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chai-eventemitter

1.1.1 • Public • Published

chai-eventemitter NPM Version Build Status

This is a plugin for chai to simplify the testing of EventEmitter.

EventEmitters can be testing using spies, but they are rather heavyweight for most usecases:

var spy = sinon.spy()
 
ee.on('test', spy)
ee.emit('test')
expect(spy).to.have.been.called()
 
spy.reset()
ee.emit('test', args)
expect(spy).to.have.been.calledWith(args)

chai-eventemitter replaces this with something much more digestable:

expect(function(){ ee.emit('test') }).to.emitFrom(ee, 'test')
expect(function(){ ee.emit('test', arg) }).to.emitFrom(ee, 'test', arg)

Setup

node.js / io.js

var chai = require('chai')
chai.use(require('chai-eventemitter'))

Browser

<script src="chai.js"></script>
<script src="chai-eventemitter.js"></script>

License

chai-eventemitter is released under the MIT License

Readme

Keywords

Package Sidebar

Install

npm i chai-eventemitter

Repository

github.com/fengb/chai-eventemitter

Homepage

github.com/fengb/chai-eventemitter

Weekly Downloads

11

Version

1.1.1

License

MIT

Last publish

Collaborators

  • fengb
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