public void TestComputeDelta()
{
TimePeriodComputeConstGivenCalAddEval addMonth = new TimePeriodComputeConstGivenCalAddEval();
addMonth.TimeZone = TimeZoneInfo.Utc;
addMonth.TimeAbacus = TimeAbacusMilliseconds.INSTANCE;
TimePeriodAdder[] adders = new TimePeriodAdder[1];
adders[0] = new TimePeriodAdderMonth();
addMonth.Adders = adders;
addMonth.Added = new int[] { 1 };
addMonth.IndexMicroseconds = -1;
Assert.AreEqual(28 * 24 * 60 * 60 * 1000L, addMonth.DeltaAdd(Parse("2002-02-15T09:00:00.000"), null, true, null));
Assert.AreEqual(28 * 24 * 60 * 60 * 1000L, addMonth.DeltaSubtract(Parse("2002-03-15T09:00:00.000"), null, true, null));
TimePeriodDeltaResult result = addMonth.DeltaAddWReference(
Parse("2002-02-15T09:00:00.000"), Parse("2002-02-15T09:00:00.000"), null, true, null);
Assert.AreEqual(Parse("2002-03-15T09:00:00.000") - Parse("2002-02-15T09:00:00.000"), result.Delta);
Assert.AreEqual(Parse("2002-02-15T09:00:00.000"), result.LastReference);
result = addMonth.DeltaAddWReference(
Parse("2002-03-15T09:00:00.000"), Parse("2002-02-15T09:00:00.000"), null, true, null);
Assert.AreEqual(Parse("2002-04-15T09:00:00.000") - Parse("2002-03-15T09:00:00.000"), result.Delta);
Assert.AreEqual(Parse("2002-03-15T09:00:00.000"), result.LastReference);
result = addMonth.DeltaAddWReference(
Parse("2002-04-15T09:00:00.000"), Parse("2002-03-15T09:00:00.000"), null, true, null);
Assert.AreEqual(Parse("2002-05-15T09:00:00.000") - Parse("2002-04-15T09:00:00.000"), result.Delta);
Assert.AreEqual(Parse("2002-04-15T09:00:00.000"), result.LastReference);
// try future reference
result = addMonth.DeltaAddWReference(
Parse("2002-02-15T09:00:00.000"), Parse("2900-03-15T09:00:00.000"), null, true, null);
Assert.AreEqual(Parse("2002-03-15T09:00:00.000") - Parse("2002-02-15T09:00:00.000"), result.Delta);
Assert.AreEqual(Parse("2002-02-15T09:00:00.000"), result.LastReference);
// try old reference
result = addMonth.DeltaAddWReference(
Parse("2002-02-15T09:00:00.000"), Parse("1980-03-15T09:00:00.000"), null, true, null);
Assert.AreEqual(Parse("2002-03-15T09:00:00.000") - Parse("2002-02-15T09:00:00.000"), result.Delta);
Assert.AreEqual(Parse("2002-02-15T09:00:00.000"), result.LastReference);
// try different-dates
result = addMonth.DeltaAddWReference(
Parse("2002-02-18T09:00:00.000"), Parse("1980-03-15T09:00:00.000"), null, true, null);
Assert.AreEqual(Parse("2002-03-15T09:00:00.000") - Parse("2002-02-18T09:00:00.000"), result.Delta);
Assert.AreEqual(Parse("2002-02-15T09:00:00.000"), result.LastReference);
result = addMonth.DeltaAddWReference(
Parse("2002-02-11T09:00:00.000"), Parse("2980-03-15T09:00:00.000"), null, true, null);
Assert.AreEqual(Parse("2002-02-15T09:00:00.000") - Parse("2002-02-11T09:00:00.000"), result.Delta);
Assert.AreEqual(Parse("2002-01-15T09:00:00.000"), result.LastReference);
result = addMonth.DeltaAddWReference(
Parse("2002-04-05T09:00:00.000"), Parse("2002-02-11T09:01:02.003"), null, true, null);
Assert.AreEqual(Parse("2002-04-11T09:01:02.003") - Parse("2002-04-05T09:00:00.000"), result.Delta);
Assert.AreEqual(Parse("2002-03-11T09:01:02.003"), result.LastReference);
}
public void TestComputeDelta()
{
TimePeriodComputeConstGivenDeltaEval delta500 = new TimePeriodComputeConstGivenDeltaEval(500);
Assert.AreEqual(500, delta500.DeltaAdd(0, null, true, null));
Assert.AreEqual(500, delta500.DeltaSubtract(0, null, true, null));
TimePeriodComputeConstGivenDeltaEval delta10k = new TimePeriodComputeConstGivenDeltaEval(10000);
Assert.AreEqual(10000, delta10k.DeltaAdd(0, null, true, null));
Assert.AreEqual(10000, delta10k.DeltaSubtract(0, null, true, null));
// With current=2300, ref=1000, and interval=500, expect 2500 as next interval and 200 as solution
// the reference will stay the same since the computation is cheap without updated reference
TimePeriodDeltaResult result = delta500.DeltaAddWReference(2300, 1000, null, true, null);
Assert.AreEqual(200, result.Delta);
Assert.AreEqual(1000, result.LastReference);
result = delta500.DeltaAddWReference(2300, 4200, null, true, null);
Assert.AreEqual(400, result.Delta);
Assert.AreEqual(4200, result.LastReference);
result = delta500.DeltaAddWReference(2200, 4200, null, true, null);
Assert.AreEqual(500, result.Delta);
Assert.AreEqual(4200, result.LastReference);
result = delta500.DeltaAddWReference(2200, 2200, null, true, null);
Assert.AreEqual(500, result.Delta);
Assert.AreEqual(2200, result.LastReference);
result = delta500.DeltaAddWReference(2201, 2200, null, true, null);
Assert.AreEqual(499, result.Delta);
Assert.AreEqual(2200, result.LastReference);
result = delta500.DeltaAddWReference(2600, 2200, null, true, null);
Assert.AreEqual(100, result.Delta);
Assert.AreEqual(2200, result.LastReference);
result = delta500.DeltaAddWReference(2699, 2200, null, true, null);
Assert.AreEqual(1, result.Delta);
Assert.AreEqual(2200, result.LastReference);
result = delta500.DeltaAddWReference(2699, 2700, null, true, null);
Assert.AreEqual(1, result.Delta);
Assert.AreEqual(2700, result.LastReference);
result = delta10k.DeltaAddWReference(2699, 2700, null, true, null);
Assert.AreEqual(1, result.Delta);
Assert.AreEqual(2700, result.LastReference);
result = delta10k.DeltaAddWReference(2700, 2700, null, true, null);
Assert.AreEqual(10000, result.Delta);
Assert.AreEqual(2700, result.LastReference);
result = delta10k.DeltaAddWReference(2700, 6800, null, true, null);
Assert.AreEqual(4100, result.Delta);
Assert.AreEqual(6800, result.LastReference);
result = delta10k.DeltaAddWReference(23050, 16800, null, true, null);
Assert.AreEqual(3750, result.Delta);
Assert.AreEqual(16800, result.LastReference);
}