public function testShortBarColorRed()
 {
     $expected = "\r▓░░░░ 20.0% (2/10)";
     $bar = new CliProgressBar(10, 2);
     $bar->setBarLength(5);
     $bar->setColorToRed();
     $this->assertEquals($bar->draw(), $expected);
 }
<?php

require_once './../vendor/autoload.php';
use Dariuszp\CliProgressBar;
$bar = new CliProgressBar(48);
$bar->setBarLength(5);
$bar->display();
$bar->setColorToRed();
while ($bar->getCurrentstep() < $bar->getSteps()) {
    usleep(50000);
    $bar->progress();
    if ($bar->getCurrentstep() >= $bar->getSteps() / 2) {
        $bar->setColorToYellow();
    }
}
$bar->setColorToGreen();
$bar->display();
$bar->end();