Agile Testing
Test-Driven Development – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A development approach in which test cases are developed, and often automated, before the software is developed to run those test cases.
In simple words
Red-green-refactor: write a failing test, make it pass with the simplest code, then clean up.
Exam tip
TDD is a shift-left technique and drives high unit-test coverage; know its BDD and ATDD cousins.
Related terms
- Shift-Left TestingStart testing — reviews, unit tests, static analysis — as early as possible, not at the end.
- Unit TestingSame as component testing: developers verify one small piece of code at a time with fast, automated tests.
- Agile DevelopmentShort sprints, close collaboration, working software over documentation, and continuous change.
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