public void TestFork()
{
WList <int> A = new WList <int>();
A.AddRange(new int[] { 1, 2, 3 });
WList <int> B = A.Clone();
A.Push(4);
ExpectList(B, 1, 2, 3);
ExpectList(A, 1, 2, 3, 4);
B.Push(-4);
ExpectList(B, 1, 2, 3, -4);
Assert.That(A.WithoutLast(2) == B.WithoutLast(2));
}
public void SimpleTests()
{
// Tests simple adds and removes from the front of the list. It
// makes part of its tail immutable, but doesn't make it mutable
// again. Also, we test operations that don't modify the list.
WList <int> list = new WList <int>();
Assert.That(list.IsEmpty);
// create VListBlockOfTwo
list = new WList <int>(10, 20);
ExpectList(list, 10, 20);
// Add()
list.Clear();
list.Add(1);
Assert.That(!list.IsEmpty);
list.Add(2);
Assert.AreEqual(1, list.BlockChainLength);
list.Add(3);
Assert.AreEqual(2, list.BlockChainLength);
ExpectList(list, 1, 2, 3);
VList <int> snap = list.ToVList();
ExpectList(snap, 1, 2, 3);
// AddRange(), Push(), Pop()
list.Push(4);
list.AddRange(new int[] { 5, 6 });
ExpectList(list, 1, 2, 3, 4, 5, 6);
Assert.AreEqual(list.Pop(), 6);
ExpectList(list, 1, 2, 3, 4, 5);
list.RemoveRange(3, 2);
ExpectList(list, 1, 2, 3);
// Double the list
list.AddRange(list);
ExpectList(list, 1, 2, 3, 1, 2, 3);
list.RemoveRange(3, 3);
// Fill a third block
list.AddRange(new int[] { 4, 5, 6, 7, 8, 9 });
list.AddRange(new int[] { 10, 11, 12, 13, 14 });
ExpectList(list, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14);
// Remove(), enumerator
list.Remove(14);
list.Remove(13);
list.Remove(12);
list.Remove(11);
ExpectListByEnumerator(list, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
// IndexOutOfRangeException
AssertThrows <IndexOutOfRangeException>(delegate() { int i = list[-1]; });
AssertThrows <IndexOutOfRangeException>(delegate() { int i = list[10]; });
AssertThrows <IndexOutOfRangeException>(delegate() { list.Insert(-1, -1); });
AssertThrows <IndexOutOfRangeException>(delegate() { list.Insert(list.Count + 1, -1); });
AssertThrows <IndexOutOfRangeException>(delegate() { list.RemoveAt(-1); });
AssertThrows <IndexOutOfRangeException>(delegate() { list.RemoveAt(list.Count); });
// Front, Contains, IndexOf
Assert.That(list.Last == 10);
Assert.That(list.Contains(9));
Assert.That(list[list.IndexOf(2)] == 2);
Assert.That(list[list.IndexOf(9)] == 9);
Assert.That(list[list.IndexOf(7)] == 7);
Assert.That(list.IndexOf(-1) == -1);
// snap is still the same
ExpectList(snap, 1, 2, 3);
}