Chinese characters copied to clipboard via VSCode test runner are corrupted

[Fierygit]

What version of Go, VS Code & VS Code Go extension are you using?

Version Information

$ go version
go version go1.24.1 darwin/arm64

Version: 1.98.2 (Universal)
Commit: ddc367ed5c8936efe395cffeec279b04ffd7db78
Date: 2025-03-12T13:32:45.399Z (1 wk ago)
Electron: 34.2.0
ElectronBuildId: 11161602
Chromium: 132.0.6834.196
Node.js: 20.18.2
V8: 13.2.152.36-electron.0
OS: Darwin arm64 23.6.0

Tools Configuration

Environment

GOBIN: undefined
toolsGopath:
gopath: /Users/firefly/go
GOROOT: /usr/local/go

Tools

go:	/usr/local/go/bin/go: go version go1.24.1 darwin/arm64

gopls:	/Users/firefly/go/bin/gopls	(version: v0.18.1 built with go: go1.24.1)
gotests:	/Users/firefly/go/bin/gotests	(version: v1.6.0 built with go: go1.24.1)
gomodifytags:	/Users/firefly/go/bin/gomodifytags	(version: v1.17.0 built with go: go1.24.1)
impl:	/Users/firefly/go/bin/impl	(version: v1.4.0 built with go: go1.24.1)
goplay:	/Users/firefly/go/bin/goplay	(version: v1.0.0 built with go: go1.24.1)
dlv:	/Users/firefly/go/bin/dlv	(version: v1.24.1 built with go: go1.24.1)

Share the Go related settings you have added/edited

i added nothing to the settings

Describe the bug

When running a Go test in VSCode using the ​**"Run Test"** button, Chinese characters copied to the clipboard are corrupted. However, when running the same test via the terminal using go test, the clipboard content is correct.

Steps to Reproduce

​Code Example:

func TestClipboard(t *testing.T) {
if err := clipboard.WriteAll("中文"); err != nil {
t.Fatal(err)
}
}

​Run in VSCode:
Open the Go file containing the above code.
Click the ​**"Run Test"** button from the GO Extension to execute the test.
​Run in Terminal:
go test -v -run TestClipboard

Expected Result

Regardless of whether the test is run in VSCode or the terminal, the clipboard content should be: 中文

Actual Result

​Run in VSCode:
Clipboard content is: 中文

​Run in Terminal:
Clipboard content is correct: 中文

[jba]

Can you explain how to reproduce?

[firelizzard18]

Whether you're using the test explorer (e.g. ) or the legacy test support (e.g. ) is likely relevant.