public void Should_Return_Fizz()
{
var fizzBuzz = new FizzBuzz();
int validInt = 3;
int invalidInt = 5;
bool validResult = fizzBuzz.Fizz(validInt);
bool invalidResult = fizzBuzz.Fizz(invalidInt);
Assert.AreEqual(true, validResult);
Assert.AreEqual(false, invalidResult);
}