Official Go implementation of the Ethereum protocol
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go-ethereum/eth/catalyst/api_test.go

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// Copyright 2020 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 catalyst
import (
"math/big"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"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/eth"
"github.com/ethereum/go-ethereum/eth/ethconfig"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/params"
)
var (
// testKey is a private key to use for funding a tester account.
testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
// testAddr is the Ethereum address of the tester account.
testAddr = crypto.PubkeyToAddress(testKey.PublicKey)
testBalance = big.NewInt(2e18)
)
func generatePreMergeChain(n int) (*core.Genesis, []*types.Block) {
db := rawdb.NewMemoryDatabase()
config := params.AllEthashProtocolChanges
genesis := &core.Genesis{
Config: config,
Alloc: core.GenesisAlloc{testAddr: {Balance: testBalance}},
ExtraData: []byte("test genesis"),
Timestamp: 9000,
BaseFee: big.NewInt(params.InitialBaseFee),
}
testNonce := uint64(0)
generate := func(i int, g *core.BlockGen) {
g.OffsetTime(5)
g.SetExtra([]byte("test"))
tx, _ := types.SignTx(types.NewTransaction(testNonce, common.HexToAddress("0x9a9070028361F7AAbeB3f2F2Dc07F82C4a98A02a"), big.NewInt(1), params.TxGas, big.NewInt(params.InitialBaseFee*2), nil), types.LatestSigner(config), testKey)
g.AddTx(tx)
testNonce++
}
gblock := genesis.ToBlock(db)
engine := ethash.NewFaker()
blocks, _ := core.GenerateChain(config, gblock, engine, db, n, generate)
totalDifficulty := big.NewInt(0)
for _, b := range blocks {
totalDifficulty.Add(totalDifficulty, b.Difficulty())
}
config.TerminalTotalDifficulty = totalDifficulty
return genesis, blocks
}
func TestEth2AssembleBlock(t *testing.T) {
genesis, blocks := generatePreMergeChain(10)
n, ethservice := startEthService(t, genesis, blocks)
defer n.Close()
api := NewConsensusAPI(ethservice, nil)
signer := types.NewEIP155Signer(ethservice.BlockChain().Config().ChainID)
tx, err := types.SignTx(types.NewTransaction(uint64(10), blocks[9].Coinbase(), big.NewInt(1000), params.TxGas, big.NewInt(params.InitialBaseFee), nil), signer, testKey)
if err != nil {
t.Fatalf("error signing transaction, err=%v", err)
}
ethservice.TxPool().AddLocal(tx)
blockParams := PayloadAttributesV1{
Timestamp: blocks[9].Time() + 5,
}
execData, err := api.assembleBlock(blocks[9].Hash(), &blockParams)
if err != nil {
t.Fatalf("error producing block, err=%v", err)
}
if len(execData.Transactions) != 1 {
t.Fatalf("invalid number of transactions %d != 1", len(execData.Transactions))
}
}
func TestEth2AssembleBlockWithAnotherBlocksTxs(t *testing.T) {
genesis, blocks := generatePreMergeChain(10)
n, ethservice := startEthService(t, genesis, blocks[:9])
defer n.Close()
api := NewConsensusAPI(ethservice, nil)
// Put the 10th block's tx in the pool and produce a new block
api.insertTransactions(blocks[9].Transactions())
