public void FlightFuncsTest()
{
FlightDAOMSSQL flight = new FlightDAOMSSQL();
flight.RemoveAll();
CountryDAOMSSQL c = new CountryDAOMSSQL();
c.RemoveAll();
AirlineDAOMSSQL airline = new AirlineDAOMSSQL();
airline.RemoveAll();
Country c1 = new Country("israel");
c.Add(c1);
AirlineCompany airline1 = new AirlineCompany("eldal", "maher", "123", c1.Id);
airline.Add(airline1);
DateTime t = DateTime.Now;
DateTime t1 = new DateTime(2019, 8, 20, 22, 33, 22);
Flight f1 = new Flight(airline1.Id, c1.Id, c1.Id, t, t1, 22);
flight.Add(f1);
Assert.AreEqual(f1, flight.GetFlighstByOriginCountry(f1.OriginCountryCode)[0]);
}