Fixed random hash function for unit test.

contracts/blocksigner/blocksigner_test.go

@@ -9,9 +9,9 @@ import (
 	"github.com/ethereum/go-ethereum/accounts/abi/bind"
 	"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/contracts"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/crypto"
+	"math/rand"
 )
 
 var (
@@ -40,7 +40,7 @@ func TestBlockSigner(t *testing.T) {
 	}
 	contractBackend.ForEachStorageAt(ctx, blockSignerAddress, nil, f)
 
-	byte0 := contracts.RandomHash()
+	byte0 := randomHash()
 
 	// Test sign.
 	tx, err := blockSigner.Sign(big.NewInt(50), byte0)
@@ -57,4 +57,15 @@ func TestBlockSigner(t *testing.T) {
 	for _, it := range signers {
 		t.Log("signer", it.String())
 	}
+}
+
+// Generate random string.
+func randomHash() common.Hash {
+	letterBytes := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ123456789"
+	var b common.Hash
+	for i := range b {
+		rand.Seed(time.Now().UnixNano())
+		b[i] = letterBytes[rand.Intn(len(letterBytes))]
+	}
+	return b
 }

contracts/utils.go

@@ -14,8 +14,6 @@ import (
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/params"
 	"math/big"
-	"math/rand"
-	"time"
 )
 
 const (
@@ -224,15 +222,4 @@ func GetRewardBalancesRate(masterAddr common.Address, totalReward *big.Int, vali
 	log.Info("Holders reward", "holders", string(jsonHolders), "master node", masterAddr.String())
 
 	return balances, nil
-}
-
-// Generate random string.
-func RandomHash() common.Hash {
-	letterBytes := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ123456789"
-	var b common.Hash
-	for i := range b {
-		rand.Seed(time.Now().UnixNano())
-		b[i] = letterBytes[rand.Intn(len(letterBytes))]
-	}
-	return b
 }

contracts/utils_test.go

@@ -13,6 +13,7 @@ import (
 	"math/big"
 	"math/rand"
 	"testing"
+	"time"
 )
 
 func TestSendTxSign(t *testing.T) {
@@ -56,7 +57,7 @@ func TestSendTxSign(t *testing.T) {
 	signCount := int64(0)
 	blockHashes := make([]common.Hash, 10)
 	for i := int64(0); i < 10; i++ {
-		blockHash := RandomHash()
+		blockHash := randomHash()
 		blockHashes[i] = blockHash
 		randIndex := rand.Intn(len(keys))
 		accKey := keys[randIndex]
@@ -118,4 +119,15 @@ func TestSendTxSign(t *testing.T) {
 	//if rewards.Cmp(new(big.Int).SetUint64(14999999999999999996)) != 0 {
 	//	t.Errorf("Total reward not same reward checkpoint: %v - %v", chainReward, rewards)
 	//}
+}
+
+// Generate random string.
+func randomHash() common.Hash {
+	letterBytes := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ123456789"
+	var b common.Hash
+	for i := range b {
+		rand.Seed(time.Now().UnixNano())
+		b[i] = letterBytes[rand.Intn(len(letterBytes))]
+	}
+	return b
 }