public void DeleteLotsOfMinsTest()
{
const int size = 1000;
var random = new Random(3456);
var heap = BinomialHeap <int> .Empty;
for (var i = 0; i < size; i++)
{
heap = BinomialHeap <int> .Insert(random.Next(size), heap);
}
var last = 0;
var count = 0;
while (!BinomialHeap <int> .IsEmpty(heap))
{
var next = BinomialHeap <int> .FindMin(heap);
heap = BinomialHeap <int> .DeleteMin(heap);
Assert.IsTrue(last <= next);
last = next;
count++;
}
Assert.AreEqual(size, count);
}
public void DeleteMinTest()
{
var heap = Enumerable.Range(0, 8).Aggregate(BinomialHeap <int> .Empty, (current, i) => BinomialHeap <int> .Insert(i, current));
heap = BinomialHeap <int> .DeleteMin(heap);
Assert.AreEqual("[1]; [2, [3]]; [4, [6, [7]], [5]]", DumpHeap(heap));
}
public void DeleteMinEmptyTest()
{
var empty = BinomialHeap <int> .Empty;
AssertThrows <ArgumentNullException>(() => BinomialHeap <int> .DeleteMin(empty));
}