Last Updated: 24 Mar 2020 08:36 by ADMIN

1. Create local data for a test.

2. Data bind the same test to external data source.

3. Remove the data binding to the external source.

At this point I can't use the local data for data driven test steps or find expressions.


The workaround is to right click on the test and go to Properties. Then enable both DataEnabled and DefaultToGrid.

Last Updated: 17 Mar 2020 08:01 by ADMIN

When you are in recording mode (with the Recorder attached to the browser) and execute a Test as Step with Run -> From Here or Selected option, the dialogs in that test are not handled. 

The dialogs are handled, if you open the test from the Test as Step and use the same options Run -> From Here or Selected for the test itself.


Pending Review
Last Updated: 13 Mar 2020 13:45 by Claire

When I close the Remote Desktop connection, the Test Runner on my VM reconnects to the Windows session successfully, but it does not set the correct resolution. 

It seems to default to a base resolution and not the one from Change Console Resolution settings in the Test Runner.


Last Updated: 12 Mar 2020 14:54 by ADMIN

While making changes to an element's find logic, I received an error. 

After this error happened, it broke every element and then I had to relaunch test studio to get rid of this compiler error.

[12/09 10:21:29,Telerik.TestStudio.exe(6040:27),ProjectModel] Project.RegenerateElementsCode() : EXCEPTION! (see below)
     Situation: Trouble generating project elements file on first attempt
     Outer Exception Type: System.InvalidOperationException
     Message: Collection was modified; enumeration operation may not execute.
     HRESULT: 0x80131509 (Official ID (if app.) = COR_E_INVALIDOPERATION, Error Bit = FAILED, Facility = FACILITY_URT, Code = 5385)
     Call Stack:
          at System.Collections.ArrayList.ArrayListEnumeratorSimple.MoveNext()
          at Microsoft.CSharp.CSharpCodeGenerator.GenerateNestedTypes(CodeTypeDeclaration e)
          at Microsoft.CSharp.CSharpCodeGenerator.GenerateType(CodeTypeDeclaration e)
          at Microsoft.CSharp.CSharpCodeGenerator.System.CodeDom.Compiler.ICodeGenerator.GenerateCodeFromType(CodeTypeDeclaration e, TextWriter w, CodeGeneratorOptions o)
          at Microsoft.CSharp.CSharpCodeGenerator.GenerateTypes(CodeNamespace e)
          at Microsoft.CSharp.CSharpCodeGenerator.GenerateNamespace(CodeNamespace e)
          at Microsoft.CSharp.CSharpCodeGenerator.System.CodeDom.Compiler.ICodeGenerator.GenerateCodeFromNamespace(CodeNamespace e, TextWriter w, CodeGeneratorOptions o)
          at Microsoft.CSharp.CSharpCodeGenerator.GenerateNamespaces(CodeCompileUnit e)
          at Microsoft.CSharp.CSharpCodeGenerator.System.CodeDom.Compiler.ICodeGenerator.GenerateCodeFromCompileUnit(CodeCompileUnit e, TextWriter w, CodeGeneratorOptions o)
          at System.CodeDom.Compiler.CodeDomProvider.GenerateCodeFromCompileUnit(CodeCompileUnit compileUnit, TextWriter writer, CodeGeneratorOptions options)
          at ArtOfTest.WebAii.Design.ProjectModel.Project.CreateElementsCodeFile(CodeDomProvider provider, Boolean& codeFileCreated, String& codeString, Exception& ex)
          at ArtOfTest.WebAii.Design.ProjectModel.Project.RegenerateElementsCode()
Last Updated: 06 Mar 2020 07:27 by ADMIN

I have a project configured to Run Locally and a scheduled test list for execution in the future. The error message appears also if you have scheduled a recurring test list.

When I make a change in any of the tests, that are part of the test list, I get the message "Storage service unreachable". My setup does not have an use a Storage service and the test is actually updated and executed as expected.

Please fix the cases when this message appears unnecessarily.


Last Updated: 05 Mar 2020 08:57 by ADMIN

I created a Drag & Drop step from the Step Builder during test recording and picked a specific target element for the Drop location. The steps is created and executed correctly, but I am not able to copy or delete it.

I can disable it, so it does not execute, but it remains in the tests as a step.

Pending Review
Last Updated: 10 Feb 2020 12:28 by ADMIN
Created by: Efficio
Comments: 1
Type: Bug Report

Why do some extract actions have expectation properties?  Isn't the purpose of an extract just to get whatever value is set at the time and put it into a variable for later use (typically verification)?

