Attempt to test systemd notify reload failure

test.go

package main

import (
	"fmt"
	"os"
	"os/signal"
	"syscall"
	"time"

	"github.com/coreos/go-systemd/daemon"
)

func main() {
	sigchan := make(chan os.Signal, 1)
	signal.Notify(sigchan)

	daemon.SdNotify(false, daemon.SdNotifyReady)
	fmt.Printf("Started\n")
	for {
		sig := <-sigchan
		switch sig {
		case syscall.SIGUSR1:
			fmt.Printf("Received SIGUSR1\n")
			time.Sleep(time.Second)
			daemon.SdNotify(false, daemon.SdNotifyReloading)
			fmt.Printf("Sent reloading notification\n")
			time.Sleep(time.Second)
			daemon.SdNotify(false, fmt.Sprintf("ERRNO=%d", syscall.EINVAL))
			fmt.Printf("Sent error\n")
		case syscall.SIGTERM, syscall.SIGINT:
			fmt.Printf("Received %s\n", sig)
			time.Sleep(time.Second)
			daemon.SdNotify(false, daemon.SdNotifyStopping)
			fmt.Printf("Sent stopping notification\n")
			time.Sleep(time.Second)
			os.Exit(0)
		default:
			fmt.Printf("Unhandled signal %s\n", sig)
		}
	}
}

test.service

[Service]
Type=notify
ExecStart=/tmp/test
ExecReload=/bin/kill -USR1 $MAINPID