even more refactoring

grpc_integration_test.go

@@ -12,7 +12,7 @@ import (
 
 // TestCartActorMutationAndState validates end-to-end gRPC mutation + state retrieval
 // against a locally started gRPC server (single-node scenario).
-// This test uses the oneof MutationEnvelope directly to avoid hitting external product
+// This test uses the new per-mutation AddItem RPC (breaking v2 API) to avoid external product fetch logic
 // fetching logic (FetchItem) which would require network I/O.
 func TestCartActorMutationAndState(t *testing.T) {
 	// Setup local grain pool + synced pool (no discovery, single host)
@@ -60,32 +60,29 @@ func TestCartActorMutationAndState(t *testing.T) {
 		Country:  "se",
 	}
 
-	// Build oneof envelope directly (no legacy handler/enum)
-	envelope := &messages.MutationEnvelope{
+	// Issue AddItem RPC directly (breaking v2 API)
+	addResp, err := cartClient.AddItem(context.Background(), &messages.AddItemRequest{
 		CartId:          cartID,
 		ClientTimestamp: time.Now().Unix(),
-		Mutation: &messages.MutationEnvelope_AddItem{
-			AddItem: addItem,
-		},
-	}
-
-	// Issue Mutate RPC
-	mutResp, err := cartClient.Mutate(context.Background(), envelope)
+		Payload:         addItem,
+	})
 	if err != nil {
-		t.Fatalf("Mutate RPC error: %v", err)
+		t.Fatalf("AddItem RPC error: %v", err)
 	}
-	if mutResp.StatusCode != 200 {
-		t.Fatalf("Mutate returned non-200 status: %d, error: %s", mutResp.StatusCode, mutResp.GetError())
+	if addResp.StatusCode != 200 {
+		t.Fatalf("AddItem returned non-200 status: %d, error: %s", addResp.StatusCode, addResp.GetError())
 	}
 
-	// Validate the response state
-	state := mutResp.GetState()
+	// Validate the response state (from AddItem)
+	state := addResp.GetState()
 	if state == nil {
-		t.Fatalf("Mutate response state is nil")
+		t.Fatalf("AddItem response state is nil")
 	}
 
+	// (Removed obsolete Mutate response handling)
+
 	if len(state.Items) != 1 {
-		t.Fatalf("Expected 1 item after mutation, got %d", len(state.Items))
+		t.Fatalf("Expected 1 item after AddItem, got %d", len(state.Items))
 	}
 	if state.Items[0].Sku != "test-sku" {
 		t.Fatalf("Unexpected item SKU: %s", state.Items[0].Sku)