A Simple Speedtest Application

The purpose of this code is the detect how slow is your connection downloading a file from a site. First of all, you have to create a file with a known size: for that you can use fsutil in the prompt (see another post in this blog for info).

When yo do put your file in a webserver (or you can use my url), we can create the code to check the connection speed.

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;

namespace SpeedTest
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.Title = "A simple speed test connection for your app";

            // the URL to download a file from
            Uri URL = new Uri(
            "https://puresourcecode.com/file.axd?file=/SpeedTest/1024kb.txt"
            );
            WebClient wc = new WebClient();

            Console.WriteLine("Simple speedtest");
            Console.WriteLine("----------------");
            Console.WriteLine("Will test your download rate. " + 
                              "Press any key to begin.");
            Console.ReadKey();

            Console.WriteLine("\nDownloading file: 1024kb.txt...");
            Console.WriteLine("From https://puresourcecode.com");
            Console.WriteLine("Note: This file will automatically " + 
                              "be deleted after the test.");

            // get current tickcount 
            double starttime = Environment.TickCount;

            // download file from the specified URL, 
            // and save it to C:\speedtest.txt
            // in your project change the path of the following line
            wc.DownloadFile(URL, @"C:\speedtest.txt");

            // get current tickcount
            double endtime = Environment.TickCount;

            // how many seconds did it take?
            // we are calculating this by subtracting starttime from
            // endtime and dividing by 1000 (since the tickcount is in 
            // miliseconds 1000 ms = 1 sec)
            double secs = Math.Floor(endtime - starttime) / 1000;

            // calculate download rate in kb per sec.
            // this is done by dividing 1024 by the number of seconds it
            // took to download the file (1024 bytes = 1 kilobyte)
            double kbsec = Math.Round(1024 / secs);

            Console.WriteLine("\nCompleted. Statistics:\n");

            Console.WriteLine("1mb download: \t{0} secs", secs);
            Console.WriteLine("Download rate: \t{0} kb/sec", kbsec);

            Console.WriteLine("\nPress any key to exit...");
            Console.Read();
            Console.WriteLine("Deleting file...");
            try
            {
                // delete downloaded file
                System.IO.File.Delete(@"C:\speedtest.txt");
                Console.WriteLine("Done.");
            }
            catch
            {
                Console.WriteLine("Couldn't delete download file.");
                Console.WriteLine("To delete the file yourself.");
                Console.ReadKey();
            }
        }

    }
}

Happy coding!