Chapter 4 – Test Techniques
Gray-Box Testing – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A test technique that combines black-box and white-box approaches, using partial knowledge of the internal structure.
In simple words
Testing that mixes user-view scenarios with some knowledge of the internals.
Exam tip
Gray-box testing is common in integration and security testing.
Related terms
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