[pbearne]

This commit introduces PHPUnit tests for the wp_widgets_add_menu function. The tests are implemented in a new file, wpWidgetsAddMenu.php, inside the tests/phpunit/tests/functions/ directory and cover different cases and scenarios to ensure proper functionality of the wp_widgets_add_menu function.

Trac ticket: https://core.trac.wordpress.org/ticket/60179

[github-actions]

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[github-actions]

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[Copilot]

🟡 Changes recommended

The tests use assertEqualSets(), which discards the themes.php key and allows an incorrect Widgets parent menu to pass; both tests need assertSame() to verify the complete submenu structure.

1 open issue

• Verify submenu parent keys in theme tests · New

What changed in this PR

Adds PHPUnit coverage for wp_widgets_add_menu(), which registers the Widgets submenu in WordPress administration.

Changes:

• Tests submenu registration for default and block themes.
• Tests that no submenu is added when widget support is disabled.
• Saves and restores the global submenu state around each test.

File	Description
tests/​phpunit/​tests/​wp-includes/​functions/​WpWidgetsAddMenuTest.php	Adds three widget-menu tests with submenu setup and cleanup.

_{Review effort: Balanced}

[lancewillett]

Applied to current trunk, the randomized local run fails test_wp_widgets_add_menu: expected submenu index 8, actual 9. Please refresh the contract and explicitly arrange the intended theme/menu state. This overlaps #3699, so consolidate the alternatives rather than landing both. The sampled CI failure was a build timeout, but this local failure is a separate stale test expectation.

_{AI review · gpt-6}

[pbearne]

closed as dupicate #3699