which seems relevant to the error 😬

Step-by-step reproduction instructions

Look at PHP unit tests for any recent commit, or run test-unit-php locally.

Screenshots, screen recording, code snippet

No response

Environment info

No response

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes

[ramonjd]

For fun, I updated the filters to reflect the change in WordPress/wordpress-develop@1270c89

😱

[ramonjd]

Does that mean we'd have to update https://github.com/WordPress/gutenberg/blob/36746203fb97e715d709adbc9e9ff71037a42f14/lib/class-wp-rest-url-details-controller.php with the same changes as https://core.trac.wordpress.org/changeset/52311?

I have no context about why Gutenberg has it's own WP_REST_URL_Details_Controller class.

[ockham]

Fixed by #37122. Thanks @ramonjd!