node/test/parallel/test-event-emitter-special-event-names.js
Brian White e38bade828
events: don't inherit from Object.prototype
This commit safely allows event names that are named the same as
properties that are ordinarily inherited from Object.prototype such
as __proto__.

Fixes: https://github.com/nodejs/node/issues/728
PR-URL: https://github.com/nodejs/node/pull/6092
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
2016-04-18 21:45:26 -04:00

37 lines
914 B
JavaScript

'use strict';
const common = require('../common');
const EventEmitter = require('events');
const assert = require('assert');
const ee = new EventEmitter();
const handler = () => {};
assert.strictEqual(ee._events.hasOwnProperty, undefined);
assert.strictEqual(ee._events.toString, undefined);
ee.on('__proto__', handler);
ee.on('__defineGetter__', handler);
ee.on('toString', handler);
assert.deepStrictEqual(ee.eventNames(), [
'__proto__',
'__defineGetter__',
'toString'
]);
assert.deepStrictEqual(ee.listeners('__proto__'), [handler]);
assert.deepStrictEqual(ee.listeners('__defineGetter__'), [handler]);
assert.deepStrictEqual(ee.listeners('toString'), [handler]);
ee.on('__proto__', common.mustCall(function(val) {
assert.strictEqual(val, 1);
}));
ee.emit('__proto__', 1);
process.on('__proto__', common.mustCall(function(val) {
assert.strictEqual(val, 1);
}));
process.emit('__proto__', 1);