public void Constant()
{
_svr.CreateDataBase(_fn);
CalculationSeries c = new CalculationSeries();
c.TimeInterval = TimeInterval.Daily;
c.Name = "constant_series";
c.Expression = "15.0";
_db.AddSeries(c);
DateTime t1 = new DateTime(2014, 10, 1);
DateTime t2 = new DateTime(2014, 10, 5);
c.Calculate(t1, t2);
Assert.AreEqual(5, c.Count);
Assert.AreEqual(15, c[0].Value, 0.001);
}
