mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-25 21:07:18 +00:00
449 lines
12 KiB
Go
449 lines
12 KiB
Go
package blockchain
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import (
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"context"
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"errors"
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"io/ioutil"
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"math/big"
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"testing"
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ethereum "github.com/ethereum/go-ethereum"
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"github.com/ethereum/go-ethereum/common"
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gethTypes "github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/event"
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"github.com/prysmaticlabs/prysm/beacon-chain/core/types"
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"github.com/prysmaticlabs/prysm/beacon-chain/db"
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"github.com/prysmaticlabs/prysm/beacon-chain/internal"
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"github.com/prysmaticlabs/prysm/beacon-chain/powchain"
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pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
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"github.com/prysmaticlabs/prysm/shared/params"
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"github.com/prysmaticlabs/prysm/shared/testutil"
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"github.com/sirupsen/logrus"
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logTest "github.com/sirupsen/logrus/hooks/test"
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)
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func init() {
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logrus.SetLevel(logrus.DebugLevel)
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logrus.SetOutput(ioutil.Discard)
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}
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type mockClient struct{}
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func (f *mockClient) SubscribeNewHead(ctx context.Context, ch chan<- *gethTypes.Header) (ethereum.Subscription, error) {
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return new(event.Feed).Subscribe(ch), nil
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}
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func (f *mockClient) BlockByHash(ctx context.Context, hash common.Hash) (*gethTypes.Block, error) {
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head := &gethTypes.Header{Number: big.NewInt(0), Difficulty: big.NewInt(100)}
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return gethTypes.NewBlockWithHeader(head), nil
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}
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func (f *mockClient) SubscribeFilterLogs(ctx context.Context, q ethereum.FilterQuery, ch chan<- gethTypes.Log) (ethereum.Subscription, error) {
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return new(event.Feed).Subscribe(ch), nil
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}
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func (f *mockClient) LatestBlockHash() common.Hash {
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return common.BytesToHash([]byte{'A'})
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}
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type faultyClient struct{}
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func (f *faultyClient) SubscribeNewHead(ctx context.Context, ch chan<- *gethTypes.Header) (ethereum.Subscription, error) {
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return new(event.Feed).Subscribe(ch), nil
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}
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func (f *faultyClient) BlockByHash(ctx context.Context, hash common.Hash) (*gethTypes.Block, error) {
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return nil, errors.New("failed")
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}
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func (f *faultyClient) SubscribeFilterLogs(ctx context.Context, q ethereum.FilterQuery, ch chan<- gethTypes.Log) (ethereum.Subscription, error) {
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return new(event.Feed).Subscribe(ch), nil
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}
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func (f *faultyClient) LatestBlockHash() common.Hash {
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return common.BytesToHash([]byte{'A'})
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}
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func setupBeaconChain(t *testing.T, faultyPoWClient bool, beaconDB *db.BeaconDB) *ChainService {
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endpoint := "ws://127.0.0.1"
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ctx := context.Background()
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var web3Service *powchain.Web3Service
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var err error
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if faultyPoWClient {
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client := &faultyClient{}
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web3Service, err = powchain.NewWeb3Service(ctx, &powchain.Web3ServiceConfig{
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Endpoint: endpoint,
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Pubkey: "",
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VrcAddr: common.Address{},
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Reader: client,
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Client: client,
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Logger: client,
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})
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} else {
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client := &mockClient{}
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web3Service, err = powchain.NewWeb3Service(ctx, &powchain.Web3ServiceConfig{
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Endpoint: endpoint,
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Pubkey: "",
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VrcAddr: common.Address{},
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Reader: client,
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Client: client,
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Logger: client,
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})
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}
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if err != nil {
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t.Fatalf("unable to set up web3 service: %v", err)
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}
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if err := beaconDB.InitializeState(nil); err != nil {
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t.Fatalf("failed to initialize state: %v", err)
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}
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cfg := &Config{
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BeaconBlockBuf: 0,
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BeaconDB: beaconDB,
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Web3Service: web3Service,
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EnablePOWChain: true,
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}
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if err != nil {
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t.Fatalf("could not register blockchain service: %v", err)
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}
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chainService, err := NewChainService(ctx, cfg)
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if err != nil {
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t.Fatalf("unable to setup chain service: %v", err)
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}
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return chainService
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}
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func SetSlotInState(service *ChainService, slot uint64) error {
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bState, err := service.beaconDB.GetState()
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if err != nil {
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return err
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}
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bState.SetSlot(slot)
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return service.beaconDB.SaveState(bState)
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}
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func TestStartStop(t *testing.T) {
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db := internal.SetupDB(t)
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defer internal.TeardownDB(t, db)
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chainService := setupBeaconChain(t, false, db)
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chainService.IncomingBlockFeed()
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// Test the start function.
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chainService.Start()
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if err := chainService.Stop(); err != nil {
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t.Fatalf("unable to stop chain service: %v", err)
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}
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// The context should have been canceled.
