plugeth/core/state/state_test.go
rjl493456442 6d2aeb43d5
cmd, core/state, eth, tests, trie: improve state reader (#27428)
The state availability is checked during the creation of a state reader.

-    In hash-based database, if the specified root node does not exist on disk disk, then
    the state reader won't be created and an error will be returned.

-    In path-based database, if the specified state layer is not available, then the
    state reader won't be created and an error will be returned.

This change also contains a stricter semantics regarding the `Commit` operation: once it has been performed, the trie is no longer usable, and certain operations will return an error.
2023-06-20 15:31:45 -04:00

296 lines
12 KiB
Go

// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library 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.
//
// The go-ethereum library 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 the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package state
import (
"bytes"
"encoding/json"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/trie"
)
type stateTest struct {
db ethdb.Database
state *StateDB
}
func newStateTest() *stateTest {
db := rawdb.NewMemoryDatabase()
sdb, _ := New(types.EmptyRootHash, NewDatabase(db), nil)
return &stateTest{db: db, state: sdb}
}
func TestDump(t *testing.T) {
db := rawdb.NewMemoryDatabase()
tdb := NewDatabaseWithConfig(db, &trie.Config{Preimages: true})
sdb, _ := New(types.EmptyRootHash, tdb, nil)
s := &stateTest{db: db, state: sdb}
// generate a few entries
obj1 := s.state.GetOrNewStateObject(common.BytesToAddress([]byte{0x01}))
obj1.AddBalance(big.NewInt(22))
obj2 := s.state.GetOrNewStateObject(common.BytesToAddress([]byte{0x01, 0x02}))
obj2.SetCode(crypto.Keccak256Hash([]byte{3, 3, 3, 3, 3, 3, 3}), []byte{3, 3, 3, 3, 3, 3, 3})
obj3 := s.state.GetOrNewStateObject(common.BytesToAddress([]byte{0x02}))
obj3.SetBalance(big.NewInt(44))
// write some of them to the trie
s.state.updateStateObject(obj1)
s.state.updateStateObject(obj2)
root, _ := s.state.Commit(false)
// check that DumpToCollector contains the state objects that are in trie
s.state, _ = New(root, tdb, nil)
got := string(s.state.Dump(nil))
want := `{
"root": "71edff0130dd2385947095001c73d9e28d862fc286fca2b922ca6f6f3cddfdd2",
"accounts": {
"0x0000000000000000000000000000000000000001": {
"balance": "22",
"nonce": 0,
"root": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"codeHash": "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
"key": "0x1468288056310c82aa4c01a7e12a10f8111a0560e72b700555479031b86c357d"
},
"0x0000000000000000000000000000000000000002": {
"balance": "44",
"nonce": 0,
"root": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"codeHash": "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
"key": "0xd52688a8f926c816ca1e079067caba944f158e764817b83fc43594370ca9cf62"
},
"0x0000000000000000000000000000000000000102": {
"balance": "0",
"nonce": 0,
"root": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"codeHash": "0x87874902497a5bb968da31a2998d8f22e949d1ef6214bcdedd8bae24cca4b9e3",
"code": "0x03030303030303",
"key": "0xa17eacbc25cda025e81db9c5c62868822c73ce097cee2a63e33a2e41268358a1"
}
}
}`
if got != want {
t.Errorf("DumpToCollector mismatch:\ngot: %s\nwant: %s\n", got, want)
}
}
func TestIterativeDump(t *testing.T) {
db := rawdb.NewMemoryDatabase()
tdb := NewDatabaseWithConfig(db, &trie.Config{Preimages: true})
sdb, _ := New(types.EmptyRootHash, tdb, nil)
s := &stateTest{db: db, state: sdb}
// generate a few entries
obj1 := s.state.GetOrNewStateObject(common.BytesToAddress([]byte{0x01}))
obj1.AddBalance(big.NewInt(22))
obj2 := s.state.GetOrNewStateObject(common.BytesToAddress([]byte{0x01, 0x02}))
