testing-strategy

To set up Vitest with MongoDB for service layer testing, you can automate the environment configuration using mongodb-memory-server to create an isolated in-memory test database within the CampusOS ecosystem.

The best way to test CampusOS modules without affecting a live database is using an in-memory MongoDB server, which provides an ephemeral database instance that automatically spins up for test execution and discards data afterward.

Yes, Vitest works seamlessly with mongodb-memory-server for infrastructure setup, allowing you to automate test database initialization and execute unit tests efficiently during your software development workflow.

To run unit tests for a specific CampusOS module, execute the command `pnpm -C apps/[module-name] test -- --run`, which triggers Vitest to execute the test suite for that directory.

You can improve test coverage for service layer code by integrating Vitest, which provides efficient testing patterns for infrastructure and service modules to ensure robust functionality and higher code quality.