bench.php
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	<?php

	use Sabre\Event\EventEmitter;

	include __DIR__ . '/../../vendor/autoload.php';

	abstract class BenchMark {

	protected $startTime;
	protected $iterations = 10000;
	protected $totalTime;

	function setUp() {

	}

	abstract function test();

	function go() {

	$this->setUp();
	$this->startTime = microtime(true);
	$this->test();
	$this->totalTime = microtime(true) - $this->startTime;
	return $this->totalTime;

	}

	}

	class OneCallBack extends BenchMark {

	protected $emitter;
	protected $iterations = 100000;

	function setUp() {

	$this->emitter = new EventEmitter();
	$this->emitter->on('foo', function() {
	// NOOP
	});

	}

	function test() {

	for ($i = 0;$i < $this->iterations;$i++) {
	$this->emitter->emit('foo', []);
	}

	}

	}

	class ManyCallBacks extends BenchMark {

	protected $emitter;

	function setUp() {

	$this->emitter = new EventEmitter();
	for ($i = 0;$i < 100;$i++) {
	$this->emitter->on('foo', function() {
	// NOOP
	});
	}

	}

	function test() {

	for ($i = 0;$i < $this->iterations;$i++) {
	$this->emitter->emit('foo', []);
	}

	}

	}

	class ManyPrioritizedCallBacks extends BenchMark {

	protected $emitter;

	function setUp() {

	$this->emitter = new EventEmitter();
	for ($i = 0;$i < 100;$i++) {
	$this->emitter->on('foo', function() {
	}, 1000 - $i);
	}

	}

	function test() {

	for ($i = 0;$i < $this->iterations;$i++) {
	$this->emitter->emit('foo', []);
	}

	}

	}

	$tests = [
	'OneCallBack',
	'ManyCallBacks',
	'ManyPrioritizedCallBacks',
	];

	foreach ($tests as $test) {

	$testObj = new $test();
	$result = $testObj->go();
	echo $test . " " . $result . "\n";

	}

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