public void Agcd_ShouldReturnCorrectAgcd(decimal a, decimal b, decimal expectedAgcd)
{
// Arrange
const decimal gcdTolerancePercent = 0m;
// Act
var agcd = ApproximateGcdCalculator.Agcd(gcdTolerancePercent, a, b);
// Assert
agcd.Should().BeApproximately(expectedAgcd, FloatingPointTolerance);
}
public void Agcd_ShouldReturnAgcdWithinTolerance(decimal a, decimal b, decimal expectedAgcd,
decimal allowedGcdTolerancePercent)
{
// Arrange
// Act
var agcd = ApproximateGcdCalculator.Agcd(allowedGcdTolerancePercent, a, b);
// Assert
agcd.Should().BeApproximately(expectedAgcd, FloatingPointTolerance);
}
public void Agcd_ShouldReturnAgcdWithinTolerance(decimal allowedGcdTolerancePercent,
decimal expectedAgcd, params double[] arguments)
{
// Arrange
var args = arguments.Select(d => (decimal)d).ToArray();
// Act
var agcd = ApproximateGcdCalculator.Agcd(allowedGcdTolerancePercent, args);
// Assert
agcd.Should().BeApproximately(expectedAgcd, FloatingPointTolerance);
}
// TODO[mk] generate random data
public void Agcd_ShouldReturnValueWhichDivideWithAllowedRemainder(decimal a, decimal b,
decimal allowedGcdTolerancePercent)
{
// Arrange
// Act
var agcd = ApproximateGcdCalculator.Agcd(allowedGcdTolerancePercent, a, b);
// Assert
var allowedRemainderA = a * allowedGcdTolerancePercent / 100m;
var allowedRemainderB = b * allowedGcdTolerancePercent / 100m;
var remainderA = a % agcd;
var remainderB = b % agcd;
remainderA.Should().BeLessOrEqualTo(allowedRemainderA);
remainderB.Should().BeLessOrEqualTo(allowedRemainderB);
}
/// <summary> /// Calculates Approximate Greatest Common Divisor (AGCD) /// of two non-negative real numbers with specified tolerance. /// </summary> /// <param name="tolerancePercent">Allowed tolerance to find AGCD.</param> public static decimal Agcd(decimal tolerancePercent, decimal a, decimal b) => ApproximateGcdCalculator.Agcd(tolerancePercent, a, b);