public void First_With_Empty_Must_Return_None(int[] source) { // Arrange var wrapped = Wrap .AsReadOnlyList <int>(source); // Act var result = ReadOnlyListExtensions .First <Wrap.ReadOnlyListWrapper <int>, int>(wrapped); // Assert _ = result.Must() .BeOfType <Option <int> >() .EvaluateTrue(option => option.IsNone); }
public void First_With_ValidData_Must_Return_Some(int[] source) { // Arrange var wrapped = Wrap .AsReadOnlyList <int>(source); var expected = Enumerable .First(source); // Act var result = ReadOnlyListExtensions .First <Wrap.ReadOnlyListWrapper <int>, int>(wrapped); // Assert _ = result.Match( value => value.Must().BeEqualTo(expected), () => throw new Exception()); }