212 lines
8.7 KiB
Go
212 lines
8.7 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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"encoding/json"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/triedb"
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"github.com/holiman/uint256"
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)
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type stateEnv struct {
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state *StateDB
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}
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func newStateEnv() *stateEnv {
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sdb, _ := New(types.EmptyRootHash, NewDatabaseForTesting())
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return &stateEnv{state: sdb}
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}
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func TestDump(t *testing.T) {
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db := rawdb.NewMemoryDatabase()
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triedb := triedb.NewDatabase(db, &triedb.Config{Preimages: true})
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tdb := NewDatabase(triedb, nil)
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sdb, _ := New(types.EmptyRootHash, tdb)
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s := &stateEnv{state: sdb}
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// generate a few entries
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obj1 := s.state.getOrNewStateObject(common.BytesToAddress([]byte{0x01}))
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obj1.AddBalance(uint256.NewInt(22))
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obj2 := s.state.getOrNewStateObject(common.BytesToAddress([]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(common.BytesToAddress([]byte{0x02}))
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obj3.SetBalance(uint256.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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root, _ := s.state.Commit(0, false)
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// check that DumpToCollector contains the state objects that are in trie
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s.state, _ = New(root, tdb)
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got := string(s.state.Dump(nil))
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want := `{
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"root": "71edff0130dd2385947095001c73d9e28d862fc286fca2b922ca6f6f3cddfdd2",
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"accounts": {
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"0x0000000000000000000000000000000000000001": {
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"balance": "22",
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"nonce": 0,
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"root": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
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"codeHash": "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
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"address": "0x0000000000000000000000000000000000000001",
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"key": "0x1468288056310c82aa4c01a7e12a10f8111a0560e72b700555479031b86c357d"
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},
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"0x0000000000000000000000000000000000000002": {
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"balance": "44",
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"nonce": 0,
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"root": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
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"codeHash": "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
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"address": "0x0000000000000000000000000000000000000002",
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"key": "0xd52688a8f926c816ca1e079067caba944f158e764817b83fc43594370ca9cf62"
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},
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"0x0000000000000000000000000000000000000102": {
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"balance": "0",
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"nonce": 0,
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"root": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
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"codeHash": "0x87874902497a5bb968da31a2998d8f22e949d1ef6214bcdedd8bae24cca4b9e3",
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"code": "0x03030303030303",
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"address": "0x0000000000000000000000000000000000000102",
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"key": "0xa17eacbc25cda025e81db9c5c62868822c73ce097cee2a63e33a2e41268358a1"
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}
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}
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}`
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if got != want {
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t.Errorf("DumpToCollector mismatch:\ngot: %s\nwant: %s\n", got, want)
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}
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}
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func TestIterativeDump(t *testing.T) {
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db := rawdb.NewMemoryDatabase()
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triedb := triedb.NewDatabase(db, &triedb.Config{Preimages: true})
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tdb := NewDatabase(triedb, nil)
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sdb, _ := New(types.EmptyRootHash, tdb)
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s := &stateEnv{state: sdb}
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// generate a few entries
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obj1 := s.state.getOrNewStateObject(common.BytesToAddress([]byte{0x01}))
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obj1.AddBalance(uint256.NewInt(22))
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obj2 := s.state.getOrNewStateObject(common.BytesToAddress([]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(common.BytesToAddress([]byte{0x02}))
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obj3.SetBalance(uint256.NewInt(44))
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obj4 := s.state.getOrNewStateObject(common.BytesToAddress([]byte{0x00}))
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obj4.AddBalance(uint256.NewInt(1337))
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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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root, _ := s.state.Commit(0, false)
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s.state, _ = New(root, tdb)
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b := &bytes.Buffer{}
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s.state.IterativeDump(nil, json.NewEncoder(b))
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// check that DumpToCollector contains the state objects that are in trie