blockParams := PayloadAttributesV1{
Timestamp: blocks[8].Time() + 5,
}
execData, err := api.assembleBlock(blocks[8].Hash(), &blockParams)
if err != nil {
t.Fatalf("error producing block, err=%v", err)
}
if len(execData.Transactions) != blocks[9].Transactions().Len() {
t.Fatalf("invalid number of transactions %d != 1", len(execData.Transactions))
}
}
func TestSetHeadBeforeTotalDifficulty(t *testing.T) {
genesis, blocks := generatePreMergeChain(10)
n, ethservice := startEthService(t, genesis, blocks)
defer n.Close()
api := NewConsensusAPI(ethservice, nil)
fcState := ForkchoiceStateV1{
HeadBlockHash: blocks[5].Hash(),
SafeBlockHash: common.Hash{},
FinalizedBlockHash: common.Hash{},
}
if _, err := api.ForkchoiceUpdatedV1(fcState, nil); err == nil {
t.Errorf("fork choice updated before total terminal difficulty should fail")
}
}
func TestEth2PrepareAndGetPayload(t *testing.T) {
genesis, blocks := generatePreMergeChain(10)
// We need to properly set the terminal total difficulty
genesis.Config.TerminalTotalDifficulty.Sub(genesis.Config.TerminalTotalDifficulty, blocks[9].Difficulty())
n, ethservice := startEthService(t, genesis, blocks[:9])
defer n.Close()
api := NewConsensusAPI(ethservice, nil)
// Put the 10th block's tx in the pool and produce a new block
api.insertTransactions(blocks[9].Transactions())
blockParams := PayloadAttributesV1{
Timestamp: blocks[8].Time() + 5,
}
fcState := ForkchoiceStateV1{
HeadBlockHash: blocks[8].Hash(),
SafeBlockHash: common.Hash{},
FinalizedBlockHash: common.Hash{},
}
_, err := api.ForkchoiceUpdatedV1(fcState, &blockParams)
if err != nil {
t.Fatalf("error preparing payload, err=%v", err)
}
payloadID := computePayloadId(fcState.HeadBlockHash, &blockParams)
execData, err := api.GetPayloadV1(hexutil.Bytes(payloadID))
if err != nil {
t.Fatalf("error getting payload, err=%v", err)
}
if len(execData.Transactions) != blocks[9].Transactions().Len() {
t.Fatalf("invalid number of transactions %d != 1", len(execData.Transactions))
}
}
func checkLogEvents(t *testing.T, logsCh <-chan []*types.Log, rmLogsCh <-chan core.RemovedLogsEvent, wantNew, wantRemoved int) {
t.Helper()
if len(logsCh) != wantNew {
t.Fatalf("wrong number of log events: got %d, want %d", len(logsCh), wantNew)
}
if len(rmLogsCh) != wantRemoved {
t.Fatalf("wrong number of removed log events: got %d, want %d", len(rmLogsCh), wantRemoved)
}
// Drain events.
for i := 0; i < len(logsCh); i++ {
<-logsCh
}
for i := 0; i < len(rmLogsCh); i++ {
<-rmLogsCh
}
}
func TestEth2NewBlock(t *testing.T) {
genesis, preMergeBlocks := generatePreMergeChain(10)
n, ethservice := startEthService(t, genesis, preMergeBlocks)
ethservice.Merger().ReachTTD()
defer n.Close()
var (
api = NewConsensusAPI(ethservice, nil)
parent = preMergeBlocks[len(preMergeBlocks)-1]
// This EVM code generates a log when the contract is created.
logCode = common.Hex2Bytes("60606040525b7f24ec1d3ff24c2f6ff210738839dbc339cd45a5294d85c79361016243157aae7b60405180905060405180910390a15b600a8060416000396000f360606040526008565b00")
)
// The event channels.
