diff --git a/cluster/cluster_impl/available_cluster_invoker_test.go b/cluster/cluster_impl/available_cluster_invoker_test.go
index 344a1a02a690aa214a495178386eb40d8520ec2c..063100020ad36192a051d1e736af7264cd8df42d 100644
--- a/cluster/cluster_impl/available_cluster_invoker_test.go
+++ b/cluster/cluster_impl/available_cluster_invoker_test.go
@@ -20,7 +20,6 @@ package cluster_impl
 import (
 	"context"
 	"fmt"
-	"github.com/apache/dubbo-go/common/constant"
 	"strings"
 	"testing"
 )
@@ -34,6 +33,7 @@ import (
 	"github.com/apache/dubbo-go/cluster/directory"
 	"github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
 	"github.com/apache/dubbo-go/protocol"
 	"github.com/apache/dubbo-go/protocol/invocation"
diff --git a/cluster/cluster_impl/broadcast_cluster_invoker_test.go b/cluster/cluster_impl/broadcast_cluster_invoker_test.go
index 5b00c095cdb02b957e014e13c626edcfded8342d..08d0002ee79b2f3fda5a50ce90747c0aaad91932 100644
--- a/cluster/cluster_impl/broadcast_cluster_invoker_test.go
+++ b/cluster/cluster_impl/broadcast_cluster_invoker_test.go
@@ -21,7 +21,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/apache/dubbo-go/common/constant"
 	"testing"
 )
 
@@ -34,6 +33,7 @@ import (
 	"github.com/apache/dubbo-go/cluster/directory"
 	"github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
 	"github.com/apache/dubbo-go/protocol"
 	"github.com/apache/dubbo-go/protocol/invocation"
diff --git a/cluster/cluster_impl/failback_cluster_test.go b/cluster/cluster_impl/failback_cluster_test.go
index 9377c42a37fdf1846162e3141d9dac6da542de29..2e9ebc6e4b49b0827a1745bc25bf47cdf7544d49 100644
--- a/cluster/cluster_impl/failback_cluster_test.go
+++ b/cluster/cluster_impl/failback_cluster_test.go
@@ -20,7 +20,6 @@ package cluster_impl
 import (
 	"context"
 	"fmt"
-	"github.com/apache/dubbo-go/common/constant"
 	"sync"
 	"testing"
 	"time"
@@ -36,6 +35,7 @@ import (
 	"github.com/apache/dubbo-go/cluster/directory"
 	"github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
 	"github.com/apache/dubbo-go/protocol"
 	"github.com/apache/dubbo-go/protocol/invocation"
diff --git a/cluster/cluster_impl/failfast_cluster_test.go b/cluster/cluster_impl/failfast_cluster_test.go
index 23bcec51566e44f4e1d4e3a8825ef2e4c692e261..77e8e9c5da73bfc8bcf08dbd90351bfd23d7e651 100644
--- a/cluster/cluster_impl/failfast_cluster_test.go
+++ b/cluster/cluster_impl/failfast_cluster_test.go
@@ -20,7 +20,6 @@ package cluster_impl
 import (
 	"context"
 	"fmt"
-	"github.com/apache/dubbo-go/common/constant"
 	"testing"
 )
 
@@ -34,6 +33,7 @@ import (
 	"github.com/apache/dubbo-go/cluster/directory"
 	"github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
 	"github.com/apache/dubbo-go/protocol"
 	"github.com/apache/dubbo-go/protocol/invocation"
diff --git a/cluster/cluster_impl/failsafe_cluster_test.go b/cluster/cluster_impl/failsafe_cluster_test.go
index 665f41dda87b6137d9d24bc98e14871349d25388..d9a716e1ae65a84b605b4b7af1872b3a85dc9369 100644
--- a/cluster/cluster_impl/failsafe_cluster_test.go
+++ b/cluster/cluster_impl/failsafe_cluster_test.go
@@ -20,7 +20,6 @@ package cluster_impl
 import (
 	"context"
 	"fmt"
-	"github.com/apache/dubbo-go/common/constant"
 	"testing"
 )
 
@@ -34,6 +33,7 @@ import (
 	"github.com/apache/dubbo-go/cluster/directory"
 	"github.com/apache/dubbo-go/cluster/loadbalance"
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/common/extension"
 	"github.com/apache/dubbo-go/protocol"
 	"github.com/apache/dubbo-go/protocol/invocation"
diff --git a/cluster/loadbalance/least_active_test.go b/cluster/loadbalance/least_active_test.go
index 7b294ce94a2494577a001358b5ca643db1b0e8f1..34be17a4f311a374eefc56ba76885eef2a23645a 100644
--- a/cluster/loadbalance/least_active_test.go
+++ b/cluster/loadbalance/least_active_test.go
@@ -19,7 +19,6 @@ package loadbalance
 
 import (
 	"fmt"
-	"github.com/apache/dubbo-go/common/constant"
 	"testing"
 )
 
@@ -29,6 +28,7 @@ import (
 
 import (
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/protocol"
 	"github.com/apache/dubbo-go/protocol/invocation"
 )
diff --git a/cluster/loadbalance/round_robin_test.go b/cluster/loadbalance/round_robin_test.go
index 3e3b807144221f333f3a6ad9b053ccd14f295a15..5354bae458605ff56ec8a9b35d36730ecdc0babb 100644
--- a/cluster/loadbalance/round_robin_test.go
+++ b/cluster/loadbalance/round_robin_test.go
@@ -19,7 +19,6 @@ package loadbalance
 
 import (
 	"fmt"
-	"github.com/apache/dubbo-go/common/constant"
 	"strconv"
 	"testing"
 )
@@ -30,6 +29,7 @@ import (
 
 import (
 	"github.com/apache/dubbo-go/common"
+	"github.com/apache/dubbo-go/common/constant"
 	"github.com/apache/dubbo-go/protocol"
 	"github.com/apache/dubbo-go/protocol/invocation"
 )