public void RateShouldCalculatedWithoutError(short numberPeriods, double payment, double presentValue, double futureValue, DueDate due, double guess = 0)
{
//Arrange
var rate = new Rate();
//Act
var exception = Record.Exception(() => rate.CalculateRate(numberPeriods, payment, presentValue, futureValue, due, guess));
//Assert
exception.Should().BeNull();
}
