Recipes

    Practical patterns lifted from real ferridriver suites. Each page is self-contained and copy-paste ready.

    RecipeWhat it covers
    Login and saved auth stateSign in once, reuse the session across tests
    Network mockingroute() to fulfill / abort / continue; HAR replay
    File upload and downloadsetInputFiles, capturing downloads via the download event
    Cookies and storageaddCookies, storageState, per-context overrides
    Multiple tabs and windowsNew pages, popup handling, switching active tab
    Mobile emulationViewport, user agent, touch, device scale factor
    Screenshots and tracesFull page, element, masking, Playwright-compatible traces
    CI on GitHub ActionsSharded matrix, JUnit upload, video on failure

    Each Rust snippet assumes a #[ferritest] body unless noted; each TypeScript snippet assumes @ferridriver/node. The browser calls are identical across languages — only the harness differs.