09 - Testing Detection Rules: Unit Testing for Security Logic

Unit testing for detection rules: test framework, synthetic log generation, red team validation and coverage metrics.

What you'll learn

• Detection rules are code: they need tests like any other code
• sigma-test allows co-located tests with the rule in native YAML format
• pytest offers flexibility for advanced tests: stress testing, coverage, parameterization
• Automatically generated synthetic logs cover more cases than manual events
• CI/CD gate prevents deployment of faulty rules to production

This article is part of the Detection Engineering series on federicocalo.dev.

Read the full article

The complete article (24 min read) with code examples, diagrams, and practical exercises is available here:

➡️ 09 - Testing Detection Rules: Unit Testing for Security Logic

https://federicocalo.dev/en/blog/testing-detection-rules-unit-testing-security-logic

By Federico Calò — Software Developer & Technical Writer