End-to-End Testing

End-to-end tests simulate real user journeys through an application. Rather than testing individual components or integration points, an E2E test might walk through an entire signup, purchase, and confirmation flow, verifying that every step works correctly in sequence. This is the closest automated testing gets to replicating actual user behavior.

Automated E2E tests are powerful but expensive to create and maintain. They require tools like Playwright or Cypress, careful setup of test environments, and frequent updates as the application changes. For vibecoded apps that evolve rapidly through AI-assisted iteration, keeping E2E test suites current can be a significant burden.

Manual end-to-end testing, which is what human QA testers do naturally, provides the benefits of full-flow validation without the maintenance overhead. A DidItWork tester walks through your application's key workflows as a real user would, verifying that every step works correctly. This approach is especially practical for vibecoded apps where the codebase changes frequently and automated E2E tests would quickly become outdated.