package core import ( "encoding/binary" "errors" "fmt" "strings" "sync/atomic" "testing" "time" "github.com/nspcc-dev/neo-go/internal/testchain" "github.com/nspcc-dev/neo-go/pkg/config" "github.com/nspcc-dev/neo-go/pkg/core/block" "github.com/nspcc-dev/neo-go/pkg/core/state" "github.com/nspcc-dev/neo-go/pkg/core/storage" "github.com/nspcc-dev/neo-go/pkg/core/transaction" "github.com/nspcc-dev/neo-go/pkg/smartcontract" "github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger" "github.com/nspcc-dev/neo-go/pkg/util" "github.com/nspcc-dev/neo-go/pkg/util/slice" "github.com/nspcc-dev/neo-go/pkg/vm/opcode" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" "go.uber.org/zap/zaptest" ) func TestVerifyHeader(t *testing.T) { bc := newTestChain(t) prev := bc.topBlock.Load().(*block.Block).Header t.Run("Invalid", func(t *testing.T) { t.Run("Hash", func(t *testing.T) { h := prev.Hash() h[0] = ^h[0] hdr := newBlock(bc.config, 1, h).Header require.True(t, errors.Is(bc.verifyHeader(&hdr, &prev), ErrHdrHashMismatch)) }) t.Run("Index", func(t *testing.T) { hdr := newBlock(bc.config, 3, prev.Hash()).Header require.True(t, errors.Is(bc.verifyHeader(&hdr, &prev), ErrHdrIndexMismatch)) }) t.Run("Timestamp", func(t *testing.T) { hdr := newBlock(bc.config, 1, prev.Hash()).Header hdr.Timestamp = 0 require.True(t, errors.Is(bc.verifyHeader(&hdr, &prev), ErrHdrInvalidTimestamp)) }) }) t.Run("Valid", func(t *testing.T) { hdr := newBlock(bc.config, 1, prev.Hash()).Header require.NoError(t, bc.verifyHeader(&hdr, &prev)) }) } func TestAddBlock(t *testing.T) { const size = 3 bc := newTestChain(t) blocks, err := bc.genBlocks(size) require.NoError(t, err) lastBlock := blocks[len(blocks)-1] assert.Equal(t, lastBlock.Index, bc.HeaderHeight()) assert.Equal(t, lastBlock.Hash(), bc.CurrentHeaderHash()) // This one tests persisting blocks, so it does need to persist() _, err = bc.persist(false) require.NoError(t, err) key := make([]byte, 1+util.Uint256Size) key[0] = byte(storage.DataExecutable) for _, block := range blocks { copy(key[1:], block.Hash().BytesBE()) _, err := bc.dao.Store.Get(key) require.NoErrorf(t, err, "block %s not persisted", block.Hash()) } assert.Equal(t, lastBlock.Index, bc.BlockHeight()) assert.Equal(t, lastBlock.Hash(), bc.CurrentHeaderHash()) } func TestRemoveOldTransfers(t *testing.T) { // Creating proper number of transfers/blocks takes unnecessary time, so emulate // some DB with stale entries. bc := newTestChain(t) h, err := bc.GetHeader(bc.GetHeaderHash(0)) require.NoError(t, err) older := h.Timestamp - 1000 newer := h.Timestamp + 1000 acc1 := util.Uint160{1} acc2 := util.Uint160{2} acc3 := util.Uint160{3} ttl := state.TokenTransferLog{Raw: []byte{1}} // It's incorrect, but who cares. for i := uint32(0); i < 3; i++ { bc.dao.PutTokenTransferLog(acc1, older, i, false, &ttl) } for i := uint32(0); i < 3; i++ { bc.dao.PutTokenTransferLog(acc2, newer, i, false, &ttl) } for i := uint32(0); i < 2; i++ { bc.dao.PutTokenTransferLog(acc3, older, i, true, &ttl) } for i := uint32(0); i < 2; i++ { bc.dao.PutTokenTransferLog(acc3, newer, i, true, &ttl) } _, err = bc.dao.Persist() require.NoError(t, err) _ = bc.removeOldTransfers(0) for i := uint32(0); i < 2; i++ { log, err := bc.dao.GetTokenTransferLog(acc1, older, i, false) require.NoError(t, err) require.Equal(t, 0, len(log.Raw)) } log, err := bc.dao.GetTokenTransferLog(acc1, older, 2, false) require.NoError(t, err) require.NotEqual(t, 0, len(log.Raw)) for i := uint32(0); i < 3; i++ { log, err = bc.dao.GetTokenTransferLog(acc2, newer, i, false) require.NoError(t, err) require.NotEqual(t, 0, len(log.Raw)) } log, err = bc.dao.GetTokenTransferLog(acc3, older, 0, true) require.NoError(t, err) require.Equal(t, 0, len(log.Raw)) log, err = bc.dao.GetTokenTransferLog(acc3, older, 1, true) require.NoError(t, err) require.NotEqual(t, 