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.