mirror of https://github.com/poanetwork/quorum.git
334 lines
11 KiB
Go
334 lines
11 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 trie
|
|
|
|
import (
|
|
"bytes"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/ethdb"
|
|
)
|
|
|
|
// makeTestTrie create a sample test trie to test node-wise reconstruction.
|
|
func makeTestTrie() (ethdb.Database, *Trie, map[string][]byte) {
|
|
// Create an empty trie
|
|
db, _ := ethdb.NewMemDatabase()
|
|
trie, _ := New(common.Hash{}, db)
|
|
|
|
// Fill it with some arbitrary data
|
|
content := make(map[string][]byte)
|
|
for i := byte(0); i < 255; i++ {
|
|
// Map the same data under multiple keys
|
|
key, val := common.LeftPadBytes([]byte{1, i}, 32), []byte{i}
|
|
content[string(key)] = val
|
|
trie.Update(key, val)
|
|
|
|
key, val = common.LeftPadBytes([]byte{2, i}, 32), []byte{i}
|
|
content[string(key)] = val
|
|
trie.Update(key, val)
|
|
|
|
// Add some other data to inflate the trie
|
|
for j := byte(3); j < 13; j++ {
|
|
key, val = common.LeftPadBytes([]byte{j, i}, 32), []byte{j, i}
|
|
content[string(key)] = val
|
|
trie.Update(key, val)
|
|
}
|
|
}
|
|
trie.Commit()
|
|
|
|
// Return the generated trie
|
|
return db, trie, content
|
|
}
|
|
|
|
// checkTrieContents cross references a reconstructed trie with an expected data
|
|
// content map.
|
|
func checkTrieContents(t *testing.T, db Database, root []byte, content map[string][]byte) {
|
|
// Check root availability and trie contents
|
|
trie, err := New(common.BytesToHash(root), db)
|
|
if err != nil {
|
|
t.Fatalf("failed to create trie at %x: %v", root, err)
|
|
}
|
|
if err := checkTrieConsistency(db, common.BytesToHash(root)); err != nil {
|
|
t.Fatalf("inconsistent trie at %x: %v", root, err)
|
|
}
|
|
for key, val := range content {
|
|
if have := trie.Get([]byte(key)); !bytes.Equal(have, val) {
|
|
t.Errorf("entry %x: content mismatch: have %x, want %x", key, have, val)
|
|
}
|
|
}
|
|
}
|
|
|
|
// checkTrieConsistency checks that all nodes in a trie are indeed present.
|
|
func checkTrieConsistency(db Database, root common.Hash) error {
|
|
// Create and iterate a trie rooted in a subnode
|
|
trie, err := New(root, db)
|
|
if err != nil {
|
|
return nil // Consider a non existent state consistent
|
|
}
|
|
it := trie.NodeIterator(nil)
|
|
for it.Next(true) {
|
|
}
|
|
return it.Error()
|
|
}
|
|
|
|
// Tests that an empty trie is not scheduled for syncing.
|
|
func TestEmptyTrieSync(t *testing.T) {
|
|
emptyA, _ := New(common.Hash{}, nil)
|
|
emptyB, _ := New(emptyRoot, nil)
|
|
|
|
for i, trie := range []*Trie{emptyA, emptyB} {
|
|
db, _ := ethdb.NewMemDatabase()
|
|
if req := NewTrieSync(common.BytesToHash(trie.Root()), db, nil).Missing(1); len(req) != 0 {
|
|
t.Errorf("test %d: content requested for empty trie: %v", i, req)
|
|
}
|
|
}
|
|
}
|
|
|
|
// 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.
|
|
func TestIterativeTrieSyncIndividual(t *testing.T) { testIterativeTrieSync(t, 1) }
|
|
func TestIterativeTrieSyncBatched(t *testing.T) { testIterativeTrieSync(t, 100) }
|
|
|
|
func testIterativeTrieSync(t *testing.T, batch int) {
|
|
// Create a random trie to copy
|
|
srcDb, srcTrie, srcData := makeTestTrie()
|
|
|
|
// Create a destination trie and sync with the scheduler
|
|
dstDb, _ := ethdb.NewMemDatabase()
|
|
sched := NewTrieSync(common.BytesToHash(srcTrie.Root()), dstDb, nil)
|
|
|
|
queue := append([]common.Hash{}, sched.Missing(batch)...)
