test: Search PHPUnit tests

[Kallyan01]

What

Added Search Module PHPUnit test cases.

Why

Improves development workflow by enabling faster and more reliable validation of REST functionality, reducing repetitive manual testing efforts.

Related Issue(s):

• https://github.com/rtCamp/OnePress/issues/71

How

AI Disclosure

Hybrid approach = Written by Me + Copilot (Claude Opus 4.6, GPT 5.3) + Audited by me

Testing Instructions

npm run wp-env:test -- start --xdebug=coverage    

npm run test:php -- tests/php/Unit/Modules/Search

Screenshots

Additional Info

Checklist

• I have read the Contribution Guidelines.
• I have read the Development Guidelines.
• I have added necessary tests to cover my changes.
• I have updated the project documentation as needed.
• My code has detailed inline documentation.
• My code is tested to the best of my abilities.
• My code passes all lints, tests, and checks.

[Copilot]

Pull request overview

This PR adds PHPUnit unit tests for the Search module’s WordPress integration points and for the Algolia Index wrapper, helping validate hook registration and several “remote post” mapping behaviors.

Changes:

• Add SearchTest covering hook registration and selected behaviors for permalinks, author fields, term links, and rendered block rewriting.
• Add IndexTest covering error returns when prerequisites are missing and verifying Index::get_index() caching behavior.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 5 comments.

File	Description
tests/php/Unit/Modules/Search/SearchTest.php	Introduces unit tests for OneSearch\Modules\Search\Search behaviors (hooks, mapping, block output).
tests/php/Unit/Modules/Search/IndexTest.php	Introduces unit tests for OneSearch\Modules\Search\Index error handling and caching.

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[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.