ESM Unit vs QUnit
ESM Unit
github.com
QUnit
qunitjs.comSide by side
| Figure | ESM Unit | QUnit |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 0 | 1 |
| Spec score · JavaScript Testing Frameworks | 7.3 (#15) | 8.5 (#2) |
| Debugging | A failed test can be rerun on its own by clicking “Isolate” in the browser window. | The browser runner can prioritize previously failing tests and rerun selected tests or modules. |
| Distribution | The README instructs users to install ESM Unit with npm as a development dependency. | QUnit 3.0.0 is available as JavaScript and CSS files from the jQuery CDN and as an npm package. |
| Founded | 1983 | 2008 |
| Integrations | The README recommends Sinon for stubbing, mocking, and assertions against mocks. | Documented browser automation integrations include Karma, Web Test Runner, Testem, WebdriverIO, and TestCafe. |
| Intended users | The stated use case is developers who need to unit test native ECMAScript modules in web browsers. | QUnit is intended for developers testing JavaScript in the environment where the code runs, including browsers, workers, and servers. |
| Purpose | ESM Unit is a unit testing tool for native ECMAScript modules in web browsers. | QUnit is a JavaScript testing framework originally developed for jQuery and now used by JavaScript libraries and applications. |
| Support | The project README invites users to open an issue or pull request and says it welcomes contributions. | The project directs users to GitHub issues, Stack Overflow, and its Matrix chat room for questions and help. |
Plans
In their own words
QUnit
QUnit is a free JavaScript testing framework first developed for the jQuery project. It runs in web browsers, Node.js, SpiderMonkey and Web Worker threads, so developers can test code in different runtime environments. Its APIs allow custom assertions, test runners and reporters. Browser releases have no runtime dependencies, and the project describes Node.js setup as requiring zero configuration and browser setup as minimal. For DOM tests, QUnit resets fixture markup after each test. Its browser reporter presents results and can include expected and actual values, assertion details and failure stack traces. Developers can rerun selected tests or modules and prioritize previously failing tests. Guides cover modules, asynchronous tests, callbacks and assertions, while plugins can add or modify capabilities such as DOM assertions, themes and JUnit XML reports. QUnit integrates with browser automation tools including Karma, Web Test Runner, Testem and WebdriverIO’s QUnit service. QUnit 3.0 is distributed through the jQuery CDN and npm, and is also installable with Yarn. For its ESM version, the compatibility guide lists Node.js 18+ and specified browser versions.