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Mocha

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Venus.js

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Mocha vs Venus.js: What are the differences?

Developers describe Mocha as "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. On the other hand, Venus.js is detailed as "*Where bugs go to die *". It is a testing tool for JavaScript (JS), which simplifies running unit tests. When you are developing a browser-based project in JS, you'll want to create unit tests and run them frequently. Typically, you'll write a unit test using some library, such as Mocha or Jasmine. These libraries let you define testcases (or "specs" if you are following a BDD style), and provide APIs for writing assertions.

Mocha and Venus.js can be primarily classified as "Javascript Testing Framework" tools.

Some of the features offered by Mocha are:

  • browser support
  • simple async support, including promises
  • test coverage reporting

On the other hand, Venus.js provides the following key features:

  • Use Simple annotations in your tests to specify which testing library you want to use, the file you are testing, other file dependencies, and a test harness template
  • Quickly run your browser-based tests directly from the command line using PhantomJS
  • Run your tests from the command line in multiple browsers (running locally or remotely) at the same time

Mocha is an open source tool with 19.3K GitHub stars and 2.65K GitHub forks. Here's a link to Mocha's open source repository on GitHub.

Decisions about Mocha and Venus.js

We use Mocha for our FDA verification testing. It's integrated into Meteor, our upstream web application framework. We like how battle tested it is, its' syntax, its' options of reporters, and countless other features. Most everybody can agree on mocha, and that gets us half-way through our FDA verification and validation (V&V) testing strategy.

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Pros of Mocha
Pros of Venus.js
  • 136
    Open source
  • 100
    Simple
  • 81
    Promise support
  • 48
    Flexible
  • 28
    Easy to add support for Generators
  • 12
    For browser and server testing
  • 7
    Curstom assertion libraries
  • 4
    Works with Karma
  • 3
    No other better tools
  • 1
    Simple integration testing
  • 1
    Default reporter is nice, clean, and itemized
  • 1
    Simple setup
  • 1
    Works with saucelabs
  • 1
    Lots of tutorials and help online
  • 1
    Works with BrowserStack
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    Cons of Mocha
    Cons of Venus.js
    • 3
      Cannot test a promisified functions without assertion
    • 1
      Not as many reporter options as Jest
    • 1
      No assertion count in results
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      - No public GitHub repository available -

      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 Venus.js?

      It is a testing tool for JavaScript (JS), which simplifies running unit tests. When you are developing a browser-based project in JS, you'll want to create unit tests and run them frequently. Typically, you'll write a unit test using some library, such as Mocha or Jasmine. These libraries let you define testcases (or "specs" if you are following a BDD style), and provide APIs for writing assertions.

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      What companies use Venus.js?
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        What tools integrate with Mocha?
        What tools integrate with Venus.js?

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        What are some alternatives to Mocha and Venus.js?
        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.
        Protractor
        Protractor is an end-to-end test framework for Angular and AngularJS applications. Protractor runs tests against your application running in a real browser, interacting with it as a user would.
        See all alternatives