Pending Review
Last Updated: 16 Apr 2024 16:28 by Stephen

We've posted about this before, tickets and forum.

Attached is the log of a different failed scenario. Unlike ticket 1621768, there is no execution delay (hardcoded) before the error. To be sure, we get what seems to be random failed tests that run successful more often than not in most prior runs. What seems constant is that our test lists will encounter errors in an automated Azure pipeline run (if we then run that same pipeline manually, it's usually successful).

Is there something we can do to the environment that we are running the test lists, the settings or something of that nature? Maybe some way to "prime" the environment?

Note, our license is under

Last Updated: 15 Apr 2024 13:41 by ADMIN
When trying to connect to Git repo in Azure DevOps the connection is reported successful. Then, however, all supported commands are not performed as expected. The message in SourceControl output is: too many redirects or authentication replays. 
Pending Review
Last Updated: 11 Apr 2024 12:05 by Jim
Created by: Jim
Comments: 0
Type: Feature Request

Once I have the browser up and running I don't need to start from 'Log onto URL'. Hence my high partial test run use.
I may be only running part of a test, but when the test is 500 steps its cumbersome to highlight the section I want to run, and where to stop.
It would be much easier to set a breakpoint, run the part of the test I need, and stop midway.

In Development
Last Updated: 05 Apr 2024 12:55 by ADMIN

Error upon compilation is related to the Pages.g.cs file where all elements are listed with their find expression. 

12:38:44 'ERROR' > C:\Users\dpruteanu\Test Studio Projects\After_reinstall_3-27-24\Pages.g.cs(229,108) : error CS1003: Syntax error, ',' expected

Steps to reproduce: 

  1. Testing WPF app which has quotation mark in the name of the window.
  2. Record some steps for a scenario.
  3. Convert any step to code, or insert a coded step.
  4. Compile the project.

Expected: The compilation is successful.
Actual: The compilation fails with the mentioned error. 

Last Updated: 29 Mar 2024 13:22 by Marek

There is no option in Test Studio recording capabilities to add a step which sets value for the WPF RadSlider control. It will be useful to have such similar to the WPF slider control. 

The workaround is to set this in a coded step like this:

// Accepts values from 0 to 1
Applications.SliderTestexe.MainWindow.Item0Radslider.Value = 0.25;

Last Updated: 21 Mar 2024 12:57 by Max
Enter text step added from the Step Builder has the 'Encrypt' property greyed out and there is no option to make it active and use it. 
Last Updated: 20 Mar 2024 16:08 by Tomáš

Although the actual image files are with good resolution and are smooth, when displayed in the Failure Details Images tab they are blurry. 

It will be great to display the images better. 

In Development
Last Updated: 20 Mar 2024 13:06 by ADMIN

 public static DesktopFind WaitForDesktopAppWindow(DesktopApplication desktopApp, string strWindowsName)
      return desktopApp.WaitForWindow(strWindowsName, delay, 60000).Find; //with a delay of 700


fails if COMException is thrown.

Expected is to handle that exception and wait for the set timeout. 

In Development
Last Updated: 18 Mar 2024 14:47 by ADMIN
A wpf application does not start correctly in Test Studio because the working directory cannot be specified.
Last Updated: 15 Mar 2024 09:35 by ADMIN
Created by: Vera
Comments: 0
Type: Feature Request
Support for VS Community Edition 
Last Updated: 15 Mar 2024 09:33 by ADMIN

When generating chained find expressions Test Studio always uses the id tribute for the parent element and it doesn't take into account the actual order of attributes.

Then, if you completely remove the id from the find logic list settings, the generated find expression uses only TagIndex for the target element and no chained find expression. 

Generating this type of expressions need to be revised. 

Example shared internally!

Last Updated: 15 Mar 2024 09:31 by ADMIN
Building the find expressions for elements in HTML during recording respects the Identification Logic:

That isn't the case when Test Studio builds chained expressions though (e.g. it cannot find an Id or Name to build direct expression thus locates a unique parent element to include in the find logic.

