public void Clear()
{
_binaryMaxHeap.Add(5);
_binaryMaxHeap.Add(4);
_binaryMaxHeap.Add(9);
_binaryMaxHeap.Add(13);
Assert.NotZero(_binaryMaxHeap.Count);
_binaryMaxHeap.Clear();
Assert.Zero(_binaryMaxHeap.Count);
}
public void AddingAfterClearingHeap()
{
var heap = new BinaryMaxHeap <int>();
int maxHeapElement = 50000;
int minHeapElement = -50000;
int addedElements = 0;
//Adding every seventh number, then every fifth number,
//every third and at last all numbers
//NOTE: some items are added more than once
for (int i = 7; i > 0; i -= 2)
{
int el = minHeapElement;
while (el <= maxHeapElement)
{
heap.Add(el);
addedElements++;
el += i;
}
}
if (heap.Count != addedElements)
{
Assert.Fail();
}
heap.Clear();
if (heap.Count != 0)
{
Assert.Fail();
}
addedElements = 0;
//Adding every seventh number, then every fifth number,
//every third and at last all numbers
//NOTE: some items are added more than once
for (int i = 7; i > 0; i -= 2)
{
int el = minHeapElement;
while (el < maxHeapElement)
{
heap.Add(el);
addedElements++;
el += i;
}
}
if (heap.Count != addedElements)
{
Assert.Fail();
}
int removedElements = 0;
var max = heap.PeekMax();
while (!heap.IsEmpty)
{
if (max < heap.PeekMax())
{
Assert.Fail();
}
max = heap.PopMax();
removedElements++;
}
Assert.IsTrue(heap.IsEmpty &&
heap.Count == 0 &&
addedElements == removedElements);
}