public void VersioningTreeDescendingInsertion()
{
const int treeSize = 10000;
VersioningTree <int, int> tree = new VersioningTree <int, int>(0, 0, null, null);
for (int i = treeSize - 1; i > 0; i--)
{
tree = tree.SetKeyValue(i, i * 10, CompareIntegers);
}
VerifyHeight(tree, 20);
for (int i = 0; i < treeSize; i++)
{
Assert.AreEqual(i * 10, tree.GetValue(i, CompareIntegers), "Node value");
}
for (int i = treeSize - 1; i > 0; i--)
{
tree = tree.SetKeyValue(i, i * 2, CompareIntegers);
}
VerifyHeight(tree, 20);
for (int i = 0; i < treeSize; i++)
{
Assert.AreEqual(i * 2, tree.GetValue(i, CompareIntegers), "Node value");
}
}
private void VerifyLeaf(VersioningTree<int, int> tree)
{
Assert.IsNull(tree.LeftChild, "Leaf child");
Assert.IsNull(tree.RightChild, "Leaf child");
}
private void VerifyKey(VersioningTree<int, int> tree, int expectedKey)
{
Assert.AreEqual(expectedKey, tree.Key, "Node key");
}
private void VerifyHeight(VersioningTree<int, int> tree, int expectedHeight)
{
Assert.AreEqual(expectedHeight, tree.Height, "Node height");
}
public void VersioningTreeBasicInsertion()
{
VersioningTree<int, int> tree = new VersioningTree<int, int>(100, 1000, null, null);
tree = tree.SetKeyValue(90, 900, CompareIntegers);
tree = tree.SetKeyValue(110, 1100, CompareIntegers);
VerifyKey(tree, 100);
VerifyKey(tree.LeftChild, 90);
VerifyKey(tree.RightChild, 110);
tree = tree.SetKeyValue(80, 800, CompareIntegers);
tree = tree.SetKeyValue(85, 850, CompareIntegers);
VerifyKey(tree, 90);
VerifyKey(tree.RightChild, 100);
VerifyKey(tree.RightChild.RightChild, 110);
VerifyKey(tree.LeftChild, 80);
VerifyKey(tree.LeftChild.RightChild, 85);
var OneHundred = tree.RightChild;
tree = tree.SetKeyValue(70, 700, CompareIntegers);
tree = tree.SetKeyValue(60, 600, CompareIntegers);
tree = tree.SetKeyValue(50, 500, CompareIntegers);
tree = tree.SetKeyValue(80, 800, CompareIntegers);
VerifyKey(tree, 80);
VerifyKey(tree.LeftChild, 60);
VerifyKey(tree.LeftChild.LeftChild, 50);
VerifyKey(tree.LeftChild.RightChild, 70);
VerifyKey(tree.RightChild, 90);
VerifyKey(tree.RightChild.LeftChild, 85);
VerifyKey(tree.RightChild.RightChild, 100);
VerifyKey(tree.RightChild.RightChild.RightChild, 110);
// Test that the 100 node has not been copied.
Assert.AreEqual(OneHundred, tree.RightChild.RightChild, "Tree nodes EQ");
var Sixty = tree.LeftChild;
tree = tree.SetKeyValue(96, 960, CompareIntegers);
tree = tree.SetKeyValue(98, 980, CompareIntegers);
VerifyKey(tree, 90);
VerifyKey(tree.LeftChild, 80);
VerifyKey(tree.LeftChild.LeftChild, 60);
VerifyKey(tree.LeftChild.LeftChild.LeftChild, 50);
VerifyKey(tree.LeftChild.LeftChild.RightChild, 70);
VerifyKey(tree.LeftChild.RightChild, 85);
VerifyKey(tree.RightChild, 100);
VerifyKey(tree.RightChild.LeftChild, 96);
VerifyKey(tree.RightChild.LeftChild.RightChild, 98);
VerifyKey(tree.RightChild.RightChild, 110);
// Test that the 60 node has not been copied.
