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// Copyright 2012 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 svc_test
import (
"fmt"
"io/ioutil"
"math/rand"
"os"
"os/exec"
"path/filepath"
"strings"
"testing"
"time"
"golang.org/x/sys/windows/svc"
"golang.org/x/sys/windows/svc/mgr"
)
func getState(t *testing.T, s *mgr.Service) svc.State {
status, err := s.Query()
if err != nil {
t.Fatalf("Query(%s) failed: %s", s.Name, err)
}
return status.State
}
func testState(t *testing.T, s *mgr.Service, want svc.State) {
have := getState(t, s)
if have != want {
t.Fatalf("%s state is=%d want=%d", s.Name, have, want)
}
}
func waitState(t *testing.T, s *mgr.Service, want svc.State) {
for i := 0; ; i++ {
have := getState(t, s)
if have == want {
return
}
if i > 10 {
t.Fatalf("%s state is=%d, waiting timeout", s.Name, have)
}
time.Sleep(300 * time.Millisecond)
}
}
func TestExample(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode - it modifies system services")
}
const name = "myservice"
m, err := mgr.Connect()
if err != nil {
t.Fatalf("SCM connection failed: %s", err)
}
defer m.Disconnect()
dir, err := ioutil.TempDir("", "svc")
if err != nil {
t.Fatalf("failed to create temp directory: %v", err)
}
defer os.RemoveAll(dir)
exepath := filepath.Join(dir, "a.exe")
o, err := exec.Command("go", "build", "-o", exepath, "golang.org/x/sys/windows/svc/example").CombinedOutput()
if err != nil {
t.Fatalf("failed to build service program: %v\n%v", err, string(o))
}
s, err := m.OpenService(name)
if err == nil {
err = s.Delete()
if err != nil {
s.Close()
t.Fatalf("Delete failed: %s", err)
}
s.Close()
}
s, err = m.CreateService(name, exepath, mgr.Config{DisplayName: "my service"}, "is", "auto-started")
if err != nil {
t.Fatalf("CreateService(%s) failed: %v", name, err)
}
defer s.Close()
args := []string{"is", "manual-started", fmt.Sprintf("%d", rand.Int())}
testState(t, s, svc.Stopped)
err = s.Start(args...)
if err != nil {
t.Fatalf("Start(%s) failed: %s", s.Name, err)
}
waitState(t, s, svc.Running)
time.Sleep(1 * time.Second)
// testing deadlock from issues 4.
_, err = s.Control(svc.Interrogate)
if err != nil {
t.Fatalf("Control(%s) failed: %s", s.Name, err)
}
_, err = s.Control(svc.Interrogate)
if err != nil {
t.Fatalf("Control(%s) failed: %s", s.Name, err)
}
time.Sleep(1 * time.Second)
_, err = s.Control(svc.Stop)
if err != nil {
t.Fatalf("Control(%s) failed: %s", s.Name, err)
}
waitState(t, s, svc.Stopped)
err = s.Delete()
if err != nil {
t.Fatalf("Delete failed: %s", err)
}
out, err := exec.Command("wevtutil.exe", "qe", "Application", "/q:*[System[Provider[@Name='myservice']]]", "/rd:true", "/c:10").CombinedOutput()
if err != nil {
t.Fatalf("wevtutil failed: %v\n%v", err, string(out))
}
if want := strings.Join(append([]string{name}, args...), "-"); !strings.Contains(string(out), want) {
t.Errorf("%q string does not contain %q", string(out), want)
}
}
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