public void WorksWithSinus()
{
// arrange
Func <double, double> func = Math.Sin;
// act
double actual = IntegralCalculus.Calculate(func, 0, Math.PI, 0.01);
// assert
Assert.InRange(actual, 1.99, 2.01);
}
public void WorksWithPolynomialFunction()
{
// arrange
Func <double, double> func = PolynomialFunction;
// act
double actual = IntegralCalculus.Calculate(func, 5.4, 6.7, 0.01);
// assert
Assert.InRange(actual, 162.75975, 162.77975);
}