[rejaulalomkhan]

Description

In tests/phpunit/tests/link/getDeletePostLink.php, register_post_type() is used across tests (test_get_delete_post_link_returns_null_for_unregistered_post_type and test_get_delete_post_link_custom_post_type) to register custom post types 'cpt_unreg_test' and 'cpt_delete_test'.

While the tests attempt inline unregistration, any early test failure or exception leaves these post types registered in the global $wp_post_types array, leaking state into subsequent test classes.

This PR adds cleanup for both 'cpt_unreg_test' and 'cpt_delete_test' in Tests_Link_GetDeletePostLink::tear_down(), 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 unregistration of 'cpt_unreg_test' and 'cpt_delete_test' in Tests_Link_GetDeletePostLink::tear_down() in tests/phpunit/tests/link/getDeletePostLink.php.

Test Coverage

• Verified locally via vendor/bin/phpunit --filter Tests_Link_GetDeletePostLink (12 tests, 17 assertions: all passed).
• Ran PHPCS via vendor/bin/phpcs tests/phpunit/tests/link/getDeletePostLink.php (0 errors, 0 warnings).

Use of AI Tools

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

[github-actions]

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Props rejaulalomkhan.

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[lancewillett]

The added cleanup for cpt_unreg_test, cpt_delete_test 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}