[Test] public virtual void PeekSucceedsWhenQueueIsNotEmpty()
{
var queue = NewQueueFilledWithSample();
var unique = Samples.CountAll();
for (int i = 0; i < SampleSize; ++i)
{
T value;
Assert.IsTrue(queue.Peek(out value));
AssertRetrievedResult(value, i);
queue.Remove();
var count = unique[value];
if (count > 1)
{
unique[value] = count - 1;
continue;
}
T next;
if (queue.Peek(out next))
{
Assert.That(next, Is.Not.EqualTo(value));
}
}
}