If tests loops, the process isn't stopped even when "stop" is pressed

[sudo97]

Describe the bug
When my test function in XCTest goes into infinite loop, one of the tests hangs, and even clicking "stop" icon doesn't really stop it (I still see it in the activity monitor)

To Reproduce
Steps to reproduce the behavior:

1. Create a test suite, write a test function with XCTest
2. Add while true {}
3. Run it by clicking |> symbol.
4. See it not stopping (expecte).
5. Click the square button. It reports as stopped, but process is still there in the activity monitor

Expected behavior
I assume it should stop the process

Environment

• OS: MacOS 15.3
• Swift version:

swift-driver version: 1.115.1 Apple Swift version 6.0.3 (swiftlang-6.0.3.1.10 clang-1600.0.30.1)
Target: arm64-apple-macosx15.0

• Visual Studio Code version: Cursor version 0.45.11, VSCode Version 1.96.2
• vscode-swift version: 2.0.0

Additional context

1. test started

2. clicking stop

3. clicked stop. shows as stopped

4. activity monitor shows the process running

[plemarquand]

Thank you for the detailed bug report! I was able to reproduce the issue and have a fix up at #1391

[sudo97]

Glad I could help. I really love the plugin

[rbenegal]

Confirmed that things work as expected with a recent pre-release version (version 2.1.20250327 commit 882a038). Checked on Windows, Linux and Mac with the suggested test.