<?php declare(strict_types=1); namespace NunoMaduro\Collision\Adapters\Phpunit; /** * @internal */ final class Timer { /** * @var float */ private $start; /** * Timer constructor. */ private function __construct(float $start) { $this->start = $start; } /** * Starts the timer. */ public static function start(): Timer { return new self(microtime(true)); } /** * Returns the elapsed time in microseconds. */ public function result(): float { return microtime(true) - $this->start; } }