优化

internal/data/announcement_test.go

@@ -38,3 +38,22 @@ func TestAnnouncementRepositoryKeepsRawIDQuerySemantics(t *testing.T) {
 		t.Fatalf("raw invalid ID removed rows: count=%d", count)
 	}
 }
+
+func TestAnnouncementRepositoryPreservesSignedUserID(t *testing.T) {
+	data := newTransactionTestData(t)
+	repo := &announcementRepo{data: data}
+	ctx := context.Background()
+	userID := -1
+	item := &biz.Announcement{Title: "notice", UserID: &userID}
+	if err := repo.Create(ctx, item); err != nil {
+		t.Fatal(err)
+	}
+
+	found, err := repo.Find(ctx, "1")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if found.UserID == nil || *found.UserID != userID {
+		t.Fatalf("found user ID = %v, want %d", found.UserID, userID)
+	}
+}