Assert.AreEqual(Sixty, tree.LeftChild.LeftChild, "Tree nodes EQ");
var Fifty = tree.LeftChild.LeftChild.LeftChild;
OneHundred = tree.RightChild;
tree = tree.SetKeyValue(65, 650, CompareIntegers);
VerifyKey(tree, 90);
VerifyKey(tree.LeftChild, 60);
VerifyKey(tree.LeftChild.LeftChild, 50);
VerifyLeaf(tree.LeftChild.LeftChild);
VerifyKey(tree.LeftChild.RightChild, 80);
VerifyKey(tree.LeftChild.RightChild.LeftChild, 70);
VerifyKey(tree.LeftChild.RightChild.LeftChild.LeftChild, 65);
Assert.IsNull(tree.LeftChild.RightChild.LeftChild.RightChild, "Null child");
VerifyKey(tree.LeftChild.RightChild.RightChild, 85);
VerifyKey(tree.RightChild, 100);
VerifyKey(tree.RightChild.LeftChild, 96);
Assert.IsNull(tree.RightChild.LeftChild.LeftChild, "Null child");
VerifyKey(tree.RightChild.LeftChild.RightChild, 98);
VerifyKey(tree.RightChild.RightChild, 110);
VerifyLeaf(tree.RightChild.RightChild);
Assert.AreEqual(Fifty, tree.LeftChild.LeftChild, "Tree nodes EQ");
Assert.AreEqual(OneHundred, tree.RightChild, "Tree nodes EQ");
Sixty = tree.LeftChild;
tree = tree.SetKeyValue(95, 950, CompareIntegers);
tree = tree.SetKeyValue(94, 940, CompareIntegers);
tree = tree.SetKeyValue(93, 930, CompareIntegers);
tree = tree.SetKeyValue(93, 930, CompareIntegers);
tree = tree.SetKeyValue(92, 920, CompareIntegers);
tree = tree.SetKeyValue(91, 910, CompareIntegers);
VerifyKey(tree, 90);
VerifyKey(tree.LeftChild, 60);
VerifyKey(tree.LeftChild.LeftChild, 50);
VerifyLeaf(tree.LeftChild.LeftChild);
VerifyKey(tree.LeftChild.RightChild, 80);
VerifyKey(tree.LeftChild.RightChild.LeftChild, 70);
VerifyKey(tree.LeftChild.RightChild.LeftChild.LeftChild, 65);
VerifyLeaf(tree.LeftChild.RightChild.LeftChild.LeftChild);
Assert.IsNull(tree.LeftChild.RightChild.LeftChild.RightChild, "Null child");
VerifyKey(tree.LeftChild.RightChild.RightChild, 85);
VerifyLeaf(tree.LeftChild.RightChild.RightChild);
VerifyKey(tree.RightChild, 94);
VerifyKey(tree.RightChild.LeftChild, 92);
VerifyKey(tree.RightChild.LeftChild.LeftChild, 91);
VerifyLeaf(tree.RightChild.LeftChild.LeftChild);
VerifyKey(tree.RightChild.LeftChild.RightChild, 93);
VerifyLeaf(tree.RightChild.LeftChild.RightChild);
VerifyKey(tree.RightChild.RightChild, 96);
VerifyKey(tree.RightChild.RightChild.LeftChild, 95);
VerifyLeaf(tree.RightChild.RightChild.LeftChild);
VerifyKey(tree.RightChild.RightChild.RightChild, 100);
VerifyKey(tree.RightChild.RightChild.RightChild.LeftChild, 98);
VerifyLeaf(tree.RightChild.RightChild.RightChild.LeftChild);
VerifyKey(tree.RightChild.RightChild.RightChild.RightChild, 110);
VerifyLeaf(tree.RightChild.RightChild.RightChild.RightChild);
Assert.AreEqual(Sixty, tree.LeftChild, "Tree nodes EQ");
tree = tree.Remove(60, CompareIntegers);
tree = tree.Remove(92, CompareIntegers);
tree = tree.Remove(91, CompareIntegers);
tree = tree.Remove(98, CompareIntegers);
tree = tree.Remove(85, CompareIntegers);
tree = tree.Remove(110, CompareIntegers);
tree = tree.Remove(93, CompareIntegers);
tree = tree.Remove(50, CompareIntegers);
tree = tree.Remove(96, CompareIntegers);
tree = tree.Remove(70, CompareIntegers);
tree = tree.Remove(94, CompareIntegers);
VerifyKey(tree, 90);
VerifyKey(tree.LeftChild, 80);
VerifyKey(tree.LeftChild.LeftChild, 65);
VerifyLeaf(tree.LeftChild.LeftChild);
Assert.IsNull(tree.LeftChild.RightChild, "Null child");
