private static double ValidateHeron(ISqrRt heronCalculator, ISqrRt standardCalculator, double error)
{
// A function to validate the accuracy of the Heron calculation vs. the internal Math.Sqrt function
double resultHeron;
double resultStandard;
int resultTrue = 0;
List <bool> resultList = new List <bool>();
List <double> errorList = new List <double>();
// Create random sample data to use for testing square root methods
Random r = new Random();
List <int> listNumbers = new List <int>();
for (int i = 1; i < 10001; i++)
{
listNumbers.Add(r.Next(1, 100000));
}
// Run both square root methods on each of the random sample data numbers
foreach (var num in listNumbers)
{
resultHeron = heronCalculator.GetSquareRoot(num);
resultStandard = standardCalculator.GetSquareRoot(num);
if (Math.Abs(resultHeron - resultStandard) < error)
{
resultList.Add(true);
errorList.Add(Math.Abs(resultHeron - resultStandard));
resultTrue++;
}
else
{
resultList.Add(false);
throw new Exception("The difference between the two methods is not within the accepted error rate.");
}
}
return(resultTrue);
}
public void ValidateAndCompareCalculationsWithinErrorLimits(ISqrRt heronCalculator, ISqrRt standardCalculator, double error)
{
// Arrange
double resultHeron;
double resultStandard;
bool resultComparison = false;
// Create random sample data to use for testing square root methods
Random r = new Random();
List <int> listNumbers = new List <int>();
for (int i = 1; i < 10001; i++)
{
listNumbers.Add(r.Next(1, 100000));
}
// Act
// Run both square root methods on each of the random sample data numbers
foreach (var num in listNumbers)
{
resultHeron = heronCalculator.GetSquareRoot(num);
resultStandard = standardCalculator.GetSquareRoot(num);
resultComparison = CompareRoots(resultHeron, resultStandard, error);
}
// Assert
Assert.IsTrue(resultComparison);
}
