JavaScript code testing is essential to ensure that JavaScript applications run seamlessly on Node.js and in the browser. It is essential to keep bugs out. JavaScript testing is possible in many ways. Framework and test runners are available for unit, functional, and integration testing. All of these are available for JavaScript ecosystem. They cover browsers as well as Node.js, React, and Angular frameworks. This blog article will discuss ten of the most trusted JavaScript testing tools that developers can use in their applications.
1. AVA
This test runner is designed for Node.js. It provides precise API, process isolation and comprehensive error output. It also supports new language attributes. It is ideal for testing server applications, and Node.js models. It is not the best choice for testing UI applications. AVA also has a unique feature that marks a test as a ‘to-do’ task. It is important to note that each file is independently tested and run. It also offers speed and minimalism, the ability to run tests in tandem, as well as simple test syntax. It supports sync functions and observables.
2. Cucumber.js
Cucumber.js, another tool to test JavaScript implementation. It works with managed Node.js editions as well as modern browsers for the internet. Cucumber has many benefits. It can run automated tests in a simple language that is easily understood by the entire team. It improves communication, collaboration, trust, and team communication. Cucumber.js is an executable file that can be used for running your suites (also known as test features)
3. Enzymes
This tool is also suitable for testing the React JavaScript UI Library. Enzymes was designed to make it easy and straightforward to test React components. The output is easy to manipulate, simulate, or traverse for developers. Its API mimics jQuery API for DOM manipulation and traversal. Enzyme does not restrict the use of an assertion library, or a test runner. It can also be used for evaluating the React Native components.
4. Karma
This test runner allows you to execute code on multiple web browsers. Karma supports all major browsers, even mobile versions. Karma, according to the developers of the project, is the ideal setting where specialists don’t have to set up large numbers of configurations. Instead, they can simply write code and get immediate feedback about their tests. Karma is the ideal choice for low-level unit testing.
5. Jasmine
This tool is considered a behavior-driven testing framework. It doesn’t need a DOM and doesn’t depend upon any other JavaScript frameworks. Its advocates refer to its syntax as being capable engendering seamless writing of tests. Pivotal Labs manages Jasmine. It is perfect for website testing, Node.js and any other JavaScript-based applications. It was designed to allow easy testing on a wide variety of browsers and use-cases. Jasmine is small and manageable, so it is not dependent on other browsers.
6. Jest
Jest is a JavaScript testing tool that can be used to test JavaScript scripts. It functions in a unique way and doesn’t require configuration. It can be used for most JavaScript projects. Jest tests have a special global state that can be run simultaneously. The first failed test should be run, and subsequent runs must be adjusted based on the size of the test files. It is compatible with a variety of JavaScript technologies such as Vue, React, Node.js and Vue. You can run the tests to place larger objects in a better perspective. Jest integrates objects and methods into a global environment when testing files.
7. Luna
This is an opinionated test framework that doesn’t require any configuration. According to the product information developers can test their first unit in a matter of minutes. Luna does not require the installation of additional modules to provide code coverage details. The tests should be written using ES6 modules. They can then be run in a browser. Concurrency is supported by this tool, which allows multiple test groups to be run simultaneously. It does not support trans-piling. This means that it won’t work in conjunction with TypeScript and CoffeeScript. Luna does not support older browsers.
8. Mocha
Mocha is a Node.js-based test framework. It can also be used in the browser. It makes synchronous code testing fun and easy. This tool allows developers to run multiple tests at once. It also provides flexible reporting that is accurate and precise. It also helps map out unaccounted exceptions.
