diff --git a/test/bba/node.go b/test/bba/node.go
index 11a0a4a..779fd53 100644
--- a/test/bba/node.go
+++ b/test/bba/node.go
@@ -109,7 +109,3 @@ func (n *Node) Info() cleisthenes.Address {
 func (n *Node) Result() (cleisthenes.Binary, bool) {
 	return n.bba.Result()
 }
-
-func (n *Node) Trace() {
-	n.bba.Trace()
-}
diff --git a/test/bba/simulation_test.go b/test/bba/simulation_test.go
index bd702bb..5912912 100644
--- a/test/bba/simulation_test.go
+++ b/test/bba/simulation_test.go
@@ -174,17 +174,6 @@ func watchResult(nodeList []*bba.Node) *simulationResult {
 					addr: node.Info(), value: result})
 			}
 		}
-
-		time.Sleep(1 * time.Second)
-		iLogger.Info(nil, "sleep ...")
-		iLogger.Info(nil, "========================trace====================")
-		for _, node := range nodeList {
-			iLogger.Info(nil, "------------------------")
-			iLogger.Info(nil, node.Info().String())
-			iLogger.Info(nil, "------------------------")
-			node.Trace()
-		}
-
 		if len(simulationResult.outputList) == len(nodeList) {
 			break
 		}
diff --git a/test/rbc/rbc_test.go b/test/rbc/rbc_test.go
index 1602a0b..a6a4a66 100644
--- a/test/rbc/rbc_test.go
+++ b/test/rbc/rbc_test.go
@@ -8,6 +8,8 @@ import (
 	"testing"
 	"time"
 
+	"github.com/DE-labtory/iLogger"
+
 	"github.com/DE-labtory/cleisthenes/test/util"
 
 	"github.com/DE-labtory/cleisthenes"
@@ -72,6 +74,8 @@ func RBCTest(proposer *Node, nodeList []*Node, data []byte) error {
 			if value := node.Value(proposer.address); value != nil {
 				if !bytes.Equal(value, data) {
 					return errors.New(fmt.Sprintf("node : %s fail to reach an agreement - expected : %s, got : %s\n", node.address.String(), data, value))
+				} else {
+					iLogger.Infof(nil, "node : %s success to reach an agreement", node.address.String())
 				}
 				doneCnt++
 				break