024d41d0c2
Removed exported statedb object accessors, reducing the chance for nasty bugs to creep in. It's also ugly and unnecessary to have these methods.
238 lines
7.5 KiB
Go
238 lines
7.5 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package state
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import (
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"bytes"
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"math/big"
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"testing"
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checker "gopkg.in/check.v1"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethdb"
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)
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type StateSuite struct {
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state *StateDB
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}
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var _ = checker.Suite(&StateSuite{})
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var toAddr = common.BytesToAddress
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func (s *StateSuite) TestDump(c *checker.C) {
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// generate a few entries
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obj1 := s.state.GetOrNewStateObject(toAddr([]byte{0x01}))
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obj1.AddBalance(big.NewInt(22))
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obj2 := s.state.GetOrNewStateObject(toAddr([]byte{0x01, 0x02}))
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obj2.SetCode(crypto.Keccak256Hash([]byte{3, 3, 3, 3, 3, 3, 3}), []byte{3, 3, 3, 3, 3, 3, 3})
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obj3 := s.state.GetOrNewStateObject(toAddr([]byte{0x02}))
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obj3.SetBalance(big.NewInt(44))
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// write some of them to the trie
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s.state.updateStateObject(obj1)
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s.state.updateStateObject(obj2)
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s.state.Commit(false)
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// check that dump contains the state objects that are in trie
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got := string(s.state.Dump())
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want := `{
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"root": "71edff0130dd2385947095001c73d9e28d862fc286fca2b922ca6f6f3cddfdd2",
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"accounts": {
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"0000000000000000000000000000000000000001": {
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"balance": "22",
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"nonce": 0,
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"root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
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"codeHash": "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
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"code": "",
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"storage": {}
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},
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"0000000000000000000000000000000000000002": {
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"balance": "44",
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"nonce": 0,
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"root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
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"codeHash": "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
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"code": "",
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"storage": {}
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},
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"0000000000000000000000000000000000000102": {
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"balance": "0",
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"nonce": 0,
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"root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
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"codeHash": "87874902497a5bb968da31a2998d8f22e949d1ef6214bcdedd8bae24cca4b9e3",
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"code": "03030303030303",
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"storage": {}
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}
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}
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}`
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if got != want {
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c.Errorf("dump mismatch:\ngot: %s\nwant: %s\n", got, want)
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}
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}
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func (s *StateSuite) SetUpTest(c *checker.C) {
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db, _ := ethdb.NewMemDatabase()
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s.state, _ = New(common.Hash{}, db)
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}
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func TestNull(t *testing.T) {
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db, _ := ethdb.NewMemDatabase()
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state, _ := New(common.Hash{}, db)
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address := common.HexToAddress("0x823140710bf13990e4500136726d8b55")
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state.CreateAccount(address)
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//value := common.FromHex("0x823140710bf13990e4500136726d8b55")
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var value common.Hash
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state.SetState(address, common.Hash{}, value)
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state.Commit(false)
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value = state.GetState(address, common.Hash{})
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if !common.EmptyHash(value) {
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t.Errorf("expected empty hash. got %x", value)
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}
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}
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func (s *StateSuite) TestSnapshot(c *checker.C) {
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stateobjaddr := toAddr([]byte("aa"))
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var storageaddr common.Hash
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data1 := common.BytesToHash([]byte{42})
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data2 := common.BytesToHash([]byte{43})
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// set initial state object value
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s.state.SetState(stateobjaddr, storageaddr, data1)
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// get snapshot of current state
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snapshot := s.state.Snapshot()
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// set new state object value
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s.state.SetState(stateobjaddr, storageaddr, data2)
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// restore snapshot
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s.state.RevertToSnapshot(snapshot)
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// get state storage value
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res := s.state.GetState(stateobjaddr, storageaddr)
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c.Assert(data1, checker.DeepEquals, res)
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}
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func TestSnapshotEmpty(t *testing.T) {
