2.5Hands-On Exercise

1. Fork a simple Node.js project (or create one with npm init)
2. Add the test pipeline from this file to .github/workflows/test-pipeline.yml
3. Simplify it: start with just the unit-tests job
4. Push and watch the Actions tab -- verify the pipeline triggers and produces artifacts
5. Add integration-tests with a Postgres service
6. Add a matrix strategy for browser tests
7. Intentionally break a test and verify artifacts are uploaded on failure
8. Add path filtering and Slack notifications

Build the pipeline incrementally. Do not try to write the entire configuration at once -- you will spend more time debugging than building.