/// <summary>
/// Called when the metric command is changed by "delta" units at time "time"
/// via user "user"
/// </summary>
/// <param name="time">the time of the event</param>
/// <param name="command">the metric that is updated, e.g., the operation name</param>
/// <param name="user">the user that updated the metric</param>
/// <param name="delta">the amount of change in the metric, e.g., +1</param>
public virtual void RecordMetric(long time, string command, string user, long delta
)
{
RollingWindow window = GetRollingWindow(command, user);
window.IncAt(time, delta);
}
public virtual void TestReorderedAccess()
{
RollingWindow window = new RollingWindow(WindowLen, BucketCnt);
long time = 2 * WindowLen + BucketLen * 3 / 2;
window.IncAt(time, 5);
time++;
NUnit.Framework.Assert.AreEqual("The sum of rolling window does not reflect the recent update"
, 5, window.GetSum(time));
long reorderedTime = time - 2 * BucketLen;
window.IncAt(reorderedTime, 6);
NUnit.Framework.Assert.AreEqual("The sum of rolling window does not reflect the reordered update"
, 11, window.GetSum(time));
time = reorderedTime + WindowLen;
NUnit.Framework.Assert.AreEqual("The sum of rolling window does not reflect rolling effect"
, 5, window.GetSum(time));
}
public virtual void TestBasics()
{
RollingWindow window = new RollingWindow(WindowLen, BucketCnt);
long time = 1;
NUnit.Framework.Assert.AreEqual("The initial sum of rolling window must be 0", 0,
window.GetSum(time));
time = WindowLen + BucketLen * 3 / 2;
NUnit.Framework.Assert.AreEqual("The initial sum of rolling window must be 0", 0,
window.GetSum(time));
window.IncAt(time, 5);
NUnit.Framework.Assert.AreEqual("The sum of rolling window does not reflect the recent update"
, 5, window.GetSum(time));
time += BucketLen;
window.IncAt(time, 6);
NUnit.Framework.Assert.AreEqual("The sum of rolling window does not reflect the recent update"
, 11, window.GetSum(time));
time += WindowLen - BucketLen;
NUnit.Framework.Assert.AreEqual("The sum of rolling window does not reflect rolling effect"
, 6, window.GetSum(time));
time += BucketLen;
NUnit.Framework.Assert.AreEqual("The sum of rolling window does not reflect rolling effect"
, 0, window.GetSum(time));
}