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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 Jest?

Jest provides you with multiple layers on top of Jasmine.

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What are some alternatives to AVA and Jest?
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.
Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that. Boring web-based administration tasks can (and should!) also be automated as well.
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.
Enzyme is a JavaScript Testing utility for React that makes it easier to assert, manipulate, and traverse your React Components' output.
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.
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What tools integrate with AVA?
What tools integrate with Jest?
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Reviews of AVA and Jest
Avatar of cristiangiagante
.Net Developer at Hexacta
Review ofJestJest

I'm using Jest for 3 months in a Vue JS project . I need to use a lot of custom search of related topics in jest docs because it's not clear. The examples are very poor too.

How developers use AVA and Jest
Avatar of Volkan Özçelik
Volkan Özçelik uses JestJest

Jest is my unit-testing tool of choice.

Almost all unit testing suites (Mocha, Jasmine, etc.) are more or less the same.

The main advantage I guess, is that it integrates pretty well with React and Enzyme.

Avatar of Dave Woolfenden
Dave Woolfenden uses AVAAVA

IO heavy testing

How much does AVA cost?
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