Installer/behat/testScreenshot/tests/acceptance/1ScreenLogCest.php

<?php
use Codeception\Util\Locator;
class ScreenLogCest
{
	public function frontpageWorks(AcceptanceTester $I)
	{
#log in
$directorio = '01_login/';
		$I->amOnPage('/');
		$I->see('Nombre de usuario');
		$I->fillField('_username', 'admin');
		$I->fillField('_password', 'adminpass');

		shell_exec('mkdir -p /home/iksop/Escritorio/te/installer/behat/testScreenshot/tests/_output/debug/' . $directorio);
		$I->makeScreenshot($directorio.'1log');


		$I->click('_submit');
		$I->wait('3');


	}

}