Testing web apps on Edge using CodedUI

11 Comments

1. 

   Naveen

   25 January 2017 at 11:11

   Hi MARCEL,

   I followed all the steps that you have specified above. It launches the application successfully, but throws an error “The playback failed to find the control with given search properties” for some controls on edge browser. On the other hand it works fine IE.

   Reply
2. 

   Brian Baker

   26 July 2017 at 16:26

   Thanks for the clue that the correct string is “MicrosoftEdge” and not just “Edge.” Seems like they would have posted that on the VS Marketplace page!

   Reply
3. 

   A Haberbosch

   31 October 2017 at 20:23

   Doesn’t seem to work for me. I’m getting null object error even though the webdriver and an edge window is opening. Any ideas?

   Reply
4. 

   Giampiero

   6 December 2017 at 15:19

   Hi Naveen,

   We got the same problem here. Did you find any solution so far?
   Thanks for your answer.

   Regards, Giampiero

   Reply
5. 

   Robert

   6 December 2017 at 15:27

   Hi Marcel

   We tried to launch the EDGE browser as shown in your example. But we get always an exception “System.NullReferenceException: ‘Object reference not set to an instance of an object.'”, regardless the URL we pass. The WebDriver is started and also the EDGE Browser…
   Our environment: VS2017, Win10, MicrosoftWebDriver matching Win OS version.
   What could be the reason for this?
   Cheers, Robert

   Reply
6. 

   Rag

   7 December 2017 at 21:09

   I am getting this. Value cannot be null.\r\nParameter name: windowHandle”. Below is my sample code:
   BrowserWindow.CurrentBrowser = “MicrosoftEdge”;
   var br = BrowserWindow.Launch(new Uri(login_url));

   I get the Edge browser opened but as soon as opening, I get the exception mentioned above.
   What am I doing wrong?

   Reply
7. 

   Gayatri Vijay

   20 December 2017 at 11:59

   Hi Marcel,

   I have been working on the codedui testing for the Edge browser, I have followed the above steps but it gives me a “System.NullReferenceException” on the line – browserWindow.Launch(new Uri(“”));
   The edge browser is launched but the url is not getting navigated to the browser.
   Could you please help in this.

   Below is the detailed error which I am getting
   Object reference not set to an instance of an object.
   System.NullReferenceException
   at Microsoft.VisualStudio.TestTools.UITest.Extension.CrossBrowser.CrossBrowserService.InitializeTopLevelWindow()
   at Microsoft.VisualStudio.TestTools.UITest.Extension.CrossBrowser.CrossBrowserService.InitializeCrossBrowserService(String[] args)
   at Microsoft.VisualStudio.TestTools.UITest.Extension.CrossBrowser.CrossBrowserService+c.b__3_3(String[] args)
   at Microsoft.VisualStudio.TestTools.UITest.Extension.CrossBrowser.CrossBrowserService.Launch(String[] args)
   at Microsoft.VisualStudio.TestTools.UITest.Extension.CrossBrowser.CrossBrowserFactory.Launch(String[] arguments)
   at Microsoft.VisualStudio.TestTools.UITesting.BrowserWindow.LaunchPrivate(String[] arguments)
   at Microsoft.VisualStudio.TestTools.UITesting.BrowserWindow+c__DisplayClass3_0.b__0()
   at Microsoft.VisualStudio.TestTools.UITesting.CodedUITestMethodInvoker.InvokeMethod(Func`1 function, UITestControl control, Boolean firePlaybackErrorEvent, Boolean logAsAction)
   at Microsoft.VisualStudio.TestTools.UITesting.BrowserWindow.Launch(String[] arguments)

   Thanks in advance

   Reply
8. 

   Andrew

   5 January 2018 at 22:52

   I have tried this but it always dies right after the edge window is invoked with an exception; “Object reference not set to an instance of an object.”
   I don’t have any problems running chromedriver or webdriver so I am puzzled why this is an issue with edge. Any insights?

   Reply
9. 

   shreya

   6 July 2018 at 23:26

   I am facing the same problem. I am getting the error “System.NullReferenceException: ‘Object reference not set to an instance of an object.'” as soon as I the Edge Browser opens up.

   I have tried multiple things, and still facing the error. Does any one know why is this happening?

   Reply
10. 

    Krishnan

    8 August 2018 at 03:27

    In Microsoft Edge browser for record and playback, objects not getting identified and gives a message as: “To test Windows Store apps, use the Coded UI Test project template for Windows Store apps under the Windows Store node.” Could you please help in this!

    Reply
    • 

      Marcel (Post author)

      1 September 2018 at 11:32

      You can not record and playback using edge. Recording is only supported on IE

      Reply