354 lines
12 KiB
Go
354 lines
12 KiB
Go
// Copyright 2015 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"
|
|
"math/big"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/ethdb"
|
|
"github.com/ethereum/go-ethereum/ethdb/memorydb"
|
|
"github.com/ethereum/go-ethereum/trie"
|
|
)
|
|
|
|
// testAccount is the data associated with an account used by the state tests.
|
|
type testAccount struct {
|
|
address common.Address
|
|
balance *big.Int
|
|
nonce uint64
|
|
code []byte
|
|
}
|
|
|
|
// makeTestState create a sample test state to test node-wise reconstruction.
|
|
func makeTestState() (Database, common.Hash, []*testAccount) {
|
|
// Create an empty state
|
|
db := NewDatabase(rawdb.NewMemoryDatabase())
|
|
state, _ := New(common.Hash{}, db)
|
|
|
|
// Fill it with some arbitrary data
|
|
accounts := []*testAccount{}
|
|
for i := byte(0); i < 96; i++ {
|
|
obj := state.GetOrNewStateObject(common.BytesToAddress([]byte{i}))
|
|
acc := &testAccount{address: common.BytesToAddress([]byte{i})}
|
|
|
|
obj.AddBalance(big.NewInt(int64(11 * i)))
|
|
acc.balance = big.NewInt(int64(11 * i))
|
|
|
|
obj.SetNonce(uint64(42 * i))
|
|
acc.nonce = uint64(42 * i)
|
|
|
|
if i%3 == 0 {
|
|
obj.SetCode(crypto.Keccak256Hash([]byte{i, i, i, i, i}), []byte{i, i, i, i, i})
|
|
acc.code = []byte{i, i, i, i, i}
|
|
}
|
|
state.updateStateObject(obj)
|
|
accounts = append(accounts, acc)
|
|
}
|
|
root, _ := state.Commit(false)
|
|
|
|
// Return the generated state
|
|
return db, root, accounts
|
|
}
|
|
|
|
// checkStateAccounts cross references a reconstructed state with an expected
|
|
// account array.
|
|
func checkStateAccounts(t *testing.T, db ethdb.Database, root common.Hash, accounts []*testAccount) {
|
|
// Check root availability and state contents
|
|
state, err := New(root, NewDatabase(db))
|
|
if err != nil {
|
|
t.Fatalf("failed to create state trie at %x: %v", root, err)
|
|
}
|
|
if err := checkStateConsistency(db, root); err != nil {
|
|
t.Fatalf("inconsistent state trie at %x: %v", root, err)
|
|
}
|
|
for i, acc := range accounts {
|
|
if balance := state.GetBalance(acc.address); balance.Cmp(acc.balance) != 0 {
|
|
t.Errorf("account %d: balance mismatch: have %v, want %v", i, balance, acc.balance)
|
|
}
|
|
if nonce := state.GetNonce(acc.address); nonce != acc.nonce {
|
|
t.Errorf("account %d: nonce mismatch: have %v, want %v", i, nonce, acc.nonce)
|
|
}
|
|
if code := state.GetCode(acc.address); !bytes.Equal(code, acc.code) {
|
|
t.Errorf("account %d: code mismatch: have %x, want %x", i, code, acc.code)
|
|
}
|
|
}
|
|
}
|
|
|
|
// checkTrieConsistency checks that all nodes in a (sub-)trie are indeed present.
|
|
func checkTrieConsistency(db ethdb.Database, root common.Hash) error {
|
|
if v, _ := db.Get(root[:]); v == nil {
|
|
return nil // Consider a non existent state consistent.
|
|
}
|
|
trie, err := trie.New(root, trie.NewDatabase(db))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
it := trie.NodeIterator(nil)
|
|
for it.Next(true) {
|
|
}
|
|
return it.Error()
|
|
}
|
|
|
|
// checkStateConsistency checks that all data of a state root is present.
|
|
func checkStateConsistency(db ethdb.Database, root common.Hash) error {
|
|
// Create and iterate a state trie rooted in a sub-node
|
|
if _, err := db.Get(root.Bytes()); err != nil {
|
|
return nil // Consider a non existent state consistent.
|
|
}
|
|
state, err := New(root, NewDatabase(db))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
it := NewNodeIterator(state)
|
|
for it.Next() {
|
|
}
|
|
return it.Error
|
|
}
|
|
|
|
// Tests that an empty state is not scheduled for syncing.
|
|
func TestEmptyStateSync(t *testing.T) {
|
|
empty := common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
|
|
if req := NewStateSync(empty, rawdb.NewMemoryDatabase(), trie.NewSyncBloom(1, memorydb.New())).Missing(1); len(req) != 0 {
|
|
t.Errorf("content requested for empty state: %v", req)
|
|
}
|
|
}
|
|
|
|
// Tests that given a root hash, a state can sync iteratively on a single thread,
|
|
// requesting retrieval tasks and returning all of them in one go.
