Is it possible to use Selenium with C# windows Form that contains a WebBrowser object?

Question

I\'m wondering if it\'s possible to use Selenium with a C# Windows Form that contains a WebBrowser object.

I\'m using selenium and I\'m able to create test cases

Answer 1

I think you can, but you might have to use Selenium RC. It has a .Net version of the Selenium API.

Answer 2

I haven't done this with selenium, but I did the same thing with WatiN when I wanted to automate InfoPath. The approach that I took was as follows:

1. Kill off all the processes that have that name in my case it was "infopath"

   foreach (Process proc in Process.GetProcessesByName("infopath"))
   {    
     proc.Kill();
   }
   

2. Launch your test application call Process.GetProcessesByName to get all the process id's then get the window handle of the first as there should only be one process running.

   Process[] updatedInfopathProcessList = Process.GetProcessesByName("infopath");
   if (updatedInfopathProcessList[0].Id == 0)
   {
       throw new ApplicationException("No Infopath processes exist");
   }
   infopathProcessId = updatedInfopathProcessList[0].Id;
   infopathHwnd = updatedInfopathProcessList[0].MainWindowHandle;
   

3. Now that I had the window handle, I get the IHTMLDocument2 to automate against with WatiN.

   InternalHTMLDOMDocument = IEDom.IEDOMFromhWnd(this.hWnd);
   

The real rubber hits the road in the IEDom class ... code is below ...

    namespace ItiN
    {
        public class IEDom
        {

            internal static IHTMLDocument2 IEDOMFromhWnd(IntPtr hWnd)
            {
                Guid IID_IHTMLDocument2 = new Guid("626FC520-A41E-11CF-A731-00A0C9082637");

                Int32 lRes = 0;
                Int32 lMsg;
                Int32 hr;

                //if (IsIETridentDlgFrame(hWnd))
                //{
                    if (!IsIEServerWindow(hWnd))
                    {
                        // Get 1st child IE server window
                        hWnd = NativeMethods.GetChildWindowHwnd(hWnd, "Internet Explorer_Server");
                    }

                    if (IsIEServerWindow(hWnd))
                    {
                        // Register the message
                        lMsg = NativeMethods.RegisterWindowMessage("WM_HTML_GETOBJECT");
                        // Get the object
                        NativeMethods.SendMessageTimeout(hWnd, lMsg, 0, 0, NativeMethods.SMTO_ABORTIFHUNG, 1000, ref lRes);
                        if (lRes != 0)
                        {
                            // Get the object from lRes
                            IHTMLDocument2 ieDOMFromhWnd = null;
                            hr = NativeMethods.ObjectFromLresult(lRes, ref IID_IHTMLDocument2, 0, ref ieDOMFromhWnd);
                            if (hr != 0)
                            {
                                throw new COMException("ObjectFromLresult has thrown an exception", hr);
                            }
                            return ieDOMFromhWnd;
                        }
                    }
               // }
                return null;
            }

            internal static bool IsIETridentDlgFrame(IntPtr hWnd)
            {
                return UtilityClass.CompareClassNames(hWnd, "Internet Explorer_TridentDlgFrame");
            }

            private static bool IsIEServerWindow(IntPtr hWnd)
            {
                return UtilityClass.CompareClassNames(hWnd, "Internet Explorer_Server");
            }
        }
    }

Sorry this is not for selenium, but it is how I solved the problem for WatiN so I hope it can help. The code is here http://itin.codeplex.com/, and I also think that this has been added to WatiN as well.

Answer 3

In theory it would work as long Selenium can inject JS into the browser component. You would need to use the *custom command and pass in the executable that you want Selenium to start up and then it will try do what you want.

Answer 4

We hacked the selenium webdriver code slightly to attach to an embedded IE instance inside a windows app. http://bradbax.blogspot.ca/2013/07/driving-embedded-wpf-browser-with.html