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Mocha vs QUnit: What are the differences?

What is Mocha? Simple, flexible, fun javascript test framework for node.js & the browser. Mocha is a feature-rich JavaScript test framework running on node.js and the browser, making asynchronous testing simple and fun. Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases.

What is QUnit? A JavaScript Unit Testing framework. QUnit is a powerful, easy-to-use JavaScript unit testing framework. It's used by the jQuery, jQuery UI and jQuery Mobile projects and is capable of testing any generic JavaScript code, including itself!.

Mocha and QUnit can be categorized as "Javascript Testing Framework" tools.

"Open source" is the top reason why over 130 developers like Mocha, while over 4 developers mention "Simple" as the leading cause for choosing QUnit.

Mocha and QUnit are both open source tools. Mocha with 18.1K GitHub stars and 2.44K forks on GitHub appears to be more popular than QUnit with 3.83K GitHub stars and 763 GitHub forks.

According to the StackShare community, Mocha has a broader approval, being mentioned in 399 company stacks & 272 developers stacks; compared to QUnit, which is listed in 11 company stacks and 6 developer stacks.

What is Mocha?

Mocha is a feature-rich JavaScript test framework running on node.js and the browser, making asynchronous testing simple and fun. Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases.

What is QUnit?

QUnit is a powerful, easy-to-use JavaScript unit testing framework. It's used by the jQuery, jQuery UI and jQuery Mobile projects and is capable of testing any generic JavaScript code, including itself!
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    What are some alternatives to Mocha and QUnit?
    Jasmine
    Jasmine is a Behavior Driven Development testing framework for JavaScript. It does not rely on browsers, DOM, or any JavaScript framework. Thus it's suited for websites, Node.js projects, or anywhere that JavaScript can run.
    Jest
    Jest provides you with multiple layers on top of Jasmine.
    Chai
    It is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework. It has several interfaces that allow the developer to choose the most comfortable. The chain-capable BDD styles provide an expressive language & readable style, while the TDD assert style provides a more classical feel.
    Cypress
    Cypress is a front end automated testing application created for the modern web. Cypress is built on a new architecture and runs in the same run-loop as the application being tested. As a result Cypress provides better, faster, and more reliable testing for anything that runs in a browser. Cypress works on any front-end framework or website.
    Enzyme
    Enzyme is a JavaScript Testing utility for React that makes it easier to assert, manipulate, and traverse your React Components' output.
    See all alternatives
    Decisions about Mocha and QUnit
    Dschinkel Schinkel
    Dschinkel Schinkel
    Mocha
    Mocha
    Jest
    Jest
    JavaScript
    JavaScript
    React
    React
    Enzyme
    Enzyme
    #Tdd
    #Bdd
    #Testdrivendevelopment

    I use both mocha and Jest because:

    • I don't care whether teams use Jest or Mocha. But jest is way too overhyped. Most devs are writing integration tests and think that it's so much better but frankly I don't write integration tests as the way to get both design feedback and confidence when I code. I adhere to the test pyramid, not ice cream cone or the dumb "trophy"

    • I TDD, so I only ever use the "API" of test frameworks. I don't do a lot of integration tests for TDD and all the bells and whistles Jest provides you from the command-line I just don't need. And I certainly do not care about or touch Jest Snapshots, I despise them

    • My tests are fast enough because I write isolated tests with TDD, so I don't run into performance issues. Example: I write my tests in a way that I can run 300 tests in literally 1 second with mocha. So the Jest ability to pinpoint and only run those tests which are affected by code changes. I want to run all of them every time when I TDD. It's a different mindset when you TDD

    • I also mainly code in IntelliJ or WebStorm because I feel the tools in that IDE far surpass VSCode and I also love running the test UI runner in it vs. lousy command-line

    • I feel both mocha and Jest read just fine in terms of code readability. Jest might have shorter assertion syntax but I don't really care. I just care that I can read the damn test and my tests are written well and my test descriptions, as well as the code itself including constants represent business language, not technical. I care most about BDD, clean code, 4 rules of simple design, and SOLID

    • I don't like using mock frameworks so no I don't use Jest's Mocking framework. I don't have to mock a lot in my tests due to the nature of how I strive to code...I keep my design simple and modular using principals such as clean code and 4 rules of simple design. If I must mock, I create very simple custom mocks with JS

    • On the contrary to the belief that integration tests and mount are the way to go (this belief drives me absolutely crazy, especially Dodd's promoting that), I TDD with shallow & enzyme. My tests are simple. My design is driven by my tests and my tests give me quick and useful feedback. I have a course I'm working on coming out soon on TDD with React to show you how to truly test the FE and why the ice cream cone and trophy suck (you're being scammed people). Watch for that here: https://twitter.com/DaveSchinkel/status/1062267649235791873

    Don't forget to upvote this post!

    Mocha Jest JavaScript React @jsdom Enzyme #tdd #bdd #testdrivendevelopment

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    Scott Mebberson
    Scott Mebberson
    CTO / Chief Architect at Idearium Β· | 2 upvotes Β· 23.7K views
    Mocha
    Mocha
    Jest
    Jest

    We used to Mocha for as our primary Node.js test framework. We've now switched to Jest and haven't looked back.

    Jest is faster and requires less setup and configuration. The Mocha API and eco-system is vast and verified, but that also brings complexity.

    It you want to get in, write tests, execute them and get out, try Jest πŸ˜€

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    Jack Graves
    Jack Graves
    Head of Product Development at Automation Consultants Β· | 3 upvotes Β· 41.1K views
    atAutomation ConsultantsAutomation Consultants
    JUnit
    JUnit
    Jest
    Jest
    Apache JMeter
    Apache JMeter
    Mocha
    Mocha

    We use JUnit and Jest to perform the bulk of our automated test scenarios, with additional work with Apache JMeter for performance testing - for example, the Atlassian Data Center compliance testing is performed with JMeter. Jest provides testing for the React interfaces, which make up the backend of our App offerings. JUnit is used for Unit Testing our Server-based Apps. Mocha is another tool we use.

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    Interest over time
    Reviews of Mocha and QUnit
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    How developers use Mocha and QUnit
    Avatar of Matt Welke
    Matt Welke uses MochaMocha

    Used for unit testing when working with Node.js. Used over other testing frameworks because of good compatibility with TypeScript and ts-node.

    Avatar of Kang Hyeon Ku
    Kang Hyeon Ku uses MochaMocha

    javascript ν…ŒμŠ€νŠΈλ₯Ό μœ„ν•΄ 써본 ν”„λ ˆμž„μ›Œν¬ 이닀. 초반 유λͺ…ν•œ ν”„λ ˆμž„μ›Œν¬μ€‘ ν•˜λ‚˜μ˜€λŠ”λ° μš”μ¦˜μ€ λ„ˆλ¬΄ ν…ŒμŠ€νŠΈ ν”„λ ˆμž„μ›Œν¬λ„ λ‹€μ–‘ν•΄μ Έ 잘 λͺ¨λ₯΄κ² λ‹€. junit μ—κ²ŒλŠ” hamcrest 이 μžˆλ‹€λ©΄ mocha μ—κ²ŒλŠ” chaiκ°€ μžˆλ‹€.

    Avatar of Dave Woolfenden
    Dave Woolfenden uses MochaMocha

    Is a feature-rich JavaScript test framework running on Node.js and in the browser supporting asynchronous testing.

    Avatar of Kingsley Victor
    Kingsley Victor uses MochaMocha

    Mocha is ideal for running tests on apis built with Node's Express

    Avatar of Tim De Lange
    Tim De Lange uses MochaMocha

    Unit testing on shared code between brow ser and back end.

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