Sub2API v1.0 - AI API 网关（二开初始版本，基于上游 Wei-Shaw/sub2api）

backend/internal/pkg/xai/oauth_redis_fallback_test.go

@@ -0,0 +1,35 @@
+//go:build unit
+
+package xai
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/alicebob/miniredis/v2"
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/require"
+)
+
+func TestSessionStoreRedisFallbackIsLimitedToFailedWrites(t *testing.T) {
+	mr := miniredis.RunT(t)
+	client := redis.NewClient(&redis.Options{Addr: mr.Addr(), MaxRetries: -1})
+	t.Cleanup(func() { _ = client.Close() })
+	store := NewRedisSessionStore(client)
+	defer store.Stop()
+	session := func(state string) *OAuthSession { return &OAuthSession{State: state, CreatedAt: time.Now()} }
+
+	store.Set("remote", session("remote"))
+	require.NoError(t, store.remote.Delete(context.Background(), "remote"))
+	_, ok := store.Get("remote")
+	require.False(t, ok, "a remote miss must not revive the stale local copy")
+
+	mr.Close()
+	store.Set("local-only", session("local"))
+	got, ok := store.Get("local-only")
+	require.True(t, ok)
+	require.Equal(t, "local", got.State)
+	require.True(t, store.TryConsumeSession("local-only"))
+	require.False(t, store.TryConsumeSession("local-only"))
+}