Sample testcase: SilverlightHealthcareSample.cs crash when running in FireFox 12.0

[kwee]

 Hi,

 I just installed the latest Telerik Testing Framework (2012.1.411) and changed a line in
 SilverlightHealthcareSample.cs so that I can use app.config to switch browsers.

 line 136 from the hard coded InternetExplorer to the app.config's browser settings
      | //            Manager.LaunchNewBrowser(BrowserType.InternetExplorer);
      |       Manager.LaunchNewBrowser(Manager.Settings.DefaultBrowser);

 When set to FireFox, the test crashes in the searchScroll.InvokeMethod line.

      | SilverlightHealthcareSample.cs:line 279 searchScroll.InvokeMethod(scrollVert, 2000);

Error Message:
      | Test method QuickStarts_VSTS_CS.SilverlightHealthcareSample.HealthCareDemo threw exception:
      | ArtOfTest.WebAii.Silverlight.ExecuteSilverlightCommandException: [Silverlight Extension Error] Details: System.NullReferenceException: Object reference not set to an instance of an object.
      |    at ArtOfTest.WebAii.Silverlight.AutomationMethod.ReturnsAutomationPeer()
      |    at Telerik.TestingFramework.XamlExtension.ClientProcessor.ProcessCommand(String command)
      |  

Error Stack Trace:
      | ArtOfTest.WebAii.Silverlight.SilverlightProxy.ExecuteSLCommand(SilverlightCommand cmd)
      | ArtOfTest.WebAii.Silverlight.SilverlightProxy.InvokeMethod(AutomationMethod method, IAutomationPeer peer)
      | ArtOfTest.WebAii.Silverlight.AutomationObject`1.InvokeMethod(AutomationMethod method, Object[] parameters)
      | QuickStarts_VSTS_CS.SilverlightHealthcareSample.HealthCareDemo() in C:\programs\x86\ttf2012.1.411\Samples\Testing Framework\QuickStarts_VSTS_CS\Tests\SilverlightHealthcareSample.cs: line 279
      |

I hope you can reproduce and find a fix.

Thanks,

[kwee]

Also confirmed same failure for IE 8.

[Plamen]

Hello Kwee,

Thank you for reporting the issue. To overcome this simply change the return type argument passed to the AutomationMethod constructor. Change it like this:

// Find the scroll viewer
ScrollViewer searchScroll = app.FindName("patientSearchScroller").Find.ByType<ScrollViewer>();

AutomationMethod scrollVert = new AutomationMethod("ScrollToVerticalOffset", typeof(object));
searchScroll.InvokeMethod(scrollVert, 2000);

// Assert scrolling position.
Assert.IsTrue(searchScroll.VerticalOffset == 2000);

You can also invoke the "ScrollToVerticalOffset" method without instantiating the AutomationMethod class. Here's the code:

// Find the scroll viewer
ScrollViewer searchScroll = app.FindName("patientSearchScroller").Find.ByType<ScrollViewer>();

// Invoke method
searchScroll.InvokeMethod("ScrollToVerticalOffset", 2000);

// Assert scrolling position.
Assert.IsTrue(searchScroll.VerticalOffset == 2000);

Give it a try and let me know if you require further assistance on this.

Greetings,
Plamen
the Telerik team