VerifyKey(tree.RightChild, 100);
VerifyKey(tree.RightChild.LeftChild, 95);
VerifyLeaf(tree.RightChild.LeftChild);
Assert.IsNull(tree.RightChild.RightChild, "Null child");
tree = tree.Remove(90, CompareIntegers);
tree = tree.Remove(65, CompareIntegers);
tree = tree.Remove(100, CompareIntegers);
tree = tree.Remove(95, CompareIntegers);
tree = tree.Remove(80, CompareIntegers);
Assert.IsNull(tree, "Null tree");
}
public void VersioningTreeDescendingInsertion()
{
const int treeSize = 10000;
VersioningTree<int, int> tree = new VersioningTree<int, int>(0, 0, null, null);
for (int i = treeSize - 1; i > 0; i--)
{
tree = tree.SetKeyValue(i, i * 10, CompareIntegers);
}
VerifyHeight(tree, 20);
for (int i = 0; i < treeSize; i++)
{
Assert.AreEqual(i * 10, tree.GetValue(i, CompareIntegers), "Node value");
}
for (int i = treeSize - 1; i > 0; i--)
{
tree = tree.SetKeyValue(i, i * 2, CompareIntegers);
}
VerifyHeight(tree, 20);
for (int i = 0; i < treeSize; i++)
{
Assert.AreEqual(i * 2, tree.GetValue(i, CompareIntegers), "Node value");
}
}
private void VerifyLeaf(VersioningTree <int, int> tree)
{
Assert.IsNull(tree.LeftChild, "Leaf child");
Assert.IsNull(tree.RightChild, "Leaf child");
}
private void VerifyKey(VersioningTree <int, int> tree, int expectedKey)
{
Assert.AreEqual(expectedKey, tree.Key, "Node key");
}
private void VerifyHeight(VersioningTree <int, int> tree, int expectedHeight)
{
Assert.AreEqual(expectedHeight, tree.Height, "Node height");
}
public void VersioningTreeBasicInsertion()
{
VersioningTree <int, int> tree = new VersioningTree <int, int>(100, 1000, null, null);
tree = tree.SetKeyValue(90, 900, CompareIntegers);
tree = tree.SetKeyValue(110, 1100, CompareIntegers);
VerifyKey(tree, 100);
VerifyKey(tree.LeftChild, 90);
VerifyKey(tree.RightChild, 110);
tree = tree.SetKeyValue(80, 800, CompareIntegers);
tree = tree.SetKeyValue(85, 850, CompareIntegers);
VerifyKey(tree, 90);
VerifyKey(tree.RightChild, 100);
VerifyKey(tree.RightChild.RightChild, 110);
VerifyKey(tree.LeftChild, 80);
VerifyKey(tree.LeftChild.RightChild, 85);
var OneHundred = tree.RightChild;
tree = tree.SetKeyValue(70, 700, CompareIntegers);
tree = tree.SetKeyValue(60, 600, CompareIntegers);
tree = tree.SetKeyValue(50, 500, CompareIntegers);
tree = tree.SetKeyValue(80, 800, CompareIntegers);
VerifyKey(tree, 80);
VerifyKey(tree.LeftChild, 60);
VerifyKey(tree.LeftChild.LeftChild, 50);
VerifyKey(tree.LeftChild.RightChild, 70);
VerifyKey(tree.RightChild, 90);
VerifyKey(tree.RightChild.LeftChild, 85);
VerifyKey(tree.RightChild.RightChild, 100);
VerifyKey(tree.RightChild.RightChild.RightChild, 110);
// Test that the 100 node has not been copied.
Assert.AreEqual(OneHundred, tree.RightChild.RightChild, "Tree nodes EQ");
var Sixty = tree.LeftChild;
tree = tree.SetKeyValue(96, 960, CompareIntegers);
tree = tree.SetKeyValue(98, 980, CompareIntegers);
VerifyKey(tree, 90);
VerifyKey(tree.LeftChild, 80);
VerifyKey(tree.LeftChild.LeftChild, 60);
VerifyKey(tree.LeftChild.LeftChild.LeftChild, 50);
VerifyKey(tree.LeftChild.LeftChild.RightChild, 70);
VerifyKey(tree.LeftChild.RightChild, 85);
VerifyKey(tree.RightChild, 100);
VerifyKey(tree.RightChild.LeftChild, 96);
VerifyKey(tree.RightChild.LeftChild.RightChild, 98);
VerifyKey(tree.RightChild.RightChild, 110);
// Test that the 60 node has not been copied.
