Exemple #1
0
func TestFixedGOROOT(t *testing.T) {
	if runtime.GOOS == "plan9" {
		t.Skipf("skipping plan9, it is inconsistent by allowing GOROOT to be updated by Setenv")
	}

	// Restore both the real GOROOT environment variable, and runtime's copies:
	if orig, ok := syscall.Getenv("GOROOT"); ok {
		defer syscall.Setenv("GOROOT", orig)
	} else {
		defer syscall.Unsetenv("GOROOT")
	}
	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)
	}
}
Exemple #2
0
// Unsetenv unsets a single environment variable.
func Unsetenv(key string) error {
	return syscall.Unsetenv(key)
}
Exemple #3
0
func Unsetenv(key string) error {
	// This was added in Go 1.4.
	return syscall.Unsetenv(key)
}