Top 5 JavaScript testing frameworks

  • Top 5 JavaScript testing frameworks

Over the last few years, the programming landscape has changed dramatically.

There has been much notable advancement in the field of web development and digital marketing. Developer communities are now adopting more dynamic frameworks rather than conventional (old) programming languages like Java, PHP, and NET. Developers these days prefer more dynamic frameworks based on JavaScript.

We are marching towards an era of automation. Where every company which may be a start-up or a large-scale enterprise, is endeavoring to integrate automation testing in their release cycles as efficiently as they can. The cause is, drastic automation testing reduces the effort involved in validating repetitive test attempts. Now JavaScript is not referred to as an only developer programming language just because of the increasing demand for automation testing, JavaScript testing frameworks have been enhanced for fulfilling many other purposes, some of them fit for unit testing, while some are made for E2E(End-to-End) testing. It is simple that automation testers throughout the world have evolved pretty keenly to these JavaScript testing frameworks.

There are various JavaScript testing frameworks made available for automation testers that have become a reason for confusion for many. It is only subjective, the more choices you have in front of you, the higher time it will take for you to determine which JavaScript automation testing framework provides the best for you. As you read below you will discover the best JavaScript and its advantages. 

What is a JavaScript Testing Framework?

The JavaScript testing framework is a compelling framework based on JS, which is well noted for its ease of application in both frontend and backend development. These developments over time also result in the necessity for excellent testing tools.

Mocha js 

Mocha JS has been one of the most famous JavaScript testing systems since 2011. It works on Node.js and gives similarity to both frontend and backend no concurrent testing. With firm documentation support, Mocha has demonstrated to be a grounded system in the course of recent years. 

Facilitated on Github, Mocha is regarded for its flexibility, and thus, it has been demonstrated to be considered possibly the most relied-on library among JavaScript engineers. It affords compatibility for both frontend and backend testing, Node JS debugger is supported which makes error tracing more obvious, accurate reporting provides support for all browsers including the decapitated Chrome library, and a very convenient framework for the developers to record test cases. 


Jest is ostensibly the most mainstream JavaScript testing structure utilized and kept up with Facebook. The JEST testing structure gives a “zero-design” testing experience. 

Jest is a profoundly favored system for applications dependent on React. It gives an unambiguous and extremely helpful interface. This structure comes packaged for certain fascinating highlights like depiction testing and an underlying apparatus for code inclusion. There are likewise a ton of assets accessible online for JEST. The main feature of the same is compatible with Node JS, React, Angular, Vue JS, and other Babel-based projects, Standard syntax with documentation support, very fast and highly performant, and managing tests with larger objects is possible using Live Snapshots. 


Came into existence in 2010, Jasmine is an open-source and famous JavaScript testing framework. It has the capacity of testing all types of JavaScript applications. This framework supports Behavioural Driven Development (BDD). With the help of Jasmine, one can perform test cases similar to user behavior on online websites. Jasmine is highly influenced and similar to JS Spec, Rspec.

Jasmine is very worthwhile for front-end testing. It involves both visibilities testing as well as the responsiveness testing of UI across a plethora of devices with various resolutions. One can also predict user behavior with custom delay and set period for simulating the actual user behavior. The main consequence of this provides a small, clean, and straightforward syntax for easy testing does not require any Document Object Model (DOM) and implements support for frontend and backend tests, ease in coding as the syntax practicing is very similar to a natural language, strong documentation and to community support. 


Karma is another very popular open-source productive testing environment. It allows a QA to perform tests for an application in all kinds of different environments. Karma enables the application script to be used and experienced on real browsing devices such as phones and tablets. Karma aims to provide a testing condition for developers wherein they don’t need to set up loads of configurations. Instead, they can just take the tests and get instant feedback.

Supports integrations with top CI/CD tools such as Jenkins, Travis, and Semaphore, tests on real devices and browsers are possible, provides support for headless environments like Phantom JS, and supports remote testing directly from a terminal or IDE. It is a framework for agnostic, which means it can represent tests with popular frameworks like Mocha, Jasmine. One can also record a simple adapter for a specific framework.


Puppeteer is a library preferably than a framework moderately like the rest of the list. It has been taken into consideration since it offers a variety of advantages with regard to JavaScript testing. It is a Node library that provides a high-level API. This API is needed to control Chrome or Chromium over the DevTools protocol. One of the limitations of this is the point that it can only be used with Chrome and Chromium. It can function for browser-specific applications such as page structure tests, exerting website screenshots, and more. One can also crawl and capture pre-rendered content for Single Page Applications (SPA). Any more benefits for the same are easy automating UI testing, form submission, and keyboard inputs, easy generation of screenshots and PDFs of webpages, and support for testing chrome extensions. 

One can easily find performance errors on a site using the timeline trace. Although Puppeteer has been recently introduced in the testing landscape, it has already been adopted by developers in large numbers. The future for Puppeteer looks promising.