'use strict';

const common = require('../common.js');

const { EventEmitter } = require('events');

const bench = common.createBenchmark(main, {

newListener: [0, 1],

removeListener: [0, 1],

n: [1e6],

});

function main({ newListener, removeListener, n }) {

const ee = new EventEmitter();

const listeners = [];

for (let k = 0; k < 10; k += 1)

listeners.push(() => {});

if (newListener === 1)

ee.on('newListener', (event, listener) => {});

if (removeListener === 1)

ee.on('removeListener', (event, listener) => {});

bench.start();

for (let i = 0; i < n; i += 1) {

const dummy = (i % 2 === 0) ? 'dummy0' : 'dummy1';

for (let k = listeners.length; --k >= 0; /* empty */) {

ee.on(dummy, listeners[k]);

}

for (let k = listeners.length; --k >= 0; /* empty */) {

ee.removeListener(dummy, listeners[k]);

}

}

bench.end(n);

}