public void DeleteLotsOfMinsTest()
{
const int size = 1000;
var random = new Random(3456);
var heap = LazyBinomialHeap <int> .Empty;
for (var i = 0; i < size; i++)
{
heap = LazyBinomialHeap <int> .Insert(random.Next(size), heap);
}
Assert.IsFalse(heap.IsValueCreated);
var last = 0;
var count = 0;
while (!LazyBinomialHeap <int> .IsEmpty(heap))
{
var next = LazyBinomialHeap <int> .FindMin(heap);
heap = LazyBinomialHeap <int> .DeleteMin(heap);
Assert.IsTrue(last <= next);
last = next;
count++;
}
Assert.AreEqual(size, count);
}
public void FindMinTest()
{
var heap = Enumerable.Range(0, 8).Aggregate(LazyBinomialHeap <int> .Empty, (current, i) => LazyBinomialHeap <int> .Insert(i, current));
var min = LazyBinomialHeap <int> .FindMin(heap);
Assert.AreEqual(0, min);
}
public void RunModel(IModel obj)
{
var heap = LazyBinomialHeap <int> .Empty;
for (var i = 0; i < Size; i++)
{
var val = _random.Next(Size);
heap = LazyBinomialHeap <int> .Insert(val, heap);
Assert.IsFalse(heap.IsValueCreated);
}
Console.WriteLine(LazyBinomialHeapTests.DumpHeap(heap, true));
var last = 0;
var count = 0;
while (!LazyBinomialHeap <int> .IsEmpty(heap))
{
Assert.IsTrue(heap.IsValueCreated);
var next = LazyBinomialHeap <int> .FindMin(heap);
Assert.IsTrue(last <= next);
last = next;
heap = LazyBinomialHeap <int> .DeleteMin(heap);
count++;
}
Assert.AreEqual(Size, count);
}
public void FindMinEmptyTest()
{
var empty = LazyBinomialHeap <int> .Empty;
AssertThrows <ArgumentNullException>(() => LazyBinomialHeap <int> .FindMin(empty));
}
