mirror of
https://github.com/overleaf/overleaf.git
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91 lines
2.4 KiB
JavaScript
91 lines
2.4 KiB
JavaScript
/* eslint-disable
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max-len,
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no-return-assign,
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no-undef,
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*/
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// TODO: This file was created by bulk-decaffeinate.
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// Fix any style issues and re-enable lint.
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/*
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* decaffeinate suggestions:
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* DS102: Remove unnecessary code created because of implicit returns
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* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
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*/
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import { expect } from 'chai'
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import sinon from 'sinon'
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import EventEmitter from '../../../frontend/js/utils/EventEmitter'
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export default describe('EventEmitter', function () {
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beforeEach(function () {
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return (this.eventEmitter = new EventEmitter())
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})
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it('calls listeners', function () {
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const cb1 = sinon.stub()
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const cb2 = sinon.stub()
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this.eventEmitter.on('foo', cb1)
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this.eventEmitter.on('bar', cb2)
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this.eventEmitter.trigger('foo')
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expect(cb1).to.have.been.called
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return expect(cb2).to.not.have.been.called
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})
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it('calls multiple listeners', function () {
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const cb1 = sinon.stub()
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const cb2 = sinon.stub()
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this.eventEmitter.on('foo', cb1)
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this.eventEmitter.on('foo', cb2)
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this.eventEmitter.trigger('foo')
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expect(cb1).to.have.been.called
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return expect(cb2).to.have.been.called
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})
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it('calls listeners with namespace', function () {
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const cb1 = sinon.stub()
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const cb2 = sinon.stub()
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this.eventEmitter.on('foo', cb1)
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this.eventEmitter.on('foo.bar', cb2)
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this.eventEmitter.trigger('foo')
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expect(cb1).to.have.been.called
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return expect(cb2).to.have.been.called
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})
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it('removes listeners', function () {
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const cb = sinon.stub()
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this.eventEmitter.on('foo', cb)
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this.eventEmitter.off('foo')
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this.eventEmitter.trigger('foo')
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return expect(cb).to.not.have.been.called
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})
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it('removes namespaced listeners', function () {
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const cb = sinon.stub()
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this.eventEmitter.on('foo.bar', cb)
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this.eventEmitter.off('foo.bar')
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this.eventEmitter.trigger('foo')
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return expect(cb).to.not.have.been.called
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})
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it('does not remove unnamespaced listeners if off called with namespace', function () {
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const cb1 = sinon.stub()
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const cb2 = sinon.stub()
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this.eventEmitter.on('foo', cb1)
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this.eventEmitter.on('foo.bar', cb2)
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this.eventEmitter.off('foo.bar')
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this.eventEmitter.trigger('foo')
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expect(cb1).to.have.been.called
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return expect(cb2).to.not.have.been.called
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})
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})
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