Framework/src/Testing/CodeceptionRunner.php

<?php
declare(strict_types=1);

namespace Phred\Testing;

use Phred\Testing\Contracts\TestRunnerInterface;

final class CodeceptionRunner implements TestRunnerInterface
{
    public function run(?string $suite = null): int
    {
        $command = 'vendor/bin/codecept run';
        if ($suite) {
            $command .= ' ' . escapeshellarg($suite);
        }

        passthru($command, $exitCode);
        return $exitCode;
    }
}