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got := b.String()
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want := `{"root":"0xd5710ea8166b7b04bc2bfb129d7db12931cee82f75ca8e2d075b4884322bf3de"}
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{"balance":"22","nonce":0,"root":"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421","codeHash":"0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470","address":"0x0000000000000000000000000000000000000001","key":"0x1468288056310c82aa4c01a7e12a10f8111a0560e72b700555479031b86c357d"}
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{"balance":"1337","nonce":0,"root":"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421","codeHash":"0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470","address":"0x0000000000000000000000000000000000000000","key":"0x5380c7b7ae81a58eb98d9c78de4a1fd7fd9535fc953ed2be602daaa41767312a"}
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{"balance":"0","nonce":0,"root":"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421","codeHash":"0x87874902497a5bb968da31a2998d8f22e949d1ef6214bcdedd8bae24cca4b9e3","code":"0x03030303030303","address":"0x0000000000000000000000000000000000000102","key":"0xa17eacbc25cda025e81db9c5c62868822c73ce097cee2a63e33a2e41268358a1"}
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{"balance":"44","nonce":0,"root":"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421","codeHash":"0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470","address":"0x0000000000000000000000000000000000000002","key":"0xd52688a8f926c816ca1e079067caba944f158e764817b83fc43594370ca9cf62"}
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`
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if got != want {
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t.Errorf("DumpToCollector mismatch:\ngot: %s\nwant: %s\n", got, want)
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}
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}
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func TestNull(t *testing.T) {
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s := newStateEnv()
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address := common.HexToAddress("0x823140710bf13990e4500136726d8b55")
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s.state.CreateAccount(address)
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//value := common.FromHex("0x823140710bf13990e4500136726d8b55")
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var value common.Hash
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s.state.SetState(address, common.Hash{}, value)
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s.state.Commit(0, false)
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if value := s.state.GetState(address, common.Hash{}); value != (common.Hash{}) {
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t.Errorf("expected empty current value, got %x", value)
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}
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if value := s.state.GetCommittedState(address, common.Hash{}); value != (common.Hash{}) {
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t.Errorf("expected empty committed value, got %x", value)
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}
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}
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func TestSnapshot(t *testing.T) {
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stateobjaddr := common.BytesToAddress([]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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s := newStateEnv()
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// snapshot the genesis state
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genesis := s.state.Snapshot()
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// set initial state object value
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s.state.SetState(stateobjaddr, storageaddr, data1)
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snapshot := s.state.Snapshot()
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// set a new state object value, revert it and ensure correct content
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s.state.SetState(stateobjaddr, storageaddr, data2)
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s.state.RevertToSnapshot(snapshot)
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if v := s.state.GetState(stateobjaddr, storageaddr); v != data1 {
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t.Errorf("wrong storage value %v, want %v", v, data1)
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}
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if v := s.state.GetCommittedState(stateobjaddr, storageaddr); v != (common.Hash{}) {
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t.Errorf("wrong committed storage value %v, want %v", v, common.Hash{})
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}
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// revert up to the genesis state and ensure correct content
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s.state.RevertToSnapshot(genesis)
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if v := s.state.GetState(stateobjaddr, storageaddr); v != (common.Hash{}) {
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t.Errorf("wrong storage value %v, want %v", v, common.Hash{})
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}
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if v := s.state.GetCommittedState(stateobjaddr, storageaddr); v != (common.Hash{}) {
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t.Errorf("wrong committed storage value %v, want %v", v, common.Hash{})
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}
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}
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func TestSnapshotEmpty(t *testing.T) {
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s := newStateEnv()
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s.state.RevertToSnapshot(s.state.Snapshot())
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}
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func TestCreateObjectRevert(t *testing.T) {
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state, _ := New(types.EmptyRootHash, NewDatabaseForTesting())
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addr := common.BytesToAddress([]byte("so0"))
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snap := state.Snapshot()
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state.CreateAccount(addr)
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so0 := state.getStateObject(addr)
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so0.SetBalance(uint256.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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state.setStateObject(so0)
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state.RevertToSnapshot(snap)
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if state.Exist(addr) {
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t.Error("Unexpected account after revert")
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}
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}
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