public void Return_An_Empty_Pair_When_Given_An_Empty_List() { var persons = new List <Person>(); var finder = new PairFinder(persons); var result = finder.FindPair(Filter.ClosestAge); Assert.Null(result.OldestPerson); Assert.Null(result.YoungestPerson); }
public void Returns_The_Closest_Age_Pair_For_Four_People_List() { var persons = new List <Person>() { _greg, _mike, _sarah, _sue }; var finder = new PairFinder(persons); var result = finder.FindPair(Filter.ClosestAge); Assert.Same(_sue, result.OldestPerson); Assert.Same(_greg, result.YoungestPerson); }