public void CanCalculateDifferenceDecimalsWithHighPrecision()
{
var expected = 95217168582.206969750145956m;
var actual = 95217168582.20696975014595521m;
var result = Numerics.Difference(expected, actual, ToleranceMode.Linear);
Assert.That(result, Is.EqualTo(0.00000000000000079M));
}
public void CanCompareMidRangeDecimalAndDouble()
{
var expected = 3.14159m;
var actual = 2.718281d;
var result = Numerics.Difference(expected, actual, ToleranceMode.Linear);
Assert.That(result, Is.EqualTo(0.423309));
}
public void CanCompareDecimalAndHighDouble()
{
var expected = Convert.ToDouble(decimal.MaxValue) * 1.1;
var actual = decimal.MaxValue;
var result = Numerics.Difference(expected, actual, ToleranceMode.Linear);
Assert.That(result, Is.EqualTo(7.9228162514264408E+27));
}
public void DifferenceForNonNumericTypesReturnsNaN()
{
Assert.That(Numerics.Difference(new object(), new object(), tenPercent.Mode), Is.EqualTo(double.NaN));
}
public void CanCalculatePercentDifference()
{
Assert.That(Numerics.Difference(10000m, 8500m, tenPercent.Mode), Is.EqualTo(15));
Assert.That(Numerics.Difference(10000m, 11500m, tenPercent.Mode), Is.EqualTo(-15));
}
public void CanCalculateAbsoluteDifference()
{
Assert.That(Numerics.Difference(10000m, 9500m, absoluteTolerance.Mode), Is.EqualTo(500m));
Assert.That(Convert.ToDouble(Numerics.Difference(0.1, 0.05, absoluteTolerance.Mode)), Is.EqualTo(0.05).Within(0.00001));
Assert.That(Convert.ToDouble(Numerics.Difference(0.1, 0.15, absoluteTolerance.Mode)), Is.EqualTo(-0.05).Within(0.00001));
}