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
|
package namespace
import (
"os"
"os/exec"
"path/filepath"
"strconv"
"testing"
)
func TestLifecycleReferenceCounting(t *testing.T) {
// Use a temporary directory to avoid polluting the system
tmpDir := t.TempDir()
SetRuntimeBaseDir(tmpDir)
profile := "test-vpn"
t.Run("RegisterAndUnregister", func(t *testing.T) {
err := RegisterProcess(profile)
if err != nil {
t.Fatalf("failed to register: %v", err)
}
pidsDir := GetPidsDirPath(profile)
pidFile := filepath.Join(pidsDir, strconv.Itoa(os.Getpid()))
if _, err := os.Stat(pidFile); os.IsNotExist(err) {
t.Errorf("PID file should exist at %s", pidFile)
}
err = UnregisterProcess(profile)
if err != nil {
t.Fatalf("failed to unregister: %v", err)
}
if _, err := os.Stat(pidFile); err == nil {
t.Errorf("PID file should have been removed at %s", pidFile)
}
})
t.Run("PruneStalePids", func(t *testing.T) {
pidsDir := GetPidsDirPath(profile)
if err := os.MkdirAll(pidsDir, 0755); err != nil {
t.Fatal(err)
}
// Create a fake PID file for a process that definitely doesn't exist
// Using a very high PID or -1 usually works, but let's use a known invalid one.
fakePid := "9999999"
fakePidFile := filepath.Join(pidsDir, fakePid)
if err := os.WriteFile(fakePidFile, []byte(""), 0644); err != nil {
t.Fatal(err)
}
// Also register the current process so it stays
RegisterProcess(profile)
err := PruneStalePids(profile)
if err != nil {
t.Fatalf("prune failed: %v", err)
}
if _, err := os.Stat(fakePidFile); err == nil {
t.Errorf("Stale PID file %s should have been pruned", fakePidFile)
}
// Current process should still be there
currentPidFile := filepath.Join(pidsDir, strconv.Itoa(os.Getpid()))
if _, err := os.Stat(currentPidFile); os.IsNotExist(err) {
t.Errorf("Current PID file %s should not have been pruned", currentPidFile)
}
UnregisterProcess(profile)
})
t.Run("IsLastProcess", func(t *testing.T) {
pidsDir := GetPidsDirPath(profile)
os.RemoveAll(pidsDir) // Reset
// Case 1: No processes (should return true as it's a clean state)
isLast, err := IsLastProcess(profile)
if err != nil || !isLast {
t.Errorf("Expected IsLastProcess to be true for empty profile, got %v, err: %v", isLast, err)
}
// Case 2: Only ourselves
RegisterProcess(profile)
isLast, err = IsLastProcess(profile)
if err != nil || !isLast {
t.Errorf("Expected IsLastProcess to be true for single process, got %v, err: %v", isLast, err)
}
// Case 3: Ourselves + another active process
// To test this, we'll actually start a dummy process.
cmd := exec.Command("sleep", "1")
if err := cmd.Start(); err != nil {
t.Fatalf("failed to start sleep process: %v", err)
}
defer cmd.Process.Kill()
// Manually add the sleep process PID to the tracking
os.WriteFile(filepath.Join(pidsDir, strconv.Itoa(cmd.Process.Pid)), []byte(""), 0644)
isLast, err = IsLastProcess(profile)
if err != nil || isLast {
t.Errorf("Expected IsLastProcess to be false with two active processes, got %v, err: %v", isLast, err)
}
UnregisterProcess(profile)
})
}
|