|
|
for len(queue) > 0 {
|
|
results := make([]SyncResult, len(queue))
|
|
for i, hash := range queue {
|
|
data, err := srcDb.Get(hash.Bytes())
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
|
|
}
|
|
results[i] = SyncResult{hash, data}
|
|
}
|
|
if _, index, err := sched.Process(results, dstDb); err != nil {
|
|
t.Fatalf("failed to process result #%d: %v", index, err)
|
|
}
|
|
queue = append(queue[:0], sched.Missing(batch)...)
|
|
}
|
|
// Cross check that the two tries are in sync
|
|
checkTrieContents(t, dstDb, srcTrie.Root(), srcData)
|
|
}
|
|
|
|
// Tests that the trie scheduler can correctly reconstruct the state even if only
|
|
// partial results are returned, and the others sent only later.
|
|
func TestIterativeDelayedTrieSync(t *testing.T) {
|
|
// Create a random trie to copy
|
|
srcDb, srcTrie, srcData := makeTestTrie()
|
|
|
|
// Create a destination trie and sync with the scheduler
|
|
dstDb, _ := ethdb.NewMemDatabase()
|
|
sched := NewTrieSync(common.BytesToHash(srcTrie.Root()), dstDb, nil)
|
|
|
|
queue := append([]common.Hash{}, sched.Missing(10000)...)
|
|
for len(queue) > 0 {
|
|
// Sync only half of the scheduled nodes
|
|
results := make([]SyncResult, len(queue)/2+1)
|
|
for i, hash := range queue[:len(results)] {
|
|
data, err := srcDb.Get(hash.Bytes())
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
|
|
}
|
|
results[i] = SyncResult{hash, data}
|
|
}
|
|
if _, index, err := sched.Process(results, dstDb); err != nil {
|
|
t.Fatalf("failed to process result #%d: %v", index, err)
|
|
}
|
|
queue = append(queue[len(results):], sched.Missing(10000)...)
|
|
}
|
|
// Cross check that the two tries are in sync
|
|
checkTrieContents(t, dstDb, srcTrie.Root(), srcData)
|
|
}
|
|
|
|
// 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 TestIterativeRandomTrieSyncIndividual(t *testing.T) { testIterativeRandomTrieSync(t, 1) }
|
|
func TestIterativeRandomTrieSyncBatched(t *testing.T) { testIterativeRandomTrieSync(t, 100) }
|
|
|
|
func testIterativeRandomTrieSync(t *testing.T, batch int) {
|
|
// Create a random trie to copy
|
|
srcDb, srcTrie, srcData := makeTestTrie()
|
|
|
|
// Create a destination trie and sync with the scheduler
|
|
dstDb, _ := ethdb.NewMemDatabase()
|
|
sched := NewTrieSync(common.BytesToHash(srcTrie.Root()), dstDb, nil)
|
|
|
|
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([]SyncResult, 0, len(queue))
|
|
for hash := range queue {
|
|
data, err := srcDb.Get(hash.Bytes())
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
|
|
}
|
|
results = append(results, SyncResult{hash, data})
|
|
}
|
|
// Feed the retrieved results back and queue new tasks
|
|
if _, index, err := sched.Process(results, dstDb); err != nil {
|
|
t.Fatalf("failed to process result #%d: %v", index, err)
|
|
}
|
|
queue = make(map[common.Hash]struct{})
|
|
for _, hash := range sched.Missing(batch) {
|
|
queue[hash] = struct{}{}
|
|
}
|
|
}
|
|
// Cross check that the two tries are in sync
|
|
checkTrieContents(t, dstDb, srcTrie.Root(), srcData)
|
|
}
|
|
|
|
// 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 TestIterativeRandomDelayedTrieSync(t *testing.T) {
|
|
// Create a random trie to copy
|
|
srcDb, srcTrie, srcData := makeTestTrie()
|
|
|
|
// Create a destination trie and sync with the scheduler
|
|
dstDb, _ := ethdb.NewMemDatabase()
|
|
sched := NewTrieSync(common.BytesToHash(srcTrie.Root()), dstDb, nil)
|
|
|
|
queue := make(map[common.Hash]struct{})
|
|
for _, hash := range sched.Missing(10000) {
|
|
queue[hash] = struct{}{}
|
|
}
|
|
for len(queue) > 0 {
|
|
// Sync only half of the scheduled nodes, even those in random order
|
|
results := make([]SyncResult, 0, len(queue)/2+1)
|
|
for hash := range queue {
|
|
data, err := srcDb.Get(hash.Bytes())
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
|
|
}
|
|
results = append(results, SyncResult{hash, data})
|
|
|
|
if len(results) >= cap(results) {
|
|
break
|
|
}
|
|
}
|
|
// Feed the retrieved results back and queue new tasks
|
|
if _, index, err := sched.Process(results, dstDb); err != nil {
|
|
t.Fatalf("failed to process result #%d: %v", index, err)
|
|
}
|
|
for _, result := range results {
|
|
delete(queue, result.Hash)
|
|
}
|
|
for _, hash := range sched.Missing(10000) {
|
|
queue[hash] = struct{}{}
|
|
}
|
|
}
|
|
// Cross check that the two tries are in sync
|
|
checkTrieContents(t, dstDb, srcTrie.Root(), srcData)
|
|
}
|
|
|
|
// Tests that a trie sync will not request nodes multiple times, even if they
|
|
// have such references.
