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nw-property-based-testing

Apply property-based and mutation testing with shrinking to improve test coverage.

Updated Mar 18, 2024
Search Tags:#hypothesis#mutation-testing#test-quality#property-based-testing#testing-workflow#shrinking#jqwik
One-click install
npx skills add https://github.com/v1bh0r/precise-ledger-pro --skill nw-property-based-testing-v1bh0r
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: nw-property-based-testing
Source: https://github.com/v1bh0r/precise-ledger-pro/tree/main/nWave/skills/nw-property-based-testing
Command: npx skills add https://github.com/v1bh0r/precise-ledger-pro --skill nw-property-based-testing-v1bh0r

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Property-based testing and mutation testing tackle the brittleness of example-based tests by exploring a wide space of inputs and introducing intentional bugs to reveal weaknesses.

Core Features & Use Cases

  • Property-Based Testing: automatically generate diverse inputs to validate invariants and edge cases.
  • Mutation Testing: measure test effectiveness by injecting small faults and measuring detection.
  • Combined Workflows: integrate shrinking to minimize failing inputs and pair with conventional tests for end-to-end quality.

Quick Start

Run property-based tests against your codebase using a framework such as Hypothesis or jqwik to automatically generate inputs and validate invariants.

Frequently Asked Questions about nw-property-based-testing

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

FAQPage Schema
How do I improve test coverage using property-based testing?▼

Property-based testing improves coverage by automatically generating diverse inputs to validate invariants. It expands input spaces beyond manual examples to systematically reveal edge cases and software weaknesses.

What is mutation testing and how does it measure test effectiveness?▼

Mutation testing measures test effectiveness by injecting small faults into the code. It evaluates whether your existing test suite detects these intentional bugs to reveal weaknesses in test resilience.

Does property-based testing work with Hypothesis and jqwik across different languages?▼

Yes, property-based testing works with Hypothesis and jqwik across multiple languages. The workflow selects suitable strategies and evaluates results using these frameworks to validate invariants.

How do I find minimal failing cases using shrinking in property-based testing?▼

Shrinking identifies minimal failing cases by minimizing generated inputs after a test failure. Incorporating shrinking into your property-based testing workflow reduces complex errors to their simplest reproducible form.

How do I combine mutation testing and property-based testing in a CI workflow?▼

Combine mutation testing and property-based testing by enforcing a workflow with defined quality targets. Run mutation analysis using PIT alongside generated input validation to achieve end-to-end test resilience.

Why are example-based tests brittle compared to property-based testing?▼

Example-based tests are brittle because they only validate explicitly specified inputs. Property-based testing tackles this brittleness by exploring a wide space of generated inputs to find unconsidered edge cases.

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