[rejaulalomkhan]

Description

In tests/phpunit/tests/adminbar.php, register_post_type() is used across test methods (test_content_post_type, test_admin_bar_has_no_archives_link_for_non_public_cpt, test_admin_bar_has_no_archives_link_for_cpt_without_archive, and test_admin_bar_has_no_archives_link_for_cpt_not_shown_in_admin_bar) to register custom post types 'content' and 'foo-non-public'.

While the tests attempt inline cleanup via _unregister_post_type() or unregister_post_type(), any test assertion failure before or during these calls leaves the custom post types registered in the global $wp_post_types array, leaking state into subsequent test runs.

This PR adds a dedicated tear_down() method in Tests_AdminBar to unregister both 'content' and 'foo-non-public' via unregister_post_type(), ensuring complete test isolation.

Trac ticket: https://core.trac.wordpress.org/ticket/65893

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This pull request modifies test files only.

Summary of Changes

• Added tear_down() method to Tests_AdminBar in tests/phpunit/tests/adminbar.php unregistering 'content' and 'foo-non-public'.

Test Coverage

• Verified locally via vendor/bin/phpunit --filter Tests_AdminBar (89 tests, 224 assertions: all passed).
• Ran PHPCS via vendor/bin/phpcs tests/phpunit/tests/adminbar.php (0 errors, 0 warnings).

Use of AI Tools

• Tool: Antigravity
• Model: Gemini 2.5 Pro
• Scope: Identifying test isolation leaks in adminbar.php and drafting teardown cleanup.

[github-actions]

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Props rejaulalomkhan.

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[lancewillett]

The added cleanup for content, foo-non-public repeats the Core test harness’s registry reset before each test. These registrations do not opt out of that reset, and no existing consumer is shown to fail before it. Closing this cleanup-only proposal as redundant; the existing behavioral tests remain unchanged.

The inherited reset runs in WP_UnitTestCase_Base::set_up().

Thanks for working on test isolation. We can reopen this if an existing test or fixture fails without the cleanup and passes with it under the same environment and order.

_{AI review · gpt-6}