如何从 Visual Studio 测试任务中设置 Azure DevOps 变量，以便以下内联 PowerShell 脚本可以读取它？

Question

I'm trying to set an Azure DevOps variable in the Release pipeline during a Visual Studio Test task. From within the Visual Studio C# Test code, I want to set an ADO Release variable based on whether a test passes or not. Then I will read in this variable in the following Release task, an inline Powershell script, to execute separate tasks.

I have tried to use the Console.WriteLine("##vso[task.setvariable variable=<VARIABLE_NAME>;]<VALUE>") in my C# Visual Studio Test code, but it does not set the variable. However, when I use an inline Powershell script to set the variable using Write-Host "##vso[task.setvariable variable=<VARIABLE_NAME>;]<VALUE>" it works correctly.

Is it possible to set the ADO Release variable using C# from within a Visual Studio Test task? Or can you only set variables using a Batch/Powershell/Shell script/task? If that's the case, does anyone have any suggestions on how to do this?

Answer 1

How to set Azure DevOps variable from Visual Studio Test task so the following inline PowerShell script can read it?

Indeed, just like jessehouwing said:

 vstest redirects the console output to the trx file.

So, we need use the Logging Command to invoke a logging command.

To resolve this issue, you can try the following method:

Add two inline powershell task to set the an ADO Release variable based on the results of the previous tasks (Including VS Test task):

Then add another powershell task to set the an ADO Release variable based when the results of all the previous task successfully (Including VS Test task).

Hope this helps.