nw-pbt-typescript

Automate property-based testing workflows for TypeScript/JavaScript projects with fast-check.

Updated Mar 18, 2024
One-click install
npx skills add https://github.com/v1bh0r/precise-ledger-pro --skill nw-pbt-typescript-v1bh0r
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: nw-pbt-typescript
Source: https://github.com/v1bh0r/precise-ledger-pro/tree/main/nWave/skills/nw-pbt-typescript
Command: npx skills add https://github.com/v1bh0r/precise-ledger-pro --skill nw-pbt-typescript-v1bh0r

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Property-based testing helps catch edge cases and hidden bugs in TypeScript/JavaScript code by validating invariants across a wide range of automatically generated inputs.

Core Features & Use Cases

  • Generates and shrinks complex inputs using fast-check to ensure robust, flaky-free tests.
  • Supports model-based/stateful testing and race-condition scenarios to validate concurrency safety.
  • Integrates with popular test runners (Jest, Vitest, Mocha) and common workflows in frontend and backend codebases.

Quick Start

Install fast-check in your TypeScript project and run a simple property-based test to validate a pure function.

Frequently Asked Questions about nw-pbt-typescript

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

FAQPage Schema
How do I write property-based tests in TypeScript to catch edge cases?

Property-based testing in TypeScript validates invariants across automatically generated inputs using fast-check. It helps catch hidden bugs by generating and shrinking complex inputs to ensure robust, flaky-free tests.

Can I use fast-check for model-based and stateful testing in JavaScript?

Yes, fast-check supports model-based stateful testing in JavaScript to validate state transitions. This approach allows you to verify concurrency safety and race-condition scenarios within your frontend and backend test suites.

Does property-based testing with fast-check work with Jest or Vitest?

Yes, property-based testing with fast-check integrates seamlessly with popular test runners like Jest, Vitest, and Mocha. This allows you to incorporate generators and scheduler-based testing patterns into typical frontend and backend workflows.

What's the best way to test race conditions and concurrency safety in TypeScript?

The best way to test race conditions in TypeScript is using fast-check's scheduler-based testing patterns. This method automates race-condition scenarios to validate concurrency safety and prevent flaky behavior in asynchronous code.

Do I need a specific testing environment to run fast-check generators?

You need a TypeScript or JavaScript testing environment with fast-check installed to run property tests. Once set up, you can immediately generate and shrink complex inputs to validate pure functions and stateful models.

Why use property-based testing instead of example-based tests for complex inputs?

Property-based testing catches edge cases that example-based tests miss by automatically generating a wide range of inputs. Using fast-check, it automatically shrinks failing inputs to their minimal failing state for easier debugging.