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

backend/internal/handler/dto/mappers_deleted_user_test.go

@@ -0,0 +1,20 @@
+package dto
+
+import (
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/require"
+)
+
+func TestUserFromServiceShallow_MapsDeletedAt(t *testing.T) {
+	ts := time.Date(2026, 5, 28, 10, 0, 0, 0, time.UTC)
+
+	deleted := UserFromServiceShallow(&service.User{ID: 1, Email: "d@test.com", DeletedAt: &ts})
+	require.NotNil(t, deleted.DeletedAt)
+	require.Equal(t, ts, *deleted.DeletedAt)
+
+	active := UserFromServiceShallow(&service.User{ID: 2, Email: "a@test.com"})
+	require.Nil(t, active.DeletedAt, "active user must have nil DeletedAt")
+}