0, len(log.Raw)) for i := uint32(0); i < 2; i++ { log, err = bc.dao.GetTokenTransferLog(acc3, newer, i, true) require.NoError(t, err) require.NotEqual(t, 0, len(log.Raw)) } } func TestBlockchain_InitWithIncompleteStateJump(t *testing.T) { var ( stateSyncInterval = 4 maxTraceable uint32 = 6 ) spountCfg := func(c *config.Config) { c.ProtocolConfiguration.RemoveUntraceableBlocks = true c.ProtocolConfiguration.StateRootInHeader = true c.ProtocolConfiguration.P2PStateExchangeExtensions = true c.ProtocolConfiguration.StateSyncInterval = stateSyncInterval c.ProtocolConfiguration.MaxTraceableBlocks = maxTraceable c.ProtocolConfiguration.KeepOnlyLatestState = true } bcSpout := newTestChainWithCustomCfg(t, spountCfg) // Generate some content. for i := 0; i < len(bcSpout.GetConfig().StandbyCommittee); i++ { require.NoError(t, bcSpout.AddBlock(bcSpout.newBlock())) } // reach next to the latest state sync point and pretend that we've just restored stateSyncPoint := (int(bcSpout.BlockHeight())/stateSyncInterval + 1) * stateSyncInterval for i := bcSpout.BlockHeight() + 1; i <= uint32(stateSyncPoint); i++ { require.NoError(t, bcSpout.AddBlock(bcSpout.newBlock())) } require.Equal(t, uint32(stateSyncPoint), bcSpout.BlockHeight()) b := bcSpout.newBlock() require.NoError(t, bcSpout.AddHeaders(&b.Header)) // put storage items with STTemp prefix batch := storage.NewMemCachedStore(bcSpout.dao.Store) tempPrefix := storage.STTempStorage if bcSpout.dao.Version.StoragePrefix == tempPrefix { tempPrefix = storage.STStorage } bPrefix := make([]byte, 1) bPrefix[0] = byte(bcSpout.dao.Version.StoragePrefix) bcSpout.dao.Store.Seek(storage.SeekRange{Prefix: bPrefix}, func(k, v []byte) bool { key := slice.Copy(k) key[0] = byte(tempPrefix) value := slice.Copy(v) batch.Put(key, value) return true }) _, err := batch.Persist() require.NoError(t, err) checkNewBlockchainErr := func(t *testing.T, cfg func(c *config.Config), store storage.Store, errText string) { unitTestNetCfg, err := config.Load("../../config", testchain.Network()) require.NoError(t, err) cfg(&unitTestNetCfg) log := zaptest.NewLogger(t) _, err = NewBlockchain(store, unitTestNetCfg.ProtocolConfiguration, log) if len(errText) != 0 { require.Error(t, err) require.True(t, strings.Contains(err.Error(), errText)) } else { require.NoError(t, err) } } boltCfg := func(c *config.Config) { spountCfg(c) c.ProtocolConfiguration.KeepOnlyLatestState = true } // manually store statejump stage to check statejump recover process bPrefix[0] = byte(storage.SYSStateChangeStage) t.Run("invalid state jump stage format", func(t *testing.T) { bcSpout.dao.Store.Put(bPrefix, []byte{0x01, 0x02}) checkNewBlockchainErr(t, boltCfg, bcSpout.dao.Store, "invalid state jump stage format") }) t.Run("missing state sync point", func(t *testing.T) { bcSpout.dao.Store.Put(bPrefix, []byte{byte(stateJumpStarted)}) checkNewBlockchainErr(t, boltCfg, bcSpout.dao.Store, "failed to get state sync point from the storage") }) t.Run("invalid RemoveUntraceableBlocks setting", func(t *testing.T) { bcSpout.dao.Store.Put(bPrefix, []byte{byte(stateJumpStarted)}) point := make([]byte, 4) binary.LittleEndian.PutUint32(point, uint32(stateSyncPoint)) bcSpout.dao.Store.Put([]byte{byte(storage.SYSStateSyncPoint)}, point) checkNewBlockchainErr(t, func(c *config.Config) { boltCfg(c) c.ProtocolConfiguration.RemoveUntraceableBlocks = false }, bcSpout.dao.Store, "state jump was not completed, but P2PStateExchangeExtensions are disabled or archival node capability is on") }) t.Run("invalid state sync point", func(t *testing.T) { bcSpout.dao.Store.Put(bPrefix, []byte{byte(stateJumpStarted)}) point := make([]byte, 4) binary.LittleEndian.PutUint32(point, uint32(len(bcSpout.headerHashes))) bcSpout.dao.Store.Put([]byte{byte(storage.SYSStateSyncPoint)}, point) checkNewBlockchainErr(t, boltCfg, bcSpout.dao.Store, "invalid