90 строки
2.3 KiB
JavaScript
90 строки
2.3 KiB
JavaScript
var common = require('../common');
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var assert = require('assert');
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var events = require('events');
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var count = 0;
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function listener1() {
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console.log('listener1');
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count++;
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}
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function listener2() {
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console.log('listener2');
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count++;
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}
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function listener3() {
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console.log('listener3');
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count++;
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}
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function remove1() {
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assert(0);
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}
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function remove2() {
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assert(0);
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}
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var e1 = new events.EventEmitter();
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e1.on('hello', listener1);
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e1.on('removeListener', common.mustCall(function(name, cb) {
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assert.equal(name, 'hello');
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assert.equal(cb, listener1);
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}));
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e1.removeListener('hello', listener1);
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assert.deepEqual([], e1.listeners('hello'));
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var e2 = new events.EventEmitter();
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e2.on('hello', listener1);
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e2.on('removeListener', assert.fail);
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e2.removeListener('hello', listener2);
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assert.deepEqual([listener1], e2.listeners('hello'));
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var e3 = new events.EventEmitter();
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e3.on('hello', listener1);
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e3.on('hello', listener2);
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e3.once('removeListener', common.mustCall(function(name, cb) {
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assert.equal(name, 'hello');
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assert.equal(cb, listener1);
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assert.deepEqual([listener2], e3.listeners('hello'));
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}));
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e3.removeListener('hello', listener1);
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assert.deepEqual([listener2], e3.listeners('hello'));
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e3.once('removeListener', common.mustCall(function(name, cb) {
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assert.equal(name, 'hello');
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assert.equal(cb, listener2);
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assert.deepEqual([], e3.listeners('hello'));
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}));
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e3.removeListener('hello', listener2);
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assert.deepEqual([], e3.listeners('hello'));
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var e4 = new events.EventEmitter();
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e4.on('removeListener', common.mustCall(function(name, cb) {
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if (cb !== remove1) return;
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this.removeListener('quux', remove2);
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this.emit('quux');
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}, 2));
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e4.on('quux', remove1);
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e4.on('quux', remove2);
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e4.removeListener('quux', remove1);
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var e5 = new events.EventEmitter();
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e5.on('hello', listener1);
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e5.on('hello', listener2);
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e5.once('removeListener', common.mustCall(function(name, cb) {
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assert.equal(name, 'hello');
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assert.equal(cb, listener1);
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assert.deepEqual([listener2], e5.listeners('hello'));
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e5.once('removeListener', common.mustCall(function(name, cb) {
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assert.equal(name, 'hello');
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assert.equal(cb, listener2);
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assert.deepEqual([], e5.listeners('hello'));
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}));
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e5.removeListener('hello', listener2);
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assert.deepEqual([], e5.listeners('hello'));
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}));
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e5.removeListener('hello', listener1);
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assert.deepEqual([], e5.listeners('hello'));
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