diff --git a/client/client_test.go b/client/client_test.go
index 305d054fa18..02fdd4621f3 100644
--- a/client/client_test.go
+++ b/client/client_test.go
@@ -48,17 +48,19 @@ func TestClientCtx(t *testing.T) {
 	start := time.Now()
 	ctx, cancel := context.WithTimeout(context.TODO(), time.Second*3)
 	defer cancel()
-	_, err := NewClientWithContext(ctx, caller.TestComponent,
+	cli, err := NewClientWithContext(ctx, caller.TestComponent,
 		[]string{testClientURL}, SecurityOption{})
 	re.Error(err)
+	defer cli.Close()
 	re.Less(time.Since(start), time.Second*5)
 }
 
 func TestClientWithRetry(t *testing.T) {
 	re := require.New(t)
 	start := time.Now()
-	_, err := NewClientWithContext(context.TODO(), caller.TestComponent,
+	cli, err := NewClientWithContext(context.TODO(), caller.TestComponent,
 		[]string{testClientURL}, SecurityOption{}, opt.WithMaxErrorRetry(5))
 	re.Error(err)
+	defer cli.Close()
 	re.Less(time.Since(start), time.Second*10)
 }
diff --git a/tests/integrations/client/client_test.go b/tests/integrations/client/client_test.go
index 9cfad7a1a6b..e042c969dfe 100644
--- a/tests/integrations/client/client_test.go
+++ b/tests/integrations/client/client_test.go
@@ -1910,6 +1910,7 @@ func TestGetRegionWithBackoff(t *testing.T) {
 	// Initialize the client with context and backoff
 	client, err := pd.NewClientWithContext(ctx, caller.TestComponent, endpoints, pd.SecurityOption{})
 	re.NoError(err)
+	defer client.Close()
 
 	// Record the start time
 	start := time.Now()
diff --git a/tests/integrations/mcs/tso/keyspace_group_manager_test.go b/tests/integrations/mcs/tso/keyspace_group_manager_test.go
index 5326a954f84..87d1b46d5a0 100644
--- a/tests/integrations/mcs/tso/keyspace_group_manager_test.go
+++ b/tests/integrations/mcs/tso/keyspace_group_manager_test.go
@@ -464,6 +464,7 @@ func (suite *tsoKeyspaceGroupManagerTestSuite) dispatchClient(
 	wg.Add(1)
 	go func() {
 		defer wg.Done()
+		defer tsoClient.Close()
 		for {
 			select {
 			case <-ctx.Done():
diff --git a/tests/integrations/realcluster/cluster_id_test.go b/tests/integrations/realcluster/cluster_id_test.go
index 0e113e79015..0a324de582c 100644
--- a/tests/integrations/realcluster/cluster_id_test.go
+++ b/tests/integrations/realcluster/cluster_id_test.go
@@ -53,10 +53,11 @@ func (s *clusterIDSuite) TestClientClusterID() {
 
 	pdEndpoints := getPDEndpoints(re)
 	// Try to create a client with the mixed endpoints.
-	_, err := pd.NewClientWithContext(
+	cli, err := pd.NewClientWithContext(
 		ctx, caller.TestComponent, pdEndpoints,
 		pd.SecurityOption{}, opt.WithMaxErrorRetry(1),
 	)
 	re.Error(err)
+	defer cli.Close()
 	re.Contains(err.Error(), "unmatched cluster id")
 }
diff --git a/tests/integrations/realcluster/reboot_pd_test.go b/tests/integrations/realcluster/reboot_pd_test.go
index 018ee7f74a5..4120c99a9de 100644
--- a/tests/integrations/realcluster/reboot_pd_test.go
+++ b/tests/integrations/realcluster/reboot_pd_test.go
@@ -41,6 +41,7 @@ func (s *rebootPDSuite) TestReloadLabel() {
 	ctx := context.Background()
 
 	pdHTTPCli := http.NewClient("pd-real-cluster-test", getPDEndpoints(re))
+	defer pdHTTPCli.Close()
 	resp, err := pdHTTPCli.GetStores(ctx)
 	re.NoError(err)
 	re.NotEmpty(resp.Stores)
diff --git a/tests/integrations/realcluster/scheduler_test.go b/tests/integrations/realcluster/scheduler_test.go
index 0ef51f45df6..3df7226bcd6 100644
--- a/tests/integrations/realcluster/scheduler_test.go
+++ b/tests/integrations/realcluster/scheduler_test.go
@@ -52,6 +52,7 @@ func (s *schedulerSuite) TestTransferLeader() {
 	defer cancel()
 
 	pdHTTPCli := http.NewClient("pd-real-cluster-test", getPDEndpoints(re))
+	defer pdHTTPCli.Close()
 	resp, err := pdHTTPCli.GetLeader(ctx)
 	re.NoError(err)
 	oldLeader := resp.Name
@@ -102,6 +103,7 @@ func (s *schedulerSuite) TestRegionLabelDenyScheduler() {
 	defer cancel()
 
 	pdHTTPCli := http.NewClient("pd-real-cluster-test", getPDEndpoints(re))
+	defer pdHTTPCli.Close()
 	regions, err := pdHTTPCli.GetRegions(ctx)
 	re.NoError(err)
 	re.NotEmpty(regions.Regions)
@@ -211,6 +213,7 @@ func (s *schedulerSuite) TestGrantOrEvictLeaderTwice() {
 	defer cancel()
 
 	pdHTTPCli := http.NewClient("pd-real-cluster-test", getPDEndpoints(re))
+	defer pdHTTPCli.Close()
 	regions, err := pdHTTPCli.GetRegions(ctx)
 	re.NoError(err)
 	re.NotEmpty(regions.Regions)
diff --git a/tests/server/api/api_test.go b/tests/server/api/api_test.go
index e99ff151490..90ef784e75a 100644
--- a/tests/server/api/api_test.go
+++ b/tests/server/api/api_test.go
@@ -945,9 +945,9 @@ func TestRemovingProgress(t *testing.T) {
 	// store 2: (30-10)/(30+40) ~= 0.285
 	re.Equal("0.29", fmt.Sprintf("%.2f", p.Progress))
 	// store 2: 20/10s = 2
-	re.LessOrEqual(2.0, p.CurrentSpeed)
+	re.LessOrEqual(p.CurrentSpeed, 2.0)
 	// store 2: (10+40)/2 = 25s
-	re.GreaterOrEqual(25.0, p.LeftSeconds)
+	re.GreaterOrEqual(p.LeftSeconds, 25.0)
 
 	re.NoError(failpoint.Disable("github.com/tikv/pd/server/cluster/highFrequencyClusterJobs"))
 }
@@ -1150,8 +1150,8 @@ func TestPreparingProgress(t *testing.T) {
 	re.NoError(json.Unmarshal(output, &p))
 	re.Equal("preparing", p.Action)
 	re.Equal("0.05", fmt.Sprintf("%.2f", p.Progress))
-	re.LessOrEqual(1.0, p.CurrentSpeed)
-	re.GreaterOrEqual(179.0, p.LeftSeconds)
+	re.LessOrEqual(p.CurrentSpeed, 1.0)
+	re.GreaterOrEqual(p.LeftSeconds, 179.0)
 	re.NoError(failpoint.Disable("github.com/tikv/pd/server/cluster/highFrequencyClusterJobs"))
 }