Testing

Knowledge documents in Testing.

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3 documents

  • InferredUpdated 2026-07-13

    Playwright flaky vs failed triage

    How to separate flaky from deterministic failed tests in E2E CI using retry results, and distinguish timing races from build defects

  • InferredUpdated 2026-07-07

    React render count isolation testing

    How to record per-id render counts with a jest.mock probe and compare against a baseline snapshot to lock React re-render isolation into a unit test

  • InferredUpdated 2026-07-05

    Jest ESM vendor shim

    A pattern for stably importing an ESM-only npm package in a Jest CJS environment via a vendor TS file and moduleNameMapper