public void GetListCheck()
{
List <AirportModel> test_list = new List <AirportModel>();
AirportModel air_test1 = new AirportModel
{
direction = "Canada",
departureTime = new DateTime(2018, 3, 12, 7, 0, 0),
arriveTime = new DateTime(2008, 3, 12, 10, 0, 0),
};
AirportModel air_test2 = new AirportModel
{
direction = "Italy",
departureTime = new DateTime(2017, 3, 1, 7, 0, 0),
arriveTime = new DateTime(2017, 4, 1, 10, 0, 0),
};
test_list.Add(air_test1);
test_list.Add(air_test2);
CollectionAssert.IsNotSubsetOf(test_list, m.GetList());
}