skills.rest
sumithr
sumithrCOMMUNITY
Explore all skills by this author →
GitHub

sumo-qa-strengthening-tests

Triage mutation-testing survivors and draft one strengthening test per real mutant.

5|1|Updated May 12, 2026
Search Tags:#pytest#mutation testing#pitest#assertion quality#boundary value analysis#test strengthening#TDD red phase
One-click install
npx skills add https://github.com/sumithr/sumo-qa --skill sumo-qa-strengthening-tests
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: sumo-qa-strengthening-tests
Source: https://github.com/sumithr/sumo-qa/tree/main/skills/sumo-qa-strengthening-tests
Command: npx skills add https://github.com/sumithr/sumo-qa --skill sumo-qa-strengthening-tests

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Helps you eliminate weak assertions and mutation-testing survivors by guiding you to strengthen only the tests—without changing production code.

Core Features & Use Cases

  • Mutation-survivor triage with confirmation gates: Separates likely equivalent/tautological mutants from likely real behavior gaps before writing any changes.
  • Single-mutant walk-through: Processes survivors one at a time, asking the user to confirm whether each mutant is truly equivalent in practice.
  • Technique-driven strengthening: Selects exactly one ISTQB-grounded technique per real mutant and uses it to draft a targeted strengthening test.
  • Hard safety gate for production code: Explicitly prevents production edits; survivors found due to wrong production behavior must be handled by a different workflow.

Quick Start

Ask your AI coding assistant to run mutation test follow-up using sumo-qa-strengthening-tests for your mutation report on the target module, and confirm each survivor as equivalent or real before it writes strengthening tests.

Frequently Asked Questions about sumo-qa-strengthening-tests

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I kill surviving mutants from Pitest or Stryker without changing production code?▼

To kill surviving mutants without changing production code, triage each survivor to distinguish equivalent mutants from real behavior gaps, then add exactly one catalogue technique-driven strengthening test per real mutation survivor.

What is the best way to handle equivalent mutants in mutation testing?▼

Handling equivalent mutants requires walking each survivor through an equivalence and tautology triage process with confirmation gates, then suppressing confirmed equivalents via tooling annotations or configuration.

How do I strengthen weak assertions in pytest using boundary value analysis?▼

Strengthen weak assertions by applying ISTQB-grounded techniques like boundary value analysis to draft exactly one targeted strengthening test per real mutation survivor while keeping production code unchanged.

Does this mutation testing approach work when a survivor indicates wrong production behavior?▼

No, this approach explicitly prevents production edits. Surviving mutants found due to wrong production behavior must be handled by a different workflow, as this process strictly strengthens only tests.

Can I use mutation testing tools like mutmut to improve assertion quality in TDD?▼

Yes, you can use mutation testing reports from mutmut to improve assertion quality by processing survivors one at a time, confirming each as equivalent or real, and drafting targeted strengthening tests for the TDD red phase.

Related Skills

Explore More Software Engineering Skills→
robit-manrobit-man

mutation-test

Runs mutation testing to evaluate how well existing test suites detect introduced defects.

Community
Advanced
nateanatea

mutation-testing

Run mutation analysis to compute mutation score and detect surviving mutants.

Community
Advanced
CENKSSSCENKSSS

test-design-techniques

Generate test cases using Boundary Value Analysis, Equivalence Partitioning, Decision Tables, and Pairwise Testing.

Community
Advanced
eferroeferro
23

mutation-testing-python

Run mutmut mutation testing on Python code and interpret surviving mutants.

Community
Intermediate