For example, the RadDropDownList has the built in action of "Extract - RadDropDownList: all item count is '19'".  This creates a step like this: "RadDropDownList('ctl00_cphM_ecAddContact_ddlCategory')Extract item count into DataBindVariable $(CphMEcAddContactDdlCategoryDiv)".  The step properties have CompareType and ItemCount.

Interestingly, in my test of a drop down list with 19 items, I changed the ItemCount property to 999 and ran it and the step passed successfully.

Last Updated: 03 Feb 2020 08:03 by ADMIN

Both options to delete a cookie by domain and by cookie do not work for Chrome and Firefox. It still works for Internet Explorer though.

ActiveBrowser.Cookies.DeleteCookie(string domain);

ActiveBrowser.Cookies.DeleteCookie(Cookie cookie);

The ClearBrowserCache step is working as expected and clears all cookies.

Last Updated: 31 Jan 2020 07:39 by ADMIN
If a data column name contains brackets and is something like: 'text (something) test' and you bind a step to it, upon execution the test fails to get column:

Column name 'text (something' does not exist!
System.ArgumentException: Column name 'text (something' does not exist!
Last Updated: 30 Jan 2020 13:58 by ADMIN

The Check for JS errors step is not working on remote execution with the Test Studio Test Runner. I have no issues when executing locally on the machine with Test Studio.

This is causing troubles for the CI builds and scheduled execution.

Pending Review
Last Updated: 14 Jan 2020 14:54 by Aditya
When comparing whole json objects using the verifications in API studio, the result will return false instead of true. For example the following case will return false:
Expected was '{
  "userId": 1,
  "id": 1,
  "title": "title",
  "completed": false
}'. Actual was '{
  "userId": 1,
  "id": 1,
  "title": "title",
  "completed": false

There seems to be some parsing problem.
Last Updated: 09 Jan 2020 11:33 by ADMIN

I have an application, where 1 click triggers 2 consecutive confirm dialogs. I handled them both and Test Studio recorded 2 handle confirm dialog steps. 

When I run the test against Internet Explorer it works as expected, but in Chrome it is stuck at the second confirm dialog.

Last Updated: 09 Jan 2020 11:33 by ADMIN

Auto-submitting a bug from local test run works as expected, but not from a remote execution server. 

The issue comes from the different certificates that Test Studio and the remote execution server use and the fact that there were changes in Jira's API.

Pending Review
Last Updated: 17 Dec 2019 08:41 by Darren
When you change the ControlType of an element, it does not change for the same element in a coded step. Even though it is referenced from Pages.
Last Updated: 11 Dec 2019 11:54 by ADMIN
I got a problem with the test studio and the element KendoAngularNumericTextBox. These are elements which can be used to increase numbers or input them.

The test studio sends chars, so the step fails every time.

Error Message: Step failed.
Target '[Element: kenod-numerictextbox: (id....)] is not a supported element to set text to.'
Pending Review
Last Updated: 21 Nov 2019 15:05 by Graham

Custom WPF application with specific control - ViewBox, causes the highlighting to be misaligned. 

In case the ViewBox control is removed from the application structure, the highlighting works as expected. 

Pending Review
Last Updated: 05 Nov 2019 10:54 by Devin

The step failure details shows the option to add an element to the repository. This option actually does not work and it does not generate any log.

Last Updated: 29 Oct 2019 11:56 by ADMIN

A specific WPF application with custom controls cannot be highlighted correctly. 

Details shared internally.

Pending Review
Last Updated: 23 Oct 2019 13:25 by ADMIN
Created by: Richard
Comments: 1
Type: Bug Report


I would like to report what is probably a bug within the Telerik Test Studio.

I have imported / data bound a CSV file to a data driven test case.  There is one field in one record that is not being picked up by your software.  It is very bizarre.  I though I had encountered something like this before but was not able to reproduce.  Now, I have found it again.  The column in question contains both American zip codes and Canadian postal codes.  The all numeric zip codes are being picked up but the alpha-numeric postal code is not.

I have included a copy of the CSV file and a couple of screenshots from the software (one in Excel and the other from the "Bind test to a data source" screen) of the file in question.

When I used...

MessageBox.Show(Data["landlordMailOopPostalCode"].ToString()); a coded step I see absolutely nothing in the dialog screen.

If you wish to see my project please let me know.

Thank you. 


Last Updated: 23 Oct 2019 13:07 by ADMIN
The step recorded through the RadInput translator is acting as SimulateRealTyping is enabled. However, the scroll direction cannot be changed either in code, or through the step properties. In some occasions this may cause troubles during test execution. 
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