new_que/tests/codeception/config/backend/acceptance.php

<?php

defined('YII_APP_BASE_PATH') or define('YII_APP_BASE_PATH', dirname(dirname(dirname(dirname(__DIR__)))));

/*
 * Application configuration for backend acceptance tests
 */
return yii\helpers\ArrayHelper::merge(
    require(YII_APP_BASE_PATH.'/common/config/main.php'),
    require(YII_APP_BASE_PATH.'/common/config/main-local.php'),
    require(YII_APP_BASE_PATH.'/backend/config/main.php'),
    require(YII_APP_BASE_PATH.'/backend/config/main-local.php'),
    require(dirname(__DIR__).'/config.php'),
    require(dirname(__DIR__).'/config-local.php'),
    require(dirname(__DIR__).'/acceptance.php'),
    require(__DIR__.'/config.php'),
    [
    ]
);