Gathering detailed insights and metrics for @crabas0npm/accusantium-adipisci-consequuntur
Gathering detailed insights and metrics for @crabas0npm/accusantium-adipisci-consequuntur
Gathering detailed insights and metrics for @crabas0npm/accusantium-adipisci-consequuntur
Gathering detailed insights and metrics for @crabas0npm/accusantium-adipisci-consequuntur
npm install @crabas0npm/accusantium-adipisci-consequuntur
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33
Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework.
For more information or to download plugins, view the documentation.
Chai is an assertion library, similar to Node's built-in assert
. It makes testing much easier by giving you lots of assertions you can run against your code.
chai
is available on npm. To install it, type:
$ npm install --save-dev chai
You can also use it within the browser; install via npm and use the chai.js
file found within the download. For example:
1<script src="./node_modules/chai/chai.js"></script>
Import the library in your code, and then pick one of the styles you'd like to use - either assert
, expect
or should
:
1import { assert } from 'chai'; // Using Assert style 2import { expect } from 'chai'; // Using Expect style 3import { should } from 'chai'; // Using Should style
1import 'chai/register-assert'; // Using Assert style 2import 'chai/register-expect'; // Using Expect style 3import 'chai/register-should'; // Using Should style
1import { assert } from 'chai'; // Using Assert style 2import { expect } from 'chai'; // Using Expect style 3import { should } from 'chai'; // Using Should style 4should(); // Modifies `Object.prototype` 5 6import { expect, use } from 'chai'; // Creates local variables `expect` and `use`; useful for plugin use
1mocha spec.js --require chai/register-assert.js # Using Assert style 2mocha spec.js --require chai/register-expect.js # Using Expect style 3mocha spec.js --require chai/register-should.js # Using Should style
Read more about these styles in our docs.
Chai offers a robust Plugin architecture for extending Chai's assertions and interfaces.
chai-plugin
browser
if your plugin works in the browser as well as Node.jsbrowser-only
if your plugin does not work with Node.jsError
constructor thrown upon an assertion failing.Thank you very much for considering to contribute!
Please make sure you follow our Code Of Conduct and we also strongly recommend reading our Contributing Guide.
Here are a few issues other contributors frequently ran into when opening pull requests:
chai.js
build. We do it once per release.Please see the full Contributors Graph for our list of contributors.
Feel free to reach out to any of the core contributors with your questions or concerns. We will do our best to respond in a timely manner.
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