Enzymeย vsย Jestย vsย Mocha

Need advice about which tool to choose?Ask the StackShare community!

Enzyme

444
307
+ 1
0
Jest

3.2K
2.2K
+ 1
158
Mocha

3.4K
2.5K
+ 1
417
Decisions about Enzyme, Jest, and Mocha
Shared insights
on
JestJestCypressCypress

As we all know testing is an important part of any application. To assist with our testing we are going to use both Cypress and Jest. We feel these tools complement each other and will help us get good coverage of our code. We will use Cypress for our end to end testing as we've found it quite user friendly. Jest will be used for our unit tests because we've seen how many larger companies use it with great success.

See more

Postman will be used to do integration testing with the backend API we create. It offers a clean interface to create many requests, and you can even organize these requests into collections. It helps to test the backend API first to make sure it's working before using it in the front-end. Jest can also be used for testing and is already embedded into React. Not only does it offer unit testing support in javascript, it can also do snapshot testing for the front-end to make sure components are rendering correctly. Enzyme is complementary to Jest and offers more functions such as shallow rendering. UnitTest will be used for Python testing as it is simple, has a lot of functionality and already built in with python. Sentry will be used for keeping track of errors as it is also easily integratable with Heroku because they offer it as an add-on. LogDNA will be used for tracking logs which are not errors and is also a Heroku add-on. Its good to have a separate service to record logs, monitor, track and even fix errors in real-time so our application can run more smoothly.

See more

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.

See more
Pros of Enzyme
Pros of Jest
Pros of Mocha
    Be the first to leave a pro
    • 33
      Open source
    • 29
      Mock by default makes testing much simpler
    • 21
      Testing React Native Apps
    • 18
      Parallel test running
    • 14
      Fast
    • 12
      Bundled with JSDOM to enable DOM testing
    • 7
      Mock by default screws up your classes, breaking tests
    • 7
      Out of the box code coverage
    • 6
      Promise support
    • 6
      One stop shop for unit testing
    • 3
      Great documentation
    • 1
      Assert Library Included
    • 1
      Built in watch option with interactive filtering menu
    • 0
      Can be used for BDD
    • 134
      Open source
    • 100
      Simple
    • 81
      Promise support
    • 47
      Flexible
    • 28
      Easy to add support for Generators
    • 11
      For browser and server testing
    • 6
      Curstom assertion libraries
    • 3
      No other better tools
    • 2
      Works with Karma
    • 1
      Works with BrowserStack
    • 1
      Simple integration testing
    • 1
      Simple setup
    • 1
      Works with saucelabs
    • 1
      Lots of tutorials and help online

    Sign up to add or upvote prosMake informed product decisions

    Cons of Enzyme
    Cons of Jest
    Cons of Mocha
      Be the first to leave a con
      • 2
        Many bugs still not fixed months/years after reporting
      • 2
        Multiple error messages for same error
      • 1
        Bugged
      • 1
        Unstable
      • 1
        Bad docs
      • 1
        Ambiguous
      • 1
        Difficult
      • 1
        Still does't support .mjs files natively
      • 1
        Can't fail beforeAll to abort tests
      • 1
        Difficult to run single test/describe/file
      • 1
        Documentation
      • 1
        Ambiguous configuration
      • 0
        Interaction with watch mode on terminal
      • 0
        BeforeAll timing out makes all passing tests fail
      • 3
        Cannot test a promisified functions without assertion
      • 1
        No assertion count in results

      Sign up to add or upvote consMake informed product decisions

      What is Enzyme?

      Enzyme is a JavaScript Testing utility for React that makes it easier to assert, manipulate, and traverse your React Components' output.

      What is Jest?

      Jest provides you with multiple layers on top of Jasmine.

      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.

      Need advice about which tool to choose?Ask the StackShare community!

      What companies use Enzyme?
      What companies use Jest?
      What companies use Mocha?

      Sign up to get full access to all the companiesMake informed product decisions

      What tools integrate with Enzyme?
      What tools integrate with Jest?
      What tools integrate with Mocha?

      Sign up to get full access to all the tool integrationsMake informed product decisions

      Blog Posts

      JavaScriptGitHubNode.js+29
      14
      10615
      JavaScriptGitHubGit+33
      20
      1554
      What are some alternatives to Enzyme, Jest, and Mocha?
      react-testing-library
      It is a simple and complete React DOM testing utility that encourage good testing practices. It provides light utility functions on top of react-dom and react-dom/test-utils, in a way that encourages better testing practices.
      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.
      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.
      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.
      SinonJS
      It is a really helpful library when you want to unit test your code. It supports spies, stubs, and mocks. The library has cross browser support and also can run on the server using Node.js.
      See all alternatives
      Interest over time
      News about Enzyme
      More news