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68 lines
1.7 KiB
CoffeeScript
68 lines
1.7 KiB
CoffeeScript
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define ['utils/EventEmitter'], (EventEmitter) ->
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describe 'EventEmitter', () ->
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beforeEach () ->
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@eventEmitter = new EventEmitter
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it 'calls listeners', () ->
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cb1 = sinon.stub()
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cb2 = sinon.stub()
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@eventEmitter.on 'foo', cb1
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@eventEmitter.on 'bar', cb2
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@eventEmitter.trigger 'foo'
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expect(cb1).to.have.been.called
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expect(cb2).to.not.have.been.called
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it 'calls multiple listeners', () ->
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cb1 = sinon.stub()
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cb2 = sinon.stub()
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@eventEmitter.on 'foo', cb1
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@eventEmitter.on 'foo', cb2
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@eventEmitter.trigger 'foo'
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expect(cb1).to.have.been.called
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expect(cb2).to.have.been.called
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it 'calls listeners with namespace', () ->
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cb1 = sinon.stub()
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cb2 = sinon.stub()
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@eventEmitter.on 'foo', cb1
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@eventEmitter.on 'foo.bar', cb2
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@eventEmitter.trigger 'foo'
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expect(cb1).to.have.been.called
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expect(cb2).to.have.been.called
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it 'removes listeners', () ->
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cb = sinon.stub()
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@eventEmitter.on 'foo', cb
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@eventEmitter.off 'foo'
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@eventEmitter.trigger 'foo'
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expect(cb).to.not.have.been.called
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it 'removes namespaced listeners', () ->
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cb = sinon.stub()
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@eventEmitter.on 'foo.bar', cb
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@eventEmitter.off 'foo.bar'
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@eventEmitter.trigger 'foo'
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expect(cb).to.not.have.been.called
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it 'does not remove unnamespaced listeners if off called with namespace', () ->
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cb1 = sinon.stub()
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cb2 = sinon.stub()
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@eventEmitter.on 'foo', cb1
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@eventEmitter.on 'foo.bar', cb2
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@eventEmitter.off 'foo.bar'
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@eventEmitter.trigger 'foo'
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expect(cb1).to.have.been.called
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expect(cb2).to.not.have.been.called
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