Automated Testing in CI/CD
Go beyond 'tests pass/fail' — matrix testing across versions, coverage reporting, and flaky-test handling, so your pipeline's test signal is actually trustworthy.
Prerequisites: completed CI Pipeline Fundamentals, an existing test suite (unit tests in any language), a free Codecov account for the coverage step.
Sourcing & version notes: verified against current docs as of July 2026 — codecov/codecov-action@v5 and actions/upload-artifact@v7 are the current majors. Node matrix (20/22/24) reflects actively-supported LTS lines as of mid-2026 — re-check the Node.js release schedule before publishing if this sits in a queue.
A pipeline that runs tests once, on one Node version, and reports pass/fail is a good start but hides real risk: does the code work on the Node version your users actually run? Is coverage quietly dropping PR over PR? Is a test failing intermittently because it's flaky, not because the code is broken? This project layers matrix testing, coverage reporting, and flaky-test isolation onto the CI pipeline from Project 1.
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