top js testing frameworks to use in 2020

11 Top JavaScript Testing Frameworks For Every Developer


There are a lot of Javascript testing libraries available in 2020. But using the best libraries for Javascript testing according to your requirement can save a lot of time. There have been a few prominent headways in the field of web development. Development people groups are currently embracing increasingly unique systems dependent on JavaScript.


Javascript testing (or JS testing) is a fundamental part when a developer is analyzing logic in his code. Like several things in the field of JavaScript, there are numerous decisions to make for how to test code. To assist you with smart time management, we’ve summed up 11 top JavaScript testing frameworks to use. And without any further delay, let’s hit some basics first!

Why Javascript Testing Is Important?

The principle is: If it has logic that a developer thought of, we need to see that it could suffice stress. Since we’re putting increasingly more logic on our front end codes, using complex test cases is an ideal choice.

Unit testing is the way to test the smallest piece of code in an isolated system. Why use it? As it helps you ensure that the created modules are meeting the necessities. Here, a unit can be almost anything that you want it to be — a line of code (or LOC), a method, or a class.

Industry experts try and make use of smaller tests as it allows you with a granular view of code’s performance.

Top JavaScript Testing Frameworks to Use

1. Mocha

Top JavaScript Testing Frameworks

This one is an all-rounder testing framework that permits a developer to pick the favored taxonomy (assert, expect, should).

It’s an independent open-source project and the most dependent upon module on npm. This also means that there exist many other dependent packages for it. Here are some key highlights of Mocha,

  • Simple to arrangement and setup
  • Works with any assertion library
  • Profoundly extensible
  • Offers a simple async testing

2. Jasmine

JavaScript Testing Frameworks 2020

It is mostly utilized for non-concurrent testing. It is an element rich JavaScript mechanization testing structure used for testing applications on Node.js. Jasmine permits precise and adaptable bug announcing by sequentially running test case experiments.

All you need is a work station with a web network to get your hands over this framework. Here are some key highlights,

  • Low overhead (no external dependencies in the core)
  • Supports both browsers and Node.js
  • Easy to install
  • Testing-ready out of the box
  • Good support & documentation

3. Karma

This one’s a general use case javascript testing system. There is support for continual tools like Travis, Jenkins, or Semaphore available and you can run tests on genuine gadgets or on a headless phantomJS example.

It is system rationalist so you can portray your tests with Jasmine, Mocha and other frameworks too. Also, you can compose a basic connector for any structure you like. Some key features include,

  • Let’s you test your code on real devices like phones, and tablets
  • Is open-source and actively managed
  • Easy to debug using any major IDE

4. PhantomJS

best javaScript testing frameworks

This one’s popular as a mainstream headless browser framework. It is discontinued but still is used widely for automating web page interaction. So, for new development, it is presumably not the best choice. Most people have moved to Puppeteer. A few important features include,

  • Easy installation & debugging
  • Ability to run functional tests with frameworks like Jasmine, Mocha, QUnit, etc.

5. Puppeteer

 javascript testing frameworks to use in 2020

Puppeteer is new to the rundown and makes PhantomJS out of date. Puppeteer is a Node library and gives you a significant level API to control headless browsers like Chrome or Chromium. You can likewise design it to utilize full (non-headless) Chrome or Chromium. A few features include,

  • Seamless support for SPA (Single-Page Application) and SSR (Server-Side Rendering)
  • Run your tests directly in an up-to-date, automated testing environment
  • Capture a timeline trace of your site

6. Nightwatch.js

This one portrays itself as a simple to-utilize E2E testing solution for browser-based applications and websites. It is based on Node.js, moreover, utilizes the Selenium WebDriver API to perform orders and attestations on DOM components for front end testing. A few highlights include,

  • Built-in test runner allows you to run tests either sequential or in a parallel manner
  • Comes with a fluent Page Object Model support
  • You can easily integrate your tests in your build process by using tools like Jenkins, Hudson, etc

7. Jest

Jest is developed by Facebook and is widely used for testing JavaScript code. It is quite simple to use, and supports Babel, TypeScript, Angular, Vue, Node, and React. Jest offers us the following,

  • Demands zero-configuration on most projects
  • Offers Snapshot testing
  • Code-coverage reports integrated
  • Great API that’s well documented
  • Easy mocking using the integrated custom resolver

8. Nemo.js

It is an open-source, Node.js automation system that was created by PayPal. Nemo.js gives a basic method to add Selenium automation to your Node.js web application projects. Additionally, it provides plugin utilities to incorporate custom features into your tests. Some key features include,

  • Plugin architecture
  • Easily combines with combines mocha.js

9. Buster.JS

It is a browser JavaScript testing toolbox for Node and browser. You can utilize it to do browser testing for browser-based automation. It can likewise be utilized for QUnit-style HTML page testing just as in headless browsers. Buster.JS is at present still in beta mode.

Its key features include,

  • Ability to run asynchronous tests in parallel
  • Run QUnit styled tests with no extra configuration
  • Superb assertions

10. DalekJs

This one’s another open-source UI Test Automation instrument that permits you to do cross-browser testing with JavaScript. DalekJS is right now a developer preview but offers amazing automated cross-browser testing capabilities.

As per its documentation, a few highlights include,

  • Flexible approach towards running your functional tests
  • Automated assertions checks

11. Selenium WebDriver

This is unquestionably the most generally acknowledged, and best javascript testing framework. You can utilize Selenium to thoroughly perform automated cross-browser testing.

Furthermore, the fact that it is open-source makes Selenium WebDriver one of the top JavaScript testing frameworks in the business. Not only would you be able to utilize Selenium to perform automation testing with JavaScript but you can also automate boring web-based administration tasks with it. Some key features include,

  • Has extensions to emulate user interaction with browsers
  • Makes use of browser automation APIs
  • The grid module allows you to run tests in different machines across different platforms

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