mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.5 KiB
59 lines
1.5 KiB
'use strict';
|
|
require('../common');
|
|
const assert = require('assert');
|
|
const events = require('events');
|
|
|
|
var callbacks_called = [];
|
|
|
|
const e = new events.EventEmitter();
|
|
|
|
function callback1() {
|
|
callbacks_called.push('callback1');
|
|
e.on('foo', callback2);
|
|
e.on('foo', callback3);
|
|
e.removeListener('foo', callback1);
|
|
}
|
|
|
|
function callback2() {
|
|
callbacks_called.push('callback2');
|
|
e.removeListener('foo', callback2);
|
|
}
|
|
|
|
function callback3() {
|
|
callbacks_called.push('callback3');
|
|
e.removeListener('foo', callback3);
|
|
}
|
|
|
|
e.on('foo', callback1);
|
|
assert.equal(1, e.listeners('foo').length);
|
|
|
|
e.emit('foo');
|
|
assert.equal(2, e.listeners('foo').length);
|
|
assert.deepStrictEqual(['callback1'], callbacks_called);
|
|
|
|
e.emit('foo');
|
|
assert.equal(0, e.listeners('foo').length);
|
|
assert.deepStrictEqual(['callback1', 'callback2', 'callback3'],
|
|
callbacks_called);
|
|
|
|
e.emit('foo');
|
|
assert.equal(0, e.listeners('foo').length);
|
|
assert.deepStrictEqual(['callback1', 'callback2', 'callback3'],
|
|
callbacks_called);
|
|
|
|
e.on('foo', callback1);
|
|
e.on('foo', callback2);
|
|
assert.equal(2, e.listeners('foo').length);
|
|
e.removeAllListeners('foo');
|
|
assert.equal(0, e.listeners('foo').length);
|
|
|
|
// Verify that removing callbacks while in emit allows emits to propagate to
|
|
// all listeners
|
|
callbacks_called = [];
|
|
|
|
e.on('foo', callback2);
|
|
e.on('foo', callback3);
|
|
assert.equal(2, e.listeners('foo').length);
|
|
e.emit('foo');
|
|
assert.deepStrictEqual(['callback2', 'callback3'], callbacks_called);
|
|
assert.equal(0, e.listeners('foo').length);
|
|
|