public void AccumulatedValuesAggregatesCorrectlyForEmptyDataSet()
{
// ARRANGE
AccumulatedValues accumulatorAverage = new AccumulatedValues("Metric1", AggregationType.Avg);
AccumulatedValues accumulatorSum = new AccumulatedValues("Metric1", AggregationType.Sum);
AccumulatedValues accumulatorMin = new AccumulatedValues("Metric1", AggregationType.Min);
AccumulatedValues accumulatorMax = new AccumulatedValues("Metric1", AggregationType.Max);
// ACT
double avg = accumulatorAverage.CalculateAggregation(out long avgCount);
double sum = accumulatorSum.CalculateAggregation(out long sumCount);
double min = accumulatorMin.CalculateAggregation(out long minCount);
double max = accumulatorMax.CalculateAggregation(out long maxCount);
// ASSERT
Assert.AreEqual(0, avg);
Assert.AreEqual(0, sum);
Assert.AreEqual(0, min);
Assert.AreEqual(0, max);
Assert.AreEqual(0, avgCount);
Assert.AreEqual(0, sumCount);
Assert.AreEqual(0, minCount);
Assert.AreEqual(0, maxCount);
}
public void AccumulatedValuesAggregatesCorrectly()
{
// ARRANGE
double[] accumulatedValues = { 1d, 3d };
AccumulatedValues accumulatorAverage = new AccumulatedValues("Metric1", AggregationType.Avg);
AccumulatedValues accumulatorSum = new AccumulatedValues("Metric1", AggregationType.Sum);
AccumulatedValues accumulatorMin = new AccumulatedValues("Metric1", AggregationType.Min);
AccumulatedValues accumulatorMax = new AccumulatedValues("Metric1", AggregationType.Max);
// ACT
ArrayHelpers.ForEach(accumulatedValues, accumulatorAverage.AddValue);
ArrayHelpers.ForEach(accumulatedValues, accumulatorSum.AddValue);
ArrayHelpers.ForEach(accumulatedValues, accumulatorMin.AddValue);
ArrayHelpers.ForEach(accumulatedValues, accumulatorMax.AddValue);
double avg = accumulatorAverage.CalculateAggregation(out long avgCount);
double sum = accumulatorSum.CalculateAggregation(out long sumCount);
double min = accumulatorMin.CalculateAggregation(out long minCount);
double max = accumulatorMax.CalculateAggregation(out long maxCount);
// ASSERT
Assert.AreEqual(2d, avg);
Assert.AreEqual(4d, sum);
Assert.AreEqual(1d, min);
Assert.AreEqual(3d, max);
Assert.AreEqual(2, avgCount);
Assert.AreEqual(2, sumCount);
Assert.AreEqual(2, minCount);
Assert.AreEqual(2, maxCount);
}