obj2.SetCode(crypto.Keccak256Hash([]byte{3, 3, 3, 3, 3, 3, 3}), []byte{3, 3, 3, 3, 3, 3, 3})
obj3 := s.state.GetOrNewStateObject(common.BytesToAddress([]byte{0x02}))
obj3.SetBalance(big.NewInt(44))
obj4 := s.state.GetOrNewStateObject(common.BytesToAddress([]byte{0x00}))
obj4.AddBalance(big.NewInt(1337))
// write some of them to the trie
s.state.updateStateObject(obj1)
s.state.updateStateObject(obj2)
root, _ := s.state.Commit(false)
s.state, _ = New(root, tdb, nil)
b := &bytes.Buffer{}
s.state.IterativeDump(nil, json.NewEncoder(b))
// check that DumpToCollector contains the state objects that are in trie
got := b.String()
want := `{"root":"0xd5710ea8166b7b04bc2bfb129d7db12931cee82f75ca8e2d075b4884322bf3de"}
{"balance":"22","nonce":0,"root":"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421","codeHash":"0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470","address":"0x0000000000000000000000000000000000000001","key":"0x1468288056310c82aa4c01a7e12a10f8111a0560e72b700555479031b86c357d"}
{"balance":"1337","nonce":0,"root":"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421","codeHash":"0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470","address":"0x0000000000000000000000000000000000000000","key":"0x5380c7b7ae81a58eb98d9c78de4a1fd7fd9535fc953ed2be602daaa41767312a"}
{"balance":"0","nonce":0,"root":"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421","codeHash":"0x87874902497a5bb968da31a2998d8f22e949d1ef6214bcdedd8bae24cca4b9e3","code":"0x03030303030303","address":"0x0000000000000000000000000000000000000102","key":"0xa17eacbc25cda025e81db9c5c62868822c73ce097cee2a63e33a2e41268358a1"}
{"balance":"44","nonce":0,"root":"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421","codeHash":"0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470","address":"0x0000000000000000000000000000000000000002","key":"0xd52688a8f926c816ca1e079067caba944f158e764817b83fc43594370ca9cf62"}
`
if got != want {
t.Errorf("DumpToCollector mismatch:\ngot: %s\nwant: %s\n", got, want)
}
}
func TestNull(t *testing.T) {
s := newStateTest()
address := common.HexToAddress("0x823140710bf13990e4500136726d8b55")
s.state.CreateAccount(address)
//value := common.FromHex("0x823140710bf13990e4500136726d8b55")
var value common.Hash
s.state.SetState(address, common.Hash{}, value)
s.state.Commit(false)
if value := s.state.GetState(address, common.Hash{}); value != (common.Hash{}) {
t.Errorf("expected empty current value, got %x", value)
}
if value := s.state.GetCommittedState(address, common.Hash{}); value != (common.Hash{}) {
t.Errorf("expected empty committed value, got %x", value)
}
}
func TestSnapshot(t *testing.T) {
stateobjaddr := common.BytesToAddress([]byte("aa"))
var storageaddr common.Hash
data1 := common.BytesToHash([]byte{42})
data2 := common.BytesToHash([]byte{43})
s := newStateTest()
// snapshot the genesis state
genesis := s.state.Snapshot()
// set initial state object value
s.state.SetState(stateobjaddr, storageaddr, data1)
snapshot := s.state.Snapshot()
// set a new state object value, revert it and ensure correct content
s.state.SetState(stateobjaddr, storageaddr, data2)
s.state.RevertToSnapshot(snapshot)
if v := s.state.GetState(stateobjaddr, storageaddr); v != data1 {
t.Errorf("wrong storage value %v, want %v", v, data1)
}
if v := s.state.GetCommittedState(stateobjaddr, storageaddr); v != (common.Hash{}) {
t.Errorf("wrong committed storage value %v, want %v", v, common.Hash{})
}
// revert up to the genesis state and ensure correct content
s.state.RevertToSnapshot(genesis)
if v := s.state.GetState(stateobjaddr, storageaddr); v != (common.Hash{}) {
t.Errorf("wrong storage value %v, want %v", v, common.Hash{})
