diff --git a/pkg/shardedmutex/shardedmutex_test.go b/pkg/shardedmutex/shardedmutex_test.go
index a7d5f7d1df..2c6cf2eaa0 100644
--- a/pkg/shardedmutex/shardedmutex_test.go
+++ b/pkg/shardedmutex/shardedmutex_test.go
@@ -8,9 +8,12 @@ import (
 	"sync/atomic"
 	"testing"
 	"time"
+
+	"github.com/filecoin-project/venus/pkg/testhelpers/testflags"
 )
 
 func TestLockingDifferentShardsDoesNotBlock(t *testing.T) {
+	testflags.UnitTest(t)
 	shards := 16
 	sm := New(shards)
 	done := make(chan struct{})
@@ -29,6 +32,7 @@ func TestLockingDifferentShardsDoesNotBlock(t *testing.T) {
 	close(done)
 }
 func TestLockingSameShardsBlocks(t *testing.T) {
+	testflags.UnitTest(t)
 	shards := 16
 	sm := New(shards)
 	wg := sync.WaitGroup{}
@@ -60,6 +64,7 @@ func TestLockingSameShardsBlocks(t *testing.T) {
 }
 
 func TestShardedByString(t *testing.T) {
+	testflags.UnitTest(t)
 	shards := 16
 	sm := NewFor(maphash.String, shards)
 
diff --git a/pkg/util/merge_peer_test.go b/pkg/util/merge_peer_test.go
index 88bdf1cc84..13c2a201ac 100644
--- a/pkg/util/merge_peer_test.go
+++ b/pkg/util/merge_peer_test.go
@@ -3,10 +3,12 @@ package util
 import (
 	"testing"
 
+	"github.com/filecoin-project/venus/pkg/testhelpers/testflags"
 	"github.com/stretchr/testify/assert"
 )
 
 func TestMergePeers(t *testing.T) {
+	testflags.UnitTest(t)
 	t1 := MergePeers([]string{}, []string{"a"})
 	assert.Equal(t, []string{"a"}, t1)
 
diff --git a/tools/gengen/util/generator.go b/tools/gengen/util/generator.go
index e96f2f3dcd..2d04bd5456 100644
--- a/tools/gengen/util/generator.go
+++ b/tools/gengen/util/generator.go
@@ -119,7 +119,7 @@ func (g *GenesisGenerator) Init(cfg *GenesisCfg) error {
 	}
 	keys = append(keys, cfg.ImportKeys...)
 	g.keys = keys
-	vrKey, err := key.NewSecpKeyFromSeed(g.pnrg)
+	vrKey, err := key.NewBLSKeyFromSeed(g.pnrg)
 	if err != nil {
 		return err
 	}
diff --git a/venus-shared/testutil/value_provider_primitive.go b/venus-shared/testutil/value_provider_primitive.go
index 00366a140c..530d23f3b6 100644
--- a/venus-shared/testutil/value_provider_primitive.go
+++ b/venus-shared/testutil/value_provider_primitive.go
@@ -1,10 +1,10 @@
 package testutil
 
 import (
-	crand "crypto/rand"
 	"encoding/hex"
 	"math/rand"
 	"testing"
+	"time"
 
 	"github.com/stretchr/testify/require"
 )
@@ -20,7 +20,7 @@ const (
 	defaultBytesFixedSize = 16
 )
 
-func IntProvider(t *testing.T) int { return rand.Int() }
+func IntProvider(t *testing.T) int { return r.Int() }
 
 func IntRangedProvider(min, max int) func(*testing.T) int {
 	return func(t *testing.T) int {
@@ -29,14 +29,22 @@ func IntRangedProvider(min, max int) func(*testing.T) int {
 			t.Fatalf("invalid range [%d, %d)", min, max)
 		}
 
-		return min + rand.Intn(gap)
+		return min + r.Intn(gap)
 	}
 }
 
+var r = rand.New(rand.NewSource(time.Now().UnixNano()))
+
+func getRand() *rand.Rand {
+	seed := time.Now().UnixNano()
+	r = rand.New(rand.NewSource(seed))
+	return rand.New(rand.NewSource(seed))
+}
+
 func BytesFixedProvider(size int) func(*testing.T) []byte {
 	return func(t *testing.T) []byte {
 		b := make([]byte, size)
-		_, err := crand.Read(b[:])
+		_, err := r.Read(b[:])
 		require.NoError(t, err)
 		return b
 	}
@@ -45,7 +53,7 @@ func BytesFixedProvider(size int) func(*testing.T) []byte {
 func BytesAtMostProvider(size int) func(*testing.T) []byte {
 	return func(t *testing.T) []byte {
 		b := make([]byte, rand.Intn(size))
-		_, err := crand.Read(b[:])
+		_, err := r.Read(b[:])
 		require.NoError(t, err)
 		return b
 	}
diff --git a/venus-shared/testutil/value_provider_primitive_test.go b/venus-shared/testutil/value_provider_primitive_test.go
index 849b5069cf..8efaedcc7a 100644
--- a/venus-shared/testutil/value_provider_primitive_test.go
+++ b/venus-shared/testutil/value_provider_primitive_test.go
@@ -2,7 +2,6 @@ package testutil
 
 import (
 	"encoding/hex"
-	"math/rand"
 	"reflect"
 	"testing"
 	"time"
@@ -11,12 +10,6 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func getRand() *rand.Rand {
-	seed := time.Now().UnixNano()
-	rand.New(rand.NewSource(seed))
-	return rand.New(rand.NewSource(seed))
-}
-
 func TestDefaultBytes(t *testing.T) {
 	tf.UnitTest(t)