laravel phpunit db connection in tearDownAfterClass

Question

how to call Illuminate\Support\Facades\DB methods in tearDownAfterClass function? I get error Call to undefined method Illuminate\Support\Facades\DB::select()

use Illuminate\Support\Facades\DB;

abstract class TestCase extends BaseTestCase
{
    use CreatesApplication;
    use RefreshDatabase;

    public static function tearDownAfterClass(): void
    {
        $databases = DB::select("SHOW DATABASES LIKE '". env('SCHEMA_PREFIX')."%'",[]);
        ...
    }
}

Answer 1

Had this problem myself, the only solution was a wierd hack found at https://laracasts.com/discuss/channels/testing/seedingunseeding-the-database-once-per-test-class?page=1#reply=609036

adds (new self())->setUp in tearDownAfterClass :

public static function tearDownAfterClass(): void
{
  (new self())->setUp();
  DB:statement('stuff');//works now
}

Answer 2

and may be, it can be like this:

public static function tearDownAfterClass(): void
{
  self::setUp();
  DB:statement('stuff');//works now
}