mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-12-24 09:25:21 +00:00
562 lines
17 KiB
Go
562 lines
17 KiB
Go
package consensus
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import (
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"errors"
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"testing"
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"time"
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"github.com/nspcc-dev/dbft/block"
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"github.com/nspcc-dev/dbft/payload"
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"github.com/nspcc-dev/dbft/timer"
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"github.com/nspcc-dev/neo-go/internal/random"
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"github.com/nspcc-dev/neo-go/internal/testchain"
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"github.com/nspcc-dev/neo-go/pkg/config"
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"github.com/nspcc-dev/neo-go/pkg/config/netmode"
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"github.com/nspcc-dev/neo-go/pkg/core"
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"github.com/nspcc-dev/neo-go/pkg/core/blockchainer"
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"github.com/nspcc-dev/neo-go/pkg/core/fee"
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"github.com/nspcc-dev/neo-go/pkg/core/native"
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"github.com/nspcc-dev/neo-go/pkg/core/storage"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/io"
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npayload "github.com/nspcc-dev/neo-go/pkg/network/payload"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm/emit"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/nspcc-dev/neo-go/pkg/wallet"
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"github.com/stretchr/testify/require"
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"go.uber.org/zap/zaptest"
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)
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func TestNewService(t *testing.T) {
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srv := newTestService(t)
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tx := transaction.New([]byte{byte(opcode.PUSH1)}, 100000)
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tx.ValidUntilBlock = 1
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addSender(t, tx)
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signTx(t, srv.Chain, tx)
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require.NoError(t, srv.Chain.PoolTx(tx))
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var txx []block.Transaction
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require.NotPanics(t, func() { txx = srv.getVerifiedTx() })
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require.Len(t, txx, 1)
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require.Equal(t, tx, txx[0])
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}
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func initServiceNextConsensus(t *testing.T, newAcc *wallet.Account, offset uint32) (*service, *wallet.Account) {
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acc, err := wallet.NewAccountFromWIF(testchain.WIF(testchain.IDToOrder(0)))
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require.NoError(t, err)
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priv := acc.PrivateKey()
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require.NoError(t, acc.ConvertMultisig(1, keys.PublicKeys{priv.PublicKey()}))
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bc := newSingleTestChain(t)
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newPriv := newAcc.PrivateKey()
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// Transfer funds to new validator.
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w := io.NewBufBinWriter()
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emit.AppCall(w.BinWriter, bc.GoverningTokenHash(), "transfer", callflag.All,
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acc.Contract.ScriptHash().BytesBE(), newPriv.GetScriptHash().BytesBE(), int64(native.NEOTotalSupply), nil)
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emit.Opcodes(w.BinWriter, opcode.ASSERT)
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emit.AppCall(w.BinWriter, bc.UtilityTokenHash(), "transfer", callflag.All,
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acc.Contract.ScriptHash().BytesBE(), newPriv.GetScriptHash().BytesBE(), int64(10000_000_000_000), nil)
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emit.Opcodes(w.BinWriter, opcode.ASSERT)
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require.NoError(t, w.Err)
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tx := transaction.New(w.Bytes(), 21_000_000)
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tx.ValidUntilBlock = bc.BlockHeight() + 1
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tx.NetworkFee = 10_000_000
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tx.Signers = []transaction.Signer{{Scopes: transaction.Global, Account: acc.Contract.ScriptHash()}}
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require.NoError(t, acc.SignTx(netmode.UnitTestNet, tx))
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require.NoError(t, bc.PoolTx(tx))
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srv := newTestServiceWithChain(t, bc)
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srv.dbft.Start()
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// Register new candidate.
