Chapter 6 – Test Tools
Flaky Test – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A test that produces both passing and failing results without any change to the code or test itself.
In simple words
A test that sometimes passes and sometimes fails on the same build — usually a timing or environment issue.
Exam tip
Flaky tests destroy trust in the suite — quarantine and fix immediately, don't ignore.
Related terms
- Test AutomationLetting tools do the repetitive parts of testing — usually execution, but also data generation and reporting.
- Risks of Test AutomationUpfront cost, maintenance burden, false confidence, brittle scripts, wrong tests automated.
- Test ScriptAn automated test procedure — code that a tool runs against the system.
Practice this term in the ISTQB Mock Test
40 CTFL v4.0 questions, 60-minute timer, instant scoring and chapter-wise breakdown.
Practice in Mock Test