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f-33: mise en place d'un nouveau system de reservation #33

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Signed-off-by: GnomeZworc <nicolas.boufidjeline@g3e.fr>
This commit is contained in:
GnomeZworc 2026-08-25 22:37:07 +02:00
commit 1ec1d44c1a
Signed by: nicolas.boufideline
GPG key ID: 4406BBBF8845D632
8 changed files with 303 additions and 27 deletions
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126
internal/dhcp/reservation_test.go Normal file
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@ -0,0 +1,126 @@
package dhcp
import (
"os"
"path/filepath"
"testing"
)
const subName = "vp-admin_br-000001"
func TestWriteReservations_WritesOneLinePerInterface(t *testing.T) {
dir := t.TempDir()
res := []Reservation{
{MAC: "00:22:33:00:01:02", IP: "10.1.1.2"},
{MAC: "00:22:33:00:02:07", IP: "10.1.2.7"},
}
if err := WriteReservations(dir, subName, "i-web", res); err != nil {
t.Fatalf("WriteReservations : %v", err)
}
content, err := os.ReadFile(filepath.Join(HostsDir(dir, subName), "i-web"))
if err != nil {
t.Fatalf("fichier absent : %v", err)
}
want := "00:22:33:00:01:02,10.1.1.2\n00:22:33:00:02:07,10.1.2.7\n"
if string(content) != want {
t.Errorf("contenu attendu %q, obtenu %q", want, content)
}
}
func TestWriteReservations_CreatesDir(t *testing.T) {
dir := t.TempDir()
if err := WriteReservations(dir, subName, "i-web", []Reservation{{MAC: "aa", IP: "10.0.0.1"}}); err != nil {
t.Fatalf("WriteReservations : %v", err)
}
if fi, err := os.Stat(HostsDir(dir, subName)); err != nil || !fi.IsDir() {
t.Errorf("hosts.d non créé : %v", err)
}
}
func TestWriteReservations_EmptyIsAnError(t *testing.T) {
if err := WriteReservations(t.TempDir(), subName, "i-web", nil); err == nil {
t.Error("sans réservation la VM n'obtiendrait aucune adresse : il faut échouer, pas écrire un fichier vide")
}
}
func TestWriteReservations_IncompleteIsAnError(t *testing.T) {
cases := []Reservation{{MAC: "", IP: "10.0.0.1"}, {MAC: "aa:bb", IP: ""}}
for _, r := range cases {
if err := WriteReservations(t.TempDir(), subName, "i-web", []Reservation{r}); err == nil {
t.Errorf("réservation incomplète acceptée : %+v", r)
}
}
}
func TestWriteReservations_Overwrites(t *testing.T) {
dir := t.TempDir()
_ = WriteReservations(dir, subName, "i-web", []Reservation{{MAC: "aa", IP: "10.0.0.1"}})
if err := WriteReservations(dir, subName, "i-web", []Reservation{{MAC: "bb", IP: "10.0.0.2"}}); err != nil {
t.Fatalf("WriteReservations : %v", err)
}
content, _ := os.ReadFile(filepath.Join(HostsDir(dir, subName), "i-web"))
if string(content) != "bb,10.0.0.2\n" {
t.Errorf("la réécriture doit remplacer, obtenu %q", content)
}
}
func TestRemoveReservations_RemovesBothFiles(t *testing.T) {
dir := t.TempDir()
_ = WriteReservations(dir, subName, "i-web", []Reservation{{MAC: "aa", IP: "10.0.0.1"}})
if err := os.MkdirAll(OptsDir(dir, subName), 0755); err != nil {
t.Fatal(err)
}
optsFile := filepath.Join(OptsDir(dir, subName), "i-web")
if err := os.WriteFile(optsFile, []byte("tag:i-web,3,10.0.0.1\n"), 0644); err != nil {
t.Fatal(err)
}
if err := RemoveReservations(dir, subName, "i-web"); err != nil {
t.Fatalf("RemoveReservations : %v", err)
}
for _, p := range []string{filepath.Join(HostsDir(dir, subName), "i-web"), optsFile} {
if _, err := os.Stat(p); !os.IsNotExist(err) {
t.Errorf("%s aurait dû être supprimé", p)
}
}
}
func TestRemoveReservations_AbsentIsNotAnError(t *testing.T) {
if err := RemoveReservations(t.TempDir(), subName, "jamais-creee"); err != nil {
t.Errorf("supprimer une VM sans réservation ne doit pas échouer : %v", err)
}
}
func TestRemoveReservations_LeavesOtherVMs(t *testing.T) {
dir := t.TempDir()
_ = WriteReservations(dir, subName, "i-web", []Reservation{{MAC: "aa", IP: "10.0.0.1"}})
_ = WriteReservations(dir, subName, "i-db", []Reservation{{MAC: "bb", IP: "10.0.0.2"}})
if err := RemoveReservations(dir, subName, "i-web"); err != nil {
t.Fatalf("RemoveReservations : %v", err)
}
if _, err := os.Stat(filepath.Join(HostsDir(dir, subName), "i-db")); err != nil {
t.Errorf("i-db ne devait pas être touchée : %v", err)
}
}
func TestRemoveSubnetDirs(t *testing.T) {
dir := t.TempDir()
_ = WriteReservations(dir, subName, "i-web", []Reservation{{MAC: "aa", IP: "10.0.0.1"}})
if err := RemoveSubnetDirs(dir, subName); err != nil {
t.Fatalf("RemoveSubnetDirs : %v", err)
}
for _, d := range []string{HostsDir(dir, subName), OptsDir(dir, subName)} {
if _, err := os.Stat(d); !os.IsNotExist(err) {
t.Errorf("%s aurait dû être supprimé", d)
}
}
}
func TestUnitName(t *testing.T) {
if got := UnitName(subName); got != "dnsmasq@vp-admin_br-000001.service" {
t.Errorf("unit attendue dnsmasq@%s.service, obtenu %s", subName, got)
}
}