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if chainService.ctx.Err() == nil {
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t.Error("context was not canceled")
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}
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}
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func TestRunningChainServiceFaultyPOWChain(t *testing.T) {
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hook := logTest.NewGlobal()
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db := internal.SetupDB(t)
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defer internal.TeardownDB(t, db)
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chainService := setupBeaconChain(t, true, db)
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if err := SetSlotInState(chainService, 1); err != nil {
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t.Fatal(err)
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}
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parentBlock := types.NewBlock(&pb.BeaconBlock{
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Slot: 1,
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})
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parentHash, err := parentBlock.Hash()
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if err != nil {
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t.Fatalf("Unable to hash block %v", err)
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}
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if err := chainService.beaconDB.SaveBlock(parentBlock); err != nil {
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t.Fatalf("Unable to save block %v", err)
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}
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block := types.NewBlock(&pb.BeaconBlock{
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Slot: 2,
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ParentRootHash32: parentHash[:],
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CandidatePowReceiptRootHash32: []byte("a"),
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})
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blockChan := make(chan *types.Block)
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exitRoutine := make(chan bool)
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go func() {
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chainService.blockProcessing(blockChan)
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<-exitRoutine
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}()
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if err := chainService.beaconDB.SaveBlock(block); err != nil {
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t.Fatal(err)
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}
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chainService.incomingBlockChan <- block
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<-blockChan
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chainService.cancel()
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exitRoutine <- true
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testutil.AssertLogsContain(t, hook, "unable to retrieve POW chain reference block failed")
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}
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func TestRunningChainService(t *testing.T) {
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hook := logTest.NewGlobal()
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db := internal.SetupDB(t)
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defer internal.TeardownDB(t, db)
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chainService := setupBeaconChain(t, false, db)
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beaconState, err := types.NewGenesisBeaconState(nil)
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if err != nil {
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t.Fatalf("Can't generate genesis state: %v", err)
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}
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stateRoot, _ := beaconState.Hash()
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genesis := types.NewGenesisBlock([32]byte{})
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chainService.beaconDB.SaveBlock(genesis)
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parentHash, err := genesis.Hash()
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if err != nil {
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t.Fatalf("unable to get hash of canonical head: %v", err)
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}
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beaconState, err = chainService.beaconDB.GetState()
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if err != nil {
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t.Fatalf("Can't get state from db %v", err)
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}
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var shardAndCommittees []*pb.ShardAndCommitteeArray
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for i := uint64(0); i < params.BeaconConfig().EpochLength*2; i++ {
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shardAndCommittees = append(shardAndCommittees, &pb.ShardAndCommitteeArray{
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ArrayShardAndCommittee: []*pb.ShardAndCommittee{
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{Committee: []uint32{9, 8, 311, 12, 92, 1, 23, 17}},
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},
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})
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}
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beaconState.SetShardAndCommitteesAtSlots(shardAndCommittees)
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if err := chainService.beaconDB.SaveState(beaconState); err != nil {
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t.Fatal(err)
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}
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currentSlot := uint64(1)
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attestationSlot := uint64(0)
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shard := beaconState.ShardAndCommitteesForSlots()[attestationSlot].ArrayShardAndCommittee[0].Shard
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block := types.NewBlock(&pb.BeaconBlock{
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Slot: currentSlot + 1,
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StateRootHash32: stateRoot[:],
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ParentRootHash32: parentHash[:],
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CandidatePowReceiptRootHash32: []byte("a"),
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Attestations: []*pb.AggregatedAttestation{{
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Slot: attestationSlot,
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AttesterBitfield: []byte{128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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Shard: shard,
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JustifiedBlockHash: parentHash[:],
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}},
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})
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if err := SetSlotInState(chainService, currentSlot); err != nil {
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t.Fatal(err)
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}
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blockChan := make(chan *types.Block)
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exitRoutine := make(chan bool)
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go func() {
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chainService.blockProcessing(blockChan)
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<-exitRoutine
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}()
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if err := chainService.beaconDB.SaveBlock(block); err != nil {
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t.Fatal(err)
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}
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chainService.incomingBlockChan <- block
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<-blockChan
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chainService.cancel()
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exitRoutine <- true
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testutil.AssertLogsContain(t, hook, "Chain service context closed, exiting goroutine")
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testutil.AssertLogsContain(t, hook, "Processed beacon block")
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}
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func TestDoesPOWBlockExist(t *testing.T) {
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hook := logTest.NewGlobal()
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db := internal.SetupDB(t)
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defer internal.TeardownDB(t, db)
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chainService := setupBeaconChain(t, true, db)
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state, err := chainService.beaconDB.GetState()
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if err != nil {
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t.Fatalf("Unable to retrieve beacon state %v", err)
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}
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// Using a faulty client should throw error.
