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Tech riderRev. 20 Sept 2026

Testem

Ch 126.5of 23 JavaScript Testing Frameworks
  1. 1Runs onWindows, Mac, Linux
  2. 2CostsNot stated by the maker
  3. 3Coverage reportingYes
  4. 4Supported runtimesNode.js, Chrome, Firefox, Safari, Edge
  5. 5Parallel executionYes
4 lines stated Written from the maker's own pages: github.com
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Overview

Testem is ranked #12 of 23 in JavaScript testing frameworks on Specifiction. It runs on Windows, macOS, Linux.

Compared on JavaScript testing frameworks

Coverage reporting
Yesgithub.com
Supported runtimes
Node.js, Chrome, Firefox, Safari, Edgegithub.com
Parallel execution
Yesgithub.com

Facts

Purpose
Testem is a JavaScript test runner for running tests in real desktop browsers, Node, or a configured launcher.github.com · 4 Oct 2026
Frameworks
It supports Jasmine, QUnit, Mocha, and custom test framework adapters.github.com · 4 Oct 2026
Workflows
It supports test-driven development and continuous integration workflows.github.com · 4 Oct 2026
Browser testing
It can launch real browsers, including Chrome, Firefox, Safari, and Edge, and provides a Headless Chrome launcher.github.com · 4 Oct 2026
Platforms
The README lists macOS, Windows, and Linux as supported platforms.github.com · 4 Oct 2026
CI integrations
The README describes use with GitHub Actions and other CI systems, including Jenkins and TeamCity.github.com · 4 Oct 2026
Reporters
Built-in CI reporters include TAP, dot, xunit, and TeamCity, and custom reporters can be added.github.com · 4 Oct 2026
Preprocessors
The README lists Babel, TypeScript, Browserify, ESLint, JSHint, JSLint, and CoffeeScript support.github.com · 4 Oct 2026
Programmatic API
Testem exposes an API class with startDev, startCI, and startServer modes.github.com · 4 Oct 2026

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Where it ranks on Specifiction

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Sources