public void IntervalQueueCorrectlyDequeues()
{
TimeSpan windowSize = TimeSpan.FromDays(5);
IntervalQueue<QueueItem> queue = new IntervalQueue<QueueItem>(windowSize, "EventTime");
DateTime initialDate = DateTime.UtcNow;
int initialValue = 0;
queue.Enqueue(new QueueItem()
{
EventTime = initialDate.AddDays(1),
Value = initialValue++,
});
QueueItem expected = new QueueItem()
{
EventTime = initialDate.AddDays(2),
Value = initialValue++,
};
queue.Enqueue(expected);
queue.Enqueue(new QueueItem()
{
EventTime = initialDate.AddDays(3),
Value = initialValue++,
});
QueueItem overflow;
queue.TryDequeue(out overflow);
QueueItem actual;
queue.TryDequeue(out actual);
Assert.Equal(expected, actual);
}
public void IntervalQueueWillRespectWindowSize()
{
TimeSpan windowSize = TimeSpan.FromDays(2.5);
IntervalQueue<QueueItem> queue = new IntervalQueue<QueueItem>(windowSize, "EventTime");
// Data Set
DateTime initialDate = DateTime.UtcNow;
double timeIncrement = 1;
List<QueueItem> dataSet = new List<QueueItem>();
for (int i = 0; i < 10; i++)
{
dataSet.Add(new QueueItem()
{
EventTime = initialDate.AddDays((double)i * timeIncrement),
Value = i
});
}
List<QueueItem> expected = dataSet.Skip(7).ToList();
foreach (QueueItem item in dataSet)
{
queue.Enqueue(item);
}
List<QueueItem> actual = queue.ToList();
Assert.Equal<QueueItem>(expected, actual);
}