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w.Reset()
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emit.AppCall(w.BinWriter, bc.GoverningTokenHash(), "registerCandidate", callflag.All, newPriv.PublicKey().Bytes())
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require.NoError(t, w.Err)
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tx = transaction.New(w.Bytes(), 1001_00000000)
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tx.ValidUntilBlock = bc.BlockHeight() + 1
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tx.NetworkFee = 20_000_000
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tx.Signers = []transaction.Signer{{Scopes: transaction.Global, Account: newPriv.GetScriptHash()}}
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require.NoError(t, newAcc.SignTx(netmode.UnitTestNet, tx))
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require.NoError(t, bc.PoolTx(tx))
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srv.dbft.OnTimeout(timer.HV{Height: srv.dbft.Context.BlockIndex})
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for i := srv.dbft.BlockIndex; !native.ShouldUpdateCommittee(i+offset, bc); i++ {
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srv.dbft.OnTimeout(timer.HV{Height: srv.dbft.Context.BlockIndex})
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}
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// Vote for new candidate.
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w.Reset()
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emit.AppCall(w.BinWriter, bc.GoverningTokenHash(), "vote", callflag.All,
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newPriv.GetScriptHash(), newPriv.PublicKey().Bytes())
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emit.Opcodes(w.BinWriter, opcode.ASSERT)
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require.NoError(t, w.Err)
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tx = transaction.New(w.Bytes(), 20_000_000)
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tx.ValidUntilBlock = bc.BlockHeight() + 1
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tx.NetworkFee = 20_000_000
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tx.Signers = []transaction.Signer{{Scopes: transaction.Global, Account: newPriv.GetScriptHash()}}
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require.NoError(t, newAcc.SignTx(netmode.UnitTestNet, tx))
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require.NoError(t, bc.PoolTx(tx))
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srv.dbft.OnTimeout(timer.HV{Height: srv.dbft.BlockIndex})
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return srv, acc
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}
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func TestService_NextConsensus(t *testing.T) {
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newAcc, err := wallet.NewAccount()
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require.NoError(t, err)
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script, err := smartcontract.CreateMajorityMultiSigRedeemScript(keys.PublicKeys{newAcc.PrivateKey().PublicKey()})
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require.NoError(t, err)
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checkNextConsensus := func(t *testing.T, bc *core.Blockchain, height uint32, h util.Uint160) {
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hdrHash := bc.GetHeaderHash(int(height))
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hdr, err := bc.GetHeader(hdrHash)
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require.NoError(t, err)
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require.Equal(t, h, hdr.NextConsensus)
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}
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t.Run("vote 1 block before update", func(t *testing.T) { // voting occurs every block in SingleTestChain
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srv, acc := initServiceNextConsensus(t, newAcc, 1)
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bc := srv.Chain.(*core.Blockchain)
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height := bc.BlockHeight()
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checkNextConsensus(t, bc, height, acc.Contract.ScriptHash())
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// Reset <- we are here, update NextConsensus
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// OnPersist <- update committee
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// Block <-
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srv.dbft.OnTimeout(timer.HV{Height: srv.dbft.BlockIndex})
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checkNextConsensus(t, bc, height+1, hash.Hash160(script))
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})
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/*
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t.Run("vote 2 blocks before update", func(t *testing.T) {
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srv, acc := initServiceNextConsensus(t, newAcc, 2)
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bc := srv.Chain.(*core.Blockchain)
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defer bc.Close()
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height := bc.BlockHeight()
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checkNextConsensus(t, bc, height, acc.Contract.ScriptHash())
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// Reset <- we are here
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// OnPersist <- nothing to do
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// Block <-
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//
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// Reset <- update next consensus
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// OnPersist <- update committee
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// Block <-
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srv.dbft.OnTimeout(timer.HV{Height: srv.dbft.BlockIndex})
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checkNextConsensus(t, bc, height+1, acc.Contract.ScriptHash())
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srv.dbft.OnTimeout(timer.HV{Height: srv.dbft.BlockIndex})
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checkNextConsensus(t, bc, height+2, hash.Hash160(script))
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})
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*/
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}
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func TestService_GetVerified(t *testing.T) {
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srv := newTestService(t)
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srv.dbft.Start()
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var txs []*transaction.Transaction
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for i := 0; i < 4; i++ {
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tx := transaction.New([]byte{byte(opcode.PUSH1)}, 100000)
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tx.Nonce = 123 + uint32(i)
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tx.ValidUntilBlock = 1
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txs = append(txs, tx)
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}
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addSender(t, txs...)
