Souke/tests/_bootstrap.php

<?php
define('YII_ENV', 'test');
defined('YII_DEBUG') or define('YII_DEBUG', true);
require_once __DIR__ . '/../vendor/yiisoft/yii2/Yii.php';
require __DIR__ .'/../vendor/autoload.php';

// @see common/config/bootstrap.php
$dirname = dirname(__DIR__);
Yii::setAlias('common', $dirname.'/common');
Yii::setAlias('frontend', $dirname . '/frontend');
Yii::setAlias('backend', $dirname . '/backend');
Yii::setAlias('console', $dirname . '/console');
Yii::setAlias('producer', $dirname . '/producer');

$serverName = isset($_SERVER['SERVER_NAME']) ?? '' ;
$domainName = '' ;
if($serverName == 'localhost') {
    $domainName = 'localhost' ;
}
else {
    $domainName = (YII_ENV === 'dev') ? 'opendistrib-beta.net' : 'opendistrib.net' ;
}

Yii::setAlias('@domainName', $domainName);
Yii::setAlias('@baseUrl', ($serverName == 'localhost') ? '/Opendistrib/' : '/');
Yii::setAlias('@baseUrlFrontend', (($serverName == 'localhost') ? '/frontend/web' : ''));
Yii::setAlias('@baseUrlBackend', (($serverName == 'localhost') ? '/backend/web' : ''));
Yii::setAlias('@baseUrlProducer', (($serverName == 'localhost') ? '/producer/web' : ''));
Yii::setAlias('@frontendSubdomain', (($serverName == 'localhost') ? '' : 'www'));
Yii::setAlias('@backendSubdomain', (($serverName == 'localhost') ? '' : 'admin'));
Yii::setAlias('@producerSubdomain', (($serverName == 'localhost') ? '' : 'producteurs'));

/*
 * Autoload
 */
Yii::$classMap['Import'] = Yii::getAlias('@common/exts/Import.php');
Import::using('common\components\*');