owpengram-server/internal/store/memory/code_cas_test.go

213 lines
6.5 KiB
Go

package memory
import (
"context"
"fmt"
"sync"
"testing"
"time"
"telesrv/internal/store"
)
func TestCodeStoreRevisionCAS(t *testing.T) {
ctx := context.Background()
codes := NewCodeStore()
record := store.PhoneCode{
Version: store.PhoneCodeVersionCurrent,
Phone: "15550016201",
Code: "111111",
Channel: "email_setup",
PendingEmail: "first@example.test",
MaxAttempts: 5,
}
if err := codes.Set(ctx, "email-fixed", record, time.Minute); err != nil {
t.Fatal(err)
}
snapshot, found, err := codes.GetSnapshot(ctx, "email-fixed")
if err != nil || !found || snapshot.Revision == "" || snapshot.Record.Revision != snapshot.Revision {
t.Fatalf("snapshot=%+v found=%v err=%v", snapshot, found, err)
}
originalExpiry := codes.m["email-fixed"].expires
next := snapshot.Record
next.Code = "222222"
next.Attempts = 1
if applied, err := codes.CompareAndUpdate(ctx, "email-fixed", "stale-token", next); err != nil || applied {
t.Fatalf("wrong-token update applied=%v err=%v", applied, err)
}
unchanged, found, err := codes.GetSnapshot(ctx, "email-fixed")
if err != nil || !found || unchanged.Revision != snapshot.Revision || unchanged.Record.Code != record.Code {
t.Fatalf("after wrong-token snapshot=%+v found=%v err=%v", unchanged, found, err)
}
if applied, err := codes.CompareAndUpdate(ctx, "email-fixed", snapshot.Revision, next); err != nil || !applied {
t.Fatalf("current-token update applied=%v err=%v", applied, err)
}
updated, found, err := codes.GetSnapshot(ctx, "email-fixed")
if err != nil || !found || updated.Record.Code != next.Code || updated.Record.Attempts != 1 || updated.Revision == snapshot.Revision {
t.Fatalf("updated snapshot=%+v found=%v err=%v", updated, found, err)
}
if expiry := codes.m["email-fixed"].expires; !expiry.Equal(originalExpiry) {
t.Fatalf("CAS update expiry=%v, want unchanged %v", expiry, originalExpiry)
}
if applied, err := codes.CompareAndDelete(ctx, "email-fixed", snapshot.Revision); err != nil || applied {
t.Fatalf("stale delete applied=%v err=%v", applied, err)
}
if applied, err := codes.CompareAndDelete(ctx, "email-fixed", updated.Revision); err != nil || !applied {
t.Fatalf("current delete applied=%v err=%v", applied, err)
}
if _, found, _ := codes.GetSnapshot(ctx, "email-fixed"); found {
t.Fatal("CAS-deleted code remains")
}
}
func TestCodeStoreRevisionCASFailClosedAndScopeIsolation(t *testing.T) {
ctx := context.Background()
codes := NewCodeStore()
now := time.Now().Add(time.Minute)
codes.m["legacy"] = codeEntry{
code: store.PhoneCode{Version: 0, Phone: "15550016202", Code: "12345"},
expires: now,
}
if _, found, err := codes.GetSnapshot(ctx, "legacy"); err != nil || found {
t.Fatalf("legacy snapshot found=%v err=%v", found, err)
}
if _, found := codes.m["legacy"]; found {
t.Fatal("legacy snapshot record was not deleted")
}
codes.m["no-revision"] = codeEntry{
code: store.PhoneCode{
Version: store.PhoneCodeVersionCurrent,
Phone: "15550016202",
Code: "12345",
},
expires: now,
}
if _, found, err := codes.GetSnapshot(ctx, "no-revision"); err != nil || found {
t.Fatalf("revisionless snapshot found=%v err=%v", found, err)
}
if _, found := codes.m["no-revision"]; found {
