/usr/share/gocode/src/blitiri.com.ar/go/systemd/systemd_test.go is in golang-blitiri-go-systemd-dev 0.0+git20170821.0.aec3508-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 | package systemd
import (
"math/rand"
"net"
"os"
"strconv"
"strings"
"testing"
)
func setenv(pid, fds string, names ...string) {
os.Setenv("LISTEN_PID", pid)
os.Setenv("LISTEN_FDS", fds)
os.Setenv("LISTEN_FDNAMES", strings.Join(names, ":"))
listeners = nil
parseError = nil
}
func TestEmptyEnvironment(t *testing.T) {
cases := []struct{ pid, fds string }{
{"", ""},
{"123", ""},
{"", "4"},
}
for _, c := range cases {
setenv(c.pid, c.fds)
if ls, err := Listeners(); ls != nil || err != nil {
t.Logf("Case: LISTEN_PID=%q LISTEN_FDS=%q", c.pid, c.fds)
t.Errorf("Unexpected result: %v // %v", ls, err)
}
}
}
func TestBadEnvironment(t *testing.T) {
// Create a listener so we have something to reference.
l := newListener(t)
firstFD = listenerFd(t, l)
ourPID := strconv.Itoa(os.Getpid())
cases := []struct {
pid, fds string
names []string
}{
{"a", "1", []string{"name"}}, // Invalid PID.
{ourPID, "a", []string{"name"}}, // Invalid number of fds.
{"1", "1", []string{"name"}}, // PID != ourselves.
{ourPID, "1", []string{"name1", "name2"}}, // Too many names.
{ourPID, "1", []string{}}, // Not enough names.
}
for _, c := range cases {
setenv(c.pid, c.fds, c.names...)
if ls, err := Listeners(); err == nil {
t.Logf("Case: LISTEN_PID=%q LISTEN_FDS=%q LISTEN_FDNAMES=%q", c.pid, c.fds, c.names)
t.Errorf("Unexpected result: %v // %v", ls, err)
}
if ls, err := OneListener("name"); err == nil {
t.Errorf("Unexpected result: %v // %v", ls, err)
}
}
}
func TestWrongPID(t *testing.T) {
// Find a pid != us. 1 should always work in practice.
pid := 1
for pid == os.Getpid() {
pid = rand.Int()
}
setenv(strconv.Itoa(pid), "4")
if _, err := Listeners(); err != ErrPIDMismatch {
t.Errorf("Did not fail with PID mismatch: %v", err)
}
if _, err := OneListener("name"); err != ErrPIDMismatch {
t.Errorf("Did not fail with PID mismatch: %v", err)
}
}
func TestNoFDs(t *testing.T) {
setenv(strconv.Itoa(os.Getpid()), "0")
if ls, err := Listeners(); len(ls) != 0 || err != nil {
t.Errorf("Got a non-empty result: %v // %v", ls, err)
}
}
// newListener creates a TCP listener.
func newListener(t *testing.T) *net.TCPListener {
addr := &net.TCPAddr{
Port: 0,
}
l, err := net.ListenTCP("tcp", addr)
if err != nil {
t.Fatalf("Could not create TCP listener: %v", err)
}
return l
}
// listenerFd returns a file descriptor for the listener.
// Note it is a NEW file descriptor, not the original one.
func listenerFd(t *testing.T, l *net.TCPListener) int {
f, err := l.File()
if err != nil {
t.Fatalf("Could not get TCP listener file: %v", err)
}
return int(f.Fd())
}
func sameAddr(a, b net.Addr) bool {
return a.Network() == b.Network() && a.String() == b.String()
}
func TestOneSocket(t *testing.T) {
l := newListener(t)
firstFD = listenerFd(t, l)
setenv(strconv.Itoa(os.Getpid()), "1", "name")
lsMap, err := Listeners()
if err != nil || len(lsMap) != 1 {
t.Fatalf("Got an invalid result: %v // %v", lsMap, err)
}
ls := lsMap["name"]
if !sameAddr(ls[0].Addr(), l.Addr()) {
t.Errorf("Listener 0 address mismatch, expected %#v, got %#v",
l.Addr(), ls[0].Addr())
}
oneL, err := OneListener("name")
if err != nil {
t.Errorf("OneListener error: %v", err)
}
if !sameAddr(oneL.Addr(), l.Addr()) {
t.Errorf("OneListener address mismatch, expected %#v, got %#v",
l.Addr(), ls[0].Addr())
}
if os.Getenv("LISTEN_PID") != "" || os.Getenv("LISTEN_FDS") != "" {
t.Errorf("Failed to reset the environment")
}
}
func TestManySockets(t *testing.T) {
// Create two contiguous listeners.
// The test environment does not guarantee us that they are contiguous, so
// keep going until they are.
var l0, l1 *net.TCPListener
var f0, f1 int = -1, -3
for f0+1 != f1 {
// We have to be careful with the order of these operations, because
// listenerFd will create *new* file descriptors.
l0 = newListener(t)
l1 = newListener(t)
f0 = listenerFd(t, l0)
f1 = listenerFd(t, l1)
t.Logf("Looping for FDs: %d %d", f0, f1)
}
firstFD = f0
setenv(strconv.Itoa(os.Getpid()), "2", "name1", "name2")
lsMap, err := Listeners()
if err != nil || len(lsMap) != 2 {
t.Fatalf("Got an invalid result: %v // %v", lsMap, err)
}
ls := []net.Listener{
lsMap["name1"][0],
lsMap["name2"][0],
}
if !sameAddr(ls[0].Addr(), l0.Addr()) {
t.Errorf("Listener 0 address mismatch, expected %#v, got %#v",
l0.Addr(), ls[0].Addr())
}
if !sameAddr(ls[1].Addr(), l1.Addr()) {
t.Errorf("Listener 1 address mismatch, expected %#v, got %#v",
l1.Addr(), ls[1].Addr())
}
oneL, _ := OneListener("name1")
if !sameAddr(oneL.Addr(), l0.Addr()) {
t.Errorf("Listener 0 address mismatch, expected %#v, got %#v",
oneL.Addr(), ls[0].Addr())
}
if os.Getenv("LISTEN_PID") != "" ||
os.Getenv("LISTEN_FDS") != "" ||
os.Getenv("LISTEN_FDNAMES") != "" {
t.Errorf("Failed to reset the environment")
}
}
func TestListen(t *testing.T) {
orig := newListener(t)
firstFD = listenerFd(t, orig)
setenv(strconv.Itoa(os.Getpid()), "1", "name")
l, err := Listen("tcp", "&name")
if err != nil {
t.Errorf("Listen failed: %v", err)
}
if !sameAddr(l.Addr(), orig.Addr()) {
t.Errorf("Listener 0 address mismatch, expected %#v, got %#v",
l.Addr(), orig.Addr())
}
l, err = Listen("tcp", ":0")
if err != nil {
t.Errorf("Listen failed: %v", err)
}
t.Logf("listener created at %v", l.Addr())
}
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