public void InOrder_IntegerTest()
{
//arrange
AvlTree <int, int> avl = new AvlTree <int, int>();
//act
for (int i = 0; i < intInput.Length; i++)
{
avl.Insert(intInput[i], i);
}
string result = avl.InOrder();
string expected = "6 7 11 12 14 15 16 18 26 46 58 62 63 65 66 ";
//assert
Assert.Equal(expected, result);
}
public void AvlTree_Balance_Test()
{
AvlTree <int> Tree = new AvlTree <int>((a, b) => { return(a < b); });
Tree.Add(5);
Tree.Add(4);
Tree.Add(3);
Tree.Add(2);
Tree.Add(1);
Tree.Add(0);
Tree.Dump();
AvlTree <int> .NodeCheck
RootCheck = new AvlTree <int> .NodeCheck(),
Check_Left1 = new AvlTree <int> .NodeCheck(),
Check_Right1 = new AvlTree <int> .NodeCheck(),
Check_Left1_Left2 = new AvlTree <int> .NodeCheck(),
Check_Right1_Left2 = new AvlTree <int> .NodeCheck(),
Check_Right1_Right2 = new AvlTree <int> .NodeCheck()
;
// This is an explicit structural test
RootCheck.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(2, nodeCheck.Value);
Assert.AreEqual(0, nodeCheck.ParentId);
Assert.AreNotEqual(0, nodeCheck.LeftId);
Assert.AreNotEqual(0, nodeCheck.RightId);
return(true);
};
RootCheck.NextCheck = Check_Left1;
Check_Left1.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(1, nodeCheck.Value);
Assert.AreEqual(RootCheck.ThisId, nodeCheck.ParentId);
Assert.AreEqual(RootCheck.LeftId, nodeCheck.ThisId);
Assert.Greater(RootCheck.Value, nodeCheck.Value);
Assert.AreNotEqual(0, nodeCheck.LeftId); // should be left node
Assert.AreEqual(0, nodeCheck.RightId); // but no right node.
return(true);
};
Check_Left1.NextCheck = Check_Left1_Left2;
Check_Left1_Left2.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(0, nodeCheck.Value);
Assert.AreEqual(0, nodeCheck.LeftId);
Assert.AreEqual(0, nodeCheck.RightId);
Assert.AreEqual(Check_Left1.ThisId, nodeCheck.ParentId);
Assert.Greater(Check_Left1.Value, nodeCheck.Value);
return(true);
};
Check_Left1_Left2.NextCheck = Check_Right1;
Check_Right1.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(4, nodeCheck.Value);
Assert.AreEqual(RootCheck.ThisId, nodeCheck.ParentId);
Assert.AreEqual(RootCheck.RightId, nodeCheck.ThisId);
Assert.AreNotEqual(0, nodeCheck.LeftId);
Assert.AreNotEqual(0, nodeCheck.RightId);
Assert.Less(RootCheck.Value, nodeCheck.Value);
return(true);
};
Check_Right1.NextCheck = Check_Right1_Left2;
Check_Right1_Left2.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(3, nodeCheck.Value);
Assert.AreEqual(Check_Right1.ThisId, nodeCheck.ParentId);
Assert.AreEqual(Check_Right1.LeftId, nodeCheck.ThisId);
Assert.AreEqual(0, nodeCheck.LeftId);
Assert.AreEqual(0, nodeCheck.RightId);
Assert.Greater(Check_Right1.Value, nodeCheck.Value);
return(true);
};
Check_Right1_Left2.NextCheck = Check_Right1_Right2;
Check_Right1_Right2.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(5, nodeCheck.Value);
Assert.AreEqual(Check_Right1.ThisId, nodeCheck.ParentId);
Assert.AreEqual(Check_Right1.RightId, nodeCheck.ThisId);
Assert.AreEqual(0, nodeCheck.LeftId);
Assert.AreEqual(0, nodeCheck.RightId);
Assert.Less(Check_Right1.Value, nodeCheck.Value);
