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package singleinstance
import (
"io/ioutil"
"os"
"testing"
)
func createTestLock(t *testing.T) *os.File {
tmpfile, err := ioutil.TempFile("", "singleinstance")
if err != nil {
t.Fatal("Cannot create temporary file:", err)
}
tmpfile.Close()
f, err := CreateLockFile(tmpfile.Name())
if err != nil {
t.Fatal("Expected no error while creating lock, got:", err)
}
return f
}
func TestCreateLockFile(t *testing.T) {
f := createTestLock(t)
defer os.Remove(f.Name())
_, err := CreateLockFile(f.Name())
if err == nil {
t.Fatal("Expected an error while trying to lock, got:", err)
}
f.Close() // Remove the lock
f, err = CreateLockFile(f.Name())
if err != nil {
t.Fatal("Expected no error while trying to lock, got:", err)
}
f.Close()
}
func TestGetLockFilePid(t *testing.T) {
f := createTestLock(t)
defer os.Remove(f.Name())
defer f.Close()
pid, err := GetLockFilePid(f.Name())
if err != nil {
t.Fatal("Expected no error while getting PID, got:", err)
}
if pid != os.Getpid() {
t.Errorf("Invalid PID: expected %v but got %v", os.Getpid(), pid)
}
}
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