test: fixed - get simulation error from sync mode

integration_test/wallet_test.go

@@ -3,6 +3,7 @@ package integrationtest
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"os"
 	"sync"
 
@@ -152,7 +153,7 @@ func (w *WalletInfo) SendTx(fee types.Coin, gasLimit int64, msg ...types.Msg) (s
 		return "", err
 	}
 
-	txHash, err := BroadcastTx(desc.ServiceConn, w.ChainId, txBytes, txtype.BroadcastMode_BROADCAST_MODE_ASYNC)
+	txHash, err := BroadcastTx(desc.ServiceConn, w.ChainId, txBytes, txtype.BroadcastMode_BROADCAST_MODE_SYNC)
 	if err != nil {
 		err = errors.Wrap(err, "SendTx, tx broadcast")
 		return "", err
@@ -249,6 +250,11 @@ func BroadcastTx(conn *grpc.ClientConn, chainId string, txBytes []byte, mode txt
 			return "", err
 		}
 
+		// if the tx works well in the sync mode, it returns as "[]"
+		if res.TxResponse.RawLog != "[]" {
+			return "", fmt.Errorf(res.TxResponse.RawLog)
+		}
+
 		return res.TxResponse.TxHash, nil
 	}