|
|
func TestDuplicateAvoidanceTrieSync(t *testing.T) {
|
|
// Create a random trie to copy
|
|
srcDb, srcTrie, srcData := makeTestTrie()
|
|
|
|
// Create a destination trie and sync with the scheduler
|
|
dstDb, _ := ethdb.NewMemDatabase()
|
|
sched := NewTrieSync(common.BytesToHash(srcTrie.Root()), dstDb, nil)
|
|
|
|
queue := append([]common.Hash{}, sched.Missing(0)...)
|
|
requested := make(map[common.Hash]struct{})
|
|
|
|
for len(queue) > 0 {
|
|
results := make([]SyncResult, len(queue))
|
|
for i, hash := range queue {
|
|
data, err := srcDb.Get(hash.Bytes())
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
|
|
}
|
|
if _, ok := requested[hash]; ok {
|
|
t.Errorf("hash %x already requested once", hash)
|
|
}
|
|
requested[hash] = struct{}{}
|
|
|
|
results[i] = SyncResult{hash, data}
|
|
}
|
|
if _, index, err := sched.Process(results, dstDb); err != nil {
|
|
t.Fatalf("failed to process result #%d: %v", index, err)
|
|
}
|
|
queue = append(queue[:0], sched.Missing(0)...)
|
|
}
|
|
// Cross check that the two tries are in sync
|
|
checkTrieContents(t, dstDb, srcTrie.Root(), srcData)
|
|
}
|
|
|
|
// Tests that at any point in time during a sync, only complete sub-tries are in
|
|
// the database.
|
|
func TestIncompleteTrieSync(t *testing.T) {
|
|
// Create a random trie to copy
|
|
srcDb, srcTrie, _ := makeTestTrie()
|
|
|
|
// Create a destination trie and sync with the scheduler
|
|
dstDb, _ := ethdb.NewMemDatabase()
|
|
sched := NewTrieSync(common.BytesToHash(srcTrie.Root()), dstDb, nil)
|
|
|
|
added := []common.Hash{}
|
|
queue := append([]common.Hash{}, sched.Missing(1)...)
|
|
for len(queue) > 0 {
|
|
// Fetch a batch of trie nodes
|
|
results := make([]SyncResult, len(queue))
|
|
for i, hash := range queue {
|
|
data, err := srcDb.Get(hash.Bytes())
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve node data for %x: %v", hash, err)
|
|
}
|
|
results[i] = SyncResult{hash, data}
|
|
}
|
|
// Process each of the trie nodes
|
|
if _, index, err := sched.Process(results, dstDb); err != nil {
|
|
t.Fatalf("failed to process result #%d: %v", index, err)
|
|
}
|
|
for _, result := range results {
|
|
added = append(added, result.Hash)
|
|
}
|
|
// Check that all known sub-tries in the synced trie are complete
|
|
for _, root := range added {
|
|
if err := checkTrieConsistency(dstDb, root); err != nil {
|
|
t.Fatalf("trie 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 := checkTrieConsistency(dstDb, added[0]); err == nil {
|
|
t.Fatalf("trie inconsistency not caught, missing: %x", key)
|
|
}
|
|
dstDb.Put(key, value)
|
|
}
|
|
}
|