|
|
func TestIterativeStateSyncIndividual(t *testing.T) { testIterativeStateSync(t, 1) }
|
|
func TestIterativeStateSyncBatched(t *testing.T) { testIterativeStateSync(t, 100) }
|
|
|
|
func testIterativeStateSync(t *testing.T, batch int) {
|
|
// Create a random state to copy
|
|
srcDb, srcRoot, srcAccounts := makeTestState()
|
|
|
|
// Create a destination state and sync with the scheduler
|
|
dstDb := rawdb.NewMemoryDatabase()
|
|
sched := NewStateSync(srcRoot, dstDb, trie.NewSyncBloom(1, dstDb))
|
|
|
|
queue := append([]common.Hash{}, sched.Missing(batch)...)
|
|
for len(queue) > 0 {
|
|
results := make([]trie.SyncResult, len(queue))
|
|
for i, hash := range queue {
|
|
data, err := srcDb.TrieDB().Node(hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x", hash)
|
|
}
|
|
results[i] = trie.SyncResult{Hash: hash, Data: data}
|
|
}
|
|
if _, index, err := sched.Process(results); err != nil {
|
|
t.Fatalf("failed to process result #%d: %v", index, err)
|
|
}
|
|
if index, err := sched.Commit(dstDb); err != nil {
|
|
t.Fatalf("failed to commit data #%d: %v", index, err)
|
|
}
|
|
queue = append(queue[:0], sched.Missing(batch)...)
|
|
}
|
|
// Cross check that the two states are in sync
|
|
checkStateAccounts(t, dstDb, srcRoot, srcAccounts)
|
|
}
|
|
|
|
// Tests that the trie scheduler can correctly reconstruct the state even if only
|
|
// partial results are returned, and the others sent only later.
|
|
func TestIterativeDelayedStateSync(t *testing.T) {
|
|
// Create a random state to copy
|
|
srcDb, srcRoot, srcAccounts := makeTestState()
|
|
|
|
// Create a destination state and sync with the scheduler
|
|
dstDb := rawdb.NewMemoryDatabase()
|
|
sched := NewStateSync(srcRoot, dstDb, trie.NewSyncBloom(1, dstDb))
|
|
|
|
queue := append([]common.Hash{}, sched.Missing(0)...)
|
|
for len(queue) > 0 {
|
|
// Sync only half of the scheduled nodes
|
|
results := make([]trie.SyncResult, len(queue)/2+1)
|
|
for i, hash := range queue[:len(results)] {
|
|
data, err := srcDb.TrieDB().Node(hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x", hash)
|
|
}
|
|
results[i] = trie.SyncResult{Hash: hash, Data: data}
|
|
}
|
|
if _, index, err := sched.Process(results); err != nil {
|
|
t.Fatalf("failed to process result #%d: %v", index, err)
|
|
}
|
|
if index, err := sched.Commit(dstDb); err != nil {
|
|
t.Fatalf("failed to commit data #%d: %v", index, err)
|
|
}
|
|
queue = append(queue[len(results):], sched.Missing(0)...)
|
|
}
|
|
// Cross check that the two states are in sync
|
|
checkStateAccounts(t, dstDb, srcRoot, srcAccounts)
|
|
}
|
|
|
|
// Tests that given a root hash, a trie can sync iteratively on a single thread,
|
|
// requesting retrieval tasks and returning all of them in one go, however in a
|
|
// random order.
|
|
func TestIterativeRandomStateSyncIndividual(t *testing.T) { testIterativeRandomStateSync(t, 1) }
|
|
func TestIterativeRandomStateSyncBatched(t *testing.T) { testIterativeRandomStateSync(t, 100) }
|
|
|
|
func testIterativeRandomStateSync(t *testing.T, batch int) {
|
|
// Create a random state to copy
|
|
srcDb, srcRoot, srcAccounts := makeTestState()
|
|
|
|
// Create a destination state and sync with the scheduler
|
|
dstDb := rawdb.NewMemoryDatabase()
|
|
sched := NewStateSync(srcRoot, dstDb, trie.NewSyncBloom(1, dstDb))
|
|
|
|
queue := make(map[common.Hash]struct{})
|
|
for _, hash := range sched.Missing(batch) {
|
|
queue[hash] = struct{}{}
|
|
}
|
|
for len(queue) > 0 {
|
|
// Fetch all the queued nodes in a random order
|
|
results := make([]trie.SyncResult, 0, len(queue))
|
|
for hash := range queue {
|
|
data, err := srcDb.TrieDB().Node(hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x", hash)
|
|
}
|
|
results = append(results, trie.SyncResult{Hash: hash, Data: data})
|
|
}
|
|
// Feed the retrieved results back and queue new tasks
|
|
if _, index, err := sched.Process(results); err != nil {
|
|
t.Fatalf("failed to process result #%d: %v", index, err)
|
|
}
|
|
if index, err := sched.Commit(dstDb); err != nil {
|
|
t.Fatalf("failed to commit data #%d: %v", index, err)
|
|
}
|
|
queue = make(map[common.Hash]struct{})
|
|
for _, hash := range sched.Missing(batch) {
|
|
queue[hash] = struct{}{}
|
|
}
|
|
}
|
|
// Cross check that the two states are in sync
|
|
checkStateAccounts(t, dstDb, srcRoot, srcAccounts)
|
|
}
|
|
|
|
// Tests that the trie scheduler can correctly reconstruct the state even if only
|
|
// partial results are returned (Even those randomly), others sent only later.
