mirror of
https://github.com/golang/go.git
synced 2025-12-08 06:10:04 +00:00
402f71a839
Removes a potential data race between os.Setenv and runtime.GOROOT, along with a bug where os.Setenv would only sometimes change the value of runtime.GOROOT. Change-Id: I7d2a905115c667ea6e73f349f3784a1d3e8f810d Reviewed-on: https://go-review.googlesource.com/6611 Reviewed-by: Keith Randall <khr@golang.org>
41 lines
1.1 KiB
Go
41 lines
1.1 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package runtime_test
|
|
|
|
import (
|
|
"runtime"
|
|
"syscall"
|
|
"testing"
|
|
)
|
|
|
|
func TestFixedGOROOT(t *testing.T) {
|
|
if runtime.GOOS == "plan9" {
|
|
t.Skipf("skipping plan9, it is inconsistent by allowing GOROOT to be updated by Setenv")
|
|
}
|
|
|
|
envs := runtime.Envs()
|
|
oldenvs := append([]string{}, envs...)
|
|
defer runtime.SetEnvs(oldenvs)
|
|
|
|
// attempt to reuse existing envs backing array.
|
|
want := runtime.GOROOT()
|
|
runtime.SetEnvs(append(envs[:0], "GOROOT="+want))
|
|
|
|
if got := runtime.GOROOT(); got != want {
|
|
t.Errorf(`initial runtime.GOROOT()=%q, want %q`, got, want)
|
|
}
|
|
if err := syscall.Setenv("GOROOT", "/os"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got := runtime.GOROOT(); got != want {
|
|
t.Errorf(`after setenv runtime.GOROOT()=%q, want %q`, got, want)
|
|
}
|
|
if err := syscall.Unsetenv("GOROOT"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got := runtime.GOROOT(); got != want {
|
|
t.Errorf(`after unsetenv runtime.GOROOT()=%q, want %q`, got, want)
|
|
}
|
|
}
|