Official Go implementation of the Ethereum protocol
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go-ethereum/core/block_validator_test.go

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9.2 KiB

// 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 core
import (
"math/big"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/consensus/beacon"
"github.com/ethereum/go-ethereum/consensus/clique"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/params"
)
// Tests that simple header verification works, for both good and bad blocks.
func TestHeaderVerification(t *testing.T) {
testHeaderVerification(t, rawdb.HashScheme)
testHeaderVerification(t, rawdb.PathScheme)
}
func testHeaderVerification(t *testing.T, scheme string) {
// Create a simple chain to verify
var (
gspec = &Genesis{Config: params.TestChainConfig}
_, blocks, _ = GenerateChainWithGenesis(gspec, ethash.NewFaker(), 8, nil)
)
headers := make([]*types.Header, len(blocks))
for i, block := range blocks {
headers[i] = block.Header()
}
// Run the header checker for blocks one-by-one, checking for both valid and invalid nonces
chain, _ := NewBlockChain(rawdb.NewMemoryDatabase(), DefaultCacheConfigWithScheme(scheme), gspec, nil, ethash.NewFaker(), vm.Config{}, nil, nil)
defer chain.Stop()
for i := 0; i < len(blocks); i++ {
for j, valid := range []bool{true, false} {
var results <-chan error
if valid {
engine := ethash.NewFaker()
_, results = engine.VerifyHeaders(chain, []*types.Header{headers[i]})
} else {
engine := ethash.NewFakeFailer(headers[i].Number.Uint64())
_, results = engine.VerifyHeaders(chain, []*types.Header{headers[i]})
}
// Wait for the verification result
select {
case result := <-results:
if (result == nil) != valid {
t.Errorf("test %d.%d: validity mismatch: have %v, want %v", i, j, result, valid)
}
case <-time.After(time.Second):
t.Fatalf("test %d.%d: verification timeout", i, j)
}
// Make sure no more data is returned
select {
case result := <-results:
t.Fatalf("test %d.%d: unexpected result returned: %v", i, j, result)
case <-time.After(25 * time.Millisecond):
}
}
chain.InsertChain(blocks[i : i+1])
}
}
func TestHeaderVerificationForMergingClique(t *testing.T) { testHeaderVerificationForMerging(t, true) }
func TestHeaderVerificationForMergingEthash(t *testing.T) { testHeaderVerificationForMerging(t, false) }
// Tests the verification for eth1/2 merging, including pre-merge and post-merge
func testHeaderVerificationForMerging(t *testing.T, isClique bool) {
var (
gspec *Genesis
preBlocks []*types.Block
postBlocks []*types.Block
engine consensus.Engine
merger = consensus.NewMerger(rawdb.NewMemoryDatabase())
)
if isClique {
var (
key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
addr = crypto.PubkeyToAddress(key.PublicKey)
config = *params.AllCliqueProtocolChanges
)
engine = beacon.New(clique.New(params.AllCliqueProtocolChanges.Clique, rawdb.NewMemoryDatabase()))
gspec = &Genesis{
Config: &config,
ExtraData: make([]byte, 32+common.AddressLength+crypto.SignatureLength),
Alloc: map[common.Address]GenesisAccount{
addr: {Balance: big.NewInt(1)},
},
BaseFee: big.NewInt(params.InitialBaseFee),
Difficulty: new(big.Int),
}
copy(gspec.ExtraData[32:], addr[:])
td := 0
genDb, blocks, _ := GenerateChainWithGenesis(gspec, engine, 8, nil)
for i, block := range blocks {
header := block.Header()
if i > 0 {
header.ParentHash = blocks[i-1].Hash()
}
header.Extra = make([]byte, 32+crypto.SignatureLength)
header.Difficulty = big.NewInt(2)
sig, _ := crypto.Sign(engine.SealHash(header).Bytes(), key)
copy(header.Extra[len(header.Extra)-crypto.SignatureLength:], sig)
blocks[i] = block.WithSeal(header)
// calculate td
td += int(block.Difficulty().Uint64())
}
preBlocks = blocks
gspec.Config.TerminalTotalDifficulty = big.NewInt(int64(td))
postBlocks, _ = GenerateChain(gspec.Config, preBlocks[len(preBlocks)-1], engine, genDb, 8, nil)
} else {
config := *params.TestChainConfig
gspec = &Genesis{Config: &config}
engine = beacon.New(ethash.NewFaker())
