Hi everyone,
When building complex applications, especially those with multiple workflows or user interactions, one test strategy that consistently helps catch critical bugs is end-to-end (E2E) testing.

End-to-end testing goes beyond unit and integration tests by validating full user journeys from start to finish — for example, signing in, completing a purchase, triggering backend workflows, and confirming outputs. This kind of testing ensures that all pieces of the system work together exactly as expected from the user’s perspective.

Some key benefits of E2E testing include:

• Simulating real user behavior across workflows
• Detecting issues that happen only when multiple components are connected
• Increasing confidence before releases or deployment
• Improving product quality and reducing hot-fixes in production

I reviewed a detailed guide on this topic that explains how end-to-end testing fits into the overall QA strategy, outlines best practices, and gives practical scenarios for implementing it effectively in your projects. It’s a helpful read for teams working with complex UI flows, APIs, or backend logic.

Would love to hear how others here approach end-to-end testing — what tools you use and what challenges you’ve run into!