diff --git a/dtmsvr/trans_class.go b/dtmsvr/trans_class.go
index e9dc48c..47bf492 100644
--- a/dtmsvr/trans_class.go
+++ b/dtmsvr/trans_class.go
@@ -19,11 +19,12 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
+// triggerType trigger transaction type
 type triggerType int
 
 const (
-	triggerManual triggerType = iota //manual trigger
-	triggerCron                      //cron trigger
+	triggerManual triggerType = iota //triggerManual manual trigger
+	triggerCron                      //triggerCron cron trigger
 )
 
 // TransGlobal global transaction
diff --git a/test/msg_delay_test.go b/test/msg_delay_test.go
index 32fe378..2c6165c 100644
--- a/test/msg_delay_test.go
+++ b/test/msg_delay_test.go
@@ -2,11 +2,9 @@ package test
 
 import (
 	"testing"
-	"time"
 
 	"github.com/dtm-labs/dtm/dtmcli"
 	"github.com/dtm-labs/dtm/dtmcli/dtmimp"
-	"github.com/dtm-labs/dtm/dtmsvr"
 	"github.com/dtm-labs/dtm/dtmutil"
 	"github.com/dtm-labs/dtm/test/busi"
 	"github.com/stretchr/testify/assert"
@@ -25,14 +23,10 @@ func TestMsgDelayNormal(t *testing.T) {
 	gid := dtmimp.GetFuncName()
 	msg := genMsgDelay(gid)
 	msg.Submit()
-	assert.Equal(t, StatusSubmitted, getTransStatus(msg.Gid))
 	waitTransProcessed(msg.Gid)
 	assert.Equal(t, []string{StatusPrepared, StatusPrepared}, getBranchesStatus(msg.Gid))
 	assert.Equal(t, StatusSubmitted, getTransStatus(msg.Gid))
-	time.Sleep(2 * time.Second)
-	dtmsvr.CronForwardDuration = 0
-	cronTransOnce(t, gid)
+	cronTransOnceForwardNow(t, gid, 2)
 	assert.Equal(t, []string{StatusSucceed, StatusSucceed}, getBranchesStatus(msg.Gid))
 	assert.Equal(t, StatusSucceed, getTransStatus(msg.Gid))
-	dtmsvr.CronForwardDuration = 180 * time.Second
 }