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AVA

110
204
+ 1
32
Chai

3.8K
195
+ 1
0
Jest

9.3K
3.8K
+ 1
175
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Pros of AVA
Pros of Chai
Pros of Jest
  • 12
    Simple and fast
  • 6
    Parallel test running
  • 5
    Open source
  • 3
    Promise support
  • 3
    Test code Instrumenting
  • 2
    Babel integration
  • 1
    ESM Ready
    Be the first to leave a pro
    • 36
      Open source
    • 32
      Mock by default makes testing much simpler
    • 23
      Testing React Native Apps
    • 20
      Parallel test running
    • 16
      Fast
    • 13
      Bundled with JSDOM to enable DOM testing
    • 8
      Mock by default screws up your classes, breaking tests
    • 7
      Out of the box code coverage
    • 7
      Promise support
    • 6
      One stop shop for unit testing
    • 3
      Great documentation
    • 2
      Assert Library Included
    • 1
      Built in watch option with interactive filtering menu
    • 1
      Preset support
    • 0
      Can be used for BDD
    • 0
      Karma

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    Cons of AVA
    Cons of Chai
    Cons of Jest
    • 1
      No built-in support for DOM
    • 1
      No source files compilation
      Be the first to leave a con
      • 4
        Documentation
      • 4
        Ambiguous configuration
      • 3
        Difficult
      • 2
        Many bugs still not fixed months/years after reporting
      • 2
        Multiple error messages for same error
      • 2
        Difficult to run single test/describe/file
      • 2
        Ambiguous
      • 2
        Bugged
      • 1
        BeforeAll timing out makes all passing tests fail
      • 1
        Slow
      • 1
        Reporter is too general
      • 1
        Unstable
      • 1
        Bad docs
      • 1
        Still does't support .mjs files natively
      • 1
        Can't fail beforeAll to abort tests
      • 0
        Interaction with watch mode on terminal

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      - No public GitHub repository available -
      - No public GitHub repository available -

      What is AVA?

      Even though JavaScript is single-threaded, IO in Node.js can happen in parallel due to its async nature. AVA takes advantage of this and runs your tests concurrently, which is especially beneficial for IO heavy tests. In addition, test files are run in parallel as separate processes, giving you even better performance and an isolated environment for each test file.

      What is 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.

      What is Jest?

      Jest provides you with multiple layers on top of Jasmine.

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      What companies use AVA?
      What companies use Chai?
      What companies use Jest?

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      What tools integrate with AVA?
      What tools integrate with Chai?
      What tools integrate with Jest?
        No integrations found

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        Blog Posts

        What are some alternatives to AVA, Chai, and Jest?
        EVA
        Equipping you with hundreds of symbols and dozens or styles configurations, it makes sure the design stays consistent across all of your applications and platforms.
        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.
        JavaScript
        JavaScript is most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic,and supports object-oriented, imperative, and functional programming styles.
        Git
        Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency.
        GitHub
        GitHub is the best place to share code with friends, co-workers, classmates, and complete strangers. Over three million people use GitHub to build amazing things together.
        See all alternatives