asked on

Hopefully "fun" problem to solve - matrix of test values

I need some help conceptualizing (and realizing) a matrix of test values.

I want to test all possible permutations for a series of 6 permissions. Each permission can be true or false.

CanCreate,CanRead,CanUpdate,CanDelete,CanUseWebservice,CanRunReports

I think the math is 2^6 or 64 different combinations possible:

1,0,0,0,0,0

would represent granting "Can Create" permission and no permissions on the rest.

1,1,0,0,0,0 would grant CanCreate, CanRead and no on the rest.

I want to cover every combination.

I am looking to create a simple matrix for the combinations, just a CSV file of sorts.

Here is what I have so far, but what is the correct way to do this so that no test values repeat and all combinations are represented?

If I find the answer I'll return here and post it. Until then I await your answer, gurus!

private void buttonGenerateCSV_Click(object sender, EventArgs e)
        {
            string[] headervals = textBoxHeaderValues.Text.Split(',');
            string[] validvals = textBoxValidValues.Text.Split(',');

            foreach (string hs in headervals)
            {
                textBoxCSV.Text += hs;
                foreach (string s in validvals)
                {
                    textBoxCSV.Text += s;
                }
            }

        }

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Mike Tomlinson

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Tom Knowlton

ASKER

Here was my eventual solution:

using System;
using System.Linq;
using System.Windows.Forms;

namespace CSharpCodeGenAndSamples
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private string ReturnDecAsBinStringWithPadding(int dectoconvert, int maxpadding)
        {
            string binValue = Convert.ToString(dectoconvert, 2);

            int padlen = binValue.Length;

            while (padlen < maxpadding)
            {
                binValue = "0" + binValue;
                padlen++;
            }

            return binValue;
        }

        private int PowerOf(int num, int basenum)
        {
            int newnum = num;

            for (int i = 1; i < basenum; i++)
            {
                newnum *= num;
            }

            return newnum;
        }

        private string InjectCharsIntoExistingString(string origstring, string chartoinject)
        {
            int strlen = origstring.Length;

            string newstring = "";

            for (int i = 0; i < strlen; i++)
            {
                newstring += origstring[i] + chartoinject;
            }

            newstring = newstring.Substring(0, newstring.Length - 1);
            return newstring;
        }

        private void ButtonGenerateCsvClick(object sender, EventArgs e)
        {
            string[] headervals = textBoxHeaderValues.Text.Split(',');
            string[] validvals = textBoxValidValues.Text.Split(',');

            int countofheaders = headervals.Count();
            int countofvalidvals = validvals.Count();
            int power = PowerOf(countofvalidvals, countofheaders);

            string headercols = headervals.Aggregate("", (current, hs) => current + (hs + ","));

            headercols = headercols.Substring(0, headercols.Length - 1);

            textBoxCSV.Text += headercols + Environment.NewLine;

            for (int i = 0; i < power; i++)
            {
                string binasstring = ReturnDecAsBinStringWithPadding(i, 6);
                string arrayofbinvals = InjectCharsIntoExistingString(binasstring, ",");

                textBoxCSV.Text += arrayofbinvals + Environment.NewLine;
                //string[] newarrayofbinvals = arrayofbinvals.Split(',');                
            }


            foreach (string s in validvals)
            {
                textBoxCSV.Text += s;
                foreach (string hs in headervals)
                {
                    textBoxCSV.Text += hs;
                }
            }
        }
    }
}

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Tom Knowlton

ASKER

Thank you for the example and for your time spent on this!

Tom

Mike Tomlinson

No problem. Definitely many ways to approach this problem...

Hopefully &quot;fun&quot; problem to solve - matrix of test values

Hopefully "fun" problem to solve - matrix of test values