server-starter/source_descriptor_close_test.go at develop/v2 · lestrrat-go/server-starter · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
//go:build !windows

package starter_test

import (
	"net"
	"path/filepath"
	"testing"

	"github.com/stretchr/testify/require"

	starter "github.com/lestrrat-go/server-starter/v2"
)

func TestListenerConversionClosesSourceFile(t *testing.T) {
	t.Run("TCP", func(t *testing.T) {
		source, err := net.ListenTCP("tcp", &net.TCPAddr{IP: net.ParseIP("127.0.0.1")})
		require.NoError(t, err)

		file, err := source.File()
		require.NoError(t, err)
		t.Cleanup(func() { _ = file.Close() })
		address := source.Addr().(*net.TCPAddr)
		require.NoError(t, source.Close())

		listener, err := starter.NewTCPListener(address.IP.String(), address.Port, file.Fd()).Listen()
		require.NoError(t, err)
		t.Cleanup(func() { require.NoError(t, listener.Close()) })
		require.Error(t, file.Close())
	})

	t.Run("UDP", func(t *testing.T) {
		source, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP("127.0.0.1")})
		require.NoError(t, err)

		file, err := source.File()
		require.NoError(t, err)
		t.Cleanup(func() { _ = file.Close() })
		address := source.LocalAddr().(*net.UDPAddr)
		require.NoError(t, source.Close())

		packetConn, err := starter.NewUDPListener(address.IP.String(), address.Port, file.Fd()).ListenPacket()
		require.NoError(t, err)
		t.Cleanup(func() { require.NoError(t, packetConn.Close()) })
		require.Error(t, file.Close())
	})

	t.Run("unix", func(t *testing.T) {
		path := filepath.Join(t.TempDir(), "listener.sock")
		source, err := net.ListenUnix("unix", &net.UnixAddr{Name: path, Net: "unix"})
		require.NoError(t, err)

		file, err := source.File()
		require.NoError(t, err)
		t.Cleanup(func() { _ = file.Close() })
		require.NoError(t, source.Close())

		listener, err := starter.NewUnixListener(path, file.Fd()).Listen()
		require.NoError(t, err)
		t.Cleanup(func() { require.NoError(t, listener.Close()) })
		require.Error(t, file.Close())
	})
}

func TestListenerConversionRejectsInvalidFileDescriptor(t *testing.T) {
	invalidFD := ^uintptr(0)

	listener, err := starter.NewTCPListener("127.0.0.1", 8080, invalidFD).Listen()
	require.Nil(t, listener)
	require.ErrorContains(t, err, "invalid TCP listener file descriptor")

	packetConn, err := starter.NewUDPListener("127.0.0.1", 8080, invalidFD).ListenPacket()
	require.Nil(t, packetConn)
	require.ErrorContains(t, err, "invalid UDP listener file descriptor")

	listener, err = starter.NewUnixListener("listener.sock", invalidFD).Listen()
	require.Nil(t, listener)
	require.ErrorContains(t, err, "invalid unix listener file descriptor")
}