[Feature]: Add Test Infrastructure for Core Carousel Plugin

[theMasudRana]

Add Test Infrastructure for Core Carousel Plugin

Summary

This PR adds comprehensive JavaScript and PHP testing infrastructure along with CI/CD integration for automated test execution.

Changes

Test Infrastructure

• Jest Configuration (jest.config.js): Custom config extending @wordpress/scripts with coverage thresholds, module aliases, and test setup
• PHPUnit Configuration (phpunit.xml.dist): PHP unit test configuration with Brain\Monkey integration
• Test Setup Files: Mocks for WordPress Interactivity API, Embla Carousel, and other dependencies

JavaScript Tests (86 tests)

• view.test.ts: Tests for carousel store registration, state getters, actions (scrollPrev, scrollNext, onDotClick), callbacks, and error handling
• types.test.ts: Type validation tests for CarouselAttributes and CarouselContext

PHP Tests (14 tests)

• PluginTest.php: Tests for block category registration, block registration, pattern category, and block patterns
• SingletonTest.php: Tests for the Singleton trait behavior

Dependencies

• Added Jest testing dependencies to package.json
• Added PHPUnit, Brain\Monkey, and Yoast PHPUnit Polyfills to composer.json

Screenshot

Testing

# Run JavaScript tests
npm run test:js

# Run PHP tests
composer test

[Copilot]

Pull request overview

This PR establishes comprehensive testing infrastructure for the Core Carousel plugin, adding both JavaScript and PHP unit tests along with CI/CD automation.

Changes:

• Added Jest-based JavaScript testing with 86 tests covering carousel store, state management, actions, and type definitions
• Added PHPUnit-based PHP testing with 14 tests covering plugin initialization, singleton pattern, and block registration
• Integrated GitHub Actions workflow for automated testing on push and pull requests

Reviewed changes

Copilot reviewed 15 out of 18 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
jest.config.js	Jest configuration extending @wordpress/scripts with coverage thresholds and module aliases
tests/js/setup.ts	Global test setup with mocks for WordPress and Embla Carousel dependencies
tests/js/mocks/wordpress-interactivity.ts	Mock implementation of WordPress Interactivity API
src/blocks/carousel/tests/view.test.ts	Comprehensive tests for carousel frontend logic (86 tests)
src/blocks/carousel/tests/types.test.ts	Type validation tests for TypeScript definitions
tests/js/tsconfig.json	TypeScript configuration for Jest tests
phpunit.xml.dist	PHPUnit configuration for PHP unit tests
tests/phpstan/constants.php	PHPStan bootstrap constants for static analysis
tests/php/bootstrap.php	PHPUnit bootstrap with Brain\Monkey setup
tests/php/Unit/UnitTestCase.php	Base test case class for unit tests
tests/php/Unit/Traits/SingletonTest.php	Tests for Singleton trait behavior
tests/php/Unit/PluginTest.php	Tests for Plugin class covering block/pattern registration
package.json	Added Jest testing dependencies and test scripts
composer.json	Added PHPUnit, Brain\Monkey, and Yoast PHPUnit Polyfills dependencies
.github/workflows/tests.yml	CI/CD workflow for JavaScript tests, PHP tests, and build verification
core-carousel.php	Updated plugin headers with GitHub URL and version requirements

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.