Gdunit4

[valkyrienyanko]

This PR adds

• GDUnit4
• Automated GDUnit CI tests
• Basic GDUnit4 test
• Godot netcode connection runtime test

Wiki has been updated with installation steps for using GDUnit4.

Troubles installing C# Dev Kit for VSCode

ms-dotnettools.csdevkit-1.5.12-win32-x64.vsix

Popup Message

VSIX Installer

Install Failed

The install of 'C# Dev Kit' was not successful for all the selected products. For more information, click on the install log link at the bottom of the dialog.

C# Dev Kit
  Object reference not set to an instance of an object

Popup Error Log:

2026-02-08 12:23:24 PM - Signature Details...
2026-02-08 12:23:24 PM -     Extension is signed with an invalid signature.
2026-02-08 12:23:24 PM - System.NullReferenceException: Object reference not set to an instance of an object.
   at VSIXInstaller.ExtensionService.LogSignatureDetails(IExtension extension)
   at VSIXInstaller.ExtensionService.LogExtensionDetails(IExtension extension)
   at VSIXInstaller.ExtensionService.GetInstallableDataImpl(String vsixPath, String extensionPackParentName, Boolean isRepairSupported, IStateData stateData, IEnumerable`1& skuData)
   at VSIXInstaller.ExtensionService.GetInstallableData(String vsixPath, String extensionPackParentName, Boolean isRepairSupported, IStateData stateData, IEnumerable`1& skuData)
   at VSIXInstaller.ExtensionPackService.IsExtensionPack(IStateData stateData, Boolean isRepairSupported)
   at VSIXInstaller.ExtensionPackService.ExpandExtensionPackToInstall(IStateData stateData, Boolean isRepairSupported)
   at VSIXInstaller.App.Initialize(Boolean isRepairSupported)
   at VSIXInstaller.App.Initialize()
   at System.Threading.Tasks.Task`1.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()

Solution Found

Run the following within VSCode terminal.
code --install-extension ms-dotnettools.csdevkit-1.5.12-win32-x64.vsix --force

Make sure the .vsix file is in the root of the folder VSCode is opened in.