feat(platform): batch vehicle service overview lookup

vehicle-data-platform/apps/api/internal/platform/service_test.go

@@ -0,0 +1,45 @@
+package platform
+
+import (
+	"context"
+	"net/url"
+	"testing"
+)
+
+type countingStore struct {
+	*MockStore
+	vehiclesCalls        int
+	vehicleRealtimeCalls int
+}
+
+func newCountingStore() *countingStore {
+	return &countingStore{MockStore: NewMockStore()}
+}
+
+func (s *countingStore) Vehicles(ctx context.Context, query url.Values) (Page[VehicleRow], error) {
+	s.vehiclesCalls++
+	return s.MockStore.Vehicles(ctx, query)
+}
+
+func (s *countingStore) VehicleRealtime(ctx context.Context, query url.Values) (Page[VehicleRealtimeRow], error) {
+	s.vehicleRealtimeCalls++
+	return s.MockStore.VehicleRealtime(ctx, query)
+}
+
+func TestVehicleServiceOverviewsUsesBatchDataPath(t *testing.T) {
+	store := newCountingStore()
+	service := NewService(store)
+	page, err := service.VehicleServiceOverviews(context.Background(), VehicleOverviewBatchQuery{
+		Keywords: []string{"粤AG18312", "LMRKH9AC2R1004087"},
+		Limit:    200,
+	})
+	if err != nil {
+		t.Fatalf("VehicleServiceOverviews returned error: %v", err)
+	}
+	if page.Total != 2 || len(page.Items) != 2 {
+		t.Fatalf("expected two overview rows, got %+v", page)
+	}
+	if store.vehiclesCalls > 1 || store.vehicleRealtimeCalls > 1 {
+		t.Fatalf("batch overview should avoid per-keyword store calls, vehicles=%d realtime=%d", store.vehiclesCalls, store.vehicleRealtimeCalls)
+	}
+}