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DevOps & Automation · Intermediate

Test Pyramid

A testing strategy model recommending many fast unit tests, fewer integration tests, and very few end-to-end tests.

Definition

The pyramid balances speed, cost, and confidence. Lower layers give fast feedback in CI; upper layers validate whole-system behavior less frequently.

Example

A project has 2,000 unit tests, 150 integration tests, and 20 E2E tests.

Exam tip

If a pipeline is slow and flaky, push tests down the pyramid.

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