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76 lines
2.5 KiB
76 lines
2.5 KiB
// Copyright Joyent, Inc. and other Node contributors. |
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// |
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// Permission is hereby granted, free of charge, to any person obtaining a |
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// copy of this software and associated documentation files (the |
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// "Software"), to deal in the Software without restriction, including |
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// without limitation the rights to use, copy, modify, merge, publish, |
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// distribute, sublicense, and/or sell copies of the Software, and to permit |
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// persons to whom the Software is furnished to do so, subject to the |
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// following conditions: |
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// |
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// The above copyright notice and this permission notice shall be included |
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// in all copies or substantial portions of the Software. |
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// |
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN |
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
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// USE OR OTHER DEALINGS IN THE SOFTWARE. |
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var assert = require('assert'); |
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var events = require('../'); |
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var callbacks_called = []; |
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var e = new events.EventEmitter(); |
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function callback1() { |
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callbacks_called.push('callback1'); |
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e.on('foo', callback2); |
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e.on('foo', callback3); |
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e.removeListener('foo', callback1); |
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} |
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function callback2() { |
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callbacks_called.push('callback2'); |
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e.removeListener('foo', callback2); |
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} |
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function callback3() { |
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callbacks_called.push('callback3'); |
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e.removeListener('foo', callback3); |
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} |
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e.on('foo', callback1); |
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assert.equal(1, e.listeners('foo').length); |
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e.emit('foo'); |
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assert.equal(2, e.listeners('foo').length); |
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assert.deepEqual(['callback1'], callbacks_called); |
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e.emit('foo'); |
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assert.equal(0, e.listeners('foo').length); |
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assert.deepEqual(['callback1', 'callback2', 'callback3'], callbacks_called); |
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e.emit('foo'); |
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assert.equal(0, e.listeners('foo').length); |
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assert.deepEqual(['callback1', 'callback2', 'callback3'], callbacks_called); |
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e.on('foo', callback1); |
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e.on('foo', callback2); |
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assert.equal(2, e.listeners('foo').length); |
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e.removeAllListeners('foo'); |
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assert.equal(0, e.listeners('foo').length); |
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// Verify that removing callbacks while in emit allows emits to propagate to |
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// all listeners |
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callbacks_called = []; |
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e.on('foo', callback2); |
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e.on('foo', callback3); |
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assert.equal(2, e.listeners('foo').length); |
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e.emit('foo'); |
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assert.deepEqual(['callback2', 'callback3'], callbacks_called); |
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assert.equal(0, e.listeners('foo').length);
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