Yii 2 Codeception API Test

My API uses the Yii2 advanced template. It uses symfony/dotenv to read the .env. The .env is loaded in all the configurations.

$dotenv = new Symfony\Component\Dotenv\Dotenv;
$dotenv->load(__DIR__ . '/../../.env');

While running the Codeception api test, I came across this error.

[PHPUnit\Framework\Exception] Undefined index: HOST at ../common/config/main-local.php:7

After much digging around, I’ve realized that I need to load Symfony\Component\Dotenv\Dotenv in common/config/codeception-local.php Thus, I have updated that file in the environment folder, and reran php init.

<?php
# environments/dev/common/config/codeception-local.php

# Add these 2 lines below
$dotenv = new Symfony\Component\Dotenv\Dotenv;
$dotenv->load(__DIR__ . '/../../.env.example');

return yii\helpers\ArrayHelper::merge(
    require __DIR__ . '/main.php',
    require __DIR__ . '/main-local.php',
    require __DIR__ . '/test.php',
    require __DIR__ . '/test-local.php',
    [
        'components' => [
        ],
    ]
);