Assert.AreEqual(Sixty, tree.LeftChild.LeftChild, "Tree nodes EQ");
var Fifty = tree.LeftChild.LeftChild.LeftChild;
OneHundred = tree.RightChild;
tree = tree.SetKeyValue(65, 650, CompareIntegers);
VerifyKey(tree, 90);
VerifyKey(tree.LeftChild, 60);
VerifyKey(tree.LeftChild.LeftChild, 50);
VerifyLeaf(tree.LeftChild.LeftChild);
VerifyKey(tree.LeftChild.RightChild, 80);
VerifyKey(tree.LeftChild.RightChild.LeftChild, 70);
VerifyKey(tree.LeftChild.RightChild.LeftChild.LeftChild, 65);
Assert.IsNull(tree.LeftChild.RightChild.LeftChild.RightChild, "Null child");
VerifyKey(tree.LeftChild.RightChild.RightChild, 85);
VerifyKey(tree.RightChild, 100);
VerifyKey(tree.RightChild.LeftChild, 96);
Assert.IsNull(tree.RightChild.LeftChild.LeftChild, "Null child");
VerifyKey(tree.RightChild.LeftChild.RightChild, 98);
VerifyKey(tree.RightChild.RightChild, 110);
VerifyLeaf(tree.RightChild.RightChild);
Assert.AreEqual(Fifty, tree.LeftChild.LeftChild, "Tree nodes EQ");
Assert.AreEqual(OneHundred, tree.RightChild, "Tree nodes EQ");
Sixty = tree.LeftChild;
tree = tree.SetKeyValue(95, 950, CompareIntegers);
tree = tree.SetKeyValue(94, 940, CompareIntegers);
tree = tree.SetKeyValue(93, 930, CompareIntegers);
tree = tree.SetKeyValue(93, 930, CompareIntegers);
tree = tree.SetKeyValue(92, 920, CompareIntegers);
tree = tree.SetKeyValue(91, 910, CompareIntegers);
VerifyKey(tree, 90);
VerifyKey(tree.LeftChild, 60);
VerifyKey(tree.LeftChild.LeftChild, 50);
VerifyLeaf(tree.LeftChild.LeftChild);
VerifyKey(tree.LeftChild.RightChild, 80);
VerifyKey(tree.LeftChild.RightChild.LeftChild, 70);
VerifyKey(tree.LeftChild.RightChild.LeftChild.LeftChild, 65);
VerifyLeaf(tree.LeftChild.RightChild.LeftChild.LeftChild);
Assert.IsNull(tree.LeftChild.RightChild.LeftChild.RightChild, "Null child");
VerifyKey(tree.LeftChild.RightChild.RightChild, 85);
VerifyLeaf(tree.LeftChild.RightChild.RightChild);
VerifyKey(tree.RightChild, 94);
VerifyKey(tree.RightChild.LeftChild, 92);
VerifyKey(tree.RightChild.LeftChild.LeftChild, 91);
VerifyLeaf(tree.RightChild.LeftChild.LeftChild);
VerifyKey(tree.RightChild.LeftChild.RightChild, 93);
VerifyLeaf(tree.RightChild.LeftChild.RightChild);
VerifyKey(tree.RightChild.RightChild, 96);
VerifyKey(tree.RightChild.RightChild.LeftChild, 95);
VerifyLeaf(tree.RightChild.RightChild.LeftChild);
VerifyKey(tree.RightChild.RightChild.RightChild, 100);
VerifyKey(tree.RightChild.RightChild.RightChild.LeftChild, 98);
VerifyLeaf(tree.RightChild.RightChild.RightChild.LeftChild);
VerifyKey(tree.RightChild.RightChild.RightChild.RightChild, 110);
VerifyLeaf(tree.RightChild.RightChild.RightChild.RightChild);
Assert.AreEqual(Sixty, tree.LeftChild, "Tree nodes EQ");
tree = tree.Remove(60, CompareIntegers);
tree = tree.Remove(92, CompareIntegers);
tree = tree.Remove(91, CompareIntegers);
tree = tree.Remove(98, CompareIntegers);
tree = tree.Remove(85, CompareIntegers);
tree = tree.Remove(110, CompareIntegers);
tree = tree.Remove(93, CompareIntegers);
tree = tree.Remove(50, CompareIntegers);
tree = tree.Remove(96, CompareIntegers);
tree = tree.Remove(70, CompareIntegers);
tree = tree.Remove(94, CompareIntegers);
VerifyKey(tree, 90);
VerifyKey(tree.LeftChild, 80);
VerifyKey(tree.LeftChild.LeftChild, 65);
VerifyLeaf(tree.LeftChild.LeftChild);
Assert.IsNull(tree.LeftChild.RightChild, "Null child");
VerifyKey(tree.RightChild, 100);
VerifyKey(tree.RightChild.LeftChild, 95);
VerifyLeaf(tree.RightChild.LeftChild);
Assert.IsNull(tree.RightChild.RightChild, "Null child");
tree = tree.Remove(90, CompareIntegers);
tree = tree.Remove(65, CompareIntegers);
tree = tree.Remove(100, CompareIntegers);
tree = tree.Remove(95, CompareIntegers);
tree = tree.Remove(80, CompareIntegers);
Assert.IsNull(tree, "Null tree");
}
