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Tests: Unregister custom post types in wpUniquePostSlug.php - #15092

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Tests: Unregister custom post types in wpUniquePostSlug.php#15092
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rejaulalomkhan:tests/65893-isolate-post-wpuniquepostslug

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@rejaulalomkhan

@rejaulalomkhan rejaulalomkhan commented Oct 28, 2026

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Description

In tests/phpunit/tests/post/wpUniquePostSlug.php, register_post_type() is used across several test methods (test_with_multiple_hierarchies, test_with_hierarchy, and test_wp_unique_post_slug_with_hierarchy_and_attachments) to register custom hierarchical post types 'post-type-1' and 'post-type-2'.

While some tests call _unregister_post_type() inline, any test assertion failure before that point leaves the custom post types registered in the global $wp_post_types array, leaking into subsequent test runs.

This PR adds a dedicated tear_down() method in Tests_Post_wpUniquePostSlug to cleanly unregister both 'post-type-1' and 'post-type-2' using unregister_post_type(), ensuring complete test isolation.

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

This pull request modifies test files only.

Summary of Changes

  • Added tear_down() method to Tests_Post_wpUniquePostSlug in tests/phpunit/tests/post/wpUniquePostSlug.php unregistering 'post-type-1' and 'post-type-2'.

Test Coverage

  • Verified locally via vendor/bin/phpunit --filter Tests_Post_wpUniquePostSlug (20 tests, 29 assertions: all passed).
  • Ran PHPCS via vendor/bin/phpcs tests/phpunit/tests/post/wpUniquePostSlug.php (0 errors, 0 warnings).

Use of AI Tools

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

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github-actions Bot commented Oct 28, 2026

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@lancewillett

lancewillett commented Oct 31, 2026

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The added cleanup for post-type-1, post-type-2 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

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@mukeshpanchal27 mukeshpanchal27 mukeshpanchal27 approved these changes
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3 participants

@rejaulalomkhan @lancewillett @mukeshpanchal27