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// Copyright 2014 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package state
import (
"math/big"
"testing"
checker "gopkg.in/check.v1"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/ethdb"
)
type StateSuite struct {
state *StateDB
}
var _ = checker.Suite(&StateSuite{})
var toAddr = common.BytesToAddress
func (s *StateSuite) TestDump(c *checker.C) {
return
// generate a few entries
obj1 := s.state.GetOrNewStateObject(toAddr([]byte{0x01}))
obj1.AddBalance(big.NewInt(22))
obj2 := s.state.GetOrNewStateObject(toAddr([]byte{0x01, 0x02}))
obj2.SetCode([]byte{3, 3, 3, 3, 3, 3, 3})
obj3 := s.state.GetOrNewStateObject(toAddr([]byte{0x02}))
obj3.SetBalance(big.NewInt(44))
// write some of them to the trie
s.state.UpdateStateObject(obj1)
s.state.UpdateStateObject(obj2)
// check that dump contains the state objects that are in trie
got := string(s.state.Dump())
want := `{
"root": "6e277ae8357d013e50f74eedb66a991f6922f93ae03714de58b3d0c5e9eee53f",
"accounts": {
"1468288056310c82aa4c01a7e12a10f8111a0560e72b700555479031b86c357d": {
"balance": "22",
"nonce": 0,
"root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"codeHash": "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
"storage": {}
},
"a17eacbc25cda025e81db9c5c62868822c73ce097cee2a63e33a2e41268358a1": {
"balance": "0",
"nonce": 0,
"root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"codeHash": "87874902497a5bb968da31a2998d8f22e949d1ef6214bcdedd8bae24cca4b9e3",
"storage": {}
}
}
}`
if got != want {
c.Errorf("dump mismatch:\ngot: %s\nwant: %s\n", got, want)
}
}
func (s *StateSuite) SetUpTest(c *checker.C) {
db, _ := ethdb.NewMemDatabase()
s.state = New(common.Hash{}, db)
}
func TestNull(t *testing.T) {
db, _ := ethdb.NewMemDatabase()
state := New(common.Hash{}, db)
address := common.HexToAddress("0x823140710bf13990e4500136726d8b55")
state.CreateAccount(address)
//value := common.FromHex("0x823140710bf13990e4500136726d8b55")
var value common.Hash
state.SetState(address, common.Hash{}, value)
state.SyncIntermediate()
state.Sync()
value = state.GetState(address, common.Hash{})
if !common.EmptyHash(value) {
t.Errorf("expected empty hash. got %x", value)
}
}
func (s *StateSuite) TestSnapshot(c *checker.C) {
stateobjaddr := toAddr([]byte("aa"))
var storageaddr common.Hash
data1 := common.BytesToHash([]byte{42})
data2 := common.BytesToHash([]byte{43})
// set inital state object value
s.state.SetState(stateobjaddr, storageaddr, data1)
// get snapshot of current state
snapshot := s.state.Copy()
// set new state object value
s.state.SetState(stateobjaddr, storageaddr, data2)
// restore snapshot
s.state.Set(snapshot)
// get state storage value
res := s.state.GetState(stateobjaddr, storageaddr)
c.Assert(data1, checker.DeepEquals, res)
}
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