public void UniqueRandomPickerShouldBeAbleToPickFromList()
{
var list = Substitute.For <IList <MyClass> >();
var picker = new UniqueRandomPicker <MyClass>(constraint, uniqueRandomGenerator);
var capacity = 10;
var randomIndex = 3;
var end = 2;
list.Count.Returns(capacity);
constraint.GetEnd().Returns(end);
uniqueRandomGenerator.Next(0, capacity).Returns(randomIndex);
list[randomIndex].Returns(new MyClass());
picker.From(list);
uniqueRandomGenerator.Received().Reset();
}
public IList <T> From(IList <T> listToPickFrom)
{
uniqueRandomGenerator.Reset();
int capacity = listToPickFrom.Count;
var listToReturn = new List <T>();
int end = constraint.GetEnd();
for (int i = 0; i < end; i++)
{
int index = uniqueRandomGenerator.Next(0, capacity);
listToReturn.Add(listToPickFrom[index]);
}
return(listToReturn);
}