public void RejectMixedSign()
{
Assert.Throws <Exception>(() => DecimalEx.AGMean(-3, 6));
Assert.Throws <Exception>(() => DecimalEx.AGMean(3, -6));
}
public void TestSpecialCases(decimal x, decimal y, decimal expected, decimal tolerance)
{
tolerance = Helper.GetScaledTolerance(expected, (int)tolerance, true);
Assert.That(DecimalEx.AGMean(x, y), Is.EqualTo(expected).Within(tolerance));
}