public void ReturnsCorrectFizzBuzzTextWhenParametersAreValid(int fizzFactor, int buzzFactor, int lastNumber, string expected)
{
// Act
_service.GenerateFizzBuzzText(fizzFactor, buzzFactor, lastNumber);
// Assert
Assert.That(_service.GenerateFizzBuzzText(fizzFactor, buzzFactor, lastNumber), Is.EqualTo(expected));
}