public void BasicStatisticTrackerTest()
{
AList alist = NewList();
AListStatisticTracker <T> tracker = alist.StatisticTracker(_selector);
double sum = 0, sumOfSquares = 0;
for (int i = 0; i < 250; i++)
{
Add(alist, i, _r.Next(alist.Count));
sum += i;
sumOfSquares += i * i;
Assert.AreEqual(sum, tracker.Statistic.SumTotal);
Assert.AreEqual(sumOfSquares, tracker.Statistic.SumOfSquares);
}
}
public void CanTrackMultipleLists()
{
AList alist1 = NewList(), alist2 = NewList();
AListStatisticTracker <T> tracker = alist1.StatisticTracker(_selector);
alist2.AddObserver(tracker);
double sum = 0, sumOfSquares = 0;
for (int i = 0; i < 250; i++)
{
var alist = (i & 1) == 0 ? alist1 : alist2;
Add(alist, i, _r.Next(alist.Count));
sum += i;
sumOfSquares += i * i;
Assert.AreEqual(sum, tracker.Statistic.SumTotal);
Assert.AreEqual(sumOfSquares, tracker.Statistic.SumOfSquares);
}
}
