When software developers and software testers work together to create the set of tests and then determining where that testing belongs, they can increase efficiency, reliability and reduce debugging time for failures in the future.
The testing pyramid is an idea explained by Mike Cohn in his book “Succeeding with Agile”. Its main point is that you should have more low-level unit tests than high level end-to-end tests running through a GUI. The testing pyramid is a strategy for structuring automated tests so that your test suite is fast, reliable, and cost‑effective. It visualizes how many tests you should have at each level of abstraction.
The Testing Pyramid encourages:
- Speed: Most tests run quickly
- Stability: Fewer flaky E2E tests
- Confidence: Coverage at multiple levels
- Lower cost: Unit tests are cheaper to write and maintain than UI tests
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