<?php

class TimerTest extends \Codeception\Test\Unit
{
	function testStartStop()
	{
		$t1 = microtime(true);
		usleep(1000);
		$started = Rhymix\Framework\Timer::start();
		usleep(1000);
		$t2 = microtime(true);
		usleep(1000);
		$elapsed = Rhymix\Framework\Timer::stop();
		usleep(1000);
		$t3 = microtime(true);

		$this->assertGreaterThanOrEqual($t1, $started);
		$this->assertLessThanOrEqual($t2, $started);
		$this->assertGreaterThanOrEqual($t2 - $started, $elapsed);
		$this->assertLessThanOrEqual($t3 - $t1, $elapsed);
		$this->assertGreaterThan(0, $elapsed);
	}

	function testNestedTimers()
	{
		$t1 = Rhymix\Framework\Timer::start();
		usleep(1000);
		$t2 = Rhymix\Framework\Timer::start();
		usleep(1000);
		$t3 = Rhymix\Framework\Timer::stop();
		usleep(1000);
		$t4 = Rhymix\Framework\Timer::stop();

		$this->assertGreaterThanOrEqual($t1, $t2);
		$this->assertGreaterThan($t3, $t4);
	}

	function testMultipleTimers()
	{
		$t1 = Rhymix\Framework\Timer::start('timer1');
		usleep(10000);
		$t2 = Rhymix\Framework\Timer::start('timer2');
		$t3 = Rhymix\Framework\Timer::stop('timer1');
		$t4 = Rhymix\Framework\Timer::stop('timer2');

		$this->assertGreaterThanOrEqual($t1, $t2);
		$this->assertGreaterThanOrEqual($t4, $t3);
	}

	function testTimerFormat()
	{
		$t1 = Rhymix\Framework\Timer::start();
		usleep(10000);
		$t2 = Rhymix\Framework\Timer::stopFormat();

		$this->assertRegexp('/^[0-9\.,]+ms$/', $t2);
	}

	function testTimerSinceStartup()
	{
		$t1 = Rhymix\Framework\Timer::sinceStartup();
		$t2 = Rhymix\Framework\Timer::sinceStartup();

		$this->assertGreaterThanOrEqual($t1, $t2);

		$t3 = Rhymix\Framework\Timer::sinceStartupFormat();
		$this->assertRegexp('/^[0-9\.,]+ms$/', $t3);
	}
}