public void CheckUsernameExistance()
{
countryDAO.Add(new Country("Israel"));
AirlineCompany airlineOne = new AirlineCompany("NAME", "USERNAME", "PASSWORD", countryDAO.GetCountryByName("Israel").ID);
AirlineCompany airlineTwo = new AirlineCompany("NAME2", "USERNAME2", "PASSWORD2", countryDAO.GetCountryByName("Israel").ID);
airlineDAO.Add(airlineOne);
airlineDAO.Add(airlineTwo);
airlineOne = airlineDAO.GetAirlineByName("NAME");
airlineTwo = airlineDAO.GetAirlineByName("NAME2");
Assert.AreEqual(false, airlineDAO.CheckUsernameExistance("USERNAME", airlineOne.ID));
Assert.AreEqual(true, airlineDAO.CheckUsernameExistance("USERNAME", airlineTwo.ID));
}
