public void Add()
{
// Create a new heap.
ConcurrentBinaryMinHeap <int> heap = new ConcurrentBinaryMinHeap <int>();
// Ensure that the heap is empty.
Assert.That(heap.Count, Is.EqualTo(0));
// Call Add() to insert a new element to the queue as a PriorityValuePair.
heap.Add(new PriorityValuePair <int>(1f, 2));
// Expect a value of 2 on the first item to be removed after adding it.
Assert.That(heap.PopValue(), Is.EqualTo(2));
}