diff --git a/cluster/agent_test.go b/cluster/agent_test.go
index 0cf30c7..bfd4813 100644
--- a/cluster/agent_test.go
+++ b/cluster/agent_test.go
@@ -51,9 +51,11 @@ func TestCluster(t *testing.T) {
 		BindPort:      bindPort1,
 		RaftPort:      raftPort1,
 		RaftBootstrap: true,
+		RaftDir:       t.TempDir(),
 		GrpcEnable:    false,
 		Members:       members,
 		DiscoveryWay:  config.DiscoveryWaySerf,
+		NodesFileDir:  t.TempDir(),
 	}
 	agent1 := NewAgent(conf1)
 	err = agent1.Start()
@@ -66,9 +68,11 @@ func TestCluster(t *testing.T) {
 		BindPort:      bindPort2,
 		RaftPort:      raftPort2,
 		RaftBootstrap: false,
+		RaftDir:       t.TempDir(),
 		GrpcEnable:    false,
 		Members:       members,
 		DiscoveryWay:  config.DiscoveryWaySerf,
+		NodesFileDir:  t.TempDir(),
 	}
 	agent2 := NewAgent(conf2)
 	err = agent2.Start()
@@ -82,9 +86,11 @@ func TestCluster(t *testing.T) {
 		BindPort:      bindPort3,
 		RaftPort:      raftPort3,
 		RaftBootstrap: false,
+		RaftDir:       t.TempDir(),
 		GrpcEnable:    false,
 		Members:       members,
 		DiscoveryWay:  config.DiscoveryWaySerf,
+		NodesFileDir:  t.TempDir(),
 	}
 	agent3 := NewAgent(conf3)
 	err = agent3.Start()
diff --git a/cluster/raft/hashicorp/peer.go b/cluster/raft/hashicorp/peer.go
index e760c55..6dbcd72 100644
--- a/cluster/raft/hashicorp/peer.go
+++ b/cluster/raft/hashicorp/peer.go
@@ -197,7 +197,7 @@ func (p *Peer) Stop() {
 	}
 
 	// snapshot
-	if err := p.snapshot().Error(); err != "" {
+	if err := p.snapshot(); err != nil {
 		log.Warn("failed to create snapshot!")
 	}
 
diff --git a/cluster/raft/hashicorp/peer_test.go b/cluster/raft/hashicorp/peer_test.go
new file mode 100644
index 0000000..e847cf9
--- /dev/null
+++ b/cluster/raft/hashicorp/peer_test.go
@@ -0,0 +1,133 @@
+package hashicorp
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"github.com/hashicorp/raft"
+	"github.com/stretchr/testify/require"
+	"github.com/wind-c/comqtt/v2/cluster/message"
+	"github.com/wind-c/comqtt/v2/config"
+	"github.com/wind-c/comqtt/v2/mqtt/packets"
+)
+
+func createTestPeer(t *testing.T) *Peer {
+	conf := &config.Cluster{
+		NodeName:      "node1",
+		BindAddr:      "127.0.0.1",
+		RaftImpl:      config.RaftImplHashicorp,
+		RaftPort:      8946,
+		RaftDir:       t.TempDir(),
+		RaftBootstrap: true,
+	}
+	notifyCh := make(chan *message.Message, 1)
+	peer, err := Setup(conf, notifyCh)
+	require.Nil(t, err)
+	return peer
+}
+
+func TestJoinAndLeave(t *testing.T) {
+	peer := createTestPeer(t)
+	defer peer.Stop()
+
+	nodeID := "node2"
+	nodeAddr := "127.0.0.1:8947"
+
+	// Test Join
+	err := peer.Join(nodeID, nodeAddr)
+	require.NoError(t, err)
+
+	configFuture := peer.raft.GetConfiguration()
+	require.NoError(t, configFuture.Error())
+
+	var found bool
+	for _, server := range configFuture.Configuration().Servers {
+		if server.ID == raft.ServerID(nodeID) && server.Address == raft.ServerAddress(nodeAddr) {
+			found = true
+			break
+		}
+	}
+	require.True(t, found)
+
+	// Test Leave
+	err = peer.Leave(nodeID)
+	require.NoError(t, err)
+
+	configFuture = peer.raft.GetConfiguration()
+	require.NoError(t, configFuture.Error())
+
+	found = false
+	for _, server := range configFuture.Configuration().Servers {
+		if server.ID == raft.ServerID(nodeID) && server.Address == raft.ServerAddress(nodeAddr) {
+			found = true
+			break
+		}
+	}
+	require.False(t, found)
+}
+
+func TestProposeAndLookup(t *testing.T) {
+	peer := createTestPeer(t)
+	defer peer.Stop()
+
+	msg := &message.Message{
+		Type:    packets.Subscribe,
+		NodeID:  "node1",
+		Payload: []byte("filter"),
+	}
+
+	err := peer.Propose(msg)
+	require.NoError(t, err)
+
+	key := "filter"
+	expectedValue := "node1"
+
+	time.Sleep(2 * time.Second)
+
+	result := peer.Lookup(key)
+	require.Equal(t, []string{expectedValue}, result)
+}
+
+func TestIsApplyRight(t *testing.T) {
+	peer := createTestPeer(t)
+	defer peer.Stop()
+
+	require.True(t, peer.IsApplyRight())
+}
+
+func TestGetLeader(t *testing.T) {
+	peer := createTestPeer(t)
+	defer peer.Stop()
+
+	addr, id := peer.GetLeader()
+	require.Equal(t, "127.0.0.1:8946", addr)
+	require.Equal(t, "node1", id)
+}
+
+func TestGenPeersFile(t *testing.T) {
+	peer := createTestPeer(t)
+	defer peer.Stop()
+
+	file := filepath.Join(t.TempDir(), "peers.json")
+
+	err := peer.GenPeersFile(file)
+	require.NoError(t, err)
+
+	_, err = os.Stat(file)
+	require.False(t, os.IsNotExist(err))
+
+	content, err := os.ReadFile(file)
+	require.NoError(t, err)
+
+	expectedContent := `[
+		{
+			"id": "node1",
+			"address": "127.0.0.1:8946",
+			"non_voter":false
+		}
+	]`
+
+	require.JSONEq(t, expectedContent, string(content))
+}