}
if v := s.state.GetCommittedState(stateobjaddr, storageaddr); v != (common.Hash{}) {
t.Errorf("wrong committed storage value %v, want %v", v, common.Hash{})
}
}
func TestSnapshotEmpty(t *testing.T) {
s := newStateTest()
s.state.RevertToSnapshot(s.state.Snapshot())
}
func TestSnapshot2(t *testing.T) {
state, _ := New(types.EmptyRootHash, NewDatabase(rawdb.NewMemoryDatabase()), nil)
stateobjaddr0 := common.BytesToAddress([]byte("so0"))
stateobjaddr1 := common.BytesToAddress([]byte("so1"))
var storageaddr common.Hash
data0 := common.BytesToHash([]byte{17})
data1 := common.BytesToHash([]byte{18})
state.SetState(stateobjaddr0, storageaddr, data0)
state.SetState(stateobjaddr1, storageaddr, data1)
// db, trie are already non-empty values
so0 := state.getStateObject(stateobjaddr0)
so0.SetBalance(big.NewInt(42))
so0.SetNonce(43)
so0.SetCode(crypto.Keccak256Hash([]byte{'c', 'a', 'f', 'e'}), []byte{'c', 'a', 'f', 'e'})
so0.suicided = false
so0.deleted = false
state.setStateObject(so0)
root, _ := state.Commit(false)
state, _ = New(root, state.db, state.snaps)
// and one with deleted == true
so1 := state.getStateObject(stateobjaddr1)
so1.SetBalance(big.NewInt(52))
so1.SetNonce(53)
so1.SetCode(crypto.Keccak256Hash([]byte{'c', 'a', 'f', 'e', '2'}), []byte{'c', 'a', 'f', 'e', '2'})
so1.suicided = true
so1.deleted = true
state.setStateObject(so1)
so1 = state.getStateObject(stateobjaddr1)
if so1 != nil {
t.Fatalf("deleted object not nil when getting")
}
snapshot := state.Snapshot()
state.RevertToSnapshot(snapshot)
so0Restored := state.getStateObject(stateobjaddr0)
// Update lazily-loaded values before comparing.
so0Restored.GetState(state.db, storageaddr)
so0Restored.Code(state.db)
// non-deleted is equal (restored)
compareStateObjects(so0Restored, so0, t)
// deleted should be nil, both before and after restore of state copy
so1Restored := state.getStateObject(stateobjaddr1)
if so1Restored != nil {
t.Fatalf("deleted object not nil after restoring snapshot: %+v", so1Restored)
}
}
func compareStateObjects(so0, so1 *stateObject, t *testing.T) {
if so0.Address() != so1.Address() {
t.Fatalf("Address mismatch: have %v, want %v", so0.address, so1.address)
}
if so0.Balance().Cmp(so1.Balance()) != 0 {
t.Fatalf("Balance mismatch: have %v, want %v", so0.Balance(), so1.Balance())
}
if so0.Nonce() != so1.Nonce() {
t.Fatalf("Nonce mismatch: have %v, want %v", so0.Nonce(), so1.Nonce())
}
if so0.data.Root != so1.data.Root {
t.Errorf("Root mismatch: have %x, want %x", so0.data.Root[:], so1.data.Root[:])
}
if !bytes.Equal(so0.CodeHash(), so1.CodeHash()) {
t.Fatalf("CodeHash mismatch: have %v, want %v", so0.CodeHash(), so1.CodeHash())
}
if !bytes.Equal(so0.code, so1.code) {
t.Fatalf("Code mismatch: have %v, want %v", so0.code, so1.code)
}
if len(so1.dirtyStorage) != len(so0.dirtyStorage) {
t.Errorf("Dirty storage size mismatch: have %d, want %d", len(so1.dirtyStorage), len(so0.dirtyStorage))
}
for k, v := range so1.dirtyStorage {
if so0.dirtyStorage[k] != v {
t.Errorf("Dirty storage key %x mismatch: have %v, want %v", k, so0.dirtyStorage[k], v)
}
}
for k, v := range so0.dirtyStorage {
if so1.dirtyStorage[k] != v {
t.Errorf("Dirty storage key %x mismatch: have %v, want none.", k, v)
}
}
if len(so1.originStorage) != len(so0.originStorage) {
t.Errorf("Origin storage size mismatch: have %d, want %d", len(so1.originStorage), len(so0.originStorage))
}
for k, v := range so1.originStorage {
if so0.originStorage[k] != v {
t.Errorf("Origin storage key %x mismatch: have %v, want %v", k, so0.originStorage[k], v)
}
}
for k, v := range so0.originStorage {
if so1.originStorage[k] != v {
t.Errorf("Origin storage key %x mismatch: have %v, want none.", k, v)
}
}
}