dotnet-enable-testing-platform

Enable the Microsoft Testing Platform runner for a .NET solution by configuring global.json.

The Microsoft Testing Platform is a modern, extensible test runner that provides improved performance, better diagnostics, and native support for parallel test execution.

Steps

1. •

   Find the solution file (*.sln) in the current directory

   • •If no .sln found, warn and stop
2. •

   Check for existing global.json in the solution root directory

   • •Read contents if file exists
3. •

   Create or update global.json:

   • •If file does not exist, create it:
     json

     {
       "test": {
         "runner": "Microsoft.Testing.Platform"
       }
     }
     

   • •If file exists, merge the test section while preserving all other content:
     • •Parse existing JSON
     • •Add or update the test.runner property
     • •Preserve sdk, msbuild-sdks, and any other existing sections
4. •

   Verify JSON validity:

   bash

   dotnet build
   dotnet test
   

5. •

   If build fails, report the error and ask user how to proceed

6. •

   Report results:

   • •Confirm global.json was created or updated
   • •Show the final global.json content
   • •Confirm build status
   • •Confirm tests run successfully

Example global.json Configurations

Minimal (new file):

{
  "test": {
    "runner": "Microsoft.Testing.Platform"
  }
}

Merged (existing file with SDK pinning):

{
  "sdk": {
    "version": "8.0.100",
    "rollForward": "latestMinor"
  },
  "test": {
    "runner": "Microsoft.Testing.Platform"
  }
}

Error Handling

• •If no .sln found: warn and stop
• •If global.json exists but is invalid JSON: report error and ask user
• •If build fails after update: show errors and ask user how to proceed