src/cmd/go/testdata/script/cover_switch_toolchain.txt

go test -cover -n ./...
[!GOOS:windows] stderr $GOROOT'/bin/go tool covdata'
[GOOS:windows] stderr '\\\\bin\\\\go" tool covdata'

-- go.mod --
module example.com/m

go 1.25.0
-- m.go --
package main

func main() {}