Run your tests locally against multiple node.js versions

@bevry/testen is a fork of testen which continues maintenance with various improvements and fixes.

As JSON:

As JSON:

Complete API Documentation.

Testen uses nvm behind the scenes for its node.js version management.

The CLI will determine which Node.js versions to run your tests again in this order of most preferred first:

• use the CLI via -n <version> flag (--node is also suitable):
  • testen -n 8.0.0 -n 10
  • testen -n '8 || 10'
  • testen -n '>=8 <=10'
• use the package.json configuration file via:
  • "testen": { "node": ["8.0.0", 10] }
  • "testen": { "node": "8 || 10" }
  • "testen": { "node": ">=8 <=10" }
• use the package.json configuration file via:
  • "testen": { "node": "8 || 10" }
  • "testen": { "node": ">=8 <=10" }
• otherwise, the current, stable, and system versions are used which are resolved by nvm

The CLI will default to npm test as the command that will run for each Node.js version, however the API has no such default. You can customize this via:

• use the CLI via -- <command>, e.g. testen -- echo hello world
• use the package.json configuration file via "testen": { "serial": true }

By default tests will run in parallel (multiple at once), to use serial, you can either:

• use the CLI via -s flag (--serial is also suitable)
• use the package.json configuration file via "testen": { "serial": true }

By default Testen will output pretty output, to only output the JSON result, you can either:

• use the CLI via -j flag (--json is also suitable)
• use the package.json configuration file via "testen": { "json": true }

Refer to testen --help.

Testen also provides an API which can be used like so:

const { Versions } = require('@bevry/testen')
async function main() {
    const versions = new Versions([4, 8, 10, 'current', 'stable', 'system'])
    await versions.load()
    await versions.install()
    await versions.test('npm test')
    console.log(versions.success)
}
main()

Complete API documentation is available.

• Install: npm install --global @bevry/testen
• Executable: @bevry/testen

• Install: npm install --save @bevry/testen
• Executable: npx @bevry/testen
• Import: import * as pkg from ('@bevry/testen')
• Require: const pkg = require('@bevry/testen')

This package is published with the following editions:

• @bevry/testen/source/index.ts is TypeScript source code with Import for modules
• @bevry/testen aliases @bevry/testen/edition-es2022-esm/index.js
• @bevry/testen/edition-es2022-esm/index.js is TypeScript compiled against ES2022 for Node.js 18 || 20 || 21 with Import for modules
• @bevry/testen/edition-types/index.d.ts is TypeScript compiled Types with Import for modules

Discover the release history by heading on over to the HISTORY.md file.

Discover how to contribute via the CONTRIBUTING.md file.

• 2018+ Benjamin Lupton — Accelerating collaborative wisdom.
• 2016-2017 EGOIST — Indie Hacker

• Benjamin Lupton — Accelerating collaborative wisdom.

• Benjamin Lupton — view contributions
• EGOIST — view contributions
• Greenkeeper — view contributions

• Andrew Nesbitt — Software engineer and researcher
• Balsa — We're Balsa, and we're building tools for builders.
• Codecov — Empower developers with tools to improve code quality and testing.
• Poonacha Medappa
• Rob Morris
• Sentry — Real-time crash reporting for your web apps, mobile apps, and games.
• Syntax — Syntax Podcast

• Andrew Nesbitt
• Armen Mkrtchian
• Balsa
• Chad
• Codecov
• dr.dimitru
• Elliott Ditman
• entroniq
• GitHub
• Hunter Beast
• Jean-Luc Geering
• Michael Duane Mooring
• Michael Harry Scepaniak
• Mohammed Shah
• Mr. Henry
• Nermal
• Pleo
• Poonacha Medappa
• Rob Morris
• Robert de Forest
• Sentry
• ServieJS
• Skunk Team
• Syntax
• WriterJohnBuck

Unless stated otherwise all works are:

• Copyright © 2018+ Benjamin Lupton
• Copyright © 2016-2017 EGOIST

and licensed under:

• Artistic License 2.0