--- /dev/null
+// Copyright 2013 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.
+
+// +build windows
+
+package windows_test
+
+import (
+ "testing"
+
+ "golang.org/x/sys/windows"
+)
+
+func testSetGetenv(t *testing.T, key, value string) {
+ err := windows.Setenv(key, value)
+ if err != nil {
+ t.Fatalf("Setenv failed to set %q: %v", value, err)
+ }
+ newvalue, found := windows.Getenv(key)
+ if !found {
+ t.Fatalf("Getenv failed to find %v variable (want value %q)", key, value)
+ }
+ if newvalue != value {
+ t.Fatalf("Getenv(%v) = %q; want %q", key, newvalue, value)
+ }
+}
+
+func TestEnv(t *testing.T) {
+ testSetGetenv(t, "TESTENV", "AVALUE")
+ // make sure TESTENV gets set to "", not deleted
+ testSetGetenv(t, "TESTENV", "")
+}