t.Fatal("revisionless snapshot record was not deleted")
}
scoped := store.PhoneCode{
Version: store.PhoneCodeVersionCurrent,
Phone: "15550016203",
Code: "12345",
Purpose: store.PhoneCodePurposeChangePhone,
UserID: 42,
AuthKeyID: [8]byte{1},
}
if err := codes.Set(ctx, "scoped-cas", scoped, time.Minute); err != nil {
t.Fatal(err)
}
snapshot, found, err := codes.GetSnapshot(ctx, "scoped-cas")
if err != nil || !found {
t.Fatalf("scoped snapshot found=%v err=%v", found, err)
}
if applied, err := codes.CompareAndUpdate(ctx, "scoped-cas", snapshot.Revision, snapshot.Record); err != nil || applied {
t.Fatalf("scoped update applied=%v err=%v", applied, err)
}
if applied, err := codes.CompareAndDelete(ctx, "scoped-cas", snapshot.Revision); err != nil || applied {
t.Fatalf("scoped delete applied=%v err=%v", applied, err)
}
if _, found, _ := codes.Get(ctx, "scoped-cas"); !found {
t.Fatal("generic CAS mutated scoped code")
}
}
func TestCodeStoreRevisionCASPreventsABAAndHasSingleWinner(t *testing.T) {
ctx := context.Background()
codes := NewCodeStore()
record := store.PhoneCode{
Version: store.PhoneCodeVersionCurrent,
Phone: "15550016204",
Code: "123456",
Channel: "email_change",
}
if err := codes.Set(ctx, "aba", record, time.Minute); err != nil {
t.Fatal(err)
}
old, found, err := codes.GetSnapshot(ctx, "aba")
if err != nil || !found {
t.Fatalf("old snapshot found=%v err=%v", found, err)
}
if err := codes.Set(ctx, "aba", record, time.Minute); err != nil {
t.Fatal(err)
}
current, found, err := codes.GetSnapshot(ctx, "aba")
if err != nil || !found || current.Revision == old.Revision {
t.Fatalf("replacement snapshot=%+v old=%+v found=%v err=%v", current, old, found, err)
}
if applied, err := codes.CompareAndDelete(ctx, "aba", old.Revision); err != nil || applied {
t.Fatalf("ABA stale delete applied=%v err=%v", applied, err)
}
const workers = 64
results := make(chan bool, workers)
errs := make(chan error, workers)
var wg sync.WaitGroup
for i := 0; i < workers; i++ {
wg.Add(1)
go func(index int) {
defer wg.Done()
next := current.Record
next.Code = fmt.Sprintf("%06d", index)
applied, err := codes.CompareAndUpdate(ctx, "aba", current.Revision, next)
if err != nil {
errs <- err
return
}
results <- applied
}(i)
}
wg.Wait()
close(results)
close(errs)
for err := range errs {
t.Fatalf("concurrent CAS update: %v", err)
}
winners := 0
for applied := range results {
if applied {
winners++
}
}
if winners != 1 {
t.Fatalf("concurrent CAS update winners=%d, want 1", winners)
}
winner, found, err := codes.GetSnapshot(ctx, "aba")
if err != nil || !found || winner.Revision == current.Revision {
t.Fatalf("winner snapshot=%+v found=%v err=%v", winner, found, err)
}
results = make(chan bool, workers)
errs = make(chan error, workers)
for i := 0; i < workers; i++ {
wg.Add(1)
go func() {
defer wg.Done()
applied, err := codes.CompareAndDelete(ctx, "aba", winner.Revision)
if err != nil {
errs <- err
return
}
results <- applied
}()
}
wg.Wait()
close(results)
close(errs)
for err := range errs {
t.Fatalf("concurrent CAS delete: %v", err)
}
winners = 0
for applied := range results {
if applied {
winners++
}
}
if winners != 1 {
t.Fatalf("concurrent CAS delete winners=%d, want 1", winners)
}
}