| 'use strict'; |
| |
| require('../common'); |
| const EventEmitter = require('events'); |
| const assert = require('assert'); |
| |
| const EE = new EventEmitter(); |
| const m = () => {}; |
| EE.on('foo', () => {}); |
| assert.deepStrictEqual(['foo'], EE.eventNames()); |
| EE.on('bar', m); |
| assert.deepStrictEqual(['foo', 'bar'], EE.eventNames()); |
| EE.removeListener('bar', m); |
| assert.deepStrictEqual(['foo'], EE.eventNames()); |
| const s = Symbol('s'); |
| EE.on(s, m); |
| assert.deepStrictEqual(['foo', s], EE.eventNames()); |
| EE.removeListener(s, m); |
| assert.deepStrictEqual(['foo'], EE.eventNames()); |