jasmine-core
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Jasmine is a Behavior Driven Development testing framework for JavaScript. It does not rely on browsers, DOM, or any JavaScript framework. Thus it's suited for websites, Node.js projects, or anywhere that JavaScript can run.
Upgrading from Jasmine 4.x? Check out the upgrade guide.
Please read the contributors' guide.
There are several different ways to install Jasmine, depending on your environment and how you'd like to use it. See the Getting Started page for details.
See the documentation site, particularly the Your First Suite tutorial for information on writing specs, and the FAQ.
Jasmine tests itself across popular browsers (Safari, Chrome, Firefox, and Microsoft Edge) as well as Node.
| Environment | Supported versions |
|---|---|
| Node | 20, 22, 24 |
| Safari | 16*, 17*, 26* |
| Chrome | Evergreen |
| Firefox | Evergreen, 102*, 115*, 128*, 140 |
| Edge | Evergreen |
For evergreen browsers, each version of Jasmine is tested against the version of the browser that is available to us at the time of release. Other browsers, as well as older & newer versions of some supported browsers, are likely to work. However, Jasmine isn't tested against them and they aren't actively supported.
* Supported on a best-effort basis. Support for these versions may be dropped if it becomes impractical, and bugs affecting only these versions may not be treated as release blockers.
To find out what environments work with a particular Jasmine release, see the release notes.
Copyright (c) 2008-2019 Pivotal Labs
Copyright (c) 2008-2026 The Jasmine developers
This software is licensed under the MIT License.
Mocha is a feature-rich JavaScript test framework running on Node.js and in the browser, making asynchronous testing simple. It's often compared to Jasmine, with the main difference being that Mocha allows for more flexibility in terms of assertion libraries, mock/stub utilities, and reporting.
Jest is a delightful JavaScript Testing Framework with a focus on simplicity. It works out of the box for any React project but can be used more broadly. It includes its own assertion library and has a more powerful mocking library compared to Jasmine.
Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any JavaScript testing framework. It's often used in conjunction with Mocha and provides a more expressive syntax and additional assertions over Jasmine's built-in matchers.
AVA is a test runner for Node.js with a concise API, detailed error output, and process isolation that lets you develop with confidence. It's different from Jasmine in that it runs tests concurrently, which can be a significant advantage for testing I/O heavy operations.
FAQs
Simple JavaScript testing framework for browsers and node.js
The npm package jasmine-core receives a total of 2,076,544 weekly downloads. As such, jasmine-core popularity was classified as popular.
We found that jasmine-core demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 3 open source maintainers collaborating on the project.
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