How Google Tests Software

In my experience I get those benefits when testing at the system/use case level but not when doing unit tests. At that higher level automated tests works wonderfully. I haven’t had a bug in production for 5+ years because of test automation. Which means that I spend 95% or more of my time adding new features or optimisations instead of bug hunting

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tests include:

• Unit tests for individual components and isolated functions.


• Integration tests for interactions between multiple components.


• End-to-end tests that assess the entire system’s functionality from a user’s perspective

Tests should be simple. It should be easy to identify what went wrong when reading a failing test.