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node-testing

Run Node.js 25 tests with node:test and zero external dependencies.

1|1|Updated Mar 25, 2026
Search Tags:#typescript#testing#unit-testing#integration-testing#node#node-test
One-click install
npx skills add https://github.com/penghang1223/niannian-workspace --skill node-testing-penghang1223
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: node-testing
Source: https://github.com/penghang1223/niannian-workspace/tree/main/skills/node-testing
Command: npx skills add https://github.com/penghang1223/niannian-workspace --skill node-testing-penghang1223

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Run Node.js 25 built-in tests using node:test with zero external dependencies, simplifying test setup and execution for small projects.

Core Features & Use Cases

  • Native test framework with describe/it, test, and built-in mocking support.
  • Built-in coverage collection and support for TypeScript type stripping without extra tools.
  • Robust test patterns including nested suites and rerun-failures to improve CI reliability.

Quick Start

Run tests with node --test to auto-discover and execute all test files.

Frequently Asked Questions about node-testing

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

FAQPage Schema
How do I run Node.js unit tests without installing external testing dependencies?▼

You can run Node.js unit tests with zero external dependencies by using the native node:test module. Execute tests via the node --test command to auto-discover and run test files without requiring additional packages.

Does the Node.js built-in test runner support TypeScript files?▼

Yes, Node.js native testing supports TypeScript type stripping without extra tools. You can execute TypeScript test files directly using node:test on Node.js 25+, leveraging the built-in type stripping capability.

Can I collect code coverage using node:test without external libraries?▼

Yes, you can collect code coverage natively using node:test. The built-in test runner provides integrated coverage collection capabilities, eliminating the need to configure external coverage libraries for your Node.js projects.

How do I handle flaky integration tests in Node.js using the native test runner?▼

You can handle flaky integration tests using the built-in rerun-failures feature of node:test. This functionality automatically retries failed tests to improve CI reliability without needing external retry plugins.

What Node.js version is required to use native mocking and describe/it syntax?▼

Node.js 25+ is required to use native node:test APIs with describe/it syntax and built-in mocking support. This version provides the full native test framework functionality without external dependencies.

Is the native node:test runner suitable for testing CLIs and libraries?▼

Yes, node:test is suitable for testing CLIs, libraries, and applications. It supports both unit and integration testing scopes, handling nested suites and robust test patterns for various Node.js project types.

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