`php artisan test` still loads .env not .env.testing

These are my configs:

phpunit.xml:

<?xml version="1.0" encoding="UTF-8"?>
<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="./vendor/phpunit/phpunit/phpunit.xsd"
         bootstrap="vendor/autoload.php"
         colors="true"
>
    <testsuites>
        <testsuite name="Unit">
            <directory suffix="Test.php">./tests/Unit</directory>
        </testsuite>
        <testsuite name="Feature">
            <directory suffix="Test.php">./tests/Feature</directory>
        </testsuite>
    </testsuites>
    <coverage processUncoveredFiles="true">
        <include>
            <directory suffix=".php">./app</directory>
        </include>
    </coverage>
    <php>
        <server name="APP_ENV" value="testing"/>
        <server name="BCRYPT_ROUNDS" value="4"/>
        <server name="CACHE_DRIVER" value="array"/>
        <!-- <server name="DB_CONNECTION" value="sqlite"/> -->
        <!-- <server name="DB_DATABASE" value=":memory:"/> -->
        <server name="MAIL_MAILER" value="array"/>
        <server name="QUEUE_CONNECTION" value="sync"/>
        <server name="SESSION_DRIVER" value="array"/>
        <server name="TELESCOPE_ENABLED" value="false"/>
    </php>
</phpunit>

.env.testing

APP_NAME=metrina
APP_ENV=testing
APP_KEY=base64:***************************
APP_DEBUG=true
APP_URL=http://localhost:81
# ...
DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3307
DB_DATABASE=testing
DB_USERNAME=root
DB_PASSWORD=
DB_ENGINE=InnoDB
# ...

and .env:

APP_NAME=metrina
APP_ENV=local
APP_KEY=base64:***************************
APP_DEBUG=true
APP_URL=http://localhost:81

#...

DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3307
DB_DATABASE=actual
DB_USERNAME=root
DB_PASSWORD=
DB_ENGINE=InnoDB

#...

And this is my feature test:

<?php

namespace Tests\Feature;

use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class TradeTest extends TestCase
{
    use RefreshDatabase;

    /**
     * A basic feature test example.
     *
     * @return void
     */
    public function test_example()
    {
        $databaseName = \DB::connection()->getDatabaseName();
        dd($databaseName);
    }
}

and result of $ php artisan test:

Testing started at 11:11 PM ...
PHPUnit 9.5.10 by Sebastian Bergmann and contributors.

"actual"
Process finished with exit code 1

The main problem is test not using my .env.testing, otherwise it must returns

"testing" instead of "actual"

I've tried php artisan optimize already