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Top 23 JavaScript Testing Framework Projects
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In this article, we explore logging best practices that are largely tool-agnostic, but we'll demonstrate them using PactumJS, a powerful and extensible API testing tool, along with Mocha, a popular JavaScript test framework. For logging, we’ll use Pino, one of the fastest and most reliable structured loggers for Node.js.
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SurveyJS
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Project mention: JavaScript package manager - How to fix Cannot find module 'cheerio' error with Enzyme in Yarn 1 projects | dev.to | 2025-06-11
Cheerio Update to 1.0.0 is breaking Enzyme 3.11.0 for Node < 18.17.0 #2606
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Jasmine is a standalone JavaScript testing framework that emphasizes simplicity and ease of use. It provides all necessary tools for writing tests without requiring additional libraries. Jasmine’s BDD syntax makes it easy to describe and structure tests in a way that’s easy to understand. While it doesn’t come with advanced features like mocking or spying, its lightweight nature and straightforward approach make it a good option for small to medium-sized React projects.
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nightwatch
Integrated end-to-end testing framework written in Node.js and using W3C Webdriver API. Developed at @browserstack
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Stream
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7. TestCafe TestCafe is a powerful open-source testing tool designed specifically for web applications. It simplifies the testing process by allowing developers to write tests in JavaScript or TypeScript without requiring browser plugins. TestCafe runs tests directly in the browser and supports a wide range of browsers without additional configurations. It provides an intuitive API for defining tests, making it accessible for both novice and experienced testers.
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Now, we need to figure out how to test in general. To begin with, we will use Mocha, Sinon, and to generate C8 reports:
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chai
BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.
Unit Testing: Yes, Rest APIs can also be tested using unit tests. This involves executing the HTTP requests and validating the result. Although this method initially requires more effort, it offers the advantage of complete integration into your development process and enables continuous testing. Each programming language has its own tools. I mainly develop with JavaScript, so I can show you a practical example here. I use Mocha and Chai as testing frameworks. For each test, one or more requests are sent to the corresponding Rest API endpoints and the result is validated.
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Project mention: Ask HN: How do you promote your personal project in limited bugget? | news.ycombinator.com | 2025-05-22
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blanket
blanket.js is a simple code coverage library for javascript. Designed to be easy to install and use, for both browser and nodejs.
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Project mention: Tools and libraries widely used in micro frontend architectures! | dev.to | 2024-08-09
Official Website
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autochecker
♻️ Test your libraries in many different versions of NodeJS, Ruby, Java and many other languages
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
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A note from our sponsor - Stream
getstream.io | 15 Jul 2025
Index
What are some of the best open-source Testing Framework projects in JavaScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | mocha | 22,798 |
| 2 | ava | 20,810 |
| 3 | Enzyme | 19,918 |
| 4 | Nightmare | 19,595 |
| 5 | jasmine | 15,812 |
| 6 | karma | 11,969 |
| 7 | nightwatch | 11,939 |
| 8 | TestCafe | 9,860 |
| 9 | Sinon.JS | 9,730 |
| 10 | chai | 8,223 |
| 11 | qunit | 4,018 |
| 12 | taiko | 3,623 |
| 13 | slimerjs | 2,998 |
| 14 | proxyquire | 2,745 |
| 15 | expect.js | 2,101 |
| 16 | blanket | 1,395 |
| 17 | Nullstack | 781 |
| 18 | FrintJS | 757 |
| 19 | DalekJS | 695 |
| 20 | autochecker | 597 |
| 21 | totoro | 564 |
| 22 | Webix UI | 437 |
| 23 | Liquor Tree | 398 |
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