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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| package immortal | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io/ioutil" | ||
| "log" | ||
| "os" | ||
| "os/exec" | ||
| "os/signal" | ||
| "path/filepath" | ||
| "strconv" | ||
| "syscall" | ||
| "testing" | ||
| "time" | ||
| ) | ||
|
|
||
| func TestHelperProcessSupervise(*testing.T) { | ||
| if os.Getenv("GO_WANT_HELPER_PROCESS") != "1" { | ||
| return | ||
| } | ||
| c := make(chan os.Signal, 1) | ||
| signal.Notify(c, os.Interrupt, os.Kill) | ||
| select { | ||
| case <-c: | ||
| os.Exit(1) | ||
| case <-time.After(10 * time.Second): | ||
| os.Exit(0) | ||
| } | ||
| } | ||
|
|
||
| func TestSupervise(t *testing.T) { | ||
| log.SetOutput(ioutil.Discard) | ||
| log.SetFlags(0) | ||
| base := filepath.Base(os.Args[0]) // "exec.test" | ||
| dir := filepath.Dir(os.Args[0]) // "/tmp/go-buildNNNN/os/exec/_test" | ||
| if dir == "." { | ||
| t.Skip("skipping; running test at root somehow") | ||
| } | ||
| parentDir := filepath.Dir(dir) // "/tmp/go-buildNNNN/os/exec" | ||
| dirBase := filepath.Base(dir) // "_test" | ||
| if dirBase == "." { | ||
| t.Skipf("skipping; unexpected shallow dir of %q", dir) | ||
| } | ||
| tmpfile, err := ioutil.TempFile("", "TestPidFile") | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| defer os.Remove(tmpfile.Name()) // clean up | ||
| cfg := &Config{ | ||
| Env: map[string]string{"GO_WANT_HELPER_PROCESS": "1"}, | ||
| command: []string{filepath.Join(dirBase, base), "-test.run=TestHelperProcessSupervise", "--"}, | ||
| Cwd: parentDir, | ||
| ctrl: true, | ||
| Pid: Pid{ | ||
| Parent: filepath.Join(parentDir, "parent.pid"), | ||
| Child: filepath.Join(parentDir, "child.pid"), | ||
| Follow: tmpfile.Name(), | ||
| }, | ||
| } | ||
| // to remove lock | ||
| os.RemoveAll(filepath.Join(parentDir, "supervise")) | ||
| d, err := New(cfg) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| time.Sleep(time.Second) | ||
| fctrl, err := OpenFifo(filepath.Join(parentDir, "supervise/control")) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| go Supervise(d) | ||
| defer func() { | ||
| fmt.Fprintln(fctrl, "kill") | ||
| fmt.Fprintln(fctrl, "exit") | ||
| }() | ||
|
|
||
| sup := &Sup{} | ||
|
|
||
| time.Sleep(time.Second) | ||
|
|
||
| // check pids | ||
| parent_pid, err := sup.ReadPidFile(filepath.Join(parentDir, "parent.pid")) | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| expect(t, os.Getpid(), parent_pid) | ||
| child_pid, err := sup.ReadPidFile(filepath.Join(parentDir, "child.pid")) | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| expect(t, true, child_pid > 0) | ||
|
|
||
| fmt.Fprintln(fctrl, "t") | ||
| time.Sleep(time.Second) | ||
| newchild_pid, err := sup.ReadPidFile(filepath.Join(parentDir, "child.pid")) | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| if child_pid == newchild_pid { | ||
| t.Error("Expecting new child pid") | ||
| } | ||
|
|
||
| // test info | ||
| syscall.Kill(parent_pid, syscall.SIGQUIT) | ||
| time.Sleep(time.Second) | ||
|
|
||
| // fake watch pid with other process | ||
| cmd := exec.Command("sleep", "1") | ||
| cmd.Start() | ||
| go func() { | ||
| cmd.Wait() | ||
| }() | ||
| watchPid := cmd.Process.Pid | ||
| err = ioutil.WriteFile(tmpfile.Name(), []byte(strconv.Itoa(watchPid)), 0644) | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
|
|
||
| // reset | ||
| fmt.Fprintln(fctrl, "t") | ||
|
|
||
| select { | ||
| case <-time.After(5 * time.Second): | ||
| t.Error("time out") | ||
| default: | ||
| for sup.IsRunning(watchPid) { | ||
| // wait mock watchpid to finish | ||
| time.Sleep(1500 * time.Millisecond) | ||
| fmt.Printf("sup.IsRunning(watchPid) = %+v %d\n", sup.IsRunning(watchPid), watchPid) | ||
| } | ||
| newchild_pid_after, err := sup.ReadPidFile(filepath.Join(parentDir, "child.pid")) | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| if newchild_pid == newchild_pid_after { | ||
| t.Error("Expecting different pids") | ||
| } | ||
| } | ||
| } |
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