public void TestAllOperationsOnRandomNumbers()
{
int count = 10000; //MIN IS 100
int idCounter = 1;
List <Plane> planes = new List <Plane>(count);
List <Plane> removed = new List <Plane>(count);
PairingHeap <Plane, int> queue = new PairingHeap <Plane, int>();
Random random = new Random();
int addCount = 0, succAddCount = 0,
changePriorityCount = 0, succChangePriorityCount = 0,
deleteCount = 0, succDeleteCount = 0,
compareCheck = 0;
String history = "";
int deleteFileNumber = 1;
for (int i = 0; i < count; i++)
{
int number = random.Next(0, 100 * count);
if (number % 5 == 0 || number % 5 == 3 || number % 5 == 4)
{
addCount++;
Plane newPlane = new Plane();
newPlane.SetInternationalID("id" + idCounter);
idCounter++;
newPlane.SetPriority(random.Next(11));
if (queue.Add(newPlane))
{
succAddCount++;
history += "ADDED: " + newPlane.GetInternationalID() + " with priority " + newPlane.GetPriority() + "\r\n";
history += "ROOT: " + queue.Root.Data.GetInternationalID() + " with priority "
+ queue.Root.Data.GetPriority() + "\r\n";
planes.Add(newPlane);
}
}
else
if (number % 5 == 1 || number % 5 == 2)
{
deleteCount++;
if (planes.Count > 0)
{
Plane toDelete = queue.DeleteMin();
if (toDelete != null)
{
history += "" + toDelete.GetInternationalID() + "\r\n";
succDeleteCount++;
planes.Remove(toDelete);
removed.Add(toDelete);
history += "DELETED: " + toDelete.GetInternationalID() + " with priority " + toDelete.GetPriority() + "\r\n";
if (queue.Root != null)
{
history += "ROOT: " + queue.Root.Data.GetInternationalID() + " with priority "
+ queue.Root.Data.GetPriority() + "\r\n";
}
else
{
history += "EMPTY HEAP\r\n";
}
}
}
if (removed.Count > 0)
{
Plane errorneousPlane = queue.Delete(removed[random.Next(0, removed.Count)]); // SHOULD DO NOTHING
if (errorneousPlane != null)
{
history += "???DELETED: " + errorneousPlane.GetInternationalID()
+ " with priority " + errorneousPlane.GetPriority() + "\r\n";
if (queue.Root != null)
{
history += "ROOT: " + queue.Root.Data.GetInternationalID() + " with priority "
+ queue.Root.Data.GetPriority() + "\r\n";
}
else
{
history += "EMPTY HEAP\r\n";
}
}
}
}
if (count >= 100 && number % 100 == 0)
{
changePriorityCount++;
if (planes.Count > 0)
{
int newPriority = random.Next(11);
int randomIndex = random.Next(0, planes.Count);
if (newPriority != planes[randomIndex].GetPriority())
{
Assert.IsTrue(queue.ChangePriority(planes[randomIndex],
newPriority));
planes[randomIndex].SetPriority(newPriority);
succChangePriorityCount++;
}
}
if (removed.Count > 0)
{
int newPriority = random.Next(11);
int randomIndex = random.Next(0, removed.Count);
if (newPriority != removed[randomIndex].GetPriority())
{
Assert.IsFalse(queue.ChangePriority(removed[randomIndex],
newPriority));
}
}
if (planes.Count > 0)
{
int randomIndex = random.Next(0, planes.Count);
Plane randomDelete = queue.Delete(planes[randomIndex]);
if (randomDelete != null)
{
planes.RemoveAt(randomIndex);
removed.Add(randomDelete);
}
deleteFileNumber++;
}
compareCheck++;
File.WriteAllText("D:\\.NET Projects\\PlaneDepartureTracking\\PlaneDepartureTrackingMSTest\\pairingheapTestHistory.txt",
history);
foreach (Plane plane in planes)
{
Assert.IsTrue(queue.Contains(plane));
}
foreach (Plane plane in removed)
{
Assert.IsFalse(queue.Contains(plane));
}
}
}
String treeTraversalLevelOrder = queue.TraverseLevelOrder();
File.WriteAllText("D:\\.NET Projects\\PlaneDepartureTracking\\PlaneDepartureTrackingMSTest\\pairingheapTestLevelOrder.txt",
treeTraversalLevelOrder);
String treeTraversalInOrder = queue.TraverseInOrder();
File.WriteAllText("D:\\.NET Projects\\PlaneDepartureTracking\\PlaneDepartureTrackingMSTest\\pairingheapTestInOrder.txt",
treeTraversalInOrder);
String checkInfo = "ADD checks: " + addCount + "\r\nSuccessfully added elements: " + succAddCount +
"\r\nCHANGE PRIORITY checks: " + changePriorityCount + "\r\nSuccessfully changed priorities: " + succChangePriorityCount +
"\r\nDELETE checks: " + deleteCount + "\r\nSuccessfully deleted elements: " + succDeleteCount +
"\r\nQueue-List comparisons: " + compareCheck;
File.WriteAllText("D:\\.NET Projects\\PlaneDepartureTracking\\PlaneDepartureTrackingMSTest\\pairingheapTestStats.txt",
checkInfo);
File.WriteAllText("D:\\.NET Projects\\PlaneDepartureTracking\\PlaneDepartureTrackingMSTest\\pairingheapTestHistory.txt",
history);
}