plugeth/eth/api_test.go
jwasinger 6bd896a97f eth: add debug_accountRange (#17438)
This adds the debug_accountRange method which returns all accounts in
the state for a given block and transaction index.
2019-07-13 15:48:55 +02:00

248 lines
7.9 KiB
Go

// Copyright 2017 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 eth
import (
"bytes"
"fmt"
"math/big"
"reflect"
"sort"
"testing"
"github.com/davecgh/go-spew/spew"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/crypto"
)
var dumper = spew.ConfigState{Indent: " "}
func accountRangeTest(t *testing.T, trie *state.Trie, statedb *state.StateDB, start *common.Hash, requestedNum int, expectedNum int) AccountRangeResult {
result, err := accountRange(*trie, start, requestedNum)
if err != nil {
t.Fatal(err)
}
if len(result.Accounts) != expectedNum {
t.Fatalf("expected %d results. Got %d", expectedNum, len(result.Accounts))
}
for _, address := range result.Accounts {
if address == nil {
t.Fatalf("null address returned")
}
if !statedb.Exist(*address) {
t.Fatalf("account not found in state %s", address.Hex())
}
}
return result
}
type resultHash []*common.Hash
func (h resultHash) Len() int { return len(h) }
func (h resultHash) Swap(i, j int) { h[i], h[j] = h[j], h[i] }
func (h resultHash) Less(i, j int) bool { return bytes.Compare(h[i].Bytes(), h[j].Bytes()) < 0 }
func TestAccountRange(t *testing.T) {
var (
statedb = state.NewDatabase(rawdb.NewMemoryDatabase())
state, _ = state.New(common.Hash{}, statedb)
addrs = [AccountRangeMaxResults * 2]common.Address{}
m = map[common.Address]bool{}
)
for i := range addrs {
hash := common.HexToHash(fmt.Sprintf("%x", i))
addr := common.BytesToAddress(crypto.Keccak256Hash(hash.Bytes()).Bytes())
addrs[i] = addr
state.SetBalance(addrs[i], big.NewInt(1))
if _, ok := m[addr]; ok {
t.Fatalf("bad")
} else {
m[addr] = true
}
}
state.Commit(true)
root := state.IntermediateRoot(true)
trie, err := statedb.OpenTrie(root)
if err != nil {
t.Fatal(err)
}
t.Logf("test getting number of results less than max")
accountRangeTest(t, &trie, state, &common.Hash{0x0}, AccountRangeMaxResults/2, AccountRangeMaxResults/2)
t.Logf("test getting number of results greater than max %d", AccountRangeMaxResults)
accountRangeTest(t, &trie, state, &common.Hash{0x0}, AccountRangeMaxResults*2, AccountRangeMaxResults)
t.Logf("test with empty 'start' hash")
accountRangeTest(t, &trie, state, nil, AccountRangeMaxResults, AccountRangeMaxResults)
t.Logf("test pagination")
// test pagination
firstResult := accountRangeTest(t, &trie, state, &common.Hash{0x0}, AccountRangeMaxResults, AccountRangeMaxResults)
t.Logf("test pagination 2")
secondResult := accountRangeTest(t, &trie, state, &firstResult.Next, AccountRangeMaxResults, AccountRangeMaxResults)
hList := make(resultHash, 0)
for h1, addr1 := range firstResult.Accounts {
h := &common.Hash{}
h.SetBytes(h1.Bytes())
hList = append(hList, h)
for h2, addr2 := range secondResult.Accounts {
// Make sure that the hashes aren't the same
if bytes.Equal(h1.Bytes(), h2.Bytes()) {
t.Fatalf("pagination test failed: results should not overlap")
}
// If either address is nil, then it makes no sense to compare
// them as they might be two different accounts.
if addr1 == nil || addr2 == nil {
continue
}
// Since the two hashes are different, they should not have
// the same preimage, but let's check anyway in case there
// is a bug in the (hash, addr) map generation code.
if bytes.Equal(addr1.Bytes(), addr2.Bytes()) {
t.Fatalf("pagination test failed: addresses should not repeat")
}
}
}
// Test to see if it's possible to recover from the middle of the previous
// set and get an even split between the first and second sets.
