Fixed mkdnode & added some tests

state/dump.go

@@ -35,6 +35,7 @@ func (self *StateDB) RawDump() World {
 
 		storageIt := stateObject.State.trie.Iterator()
 		for storageIt.Next() {
+			fmt.Println("value", storageIt.Value)
 			account.Storage[common.Bytes2Hex(storageIt.Key)] = common.Bytes2Hex(storageIt.Value)
 		}
 		world.Accounts[common.Bytes2Hex(it.Key)] = account

state/state_object.go

@@ -5,8 +5,8 @@ import (
 	"fmt"
 	"math/big"
 
-	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/ethereum/go-ethereum/trie"
 )

state/state_test.go

@@ -1,12 +1,14 @@
 package state
 
 import (
+	"fmt"
 	"math/big"
+	"testing"
 
 	checker "gopkg.in/check.v1"
 
-	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/ethdb"
 )
 
 type StateSuite struct {
@@ -61,6 +63,22 @@ func (s *StateSuite) SetUpTest(c *checker.C) {
 	s.state = New(nil, db)
 }
 
+func TestNull(t *testing.T) {
+	db, _ := ethdb.NewMemDatabase()
+	state := New(nil, db)
+
+	address := common.FromHex("0x823140710bf13990e4500136726d8b55")
+	state.NewStateObject(address)
+	//value := common.FromHex("0x823140710bf13990e4500136726d8b55")
+	value := make([]byte, 16)
+	fmt.Println("test it here", common.NewValue(value))
+	state.SetState(address, []byte{0}, value)
+	state.Update(nil)
+	state.Sync()
+	value = state.GetState(address, []byte{0})
+	fmt.Printf("res: %x\n", value)
+}
+
 func (s *StateSuite) TestSnapshot(c *checker.C) {
 	stateobjaddr := []byte("aa")
 	storageaddr := common.Big("0")

state/statedb.go

@@ -33,6 +33,10 @@ func New(root []byte, db common.Database) *StateDB {
 	return &StateDB{db: db, trie: trie, stateObjects: make(map[string]*StateObject), refund: make(map[string]*big.Int)}
 }
 
+func (self *StateDB) PrintRoot() {
+	self.trie.Trie.PrintRoot()
+}
+
 func (self *StateDB) EmptyLogs() {
 	self.logs = nil
 }