return(false); // end of tree
};
Tree.HierarchyCheck(RootCheck);
Console.WriteLine("\r\n: Tree Looks Like:");
Tree.InOrder((num) => { Console.WriteLine("> {0}", num); });
}
public void AvlTree_Balance_Test()
{
AvlTree<int> Tree = new AvlTree<int>((a, b) => { return a < b; });
Tree.Add(5);
Tree.Add(4);
Tree.Add(3);
Tree.Add(2);
Tree.Add(1);
Tree.Add(0);
Tree.Dump();
AvlTree<int>.NodeCheck
RootCheck = new AvlTree<int>.NodeCheck(),
Check_Left1 = new AvlTree<int>.NodeCheck(),
Check_Right1 = new AvlTree<int>.NodeCheck(),
Check_Left1_Left2 = new AvlTree<int>.NodeCheck(),
Check_Right1_Left2 = new AvlTree<int>.NodeCheck(),
Check_Right1_Right2 = new AvlTree<int>.NodeCheck()
;
// This is an explicit structural test
RootCheck.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(2, nodeCheck.Value);
Assert.AreEqual(0, nodeCheck.ParentId);
Assert.AreNotEqual(0, nodeCheck.LeftId);
Assert.AreNotEqual(0, nodeCheck.RightId);
return true;
};
RootCheck.NextCheck = Check_Left1;
Check_Left1.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(1, nodeCheck.Value);
Assert.AreEqual(RootCheck.ThisId, nodeCheck.ParentId);
Assert.AreEqual(RootCheck.LeftId, nodeCheck.ThisId);
Assert.Greater(RootCheck.Value, nodeCheck.Value);
Assert.AreNotEqual(0, nodeCheck.LeftId); // should be left node
Assert.AreEqual(0, nodeCheck.RightId); // but no right node.
return true;
};
Check_Left1.NextCheck = Check_Left1_Left2;
Check_Left1_Left2.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(0, nodeCheck.Value);
Assert.AreEqual(0, nodeCheck.LeftId);
Assert.AreEqual(0, nodeCheck.RightId);
Assert.AreEqual(Check_Left1.ThisId, nodeCheck.ParentId);
Assert.Greater(Check_Left1.Value, nodeCheck.Value);
return true;
};
Check_Left1_Left2.NextCheck = Check_Right1;
Check_Right1.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(4, nodeCheck.Value);
Assert.AreEqual(RootCheck.ThisId, nodeCheck.ParentId);
Assert.AreEqual(RootCheck.RightId, nodeCheck.ThisId);
Assert.AreNotEqual(0, nodeCheck.LeftId);
Assert.AreNotEqual(0, nodeCheck.RightId);
Assert.Less(RootCheck.Value, nodeCheck.Value);
return true;
};
Check_Right1.NextCheck = Check_Right1_Left2;
Check_Right1_Left2.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(3, nodeCheck.Value);
Assert.AreEqual(Check_Right1.ThisId, nodeCheck.ParentId);
Assert.AreEqual(Check_Right1.LeftId, nodeCheck.ThisId);
Assert.AreEqual(0, nodeCheck.LeftId);
Assert.AreEqual(0, nodeCheck.RightId);
Assert.Greater(Check_Right1.Value, nodeCheck.Value);
return true;
};
Check_Right1_Left2.NextCheck = Check_Right1_Right2;
Check_Right1_Right2.Verify = (nodeCheck) =>
{
Console.WriteLine(nodeCheck);
Assert.AreEqual(5, nodeCheck.Value);
Assert.AreEqual(Check_Right1.ThisId, nodeCheck.ParentId);
Assert.AreEqual(Check_Right1.RightId, nodeCheck.ThisId);
Assert.AreEqual(0, nodeCheck.LeftId);
Assert.AreEqual(0, nodeCheck.RightId);
Assert.Less(Check_Right1.Value, nodeCheck.Value);
return false; // end of tree
};
Tree.HierarchyCheck(RootCheck);
Console.WriteLine("\r\n: Tree Looks Like:");
Tree.InOrder((num) => { Console.WriteLine("> {0}", num); });
