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'use strict';
const common = require('../common');
var assert = require('assert');
var EventEmitter = require('events').EventEmitter;
var e = new EventEmitter();
var fl; // foo listeners
fl = e.listeners('foo');
assert(Array.isArray(fl));
assert(fl.length === 0);
assert(!(e._events instanceof Object));
assert.deepStrictEqual(Object.keys(e._events), []);
e.on('foo', common.fail);
fl = e.listeners('foo');
assert(e._events.foo === common.fail);
assert(Array.isArray(fl));
assert(fl.length === 1);
assert(fl[0] === common.fail);
e.listeners('bar');
e.on('foo', assert.ok);
fl = e.listeners('foo');
assert(Array.isArray(e._events.foo));
assert(e._events.foo.length === 2);
assert(e._events.foo[0] === common.fail);
assert(e._events.foo[1] === assert.ok);
assert(Array.isArray(fl));
assert(fl.length === 2);
assert(fl[0] === common.fail);
assert(fl[1] === assert.ok);
console.log('ok');