Pester stopped working in vscode

vojtech-kasny commented 9 months ago

Checklist

[X] Issue has a meaningful title
[X] I have searched the existing issues. See all issues
[X] I have tested using the latest version of Pester. See Installation and update guide.

What is the issue?

Error is thrown from vscode:

InvalidOperation: You cannot call a method on a null-valued expression.
InvalidOperation: You cannot call a method on a null-valued expression.
InvalidOperation: You cannot call a method on a null-valued expression.
System.Management.Automation.RuntimeException: You cannot call a method on a null-valued expression.
   at System.Management.Automation.ExceptionHandlingOps.CheckActionPreference(FunctionContext funcContext, Exception exception)
   at System.Management.Automation.Interpreter.ActionCallInstruction`2.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.Interpreter.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.LightLambda.RunVoid1[T0](T0 arg0)
   at System.Management.Automation.PSScriptCmdlet.RunClause(Action`1 clause, Object dollarUnderbar, Object inputToProcess)
   at System.Management.Automation.CommandProcessorBase.Complete()
at New-PesterState, C:\Program Files\WindowsPowerShell\Modules\Pester\5.5.0\Pester.psm1: line 616
at Invoke-Test, C:\Program Files\WindowsPowerShell\Modules\Pester\5.5.0\Pester.psm1: line 2447
at Invoke-Pester<End>, C:\Program Files\WindowsPowerShell\Modules\Pester\5.5.0\Pester.psm1: line 5046
at <ScriptBlock>, C:\Users\<username>\.vscode\extensions\ms-vscode.powershell-2023.8.0\modules\PowerShellEditorServices\InvokePesterStub.ps1: line 176
at <ScriptBlock>, <No file>: line 1

Note:

Testing works using PowerShell (outside of vscode) using e.g. Invoke-Pester C:\temp\demo.tests.ps1 -Output Detailed

Expected Behavior

Tests are performed

Steps To Reproduce

open Visual Studio Code (latest stable build)

Version: 1.84.2 (user setup)
Commit: 1a5daa3a0231a0fbba4f14db7ec463cf99d7768e
Date: 2023-11-09T10:51:52.184Z
Electron: 25.9.2
ElectronBuildId: 24603566
Chromium: 114.0.5735.289
Node.js: 18.15.0
V8: 11.4.183.29-electron.0
OS: Windows_NT x64 10.0.22621

install latest Pester module version (5.5.0)
create any test file
define any test
click Run tests from the editor

Describe your environment

Pester version     : 5.5.0 C:\Program Files\WindowsPowerShell\Modules\Pester\5.5.0\Pester.psm1
PowerShell version : 7.4.0
OS version         : Microsoft Windows NT 10.0.22621.0

Possible Solution?

No response

fflaten commented 9 months ago

Thanks for the report. I'm unable to reproduce the issue. The stacktrace points to an unexpected flow where Pester's run state is missing.

Is it consistently throwing the same error?
Does it also work if you change VSCode to use Windows PowerShell?
Which language mode is your PowerShell session running in? You can check using $ExecutionContext.SessionState.LanguageMode
Could you provide a test file?

fflaten commented 4 months ago

Closing due to inactivity and can't repro. Will reopen if someone's able provide repro steps.

pester / Pester