fix of TestConsensusCallback()

gossip/c_block_callbacks_test.go

@@ -17,9 +17,10 @@ func TestConsensusCallback(t *testing.T) {
 	logger.SetTestMode(t)
 	require := require.New(t)
 
-	const rounds = 30
-
-	const validatorsNum = 3
+	const (
+		rounds        = 30
+		validatorsNum = 3
+	)
 
 	env := newTestEnv(2, validatorsNum)
 	defer env.Close()
@@ -32,11 +33,10 @@ func TestConsensusCallback(t *testing.T) {
 
 	for n := uint64(0); n < rounds; n++ {
 		// transfers
-		txs := make([]*types.Transaction, validatorsNum)
-		for i := idx.Validator(0); i < validatorsNum; i++ {
-			from := i % validatorsNum
-			to := 0
-			txs[i] = env.Transfer(idx.ValidatorID(from+1), idx.ValidatorID(to+1), utils.ToFtm(100))
+		txs := make([]*types.Transaction, 0, validatorsNum-1)
+		for to, from := 0, 1; from < validatorsNum; from++ {
+			transfer := env.Transfer(idx.ValidatorID(from+1), idx.ValidatorID(to+1), utils.ToFtm(100))
+			txs = append(txs, transfer)
 		}
 		tm := sameEpoch
 		if n%10 == 0 {
@@ -47,7 +47,7 @@ func TestConsensusCallback(t *testing.T) {
 		// subtract fees
 		for i, r := range rr {
 			fee := big.NewInt(0).Mul(new(big.Int).SetUint64(r.GasUsed), txs[i].GasPrice())
-			balances[i] = big.NewInt(0).Sub(balances[i], fee)
+			balances[i+1] = big.NewInt(0).Sub(balances[i+1], fee)
 		}
 		// balance movements
 		balances[0].Add(balances[0], utils.ToFtm(200))