public void BinomialMinHeap_Test()
{
int nodeCount = 1000 * 10;
//insert test
var tree = new BinomialMinHeap <int>();
for (int i = 0; i <= nodeCount; i++)
{
tree.Insert(i);
}
for (int i = 0; i <= nodeCount; i++)
{
tree.DecrementKey(i, i - 1);
}
int min = 0;
for (int i = 0; i <= nodeCount; i++)
{
min = tree.ExtractMin();
Assert.AreEqual(min, i - 1);
}
//IEnumerable tests.
Assert.AreEqual(tree.Count, tree.Count());
var rnd = new Random();
var testSeries = Enumerable.Range(0, nodeCount - 1).OrderBy(x => rnd.Next()).ToList();
foreach (var item in testSeries)
{
tree.Insert(item);
}
for (int i = 0; i < testSeries.Count; i++)
{
var decremented = testSeries[i] - rnd.Next(0, 1000);
tree.DecrementKey(testSeries[i], decremented);
testSeries[i] = decremented;
}
testSeries.Sort();
for (int i = 0; i < nodeCount - 2; i++)
{
min = tree.ExtractMin();
Assert.AreEqual(testSeries[i], min);
}
//IEnumerable tests.
Assert.AreEqual(tree.Count, tree.Count());
}
public static void DoTest()
{
int i = 37;
int numberOfItems = 100000;
BinomialMinHeap<int> firstHeap = new BinomialMinHeap<int>();
BinomialMinHeap<int> secondHeap = new BinomialMinHeap<int>();
BinomialMinHeap<int> thirdHeap = new BinomialMinHeap<int>();
Console.WriteLine("Begin Test.");
for (i = 37; i != 0; i = (i + 37) % numberOfItems)
{
if (i % 2 == 0)
secondHeap.Add(i);
else
firstHeap.Add(i);
}
firstHeap.Merge(secondHeap);
thirdHeap = firstHeap;
for (i = 1; i <= thirdHeap.Count(); i++)
{
var min = thirdHeap.ExtractMin();
Debug.Assert(min == i, "WRONG MIN");
}
Debug.Assert(secondHeap.IsEmpty(), "SECOND HEAP SHOULD BE EMPTY");
Console.WriteLine("END OF TEST");
Console.ReadLine();
}
public static void DoTest()
{
int i = 37;
int numberOfItems = 100000;
BinomialMinHeap <int> firstHeap = new BinomialMinHeap <int>();
BinomialMinHeap <int> secondHeap = new BinomialMinHeap <int>();
BinomialMinHeap <int> thirdHeap = new BinomialMinHeap <int>();
Console.WriteLine("Begin Test.");
for (i = 37; i != 0; i = (i + 37) % numberOfItems)
{
if (i % 2 == 0)
{
secondHeap.Add(i);
}
else
{
firstHeap.Add(i);
}
}
firstHeap.Merge(secondHeap);
thirdHeap = firstHeap;
for (i = 1; i <= thirdHeap.Count(); i++)
{
var min = thirdHeap.ExtractMin();
Debug.Assert(min == i, "WRONG MIN");
}
Debug.Assert(secondHeap.IsEmpty(), "SECOND HEAP SHOULD BE EMPTY");
Console.WriteLine("END OF TEST");
Console.ReadLine();
}