t.Logf("test random access pagination")
sort.Sort(hList)
middleH := hList[AccountRangeMaxResults/2]
middleResult := accountRangeTest(t, &trie, state, middleH, AccountRangeMaxResults, AccountRangeMaxResults)
innone, infirst, insecond := 0, 0, 0
for h := range middleResult.Accounts {
if _, ok := firstResult.Accounts[h]; ok {
infirst++
} else if _, ok := secondResult.Accounts[h]; ok {
insecond++
} else {
innone++
}
}
if innone != 0 {
t.Fatalf("%d hashes in the 'middle' set were neither in the first not the second set", innone)
}
if infirst != AccountRangeMaxResults/2 {
t.Fatalf("Imbalance in the number of first-test results: %d != %d", infirst, AccountRangeMaxResults/2)
}
if insecond != AccountRangeMaxResults/2 {
t.Fatalf("Imbalance in the number of second-test results: %d != %d", insecond, AccountRangeMaxResults/2)
}
}
func TestEmptyAccountRange(t *testing.T) {
var (
statedb = state.NewDatabase(rawdb.NewMemoryDatabase())
state, _ = state.New(common.Hash{}, statedb)
)
state.Commit(true)
root := state.IntermediateRoot(true)
trie, err := statedb.OpenTrie(root)
if err != nil {
t.Fatal(err)
}
results, err := accountRange(trie, &common.Hash{0x0}, AccountRangeMaxResults)
if err != nil {
t.Fatalf("Empty results should not trigger an error: %v", err)
}
if results.Next != common.HexToHash("0") {
t.Fatalf("Empty results should not return a second page")
}
if len(results.Accounts) != 0 {
t.Fatalf("Empty state should not return addresses: %v", results.Accounts)
}
}
func TestStorageRangeAt(t *testing.T) {
// Create a state where account 0x010000... has a few storage entries.
var (
state, _ = state.New(common.Hash{}, state.NewDatabase(rawdb.NewMemoryDatabase()))
addr = common.Address{0x01}
keys = []common.Hash{ // hashes of Keys of storage
common.HexToHash("340dd630ad21bf010b4e676dbfa9ba9a02175262d1fa356232cfde6cb5b47ef2"),
common.HexToHash("426fcb404ab2d5d8e61a3d918108006bbb0a9be65e92235bb10eefbdb6dcd053"),
common.HexToHash("48078cfed56339ea54962e72c37c7f588fc4f8e5bc173827ba75cb10a63a96a5"),
common.HexToHash("5723d2c3a83af9b735e3b7f21531e5623d183a9095a56604ead41f3582fdfb75"),
}
storage = storageMap{
keys[0]: {Key: &common.Hash{0x02}, Value: common.Hash{0x01}},
keys[1]: {Key: &common.Hash{0x04}, Value: common.Hash{0x02}},
keys[2]: {Key: &common.Hash{0x01}, Value: common.Hash{0x03}},
keys[3]: {Key: &common.Hash{0x03}, Value: common.Hash{0x04}},
}
)
for _, entry := range storage {
state.SetState(addr, *entry.Key, entry.Value)
}
// Check a few combinations of limit and start/end.
tests := []struct {
start []byte
limit int
want StorageRangeResult
}{
{
start: []byte{}, limit: 0,
want: StorageRangeResult{storageMap{}, &keys[0]},
},
{
start: []byte{}, limit: 100,
want: StorageRangeResult{storage, nil},
},
{
start: []byte{}, limit: 2,
want: StorageRangeResult{storageMap{keys[0]: storage[keys[0]], keys[1]: storage[keys[1]]}, &keys[2]},
},
{
start: []byte{0x00}, limit: 4,
want: StorageRangeResult{storage, nil},
},
{
start: []byte{0x40}, limit: 2,
want: StorageRangeResult{storageMap{keys[1]: storage[keys[1]], keys[2]: storage[keys[2]]}, &keys[3]},
},
}
for _, test := range tests {
result, err := storageRangeAt(state.StorageTrie(addr), test.start, test.limit)
if err != nil {
t.Error(err)
}
if !reflect.DeepEqual(result, test.want) {
t.Fatalf("wrong result for range 0x%x.., limit %d:\ngot %s\nwant %s",
test.start, test.limit, dumper.Sdump(result), dumper.Sdump(&test.want))
}
}
}