public void TestSampleArgs()
{
TravelCard card1;
card1.CityFrom = "Мельбурн";
card1.CityTo = "Кельн";
TravelCard card2;
card2.CityFrom = "Москва";
card2.CityTo = "Париж";
TravelCard card3;
card3.CityFrom = "Кельн";
card3.CityTo = "Москва";
TravelCard[] cards = { card1, card2, card3 };
TravelHelper.Sort(cards);
}
public void TestInvalidArgs()
{
TravelCard card1;
card1.CityFrom = "Мельбурн";
card1.CityTo = "Кельн";
TravelCard card2;
card2.CityFrom = "Москва";
card2.CityTo = "Париж";
TravelCard card3;
card3.CityFrom = "Кельн";
card3.CityTo = "Москва";
TravelCard card4;
card4.CityFrom = "Рига";
card4.CityTo = "Москва";
TravelCard[] cards = { card1, card2, card3, card4 };
TravelHelper.Sort(cards);
}