public int SelectHyper()
{
var source = ReadOnlyListExtensions.Select <ImmutableArray <int>, int, int>(array, item => item);
var sum = 0;
for (var index = 0; index < source.Count; index++)
{
sum += source[index];
}
return(sum);
}
public void Select_With_NullSelector_Must_Throw()
{
// Arrange
var source = Wrap.AsReadOnlyList(new int[0]);
var selector = (NullableSelectorAt <int, string>)null;
// Act
Action action = () => _ = ReadOnlyListExtensions.Select <Wrap.ReadOnlyListWrapper <int>, int, string>(source, selector);
// Assert
_ = action.Must()
.Throw <ArgumentNullException>()
.EvaluateTrue(exception => exception.ParamName == "selector");
}
public void Select_With_ValidData_Must_Succeed(int[] source, NullableSelectorAt <int, string> selector)
{
// Arrange
var wrapped = Wrap.AsReadOnlyList(source);
var expected =
System.Linq.Enumerable.Select(wrapped, selector.AsFunc());
// Act
var result = ReadOnlyListExtensions
.Select <Wrap.ReadOnlyListWrapper <int>, int, string>(wrapped, selector);
// Assert
_ = result.Must()
.BeEnumerableOf <string>()
.BeEqualTo(expected);
}
public void ToList_SelectorAt_With_Null_Must_Throw()
{
// Arrange
var source = new int[0];
var wrapped = Wrap.AsReadOnlyList(source);
var selector = (NullableSelectorAt <int, string>)null;
// Act
Action action = () => _ = ReadOnlyListExtensions
.Select(wrapped, selector)
.ToList();
// Assert
_ = action.Must()
.Throw <ArgumentNullException>()
.EvaluateTrue(exception => exception.ParamName == "selector");
}