Discover Top 10 Reliable JavaScript Test Tools and Choose the Best One

The importance of testing JavaScript code cannot be underestimated. It’s the only way to ensure everything is working well in your browser. There are many JavaScript testing tools to pick from when you want to incorporate functionality on React, Angular, and Node.js.

Types of Testing

Before getting into these tools, it’s important to know that there are many forms of testing. They include the following:

Unit Testing involves checking individual units/components. They are usually tested to ensure they’re functioning as expected.

Integration Testing entails a combination of individual components to be checked as one unit. The objective of this testing is to ensure the interaction of all separate units with each other as required.

Functionality Testing is where the whole system is tested against the functionality requirement. This is performed by inputting special values in all features/functions and then observing their output.

Even though there are numerous types of testing, let’s discuss some of the tools that you can utilize to test JavaScript.

Types of Test Tools

Test tools are categorized into various functionalities. Some offer one functionality, while others are designed to offer a combination. It’s good to use a mix of multiple tools. This will help you get the best set of functionality. Let’s explore some of these types.

Test launchers allow you to test your launch in Node.js or a browser with configuration using a UI or a CLI.

Testing structure gives you the opportunity to organize your test files.

Assertion functions allow you to check whether the test results are as projected or not. They’re used to ensure the tested variables have the anticipated value.

Browser controllers stimulate the users’ actions for functional tests.

Visual regression tools assist in comparing your website to the previous versions visually through image comparison methods.

Top 10 JavaScript Test Tools

Now, let’s look at the best test tools you should consider in 2020.

  1. AVA

It’s not a secret that AVA is an excellent choice for testing JavaScript. You can utilize this tool to conduct testing of Node.js code. It comes with a concise API, offers support for the latest languages, and provides other numerous benefits. The JavaScript testers like this tool as it comes with optimum speed, and this allows them to run multiple tests at the same time. It also has a simple test syntax.

  1. Cucumber.js

This tool runs on modern web browsers and Node.js. It’s perfect for testing since it provides easy and timely communication within the individuals and the alternative to perform automated tests in plain languages. This means that it can be read by any individual who took part in the testing process. Nevertheless, communication can be enhanced since this tool is an executable data utilized to conduct testing. It also won’t work when installed internationally.

  1. Enzyme

This tool is created for React. It offers the developers the capability to set up and simulate the running time based on the output. The API is the same as a DOM (document object modeling) for jQuery. You can also use it to evaluate React Native features.

  1. Karma

This is a great JavaScript test tool since it allows code execution in numerous browsers, including mobile. One of the benefits of Karma is that you don’t have to set the entire pack of configurations. In its place, the developers design code and immediately receive a response from testing.

  1. Jasmine

This is also known as a behavior-driven test tool. It’s not reliant on any other JavaScript framework and doesn’t need a DOM. It comes with a syntax that makes it easy to test writing and is ideal for custom website programming. Furthermore, Jasmine is used in projects that involve Node.js and anything that runs on Java.

  1. Jest

The industry professionals consider Jest a complete JavaScript restoring tool. It doesn’t require configuration. It also works right out of the box. Remember to start with the tests that failed before. The tool is compatible with famous JavaScript technologies, including Node.js, Vue, Babel, and Angular.

  1. Luna

There are numerous opinions concerning this tool since it provides many benefits such as the capability to perform unit testing with minutes. It offers reports of code coverage without the necessity to install any extra modules. You also don’t need to do any configuration. However, remember Luna doesn’t provide transpiling. This implies that you won’t be able to utilize it with TypeScript and CoffeeScript. It also doesn’t support old browsers.

  1. Mocha

This great tool offers numerous features that are run in browsers and Node.js. It provides the developers with the capability to test asynchronous codes with ease. This is because the tests are conducted serially, and this allows you to flexibly and accurately generate reports while you have a chance to map unseen exceptions.

  1. Protractor

This is a complex tool for testing JavaScript in Angular.js. The tests are conducted against the application in the browsers where Protractor interacts with it.

  1. QUnit

This is a component test tool for projects using jQuery. It was designed by investor John Resig. It is a quick and simple to use tool with an extendable API that can be utilized to test JavaScript code. In the case of a failed test, QUnit offers expenditure and a detailed response that the problem can be solved within a short period of time.


No matter what tools you choose, ensure that every team member can use them. This is because even a bug that passes unseen when testing JavaScript will be sent to the user, and this will be dangerous to the project. It’s important to perform both manual and automated tests since there are numerous places where bugs can hide. This means that you also need the human testers in the process. Note that your preference of tools will depend on unique features, such as testing, transpiling, and plain language. That’s why it’s important that you evaluate all the available alternatives in the market. It would be hard to change the framework in the middle of the procedure.