In this case TS respects the Id or Name only and not the rest of the attributes (including custom ones).

It will be nice if the chained find expressions building algorithm is extended to respect the preset identification logic as well.
Last Updated: 15 Mar 2024 09:25 by ADMIN

Download dialog which is triggered from a new tab fails to be handled when running a test in Edge and Chrome extensionless mode. 

Such download dialog is usually triggered with a link similar to this: 

<a href="" target="_blank">Link to donwload</a>

The download dialog looks like this: 

Last Updated: 01 Mar 2024 11:09 by ADMIN

Version 2023.3.1115.

Test list logging option is not saving log in specified location from test list settings. 


Last Updated: 29 Feb 2024 09:41 by Pribadi
Dear Telerik Support Team,

Currently, when running multiple test cases in Telerik Test Studio, we encounter the need to repeatedly launch and close the application under test for each individual test case. This process of launching and terminating the application adds unnecessary overhead and significantly extends the time required to execute our test suite.

To streamline our testing process and improve efficiency, we would like to suggest the implementation of an option that allows us to run multiple test cases without automatically killing the application at the end of each test case execution.

This feature would enable us to execute multiple test cases sequentially within the same application instance, eliminating the need to repeatedly launch and close the application for each test case. As a result, we would experience significant time savings and improved productivity in our testing efforts.

We believe that adding this option to Telerik Test Studio would greatly benefit your users and enhance the overall usability and efficiency of the tool.

We kindly request your consideration of this feature request, and we would greatly appreciate any updates or feedback on the feasibility of implementing this option in a future release of Telerik Test Studio.

Thank you for your attention to this matter. We look forward to your response.
Last Updated: 02 Feb 2024 12:38 by Software

Steps to reproduce: 

  1. Create a sub-folder in the project root to store the custom dlls needed for the project. 
  2. Add references to these into the Project settings.

Expected: The references are added with relative path starting under the project root.

Actual:  The project root is included in the relative path.

Last Updated: 02 Feb 2024 12:26 by Software

Test Studio supports adding a single custom base test class in the project. If one more base test class is defined and listed in a test code-behind file, the coded steps will be listed as empty and will not show the option to choose any of the methods in the test class.The steps will be still executed, but no changes can be applied within Test Studio (only in VS).

because I want many test sharing the same OnAfterTestCompleted(), instead of adding it to each test, I created new class:


namespace test_studio_tests
    public class CustomWebAiiTest : BaseWebAiiTest
        public override void OnAfterTestCompleted(TestResult result)
            // some code to be executed 

and then all the tests to inherit from this new class

public class TestClass : CustomWebAiiTest

instead of Base one as they did so far. in TS project keep compiling, but then all the tests have extra icon and coded steps are not recognized anymore. in the meantime in VS2022 with TS plugin, all is recognized and keep working without any issue.

Won't Fix
Last Updated: 30 Jan 2024 15:29 by ADMIN

When sorting tests from the test list result panel, the same sorting is applied to the steps in every test from the test list when drilled down. 

Last Updated: 22 Jan 2024 08:18 by Software
I want to keep using only UPLOAD button in top menu of TS, so to have upload done intentionally. Want to hide this question every time I close TS.
Last Updated: 18 Jan 2024 09:12 by ADMIN

In a project which is not connected to a Scheduling service create a scheduled test list run recurring for the "1st Monday of each Month" with no end dates. This automatically switches to the Results tab but it freezes and you can only exit Test Studio. 

Error in log is as follows:

[12/13 14:02:00,Telerik.TestStudio.exe(12028:34),Error] App.LogUnhandledException() : EXCEPTION! (see below)
     Situation: Unhandled exception!
     Outer Exception Type: System.ArgumentOutOfRangeException
     Message: The added or subtracted value results in an un-representable DateTime.
          Parameter name: value
     HRESULT: 0x80131502 (Official ID (if app.) = COR_E_ARGUMENTOUTOFRANGE, Error Bit = FAILED, Facility = FACILITY_URT, Code = 5378)
     Call Stack:
          at System.DateTime.AddTicks(Int64 value)
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