if err := r.runOnce(); err != nil {
			t.Fatal(err)
		}
		after, err := ipallocator.NewFromSnapshot(ipregistry.updated)
		if err != nil {
			t.Fatal(err)
		}
		if !after.Has(netutils.ParseIPSloppy("192.168.1.10")) {
			t.Errorf("expected ipallocator to still have leaked IP")
		}
	}
	// Run one more time to actually remove the leak.
	if err := r.runOnce(); err != nil {
		t.Fatal(err)
	}

	v := MetricDescription{}
	bts, err := v.MarshalMsg(nil)
	if err != nil {
		t.Fatal(err)
	}
	left, err := v.UnmarshalMsg(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)

		Age  int
	}
	if err := json.NewDecoder(stdout).Decode(&person); err != nil {
		log.Fatal(err)
	}
	if err := cmd.Wait(); err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%s is %d years old\n", person.Name, person.Age)
}

func ExampleCmd_StdinPipe() {
	cmd := exec.Command("cat")
	stdin, err := cmd.StdinPipe()
	if err != nil {
		log.Fatal(err)
	}

	go func() {
		defer stdin.Close()

	v := connectReq{}
	bts, err := v.MarshalMsg(nil)
	if err != nil {
		t.Fatal(err)
	}
	left, err := v.UnmarshalMsg(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)

	v := BaseOptions{}
	bts, err := v.MarshalMsg(nil)
	if err != nil {
		t.Fatal(err)
	}
	left, err := v.UnmarshalMsg(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)

		return operr != syscall.EAGAIN
	})
	if err != nil {
		t.Fatal(err)
	}
	if operr != nil {
		t.Fatal(err)
	}

	var n int
	buf := make([]byte, 1)
	err = rconn.Read(func(s uintptr) bool {
		n, operr = syscall.Read(syscallDescriptor(s), buf)
		return operr != syscall.EAGAIN
	})
	if err != nil {
		t.Fatal(err)
	}
	if operr != nil {
		t.Fatal(operr)
	}
	if n != 1 {

	f, err := os.Open(".")
	if err != nil {
		t.Fatal(err)
	}
	defer f.Close()

	fi, err := f.Stat()
	if err != nil {
		t.Fatal(err)
	}

	err = os.Chdir("..")
	if err != nil {
		t.Fatal(err)
	}

	fi2, err := f.Stat()
	if err != nil {
		t.Fatal(err)
	}

	if !os.SameFile(fi, fi2) {
		t.Fatal("race condition occurred")
	}
}

	if _, err := io.Copy(os.Stdout, r); err != nil {
		log.Fatal(err)
	}

	// Output:
	// some io.Reader stream to be read
}

func ExampleCopyBuffer() {
	r1 := strings.NewReader("first reader\n")
	r2 := strings.NewReader("second reader\n")
	buf := make([]byte, 8)

	// buf is used here...
	if _, err := io.CopyBuffer(os.Stdout, r1, buf); err != nil {
		log.Fatal(err)
	}

	if err != nil {
		t.Fatal(err)
	}

	// After heal the meta file should be as expected.
	if !fileInfoPreHeal1.Equals(fileInfoPostHeal1) {
		t.Fatal("HealObject failed")
	}
	if !fileInfoPreHeal1.Equals(fileInfoPostHeal2) {
		t.Fatal("HealObject failed")
	}

	err = os.RemoveAll(path.Join(fsDirs[0], bucket, object, "xl.meta"))
	if err != nil {
		t.Fatal(err)
	}

	if err != nil {
		t.Fatal(err)
	}

	noxuListListMeta, err := meta.ListAccessor(noxuList)
	if err != nil {
		t.Fatal(err)
	}

	noxuNamespacedWatch, err := noxuNamespacedResourceClient.Watch(context.TODO(), metav1.ListOptions{ResourceVersion: noxuListListMeta.GetResourceVersion()})
	if err != nil {
		t.Fatal(err)
	}
	defer noxuNamespacedWatch.Stop()