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Resources > Blog >
Top 7 Unit Testing Frameworks: A Quick Comparison

Top 7 Unit Testing Frameworks: A Quick Comparison

Oliver Moradov

What is a Unit Testing Framework?

Unit testing is a common skill among software developers—chances are you have at least some experience writing unit tests. As you scale up your unit testing, unit testing frameworks come in useful. These frameworks, most of which are open source, can help you create large test suites and execute them automatically every time you build a new version of your software.

Unit testing frameworks provide convenient utilities for building unit tests, and allow you to execute them and report on results. Unit test frameworks are not only useful for development stages. They can also be useful for software design, debugging, performance optimization, and testing stages of a software development project.

Related content: Read our guide to cypress testing.

This is part of an extensive series of guides about Software Development.

Related content: Read our guide to unit testing best practices

In this article, we’ll cover the following unit testing frameworks:

  1. Jest
  2. JUnit
  3. NUnit
  4. Mocha
  5. Cypress
  6. Jasmine
  7. Storybook
  8. Testcafe

1. Jest

License: MIT License

Repo URL: 

Jest is a JavaScript framework initially developed by Meta and later released as an open source project. It is commonly used with web applications built with React and React Native. It simplifies unit testing for front-ends. Instead of wasting efforts on extensive, time-consuming configuration, you can use Jest—it requires zero configuration.

Jest can help you validate almost all JavaScript functionality, including the browser rendering of your web applications. You can also use this framework for automated browser testing. It offers a package of an assertion library, a test runner, and a built-in mocking library. Jest is ideal for testing JavaScript library projects like AngularJS, Node JS, Vue JS, TypeScript, and Babel.

2. JUnit

License: Eclipse Public License—v 2.0

Repo URL: 

JUnit is an open source framework you can use to write and run tests. It aims to help develop bug-free and reliable code written in Java. JUnit provides test runners that run tests and assertions to test the expected results. No need to manually check the test results—JUnit runs tests and checks the results automatically. 

JUnit displays test results interactively as a progress bar. It offers several graphs representing your test’s progress, displaying a green color when a test runs smoothly and a red color when it fails. It also provides annotations to help you identify test methods.

3. NUnit

License: MIT License

Repo URL: 

NUnit is an open source framework you can use to write and run tests in .NET. It provides a console runner that you can use for batch execution of tests. It also lets you use Test Adapter to run tests via Visual Studio. Alternatively, you can use third-party runners. 

You can access the console runner works via the NUnit Test Engine, which powers the runner, enabling it to explore, execute, and load tests. It can also run tests in a separate process. In this case, the engine uses the nunit-agent program to run the tests.

NUnit supports data-driven tests and multiple platforms, such as Silverlight and .NET Core. It can run tests in parallel and lets you add test cases to one or multiple categories for selective running.

4. Mocha 

License: MIT License

Repo URL: 

Mocha.js is a JavaScript test framework that can run in the browser and on Node.js. This open source project provides simple interfaces that let you test synchronous as well as asynchronous code. 

Mocha.js includes a default BDD interface and various other interfaces to help you define test suites, hooks, and individual tests, such as QUnit, Exports, Require, and TSS. It runs tests serially to deliver accurate and flexible reporting. You can employ this framework to map uncaught exceptions to the corresponding test cases.

Learn more in our detailed guide to mocha testing.

4. Cypress

License: MIT License

Repo URL: 

Cypress is an open source tool for testing front-end web applications. It can take snapshots while your tests are running and provides readable errors and stack traces to facilitate fast debugging. Cypress has automatic waiting functionality that ensures tests wait for commands and assertions before moving forward.

Cypress provides spies, stubs, and clocks that can help you verify and control the behavior of functions, server responses, or timers. It also provides network traffic control and cross-browser testing capabilities. 

5. Jasmine 

License: MIT License

Repo URL: 

Jasmine is a testing framework you can run on JavaScript-enabled platforms without intruding on the IDE or application. This open source framework provides easy-to-read syntax and a library that includes all components needed to test your code. 

You can use Jasmine in the browser and also for Node, Ruby, and Python. It is fast, provides a straightforward and rich API, and lets you use natural language to describe your test and its expected results.

6. Storybook

License: MIT License

Repo URL: 

Storybook is a tool that lets you build and test user interfaces (UI). It provides an environment that enables you to test components in isolation. In this environment, a story is a way to explore a component in numerous variations and complexities. Storybook provides a test runner and integrations with the JavaScript ecosystem to help expand your UI test coverage. 

The test runner can automatically test an entire Storybook and catch broken stories. The visual test functionality captures a screenshot of each story and compares them against baselines to identify integration and appearance issues. You can use accessibility tests to identify usability issues related to hearing, visual, mobility, speech, neurological, or cognitive disabilities and interaction tests to verify component functionality.

7. Testcafe

License: MIT License

Repo URL: 

Test Cafe is an open source Node.js automation tool for testing web applications. You can install it with a single command and run it on various environments, including Linux, Windows, and macOS. There is no need for plugins or external libraries.

Test Cafe lets you write scripts in JavaScript TypeScript. You can run tests on any browser—there is no need to download separate drivers for each browser. It provides a built-in waiting mechanism and can run tests on mobile devices and remote computers.

Security Unit Testing with Bright Security 

Bright is a developer-first Dynamic Application Security Testing (DAST) scanner, the first of its kind to integrate into unit testing, revolutionizing the ability to shift security testing even further left. You can now start to test every component / function at the speed of unit tests, baking security testing across development and CI/CD pipelines to minimize security and technical debt, by scanning early and often, spearheaded by developers. With NO false positives, start trusting your scanner when testing your applications and APIs (SOAP, REST, GraphQL), built for modern technologies and architectures.

See Additional Guides on Key Software Development Topics

Together with our content partners, we have authored in-depth guides on several other topics that can also be useful as you explore the world of software development.

Technical Documentation

Authored by Swimm

Code Documentation

Authored by Swimm

Gitlab CI

Authored by Codefresh


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What Is Domain Hijacking?  Domain hijacking refers to the unauthorized acquisition of a domain name by a third party, effectively taking control away from the rightful owner. This form of cyber attack can lead to significant disruptions, including loss of website functionality, email services, and potentially damaging the brand’s reputation.  Domain hijackers often exploit security

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Modern day organizations face a constant barrage of cyber threats, making it imperative to implement robust vulnerability management processes. Vulnerability management is a systematic approach to identifying, evaluating, treating, and reporting on security vulnerabilities in systems and their associated software. In this blog post, we’ll delve into the four crucial steps of vulnerability management process

Vulnerability Scanners: 4 Key Features, Types, and How to Choose

A vulnerability scanner is a specialized software tool designed to assess the security of computers, networks, or applications by automatically detecting and analyzing weaknesses. These scanners proactively search for security vulnerabilities, such as unpatched software, misconfigurations, and other security gaps that could be exploited by attackers. Some scanners can simulate the actions of an attacker to help identify exploitable vulnerabilities.

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