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db, _ := ethdb.NewMemDatabase()
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state, _ := New(common.Hash{}, db)
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state.RevertToSnapshot(state.Snapshot())
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}
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// use testing instead of checker because checker does not support
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// printing/logging in tests (-check.vv does not work)
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func TestSnapshot2(t *testing.T) {
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db, _ := ethdb.NewMemDatabase()
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state, _ := New(common.Hash{}, db)
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stateobjaddr0 := toAddr([]byte("so0"))
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stateobjaddr1 := toAddr([]byte("so1"))
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var storageaddr common.Hash
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data0 := common.BytesToHash([]byte{17})
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data1 := common.BytesToHash([]byte{18})
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state.SetState(stateobjaddr0, storageaddr, data0)
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state.SetState(stateobjaddr1, storageaddr, data1)
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// db, trie are already non-empty values
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so0 := state.getStateObject(stateobjaddr0)
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so0.SetBalance(big.NewInt(42))
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so0.SetNonce(43)
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so0.SetCode(crypto.Keccak256Hash([]byte{'c', 'a', 'f', 'e'}), []byte{'c', 'a', 'f', 'e'})
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so0.suicided = false
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so0.deleted = false
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state.setStateObject(so0)
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root, _ := state.Commit(false)
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state.Reset(root)
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// and one with deleted == true
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so1 := state.getStateObject(stateobjaddr1)
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so1.SetBalance(big.NewInt(52))
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so1.SetNonce(53)
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so1.SetCode(crypto.Keccak256Hash([]byte{'c', 'a', 'f', 'e', '2'}), []byte{'c', 'a', 'f', 'e', '2'})
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so1.suicided = true
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so1.deleted = true
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state.setStateObject(so1)
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so1 = state.getStateObject(stateobjaddr1)
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if so1 != nil {
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t.Fatalf("deleted object not nil when getting")
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}
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snapshot := state.Snapshot()
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state.RevertToSnapshot(snapshot)
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so0Restored := state.getStateObject(stateobjaddr0)
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// Update lazily-loaded values before comparing.
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so0Restored.GetState(db, storageaddr)
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so0Restored.Code(db)
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// non-deleted is equal (restored)
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compareStateObjects(so0Restored, so0, t)
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// deleted should be nil, both before and after restore of state copy
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so1Restored := state.getStateObject(stateobjaddr1)
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if so1Restored != nil {
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t.Fatalf("deleted object not nil after restoring snapshot: %+v", so1Restored)
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}
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}
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func compareStateObjects(so0, so1 *stateObject, t *testing.T) {
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if so0.Address() != so1.Address() {
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t.Fatalf("Address mismatch: have %v, want %v", so0.address, so1.address)
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}
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if so0.Balance().Cmp(so1.Balance()) != 0 {
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t.Fatalf("Balance mismatch: have %v, want %v", so0.Balance(), so1.Balance())
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}
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if so0.Nonce() != so1.Nonce() {
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t.Fatalf("Nonce mismatch: have %v, want %v", so0.Nonce(), so1.Nonce())
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}
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if so0.data.Root != so1.data.Root {
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t.Errorf("Root mismatch: have %x, want %x", so0.data.Root[:], so1.data.Root[:])
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}
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if !bytes.Equal(so0.CodeHash(), so1.CodeHash()) {
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t.Fatalf("CodeHash mismatch: have %v, want %v", so0.CodeHash(), so1.CodeHash())
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}
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if !bytes.Equal(so0.code, so1.code) {
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t.Fatalf("Code mismatch: have %v, want %v", so0.code, so1.code)
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}
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if len(so1.cachedStorage) != len(so0.cachedStorage) {
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t.Errorf("Storage size mismatch: have %d, want %d", len(so1.cachedStorage), len(so0.cachedStorage))
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}
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for k, v := range so1.cachedStorage {
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if so0.cachedStorage[k] != v {
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t.Errorf("Storage key %x mismatch: have %v, want %v", k, so0.cachedStorage[k], v)
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}
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}
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for k, v := range so0.cachedStorage {
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if so1.cachedStorage[k] != v {
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t.Errorf("Storage key %x mismatch: have %v, want none.", k, v)
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}
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}
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if so0.suicided != so1.suicided {
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t.Fatalf("suicided mismatch: have %v, want %v", so0.suicided, so1.suicided)
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}
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if so0.deleted != so1.deleted {
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t.Fatalf("Deleted mismatch: have %v, want %v", so0.deleted, so1.deleted)
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}
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}
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