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@hapi/lab

@hapi/lab is a free, open-source test utility for Node.js.

Place
#22 of 23
Score
5.1
@hapi/lab's website

What @hapi/lab is

@hapi/lab is a free, open-source test utility for Node.js. It organizes tests into experiments and supports before, after, beforeEach, and afterEach hooks. Tests can use BDD-style describe/it or TDD-style suite/test interfaces. Lab uses async/await and keeps its execution engine deliberately simple rather than serving as an extensible framework. It works best with @hapi/code, but accepts any assertion library that throws when a condition fails. Coverage measurement can enforce a minimum threshold, with built-in console, HTML, JSON, JUnit XML, TAP, LCOV, and Clover XML reporters. TypeScript definitions and a command-line option for TypeScript test files are included. Versions 25 and 26 are listed for Node.js 16 or newer under a BSD license. Installation documentation uses npm, Yarn, or pnpm. Lab does not support parallel execution.

Good

  • Async/await test execution
  • BDD and TDD test interfaces
  • Coverage thresholds and many reporters
  • TypeScript definitions and CLI support
  • BSD-licensed open source

Watch out

  • No parallel execution
  • Node.js 16 or newer for versions 25 and 26
  • Designed around a simple, non-extensible engine

Who it suits

@hapi/lab suits Node.js developers who want experiment-based tests, async/await, coverage checks, and multiple report formats. It is designed for hapi components but can also run with other frameworks or independently.

Verdict

@hapi/lab provides a focused Node.js test runner with hooks, coverage controls, TypeScript support, and broad reporting formats. Its deliberate simplicity and lack of parallel execution are important when choosing a testing utility.

The facts

Each one read from @hapi/lab's own pages, with the date it was checked.

What it does

Assertions
Lab works best with the @hapi/code assertion library, but can be used with any assertion library that throws when a condition is not met.checked 8 Oct 2026
Compatibility
The page lists Node.js 16 or newer for major versions 25 and 26, with a BSD license.checked 4 Oct 2026
Compatibility and license
The page lists versions 26 and 25 as BSD-licensed and compatible with Node.js 16 or later.checked 8 Oct 2026
Coverage
Lab can measure code coverage and enforce a minimum coverage threshold.checked 8 Oct 2026
Coverage and reports
Lab supports code coverage and console, HTML, JSON, JUnit XML, TAP, LCOV, and Clover XML reporters.checked 4 Oct 2026
Design
Lab uses async/await and aims to keep its execution engine simple rather than build an extensible framework.checked 4 Oct 2026
Ecosystem
The project says Lab was designed to work with the hapi framework and its components, and also works with other frameworks or on its own.checked 4 Oct 2026
Installation
The documented installation commands use npm, Yarn, or pnpm to add @hapi/lab to a project.checked 8 Oct 2026
Purpose
@hapi/lab is a test utility for Node.js.checked 8 Oct 2026
Reporters
Built-in reporters include console, HTML, JSON, JUnit XML, TAP, LCOV, and Clover XML.checked 8 Oct 2026
Security reporting
The hapi security policy asks people to report suspected security issues with hapi modules privately to [email protected] rather than opening public issues.checked 4 Oct 2026
Support
The hapi support page says free help is available through GitHub issues, Discord, and Slack.checked 8 Oct 2026
Test formats
Lab supports BDD-style describe/it and TDD-style suite/test interfaces.checked 8 Oct 2026
Test organization
Tests can be grouped into experiments with before, after, beforeEach, and afterEach setup and cleanup hooks.checked 8 Oct 2026
Test style
Lab uses async/await and describes its execution engine as deliberately simple rather than an extensible framework.checked 8 Oct 2026
TypeScript
Lab includes TypeScript definitions and has a CLI option to run TypeScript test files using the project’s TypeScript module and configuration.checked 8 Oct 2026

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