private static void AddTest()
{
string TesterId, traineeId, date;
TesterId = input("tester id");
traineeId = input("trainee id");
date = input("date of the test");
Address _address = new Address();
_address.street_name = input(input("address"));
bl.AddFutureTest(new Test(int.Parse(TesterId), int.Parse(traineeId), DateTime.Parse(date), _address));
}