Integration Testing Part 2

GetRandomUnusedPort.cs

public static int GetRandomUnusedPort()
{
    var listener = new TcpListener(IPAddress.Any, 0);
    listener.Start();
    var port = ((IPEndPoint)listener.LocalEndpoint).Port;
    listener.Stop();
    return port;
}

GetRavenDbServicePath,cs

        private static string GetRavenDbServicePath()
        {
            //HKLM\System\CurrentControlSet\Services\<%serviceNa me%>\ImagePath
            const string path = @"System\CurrentControlSet\Services\RavenDB";
            using (var reg = Registry.LocalMachine.OpenSubKey(path, false))
            {
                Debug.Assert(reg != null, "reg != null");
                return (string)reg.GetValue("ImagePath", null);
            }
        }

GetRavenDbServicePathcs

        private static string GetRavenDbServicePath()
        {
            const string path = @"System\CurrentControlSet\Services\RavenDB";
            using (var reg = Registry.LocalMachine.OpenSubKey(path, false))
            {
                Debug.Assert(reg != null, "reg != null");
                return (string)reg.GetValue("ImagePath", null);
            }
        }

StartRaven.cs

private Process Start(int portNumber)
{
    var path = Settings.RavenDbExecutablePath;

    var args = string.Format("/ram --set=Raven/Port=={0}", portNumber);

    var si = new ProcessStartInfo(path, args)
                    {
                        UseShellExecute = false,
                        CreateNoWindow = true
                    };

    Console.WriteLine("Starting RavenDB in-memory server on port {0}", portNumber);
    var process = Process.Start(si);
    return process;
}

StopRaven.cs

private void Stop(Process process)
{
    Console.WriteLine("Stopping RavenDB in-memory server");
            
    if (process.HasExited)
        return;

    if (process.StartInfo.RedirectStandardInput)
    {
        process.StandardInput.WriteLine("q");
        process.WaitForExit((int) TimeSpan.FromSeconds(5).TotalMilliseconds);

        if (process.HasExited)
            return;

        Console.WriteLine("RavenDB process appears to be hung. Attempting to kill it.");
    }

    process.Kill();
}