td := int(params.GenesisDifficulty.Uint64())
genDb, blocks, _ := GenerateChainWithGenesis(gspec, engine, 8, nil)
for _, block := range blocks {
// calculate td
td += int(block.Difficulty().Uint64())
}
preBlocks = blocks
gspec.Config.TerminalTotalDifficulty = big.NewInt(int64(td))
t.Logf("Set ttd to %v\n", gspec.Config.TerminalTotalDifficulty)
postBlocks, _ = GenerateChain(gspec.Config, preBlocks[len(preBlocks)-1], engine, genDb, 8, func(i int, gen *BlockGen) {
gen.SetPoS()
})
}
// Assemble header batch
preHeaders := make([]*types.Header, len(preBlocks))
for i, block := range preBlocks {
preHeaders[i] = block.Header()
t.Logf("Pre-merge header: %d", block.NumberU64())
}
postHeaders := make([]*types.Header, len(postBlocks))
for i, block := range postBlocks {
postHeaders[i] = block.Header()
t.Logf("Post-merge header: %d", block.NumberU64())
}
// Run the header checker for blocks one-by-one, checking for both valid and invalid nonces
chain, _ := NewBlockChain(rawdb.NewMemoryDatabase(), nil, gspec, nil, engine, vm.Config{}, nil, nil)
defer chain.Stop()
// Verify the blocks before the merging
for i := 0; i < len(preBlocks); i++ {
_, results := engine.VerifyHeaders(chain, []*types.Header{preHeaders[i]})
// Wait for the verification result
select {
case result := <-results:
if result != nil {
t.Errorf("pre-block %d: verification failed %v", i, result)
}
case <-time.After(time.Second):
t.Fatalf("pre-block %d: verification timeout", i)
}
// Make sure no more data is returned
select {
case result := <-results:
t.Fatalf("pre-block %d: unexpected result returned: %v", i, result)
case <-time.After(25 * time.Millisecond):
}
chain.InsertChain(preBlocks[i : i+1])
}
// Make the transition
merger.ReachTTD()
merger.FinalizePoS()
// Verify the blocks after the merging
for i := 0; i < len(postBlocks); i++ {
_, results := engine.VerifyHeaders(chain, []*types.Header{postHeaders[i]})
// Wait for the verification result
select {
case result := <-results:
if result != nil {
t.Errorf("post-block %d: verification failed %v", i, result)
}
case <-time.After(time.Second):
t.Fatalf("test %d: verification timeout", i)
}
// Make sure no more data is returned
select {
case result := <-results:
t.Fatalf("post-block %d: unexpected result returned: %v", i, result)
case <-time.After(25 * time.Millisecond):
}
chain.InsertBlockWithoutSetHead(postBlocks[i])
}
// Verify the blocks with pre-merge blocks and post-merge blocks
var headers []*types.Header
for _, block := range preBlocks {
headers = append(headers, block.Header())
}
for _, block := range postBlocks {
headers = append(headers, block.Header())
}
_, results := engine.VerifyHeaders(chain, headers)
for i := 0; i < len(headers); i++ {
select {
case result := <-results:
if result != nil {
t.Errorf("test %d: verification failed %v", i, result)
}
case <-time.After(time.Second):
t.Fatalf("test %d: verification timeout", i)
}
}
// Make sure no more data is returned
select {
case result := <-results:
t.Fatalf("unexpected result returned: %v", result)
case <-time.After(25 * time.Millisecond):
}
}
func TestCalcGasLimit(t *testing.T) {
for i, tc := range []struct {
pGasLimit uint64
max uint64
min uint64
}{
{20000000, 20019530, 19980470},
{40000000, 40039061, 39960939},
} {
// Increase
if have, want := CalcGasLimit(tc.pGasLimit, 2*tc.pGasLimit), tc.max; have != want {
t.Errorf("test %d: have %d want <%d", i, have, want)
}
// Decrease
if have, want := CalcGasLimit(tc.pGasLimit, 0), tc.min; have != want {
t.Errorf("test %d: have %d want >%d", i, have, want)
}
// Small decrease
if have, want := CalcGasLimit(tc.pGasLimit, tc.pGasLimit-1), tc.pGasLimit-1; have != want {
t.Errorf("test %d: have %d want %d", i, have, want)
}
// Small increase
if have, want := CalcGasLimit(tc.pGasLimit, tc.pGasLimit+1), tc.pGasLimit+1; have != want {
t.Errorf("test %d: have %d want %d", i, have, want)
}
// No change
if have, want := CalcGasLimit(tc.pGasLimit, tc.pGasLimit), tc.pGasLimit; have != want {
t.Errorf("test %d: have %d want %d", i, have, want)
}
}
}