newLogCh := make(chan []*types.Log, 10)
rmLogsCh := make(chan core.RemovedLogsEvent, 10)
ethservice.BlockChain().SubscribeLogsEvent(newLogCh)
ethservice.BlockChain().SubscribeRemovedLogsEvent(rmLogsCh)
for i := 0; i < 10; i++ {
statedb, _ := ethservice.BlockChain().StateAt(parent.Root())
nonce := statedb.GetNonce(testAddr)
tx, _ := types.SignTx(types.NewContractCreation(nonce, new(big.Int), 1000000, big.NewInt(2*params.InitialBaseFee), logCode), types.LatestSigner(ethservice.BlockChain().Config()), testKey)
ethservice.TxPool().AddLocal(tx)
execData, err := api.assembleBlock(parent.Hash(), &PayloadAttributesV1{
Timestamp: parent.Time() + 5,
})
if err != nil {
t.Fatalf("Failed to create the executable data %v", err)
}
block, err := ExecutableDataToBlock(*execData)
if err != nil {
t.Fatalf("Failed to convert executable data to block %v", err)
}
newResp, err := api.ExecutePayloadV1(*execData)
if err != nil || newResp.Status != "VALID" {
t.Fatalf("Failed to insert block: %v", err)
}
if ethservice.BlockChain().CurrentBlock().NumberU64() != block.NumberU64()-1 {
t.Fatalf("Chain head shouldn't be updated")
}
checkLogEvents(t, newLogCh, rmLogsCh, 0, 0)
fcState := ForkchoiceStateV1{
HeadBlockHash: block.Hash(),
SafeBlockHash: block.Hash(),
FinalizedBlockHash: block.Hash(),
}
if _, err := api.ForkchoiceUpdatedV1(fcState, nil); err != nil {
t.Fatalf("Failed to insert block: %v", err)
}
if ethservice.BlockChain().CurrentBlock().NumberU64() != block.NumberU64() {
t.Fatalf("Chain head should be updated")
}
checkLogEvents(t, newLogCh, rmLogsCh, 1, 0)
parent = block
}
// Introduce fork chain
var (
head = ethservice.BlockChain().CurrentBlock().NumberU64()
)
parent = preMergeBlocks[len(preMergeBlocks)-1]
for i := 0; i < 10; i++ {
execData, err := api.assembleBlock(parent.Hash(), &PayloadAttributesV1{
Timestamp: parent.Time() + 6,
})
if err != nil {
t.Fatalf("Failed to create the executable data %v", err)
}
block, err := ExecutableDataToBlock(*execData)
if err != nil {
t.Fatalf("Failed to convert executable data to block %v", err)
}
newResp, err := api.ExecutePayloadV1(*execData)
if err != nil || newResp.Status != "VALID" {
t.Fatalf("Failed to insert block: %v", err)
}
if ethservice.BlockChain().CurrentBlock().NumberU64() != head {
t.Fatalf("Chain head shouldn't be updated")
}
fcState := ForkchoiceStateV1{
HeadBlockHash: block.Hash(),
SafeBlockHash: block.Hash(),
FinalizedBlockHash: block.Hash(),
}
if _, err := api.ForkchoiceUpdatedV1(fcState, nil); err != nil {
t.Fatalf("Failed to insert block: %v", err)
}
if ethservice.BlockChain().CurrentBlock().NumberU64() != block.NumberU64() {
t.Fatalf("Chain head should be updated")
}
parent, head = block, block.NumberU64()
}
}
func TestEth2DeepReorg(t *testing.T) {
// TODO (MariusVanDerWijden) TestEth2DeepReorg is currently broken, because it tries to reorg
// before the totalTerminalDifficulty threshold
/*
genesis, preMergeBlocks := generatePreMergeChain(core.TriesInMemory * 2)
n, ethservice := startEthService(t, genesis, preMergeBlocks)
defer n.Close()
var (
api = NewConsensusAPI(ethservice, nil)
parent = preMergeBlocks[len(preMergeBlocks)-core.TriesInMemory-1]
head = ethservice.BlockChain().CurrentBlock().NumberU64()
)
if ethservice.BlockChain().HasBlockAndState(parent.Hash(), parent.NumberU64()) {
t.Errorf("Block %d not pruned", parent.NumberU64())
}
for i := 0; i < 10; i++ {
execData, err := api.assembleBlock(AssembleBlockParams{
ParentHash: parent.Hash(),
Timestamp: parent.Time() + 5,
})
if err != nil {
t.Fatalf("Failed to create the executable data %v", err)
}
block, err := ExecutableDataToBlock(ethservice.BlockChain().Config(), parent.Header(), *execData)
if err != nil {
t.Fatalf("Failed to convert executable data to block %v", err)
}
newResp, err := api.ExecutePayload(*execData)
if err != nil || newResp.Status != "VALID" {
t.Fatalf("Failed to insert block: %v", err)
}
if ethservice.BlockChain().CurrentBlock().NumberU64() != head {
t.Fatalf("Chain head shouldn't be updated")
}
if err := api.setHead(block.Hash()); err != nil {
t.Fatalf("Failed to set head: %v", err)
}
if ethservice.BlockChain().CurrentBlock().NumberU64() != block.NumberU64() {
t.Fatalf("Chain head should be updated")
}
parent, head = block, block.NumberU64()
}
*/
}
// startEthService creates a full node instance for testing.
