Testing

[mbeps]

This pull request introduces a comprehensive testing setup for the project using Vitest, adds initial test suites for key hooks and utilities, and integrates test execution into the CI workflow. The changes also include necessary configuration and dependency updates to support the new testing framework.

Testing infrastructure and configuration:

• Added Vitest configuration with vitest.config.ts, enabling jsdom environment, test coverage thresholds, and TypeScript path support via vite-tsconfig-paths.
• Added a setup file vitest.setup.ts to extend matchers with @testing-library/jest-dom.
• Updated package.json to include Vitest and related dependencies, as well as new test scripts (test, test:coverage). [1] [2]

Continuous Integration (CI) enhancements:

• Updated .github/workflows/merge.yml to add a test job that installs dependencies, builds the project, and runs tests with coverage using Vitest.

Initial test suites:

• Added tests for the useSelectFile hook to validate file size, type, image dimensions, and selection logic in __tests__/hooks/useSelectFile.test.tsx.
• Added tests for the useIntersectionObserver hook to verify intersection logic in __tests__/hooks/useIntersectionObserver.test.tsx.
• Added tests for community permissions logic in __tests__/lib/communityPermissions.test.ts.
• Added tests for signup form validation in __tests__/lib/validation.test.ts.

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Project	Deployment	Review	Updated (UTC)
circus-discussion	Ready	Preview, Comment	Dec 13, 2025 9:25pm