public static void ArrayToShortFailureTest()
{
List <int> testList = new List <int> {
1, 2, 3, 4, 5, 6, 7, 8, 9
};
string actual = ArrayProblemFunctions.GetNthFromEndEntry(testList, 11);
Assert.AreEqual(actual, "List not long enough, must contain at least 11 entires");
}
public static void CountFourthFromEndSuccessTest()
{
List <int> testList = new List <int> {
1, 2, 3, 4, 5, 6, 7, 8, 9
};
string actual = ArrayProblemFunctions.GetNthFromEndEntry(testList, 4);
Assert.AreEqual(actual, "6 is 4 entries from the end of the array");
}
public static void AskForNegativeIndexFromEndFailure()
{
List <int> testList = new List <int> {
1, 2, 3, 4, 5, 6, 7, 8, 9
};
string actual = ArrayProblemFunctions.GetNthFromEndEntry(testList, -3);
Assert.AreEqual(actual, "Invalid Input: Please enter an integer greater than '0'");
}
private static void Main(string[] args)
{
List <int> list = null;
Console.Clear();
if (!args.Any())
{
Console.WriteLine("Please enter a valid comma deliniated list of 32 bit integers\nType -help for help");
return;
}
if (args[0] == "-help")
{
ArrayProblemFunctions.HelpMessage();
return;
}
if (!ArrayProblemFunctions.IsListValid(args[0]))
{
Console.WriteLine("Please enter a valid comma deliniated list of 32 bit integers\nType -help for help");
Console.ReadLine();
return;
}
list = args[0].Split(',').Select(int.Parse).ToList();
if (args.Count() > 1)
{
int result;
if (!int.TryParse(args[1], out result))
{
Console.WriteLine(
"Please enter a valid 32 bit integer after the list to change the end of index count\nType -help for help");
Console.ReadLine();
return;
}
Console.WriteLine(ArrayProblemFunctions.GetNthFromEndEntry(list, Convert.ToInt16(args[1])));
}
else
{
Console.WriteLine(ArrayProblemFunctions.GetNthFromEndEntry(list));
}
Console.WriteLine("Press Enter To Exit");
Console.ReadLine();
}
