./artisan test wipes both main and tests db

hello! i'm running laravel 12 and testing with PHPunit, i have configured it like so in my phpunit.xml:

        <env name="DB_CONNECTION" value="pgsql_testing"/>

and in my database.php config:

'pgsql_testing' => [
            'driver' => 'pgsql',
            'database' => env('DB_DATABASE', '') . '_test',

i use some tests with the RefreshDatabase trait, but when i run my tests my main db gets wiped together with the tests database. i don't understand what i am missing. thanks.