DevOps & Tooling / Knowledge library
Fuzz Testing
Feeds generated malformed or unexpected inputs to discover crashes and invariant violations
Why learn Fuzz Testing?
It finds robustness and security defects at parsing boundaries
The problem it solves
It explores input combinations beyond manually written cases
Where it came from
Fuzz Testing is a software testing technique that feeds generated malformed or unexpected inputs to discover crashes and invariant violations. Its guarantees and tradeoffs depend on the concrete implementation and operating context.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Define Fuzz Testing and distinguish it from a neighboring concept.
- Choose a realistic task where Fuzz Testing is appropriate.
- Identify a failure mode caused by misusing Fuzz Testing.
- Interpret a small design or result involving Fuzz Testing.
- Explain one tradeoff or limitation of Fuzz Testing.
Documentation and sources
- ISTQB Glossary (glossary.istqb.org)