public void SetItemOutOfRangeTest()
{
const int count = 10;
IPersistentList <int> list = PersistentList <int> .Of(new int[count]);
Assert.Throws <IndexOutOfRangeException>(() => list.Set(-1, -1));
Assert.Throws <IndexOutOfRangeException>(() => list.Set(count, -1));
}
public void SetItemTest()
{
const int count = 200;
IPersistentList <int> list = PersistentList <int> .Empty;
for (int i = 0; i < count; i++)
{
list = list.Add(i);
}
IPersistentList <int> list2 = list;
for (int i = 0; i < count; i++)
{
list = list.Set(i, j => j + 1, out int oldValue);
Assert.Equal(i, oldValue);
list2 = list2.Set(i, i + 1, out oldValue);
Assert.Equal(i, oldValue);
}
CheckListEquality(Enumerable.Range(1, count).ToArray(), list);
CheckListEquality(Enumerable.Range(1, count).ToArray(), list2);
}