diff --git a/common/types.go b/common/types.go
index cf564cc..7c6d657 100644
--- a/common/types.go
+++ b/common/types.go
@@ -4,7 +4,6 @@ import (
 	"database/sql"
 	"fmt"
 	"regexp"
-	"strings"
 	"time"
 
 	"github.com/sirupsen/logrus"
@@ -97,9 +96,7 @@ func (op *tracePlugin) Initialize(db *gorm.DB) (err error) {
 
 // GetDsn get dsn from map config
 func GetDsn(conf map[string]string) string {
-	if IsDockerCompose() {
-		conf["host"] = strings.Replace(conf["host"], "localhost", "host.docker.internal", 1)
-	}
+	conf["host"] = MayReplaceLocalhost(conf["host"])
 	// logrus.Printf("is docker: %t IS_DOCKER_COMPOSE: %s and conf host: %s", IsDockerCompose(), os.Getenv("IS_DOCKER_COMPOSE"), conf["host"])
 	return fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8mb4&parseTime=true&loc=Local", conf["user"], conf["password"], conf["host"], conf["port"], conf["database"])
 }
diff --git a/common/utils.go b/common/utils.go
index b059786..1389eea 100644
--- a/common/utils.go
+++ b/common/utils.go
@@ -163,9 +163,7 @@ func init() {
 	// RestyClient.SetRetryCount(2)
 	// RestyClient.SetRetryWaitTime(1 * time.Second)
 	RestyClient.OnBeforeRequest(func(c *resty.Client, r *resty.Request) error {
-		if IsDockerCompose() {
-			r.URL = strings.Replace(r.URL, "localhost", "host.docker.internal", 1)
-		}
+		r.URL = MayReplaceLocalhost(r.URL)
 		logrus.Printf("requesting: %s %s %v %v", r.Method, r.URL, r.Body, r.QueryParam)
 		return nil
 	})
@@ -247,7 +245,10 @@ func GetFuncName() string {
 	return runtime.FuncForPC(pc).Name()
 }
 
-// IsDockerCompose name is clear
-func IsDockerCompose() bool {
-	return os.Getenv("IS_DOCKER_COMPOSE") != ""
+// MayReplaceLocalhost when run in docker compose, change localhost to host.docker.internal for accessing host network
+func MayReplaceLocalhost(host string) string {
+	if os.Getenv("IS_DOCKER_COMPOSE") != "" {
+		return strings.Replace(host, "localhost", "host.docker.internal", 1)
+	}
+	return host
 }
diff --git a/common/utils_test.go b/common/utils_test.go
index 96407b6..f50e614 100644
--- a/common/utils_test.go
+++ b/common/utils_test.go
@@ -5,6 +5,7 @@ import (
 	"io"
 	"net/http"
 	"net/http/httptest"
+	"os"
 	"strings"
 	"testing"
 
@@ -95,4 +96,11 @@ func TestSome(t *testing.T) {
 
 	func1 := GetFuncName()
 	assert.Equal(t, true, strings.HasSuffix(func1, "TestSome"))
+
+	os.Setenv("IS_DOCKER_COMPOSE", "1")
+	s := MayReplaceLocalhost("http://localhost")
+	assert.Equal(t, "http://host.docker.internal", s)
+	os.Setenv("IS_DOCKER_COMPOSE", "")
+	s2 := MayReplaceLocalhost("http://localhost")
+	assert.Equal(t, "http://localhost", s2)
 }
diff --git a/dtmcli/types_test.go b/dtmcli/types_test.go
index 97a3d88..d47e232 100644
--- a/dtmcli/types_test.go
+++ b/dtmcli/types_test.go
@@ -1,6 +1,7 @@
 package dtmcli
 
 import (
+	"fmt"
 	"net/url"
 	"testing"
 
@@ -21,4 +22,8 @@ func TestTypes(t *testing.T) {
 	assert.Error(t, err)
 	_, err = TransInfoFromQuery(url.Values{})
 	assert.Error(t, err)
+
+	err2 := fmt.Errorf("an error")
+	err3 := CheckDtmResponse(nil, err2)
+	assert.Error(t, err2, err3)
 }
diff --git a/dtmsvr/dtmsvr_test.go b/dtmsvr/dtmsvr_test.go
index 3d5b538..26da56c 100644
--- a/dtmsvr/dtmsvr_test.go
+++ b/dtmsvr/dtmsvr_test.go
@@ -44,7 +44,8 @@ func TestCover(t *testing.T) {
 	defer handlePanic()
 	checkAffected(db.DB)
 
-	go CronExpiredTrans(1)
+	CronExpiredTrans(1)
+	go sleepCronTime()
 }
 
 func TestType(t *testing.T) {
diff --git a/dtmsvr/trans.go b/dtmsvr/trans.go
index 568a179..5d2beee 100644
--- a/dtmsvr/trans.go
+++ b/dtmsvr/trans.go
@@ -116,6 +116,7 @@ func (t *TransGlobal) Process(db *common.DB) {
 		if TransProcessedTestChan != nil {
 			logrus.Printf("processed: %s", t.Gid)
 			TransProcessedTestChan <- t.Gid
+			logrus.Printf("notified: %s", t.Gid)
 		}
 	}()
 	logrus.Printf("processing: %s status: %s", t.Gid, t.Status)
diff --git a/dtmsvr/trans_tcc.go b/dtmsvr/trans_tcc.go
index 0b8c597..8a53fb6 100644
--- a/dtmsvr/trans_tcc.go
+++ b/dtmsvr/trans_tcc.go
@@ -26,9 +26,6 @@ func (t *transTccProcessor) ExecBranch(db *common.DB, branch *TransBranch) {
 	if strings.Contains(body, "SUCCESS") {
 		t.touch(db, config.TransCronInterval)
 		branch.changeStatus(db, "succeed")
-	} else if branch.BranchType == "try" && strings.Contains(body, "FAILURE") {
-		t.touch(db, config.TransCronInterval)
-		branch.changeStatus(db, "failed")
 	} else {
 		panic(fmt.Errorf("unknown response: %s, will be retried", body))
 	}
diff --git a/dtmsvr/trans_tcc_test.go b/dtmsvr/trans_tcc_test.go
index 741026c..8383b05 100644
--- a/dtmsvr/trans_tcc_test.go
+++ b/dtmsvr/trans_tcc_test.go
@@ -2,6 +2,7 @@ package dtmsvr
 
 import (
 	"testing"
+	"time"
 
 	"github.com/stretchr/testify/assert"
 	"github.com/yedf/dtm/dtmcli"
@@ -33,9 +34,14 @@ func tccRollback(t *testing.T) {
 	err := dtmcli.TccGlobalTransaction(examples.DtmServer, gid, func(tcc *dtmcli.Tcc) (rerr error) {
 		resp, rerr := tcc.CallBranch(data, Busi+"/TransOut", Busi+"/TransOutConfirm", Busi+"/TransOutRevert")
 		assert.Contains(t, resp.String(), "SUCCESS")
+		examples.MainSwitch.TransOutRevertResult.SetOnce("PENDING")
 		_, rerr = tcc.CallBranch(data, Busi+"/TransIn", Busi+"/TransInConfirm", Busi+"/TransInRevert")
 		assert.Error(t, rerr)
 		return
 	})
 	assert.Error(t, err)
+	WaitTransProcessed(gid)
+	assert.Equal(t, "aborting", getTransStatus(gid))
+	CronTransOnce(60 * time.Second)
+	assert.Equal(t, "failed", getTransStatus(gid))
 }