public void ReturnProccess1Through15()
{
var sut = new FizzBuzz();
List <int> testList = new List <int>(Enumerable.Range(1, 15));
string[] temp = { "1", "2", "Fizz", "4", "Buzz", "Fizz", "7", "8", "Fizz", "Buzz", "11", "Fizz", "13", "14", "FizzBuzz" };
List <string> expected = new List <string>(temp);
List <string> actual = sut.ProccessInput(testList);
CollectionAssert.AreEqual(expected, actual);
}