}
private static void TestAVLTree(int[] myArray)
{
AvlTree <int, int> avl = new AvlTree <int, int>();
Console.WriteLine("\nBALANCED! Time O(log n) Space O(n)");
for (int i = 0; i < myArray.Length; i++)
{
avl.Insert(myArray[i], i);
}
Console.WriteLine("\nIn Order:\n" + avl.InOrder());
Console.WriteLine("\nPos Order:\n" + avl.PosOrder());
Console.WriteLine("\nPre Order:\n" + avl.PreOrder());
Node <int, int> node = null;
int objInt = 0;// "nada";
if ((node = avl.Search(objInt)) != null)
{
Console.WriteLine("\nThe Value of " + objInt + " key: " + node.Key + " synonymous of " + objInt + ": " + node.Value + " index: " + node.Index);
}
else
{
Console.WriteLine("\nIt was not possible to find the " + objInt + " key in the dataset.");
}
objInt = 9992;//"nada";
if ((node = avl.Search(objInt)) != null)
{
Console.WriteLine("\nThe Value of " + objInt + " key: " + node.Value);
}
else
{
Console.WriteLine("\nIt was not possible to find the " + objInt + " key in the dataset. Did you remove it?\n");
}
Console.WriteLine("\nkey " + objInt + ": " + avl.AvlLog.ToString());
//NODE IS A LEAF
if (avl.Remove(objInt))
{
Console.WriteLine("\nkey " + objInt + " was successfully removed.");
}
else
{
Console.WriteLine("\nkey " + objInt + " was not found.");
}
if ((node = avl.Search(objInt)) != null)
{
Console.WriteLine("\nThe Value of " + objInt + " key: " + node.Value + " your remove has failed.");
}
else
{
Console.WriteLine("\nIt was not possible to find the " + objInt + " key in the dataset. Did you remove it?\n");
}
//NODE HAS 1 SUBTREE
objInt = 9204; //"arroz";//
if (avl.Remove(objInt))
{
Console.WriteLine("\nkey " + objInt + " was successfully removed.");
}
else
{
Console.WriteLine("\nkey " + objInt + " was not found.");
}
if ((node = avl.Search(objInt)) != null)
{
Console.WriteLine("\nThe Value of " + objInt + " key: " + node.Value + " your remove has failed.");
}
else
{
Console.WriteLine("\nIt was not possible to find the " + objInt + " key in the dataset. Did you remove it?\n");
}
//NODE HAS 2 SUBTREE
objInt = 18;// "muito";//
if (avl.Remove(objInt))
{
Console.WriteLine("\nkey " + objInt + " was successfully removed.");
}
else
{
Console.WriteLine("\nkey " + objInt + " was not found.");
}
if ((node = avl.Search(objInt)) != null)
{
Console.WriteLine("\nThe Value of " + objInt + " key: " + node.Value + " your remove has failed.");
}
else
{
Console.WriteLine("\nIt was not possible to find the " + objInt + " key in the dataset. Did you remove it?\n");
}
//NODE HAS 2 SUBTREE AND IS ROOT
objInt = 15; //"mamão";//
if (avl.Remove(objInt))
{
Console.WriteLine("\nkey " + objInt + " was successfully removed.");
}
else
{
Console.WriteLine("\nkey " + objInt + " was not found.");
}
if ((node = avl.Search(objInt)) != null)
{
Console.WriteLine("\nThe Value of " + objInt + " key: " + node.Value + " your remove has failed.");
}
else
{
Console.WriteLine("\nIt was not possible to find the " + objInt + " key in the dataset. Did you remove it?\n");
}
Console.WriteLine("\nIn Order:\n" + avl.InOrder());
}