public void Test_Iterations(int startIteration, int numberOfIterations, double expected)
{
var pi = new Gregory_Leibniz();
pi.Iterations(startIteration, numberOfIterations);
Assert.That(Math.Abs(expected - pi.Calculate()), Is.LessThan(0.000001));
}
public void Test_NumberOfIterations(int iterations, double expectedDifference)
{
var pi = new Gregory_Leibniz();
pi.NumberOfIterations = iterations;
Assert.That(Math.Abs(3.14159265359 - pi.Calculate()), Is.LessThan(expectedDifference));
}