How to Perform End-to-End Testing From the Command Line

End-to-end testing from the command line can make critical user journeys such as registration, shopping, checkout, and order confirmation reproducible locally and in CI/CD pipelines. The guide recommends managing application startup with Playwright’s webServer configuration or Docker Compose readiness checks, reusing authenticated sessions through Playwright storageState files generated by a setup project, and preserving failure evidence with traces that include browser actions, DOM snapshots, network requests, and console output. Its Playwright example runs a complete shopper flow on a cloud browser grid, verifies visible outcomes at each stage, and checks the backend order history using the same authenticated session. For teams seeking lower-code alternatives, Kane CLI can execute plain-English objectives in Chrome, return machine-readable results and exit codes, collect screenshots, network logs, and console output, and save multi-step journeys as replayable Markdown test files. Both approaches are designed to gate CI merges through pass/fail exit codes, with guidance on artifacts, environment readiness, secrets, flaky failures, shared login steps, tagging, and scaling critical tests over time.

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