func startEthService(t *testing.T, genesis *core.Genesis, blocks []*types.Block) (*node.Node, *eth.Ethereum) {
t.Helper()
n, err := node.New(&node.Config{})
if err != nil {
t.Fatal("can't create node:", err)
}
ethcfg := &ethconfig.Config{Genesis: genesis, Ethash: ethash.Config{PowMode: ethash.ModeFake}, TrieTimeout: time.Minute, TrieDirtyCache: 256, TrieCleanCache: 256}
ethservice, err := eth.New(n, ethcfg)
if err != nil {
t.Fatal("can't create eth service:", err)
}
if err := n.Start(); err != nil {
t.Fatal("can't start node:", err)
}
if _, err := ethservice.BlockChain().InsertChain(blocks); err != nil {
n.Close()
t.Fatal("can't import test blocks:", err)
}
ethservice.SetEtherbase(testAddr)
ethservice.SetSynced()
return n, ethservice
}
func TestFullAPI(t *testing.T) {
genesis, preMergeBlocks := generatePreMergeChain(10)
n, ethservice := startEthService(t, genesis, preMergeBlocks)
ethservice.Merger().ReachTTD()
defer n.Close()
var (
api = NewConsensusAPI(ethservice, nil)
parent = ethservice.BlockChain().CurrentBlock()
// This EVM code generates a log when the contract is created.
logCode = common.Hex2Bytes("60606040525b7f24ec1d3ff24c2f6ff210738839dbc339cd45a5294d85c79361016243157aae7b60405180905060405180910390a15b600a8060416000396000f360606040526008565b00")
)
for i := 0; i < 10; i++ {
statedb, _ := ethservice.BlockChain().StateAt(parent.Root())
nonce := statedb.GetNonce(testAddr)
tx, _ := types.SignTx(types.NewContractCreation(nonce, new(big.Int), 1000000, big.NewInt(2*params.InitialBaseFee), logCode), types.LatestSigner(ethservice.BlockChain().Config()), testKey)
ethservice.TxPool().AddLocal(tx)
params := PayloadAttributesV1{
Timestamp: parent.Time() + 1,
Random: crypto.Keccak256Hash([]byte{byte(i)}),
SuggestedFeeRecipient: parent.Coinbase(),
}
fcState := ForkchoiceStateV1{
HeadBlockHash: parent.Hash(),
SafeBlockHash: common.Hash{},
FinalizedBlockHash: common.Hash{},
}
resp, err := api.ForkchoiceUpdatedV1(fcState, &params)
if err != nil {
t.Fatalf("error preparing payload, err=%v", err)
}
if resp.Status != SUCCESS.Status {
t.Fatalf("error preparing payload, invalid status: %v", resp.Status)
}
payloadID := computePayloadId(parent.Hash(), &params)
payload, err := api.GetPayloadV1(hexutil.Bytes(payloadID))
if err != nil {
t.Fatalf("can't get payload: %v", err)
}
execResp, err := api.ExecutePayloadV1(*payload)
if err != nil {
t.Fatalf("can't execute payload: %v", err)
}
if execResp.Status != VALID.Status {
t.Fatalf("invalid status: %v", execResp.Status)
}
fcState = ForkchoiceStateV1{
HeadBlockHash: payload.BlockHash,
SafeBlockHash: payload.ParentHash,
FinalizedBlockHash: payload.ParentHash,
}
if _, err := api.ForkchoiceUpdatedV1(fcState, nil); err != nil {
t.Fatalf("Failed to insert block: %v", err)
}
if ethservice.BlockChain().CurrentBlock().NumberU64() != payload.Number {
t.Fatalf("Chain head should be updated")
}
parent = ethservice.BlockChain().CurrentBlock()
}
}