49 lines
1.0 KiB
JavaScript
49 lines
1.0 KiB
JavaScript
'use strict';
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var
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stream,
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Stream = require('../lib/utils/stream'),
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QUnit = require('qunit');
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QUnit.module('Stream', {
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beforeEach: function() {
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stream = new Stream();
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stream.init();
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}
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});
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QUnit.test('trigger calls listeners', function(assert) {
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var args = [];
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stream.on('test', function(data) {
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args.push(data);
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});
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stream.trigger('test', 1);
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stream.trigger('test', 2);
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assert.deepEqual(args, [1, 2]);
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});
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QUnit.test('callbacks can remove themselves', function(assert) {
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var args1 = [], args2 = [], args3 = [];
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stream.on('test', function(event) {
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args1.push(event);
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});
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stream.on('test', function t(event) {
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args2.push(event);
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stream.off('test', t);
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});
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stream.on('test', function(event) {
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args3.push(event);
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});
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stream.trigger('test', 1);
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stream.trigger('test', 2);
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assert.deepEqual(args1, [1, 2], 'first callback ran all times');
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assert.deepEqual(args2, [1], 'second callback removed after first run');
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assert.deepEqual(args3, [1, 2], 'third callback ran all times');
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});
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