|
|
func TestIterativeRandomDelayedStateSync(t *testing.T) {
|
|
// Create a random state to copy
|
|
srcDb, srcRoot, srcAccounts := makeTestState()
|
|
|
|
// Create a destination state and sync with the scheduler
|
|
dstDb := rawdb.NewMemoryDatabase()
|
|
sched := NewStateSync(srcRoot, dstDb, trie.NewSyncBloom(1, dstDb))
|
|
|
|
queue := make(map[common.Hash]struct{})
|
|
for _, hash := range sched.Missing(0) {
|
|
queue[hash] = struct{}{}
|
|
}
|
|
for len(queue) > 0 {
|
|
// Sync only half of the scheduled nodes, even those in random order
|
|
results := make([]trie.SyncResult, 0, len(queue)/2+1)
|
|
for hash := range queue {
|
|
delete(queue, hash)
|
|
|
|
data, err := srcDb.TrieDB().Node(hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x", hash)
|
|
}
|
|
results = append(results, trie.SyncResult{Hash: hash, Data: data})
|
|
|
|
if len(results) >= cap(results) {
|
|
break
|
|
}
|
|
}
|
|
// Feed the retrieved results back and queue new tasks
|
|
if _, index, err := sched.Process(results); err != nil {
|
|
t.Fatalf("failed to process result #%d: %v", index, err)
|
|
}
|
|
if index, err := sched.Commit(dstDb); err != nil {
|
|
t.Fatalf("failed to commit data #%d: %v", index, err)
|
|
}
|
|
for _, hash := range sched.Missing(0) {
|
|
queue[hash] = struct{}{}
|
|
}
|
|
}
|
|
// Cross check that the two states are in sync
|
|
checkStateAccounts(t, dstDb, srcRoot, srcAccounts)
|
|
}
|
|
|
|
// Tests that at any point in time during a sync, only complete sub-tries are in
|
|
// the database.
|
|
func TestIncompleteStateSync(t *testing.T) {
|
|
// Create a random state to copy
|
|
srcDb, srcRoot, srcAccounts := makeTestState()
|
|
|
|
checkTrieConsistency(srcDb.TrieDB().DiskDB().(ethdb.Database), srcRoot)
|
|
|
|
// Create a destination state and sync with the scheduler
|
|
dstDb := rawdb.NewMemoryDatabase()
|
|
sched := NewStateSync(srcRoot, dstDb, trie.NewSyncBloom(1, dstDb))
|
|
|
|
added := []common.Hash{}
|
|
queue := append([]common.Hash{}, sched.Missing(1)...)
|
|
for len(queue) > 0 {
|
|
// Fetch a batch of state nodes
|
|
results := make([]trie.SyncResult, len(queue))
|
|
for i, hash := range queue {
|
|
data, err := srcDb.TrieDB().Node(hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x", hash)
|
|
}
|
|
results[i] = trie.SyncResult{Hash: hash, Data: data}
|
|
}
|
|
// Process each of the state nodes
|
|
if _, index, err := sched.Process(results); err != nil {
|
|
t.Fatalf("failed to process result #%d: %v", index, err)
|
|
}
|
|
if index, err := sched.Commit(dstDb); err != nil {
|
|
t.Fatalf("failed to commit data #%d: %v", index, err)
|
|
}
|
|
for _, result := range results {
|
|
added = append(added, result.Hash)
|
|
}
|
|
// Check that all known sub-tries added so far are complete or missing entirely.
|
|
checkSubtries:
|
|
for _, hash := range added {
|
|
for _, acc := range srcAccounts {
|
|
if hash == crypto.Keccak256Hash(acc.code) {
|
|
continue checkSubtries // skip trie check of code nodes.
|
|
}
|
|
}
|
|
// Can't use checkStateConsistency here because subtrie keys may have odd
|
|
// length and crash in LeafKey.
|
|
if err := checkTrieConsistency(dstDb, hash); err != nil {
|
|
t.Fatalf("state inconsistent: %v", err)
|
|
}
|
|
}
|
|
// Fetch the next batch to retrieve
|
|
queue = append(queue[:0], sched.Missing(1)...)
|
|
}
|
|
// Sanity check that removing any node from the database is detected
|
|
for _, node := range added[1:] {
|
|
key := node.Bytes()
|
|
value, _ := dstDb.Get(key)
|
|
|
|
dstDb.Delete(key)
|
|
if err := checkStateConsistency(dstDb, added[0]); err == nil {
|
|
t.Fatalf("trie inconsistency not caught, missing: %x", key)
|
|
}
|
|
dstDb.Put(key, value)
|
|
}
|
|
}
|