private static void ConfirmSubtotal(int function, double expected)
{
ValueEval[] values = new ValueEval[TEST_VALUES0.Length];
for (int i = 0; i < TEST_VALUES0.Length; i++)
{
values[i] = new NumberEval(TEST_VALUES0[i]);
}
AreaEval arg1 = EvalFactory.CreateAreaEval("C1:D5", values);
ValueEval[] args = { new NumberEval(function), arg1 };
ValueEval result = new Subtotal().Evaluate(args, 0, 0);
Assert.AreEqual(typeof(NumberEval), result.GetType());
Assert.AreEqual(expected, ((NumberEval)result).NumberValue, 0.0);
}