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exists := chainService.doesPoWBlockExist(state.ProcessedPowReceiptRootHash32())
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if exists {
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t.Error("Block corresponding to nil powchain reference should not exist")
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}
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testutil.AssertLogsContain(t, hook, "fetching PoW block corresponding to mainchain reference failed")
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}
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func TestUpdateHead(t *testing.T) {
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beaconState, err := types.NewGenesisBeaconState(nil)
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if err != nil {
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t.Fatalf("Could not generate genesis state: %v", err)
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}
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stateRoot, _ := beaconState.Hash()
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genesis := types.NewGenesisBlock(stateRoot)
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genesisHash, err := genesis.Hash()
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if err != nil {
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t.Fatalf("Could not get genesis block hash: %v", err)
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}
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// Table driven tests for various fork choice scenarios.
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tests := []struct {
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blockSlot uint64
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state *types.BeaconState
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logAssert string
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}{
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// Higher slot but same crystallized state should trigger chain update.
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{
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blockSlot: 64,
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state: beaconState,
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logAssert: "Chain head block and state updated",
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},
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// Higher slot, different crystallized state, but higher last finalized slot.
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{
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blockSlot: 64,
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state: types.NewBeaconState(&pb.BeaconState{FinalizedSlot: 10}),
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logAssert: "Chain head block and state updated",
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},
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// Higher slot, different crystallized state, same last finalized slot,
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// but last justified slot.
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{
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blockSlot: 64,
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state: types.NewBeaconState(&pb.BeaconState{
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FinalizedSlot: 0,
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JustifiedSlot: 10,
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}),
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logAssert: "Chain head block and state updated",
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},
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// Same slot should not trigger a head update.
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{
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blockSlot: 0,
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state: beaconState,
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logAssert: "Chain head not updated",
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},
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}
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for _, tt := range tests {
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hook := logTest.NewGlobal()
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db := internal.SetupDB(t)
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defer internal.TeardownDB(t, db)
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chainService := setupBeaconChain(t, false, db)
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stateRoot, _ := tt.state.Hash()
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block := types.NewBlock(&pb.BeaconBlock{
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Slot: tt.blockSlot,
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StateRootHash32: stateRoot[:],
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ParentRootHash32: genesisHash[:],
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CandidatePowReceiptRootHash32: []byte("a"),
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})
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h, err := block.Hash()
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if err != nil {
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t.Fatal(err)
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}
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exitRoutine := make(chan bool)
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blockChan := make(chan *types.Block)
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go func() {
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chainService.updateHead(blockChan)
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<-exitRoutine
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}()
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if err := chainService.beaconDB.SaveBlock(block); err != nil {
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t.Fatal(err)
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}
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chainService.unfinalizedBlocks[h] = tt.state
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// If blocks pending processing is empty, the updateHead routine does nothing.
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blockChan <- block
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chainService.cancel()
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exitRoutine <- true
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testutil.AssertLogsContain(t, hook, tt.logAssert)
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}
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}
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func TestIsBlockReadyForProcessing(t *testing.T) {
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db := internal.SetupDB(t)
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defer internal.TeardownDB(t, db)
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chainService := setupBeaconChain(t, false, db)
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beaconState, err := types.NewGenesisBeaconState(nil)
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if err != nil {
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t.Fatalf("Can't generate genesis state: %v", err)
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}
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block := types.NewBlock(&pb.BeaconBlock{
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ParentRootHash32: []byte{'a'},
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})
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if chainService.isBlockReadyForProcessing(block) {
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t.Fatal("block processing succeeded despite block having no parent saved")
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}
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beaconState.SetSlot(10)
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chainService.beaconDB.SaveState(beaconState)
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stateRoot, _ := beaconState.Hash()
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genesis := types.NewGenesisBlock([32]byte{})
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chainService.beaconDB.SaveBlock(genesis)
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parentHash, err := genesis.Hash()
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if err != nil {
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t.Fatalf("unable to get hash of canonical head: %v", err)
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}
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block2 := types.NewBlock(&pb.BeaconBlock{
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ParentRootHash32: parentHash[:],
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Slot: 10,
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})
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if chainService.isBlockReadyForProcessing(block2) {
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t.Fatal("block processing succeeded despite block slot being invalid")
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}
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var h [32]byte
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copy(h[:], []byte("a"))
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beaconState.SetProcessedPowReceiptHash(h)
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beaconState.SetSlot(9)
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chainService.beaconDB.SaveState(beaconState)
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currentSlot := uint64(10)
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attestationSlot := uint64(0)
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shard := beaconState.ShardAndCommitteesForSlots()[attestationSlot].ArrayShardAndCommittee[0].Shard
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block3 := types.NewBlock(&pb.BeaconBlock{
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Slot: currentSlot,
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StateRootHash32: stateRoot[:],
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ParentRootHash32: parentHash[:],
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CandidatePowReceiptRootHash32: []byte("a"),
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Attestations: []*pb.AggregatedAttestation{{
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Slot: attestationSlot,
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AttesterBitfield: []byte{128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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Shard: shard,
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JustifiedBlockHash: parentHash[:],
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}},
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})
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chainService.enablePOWChain = true
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if !chainService.isBlockReadyForProcessing(block3) {
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t.Fatal("block processing failed despite being a valid block")
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}
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}
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