fix(rpc): handle updated entry point not found error format (#2650)

After the blockifier update, the format of the `entry_point_not_found` error has changed to return only the error's code. This change affected the behavior of RPC v7. To address this, explicit error handling has been implemented to properly manage the new error format.

Author: AnkushinDaniil

rpc/rpccore/rpccore.go

@@ -18,6 +18,7 @@ const (
 	ThrottledVMErr                = "VM throughput limit reached"
 	MaxBlocksBack                 = 1024
 	EntrypointNotFoundFelt string = "0x454e545259504f494e545f4e4f545f464f554e44"
+	ErrEPSNotFound                = "Entry point EntryPointSelector(%s) not found in contract."
 )
 
 //go:generate mockgen -destination=../mocks/mock_gateway_handler.go -package=mocks github.com/NethermindEth/juno/rpc Gateway

rpc/v6/trace.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"net/http"
 	"slices"
 
@@ -304,7 +305,10 @@ func (h *Handler) Call(funcCall *FunctionCall, id *BlockID) ([]*felt.Felt, *json
 		var strErr string
 		if len(res.Result) != 0 {
 			if res.Result[0].String() == rpccore.EntrypointNotFoundFelt {
-				strErr = rpccore.ErrEntrypointNotFound.Message
+				strErr = fmt.Sprintf(
+					rpccore.ErrEPSNotFound,
+					funcCall.EntryPointSelector.String(),
+				)
 			} else {
 				strErr = utils.FeltArrToString(res.Result)
 			}

rpc/v6/trace_test.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"testing"
 
 	"github.com/NethermindEth/juno/blockchain"
@@ -1158,7 +1159,13 @@ func TestCall(t *testing.T) {
 		}
 		expectedErr := rpccore.ErrContractError
 		expectedErr.Data = rpc.ContractErrorData{
-			RevertError: json.RawMessage(`"` + rpccore.ErrEntrypointNotFound.Message + `"`),
+			RevertError: json.RawMessage(`"` +
+				fmt.Sprintf(
+					rpccore.ErrEPSNotFound,
+					selector.String(),
+				) +
+				`"`,
+			),
 		}
 
 		headsHeader := &core.Header{

rpc/v7/trace.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"net/http"
 	"slices"
 	"strconv"
@@ -357,7 +358,10 @@ func (h *Handler) Call(funcCall FunctionCall, id BlockID) ([]*felt.Felt, *jsonrp
 		var strErr string
 		if len(res.Result) != 0 {
 			if res.Result[0].String() == rpccore.EntrypointNotFoundFelt {
-				strErr = rpccore.ErrEntrypointNotFound.Message
+				strErr = fmt.Sprintf(
+					rpccore.ErrEPSNotFound,
+					funcCall.EntryPointSelector.String(),
+				)
 			} else {
 				strErr = utils.FeltArrToString(res.Result)
 			}

rpc/v7/trace_test.go

@@ -1542,7 +1542,13 @@ func TestCall(t *testing.T) {
 		}
 		expectedErr := rpccore.ErrContractError
 		expectedErr.Data = rpcv7.ContractErrorData{
-			RevertError: json.RawMessage(`"` + rpccore.ErrEntrypointNotFound.Message + `"`),
+			RevertError: json.RawMessage(`"` +
+				fmt.Sprintf(
+					rpccore.ErrEPSNotFound,
+					selector.String(),
+				) +
+				`"`,
+			),
 		}
 
 		headsHeader := &core.Header{