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nodejs/test/parallel/test-event-emitter-subclass.js
isaacs 3e1b1dd4a9 Remove excessive copyright/license boilerplate
The copyright and license notice is already in the LICENSE file.  There
is no justifiable reason to also require that it be included in every
file, since the individual files are not individually distributed except
as part of the entire package.
2015-01-12 15:30:28 -08:00

49 lines
871 B
JavaScript

var common = require('../common');
var assert = require('assert');
var EventEmitter = require('events').EventEmitter;
var util = require('util');
util.inherits(MyEE, EventEmitter);
function MyEE(cb) {
this.once(1, cb);
this.emit(1);
this.removeAllListeners();
EventEmitter.call(this);
}
var called = false;
var myee = new MyEE(function() {
called = true;
});
util.inherits(ErrorEE, EventEmitter);
function ErrorEE() {
this.emit('error', new Error('blerg'));
}
assert.throws(function() {
new ErrorEE();
}, /blerg/);
process.on('exit', function() {
assert(called);
assert.deepEqual(myee._events, {});
console.log('ok');
});
function MyEE2() {
EventEmitter.call(this);
}
MyEE2.prototype = new EventEmitter();
var ee1 = new MyEE2();
var ee2 = new MyEE2();
ee1.on('x', function () {});
assert.equal(EventEmitter.listenerCount(ee2, 'x'), 0);