Make PHPUnit beep at you any time a test fails

BeepExtension.php

<?php declare(strict_types=1);

namespace Vendor;

use PHPUnit\Runner\AfterTestErrorHook;

final class BeepExtension implements AfterTestErrorHook
{
    public function executeAfterTestError(string $test, string $message, float $time): void
    {
        echo "\x07"; // emit BEL
    }
}