I have used a static website id for inserting into a specific database but the test case is not rolling back after the test case run.
class order extends TestCase

{
    use ApiTestTrait;
    protected $connectionsToTransact = ["new_company"];
    // to which business
    protected $organization = 1;
    protected $restaurant = "1";
    protected $terminal = 1;
    protected $screen = "1";
    protected $userId = "1";

 public function testcase()
    {
//code here;
    }
}