public void TestRemoveNode()
{
// Arrange
ReadCopyUpdateList <int> list = new ReadCopyUpdateList <int>();
// Assume
AssertThrow <ArgumentNullException>(() => list.Remove(null));
// Act
bool removeFromEmptyList = list.Remove(new ReadCopyUpdateListNode <int>(0));
ReadCopyUpdateListNode <int> node0 = list.AddFirst(0);
ReadCopyUpdateListNode <int> node1 = list.AddAfter(node0, 1);
ReadCopyUpdateListNode <int> node2 = list.AddAfter(node1, 2);
ReadCopyUpdateListNode <int> node3 = list.AddAfter(node2, 3);
ReadCopyUpdateListNode <int> node4 = list.AddAfter(node3, 4);
list.AddAfter(node4, 5);
bool removed3 = list.Remove(node3);
bool removed3Again = list.Remove(node3);
bool removed72 = list.Remove(new ReadCopyUpdateListNode <int>(72));
bool removed0 = list.Remove(node0);
// Assert
Assert.IsFalse(removeFromEmptyList);
Assert.IsTrue(removed3);
Assert.IsFalse(removed3Again);
Assert.IsFalse(removed72);
Assert.IsTrue(removed0);
}
public void TestAddAfter()
{
// Arrange
ReadCopyUpdateList <int> list = new ReadCopyUpdateList <int>();
// Assume
AssertThrow <ArgumentNullException>(() => list.AddAfter(null, 4));
// Act
ReadCopyUpdateListNode <int> last = list.AddFirst(0); // Will be last when next node added
ReadCopyUpdateListNode <int> first = list.AddFirst(1);
ReadCopyUpdateListNode <int> newLast = list.AddAfter(last, 2);
ReadCopyUpdateListNode <int> mid = list.AddAfter(first, 3);
// Assert
Assert.AreEqual(first, list.First);
Assert.AreEqual(mid, first.Next);
Assert.AreEqual(last, mid.Next);
Assert.AreEqual(newLast, last.Next);
}