public void AddingAfterClearingHeap() { var heap = new BinomialMinHeap <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 min = heap.PeekMin(); while (!heap.IsEmpty) { if (min > heap.PeekMin()) { Assert.Fail(); } min = heap.PopMin(); removedElements++; } Assert.IsTrue(heap.IsEmpty && heap.Count == 0 && addedElements == removedElements); }