state sync point") }) for _, stage := range []stateChangeStage{stateJumpStarted, newStorageItemsAdded, staleBlocksRemoved, 0x03} { t.Run(fmt.Sprintf("state jump stage %d", stage), func(t *testing.T) { bcSpout.dao.Store.Put(bPrefix, []byte{byte(stage)}) point := make([]byte, 4) binary.LittleEndian.PutUint32(point, uint32(stateSyncPoint)) bcSpout.dao.Store.Put([]byte{byte(storage.SYSStateSyncPoint)}, point) var errText string if stage == 0x03 { errText = "unknown state jump stage" } checkNewBlockchainErr(t, spountCfg, bcSpout.dao.Store, errText) }) } } func TestChainWithVolatileNumOfValidators(t *testing.T) { bc := newTestChainWithCustomCfg(t, func(c *config.Config) { c.ProtocolConfiguration.ValidatorsCount = 0 c.ProtocolConfiguration.CommitteeHistory = map[uint32]int{ 0: 1, 4: 4, 24: 6, } c.ProtocolConfiguration.ValidatorsHistory = map[uint32]int{ 0: 1, 4: 4, } require.NoError(t, c.ProtocolConfiguration.Validate()) }) require.Equal(t, uint32(0), bc.BlockHeight()) priv0 := testchain.PrivateKeyByID(0) vals, err := bc.GetValidators() require.NoError(t, err) script, err := smartcontract.CreateDefaultMultiSigRedeemScript(vals) require.NoError(t, err) curWit := transaction.Witness{ VerificationScript: script, } for i := 1; i < 26; i++ { comm, err := bc.GetCommittee() require.NoError(t, err) if i < 5 { require.Equal(t, 1, len(comm)) } else if i < 25 { require.Equal(t, 4, len(comm)) } else { require.Equal(t, 6, len(comm)) } // Mimic consensus. if bc.config.ShouldUpdateCommitteeAt(uint32(i)) { vals, err = bc.GetValidators() } else { vals, err = bc.GetNextBlockValidators() } require.NoError(t, err) if i < 4 { require.Equalf(t, 1, len(vals), "at %d", i) } else { require.Equalf(t, 4, len(vals), "at %d", i) } require.NoError(t, err) script, err := smartcontract.CreateDefaultMultiSigRedeemScript(vals) require.NoError(t, err) nextWit := transaction.Witness{ VerificationScript: script, } b := &block.Block{ Header: block.Header{ NextConsensus: nextWit.ScriptHash(), Script: curWit, }, } curWit = nextWit b.PrevHash = bc.GetHeaderHash(i - 1) b.Timestamp = uint64(time.Now().UTC().Unix())*1000 + uint64(i) b.Index = uint32(i) b.RebuildMerkleRoot() if i < 5 { signa := priv0.SignHashable(uint32(bc.config.Magic), b) b.Script.InvocationScript = append([]byte{byte(opcode.PUSHDATA1), byte(len(signa))}, signa...) } else { b.Script.InvocationScript = testchain.Sign(b) } err = bc.AddBlock(b) require.NoErrorf(t, err, "at %d", i) } } func setSigner(tx *transaction.Transaction, h util.Uint160) { tx.Signers = []transaction.Signer{{ Account: h, Scopes: transaction.Global, }} } // This test checks that value of BaseExecFee returned from corresponding Blockchain's method matches // the one provided to the constructor of new interop context. func TestBlockchain_BaseExecFeeBaseStoragePrice_Compat(t *testing.T) { bc := newTestChain(t) check := func(t *testing.T) { ic := bc.newInteropContext(trigger.Application, bc.dao, bc.topBlock.Load().(*block.Block), nil) require.Equal(t, bc.GetBaseExecFee(), ic.BaseExecFee()) require.Equal(t, bc.GetStoragePrice(), ic.BaseStorageFee()) } t.Run("zero block", func(t *testing.T) { check(t) }) t.Run("non-zero block", func(t *testing.T) { require.NoError(t, bc.AddBlock(bc.newBlock())) check(t) }) } func TestBlockchain_IsRunning(t *testing.T) { chain := initTestChain(t, nil, nil) require.False(t, chain.isRunning.Load().(bool)) oldPersisted := atomic.LoadUint32(&chain.persistedHeight) go chain.Run() require.NoError(t, chain.AddBlock(chain.newBlock())) require.Eventually(t, func() bool { persisted := atomic.LoadUint32(&chain.persistedHeight) return persisted > oldPersisted }, 2*persistInterval, 100*time.Millisecond) require.True(t, chain.isRunning.Load().(bool)) chain.Close() require.False(t, chain.isRunning.Load().(bool)) }