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signTx(t, srv.Chain, txs...)
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require.NoError(t, srv.Chain.PoolTx(txs[3]))
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hashes := []util.Uint256{txs[0].Hash(), txs[1].Hash(), txs[2].Hash()}
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// Everyone sends a message.
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for i := 0; i < 4; i++ {
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p := new(Payload)
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// One PrepareRequest and three ChangeViews.
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if i == 1 {
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p.SetType(payload.PrepareRequestType)
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p.SetPayload(&prepareRequest{prevHash: srv.Chain.CurrentBlockHash(), transactionHashes: hashes})
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} else {
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p.SetType(payload.ChangeViewType)
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p.SetPayload(&changeView{newViewNumber: 1, timestamp: uint64(time.Now().UnixNano() / nsInMs)})
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}
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p.SetHeight(1)
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p.SetValidatorIndex(uint16(i))
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priv, _ := getTestValidator(i)
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require.NoError(t, p.Sign(priv))
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// Skip srv.OnPayload, because the service is not really started.
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srv.dbft.OnReceive(p)
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}
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require.Equal(t, uint8(1), srv.dbft.ViewNumber)
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require.Equal(t, hashes, srv.lastProposal)
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t.Run("new transactions will be proposed in case of failure", func(t *testing.T) {
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txx := srv.getVerifiedTx()
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require.Equal(t, 1, len(txx), "there is only 1 tx in mempool")
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require.Equal(t, txs[3], txx[0])
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})
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t.Run("more than half of the last proposal will be reused", func(t *testing.T) {
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for _, tx := range txs[:2] {
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require.NoError(t, srv.Chain.PoolTx(tx))
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}
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txx := srv.getVerifiedTx()
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require.Contains(t, txx, txs[0])
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require.Contains(t, txx, txs[1])
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require.NotContains(t, txx, txs[2])
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})
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}
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func TestService_ValidatePayload(t *testing.T) {
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srv := newTestService(t)
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priv, _ := getTestValidator(1)
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p := new(Payload)
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p.Sender = priv.GetScriptHash()
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p.SetPayload(&prepareRequest{})
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t.Run("invalid validator index", func(t *testing.T) {
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p.SetValidatorIndex(11)
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require.NoError(t, p.Sign(priv))
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var ok bool
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require.NotPanics(t, func() { ok = srv.validatePayload(p) })
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require.False(t, ok)
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})
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t.Run("wrong validator index", func(t *testing.T) {
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p.SetValidatorIndex(2)
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require.NoError(t, p.Sign(priv))
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require.False(t, srv.validatePayload(p))
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})
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t.Run("invalid sender", func(t *testing.T) {
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p.SetValidatorIndex(1)
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p.Sender = util.Uint160{}
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require.NoError(t, p.Sign(priv))
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require.False(t, srv.validatePayload(p))
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})
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t.Run("normal case", func(t *testing.T) {
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p.SetValidatorIndex(1)
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p.Sender = priv.GetScriptHash()
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require.NoError(t, p.Sign(priv))
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require.True(t, srv.validatePayload(p))
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})
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}
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func TestService_getTx(t *testing.T) {
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srv := newTestService(t)
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t.Run("transaction in mempool", func(t *testing.T) {
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tx := transaction.New([]byte{byte(opcode.PUSH1)}, 0)
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tx.Nonce = 1234
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tx.ValidUntilBlock = 1
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addSender(t, tx)
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signTx(t, srv.Chain, tx)
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h := tx.Hash()
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require.Equal(t, nil, srv.getTx(h))
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require.NoError(t, srv.Chain.PoolTx(tx))
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got := srv.getTx(h)
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require.NotNil(t, got)
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require.Equal(t, h, got.Hash())
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})
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t.Run("transaction in local cache", func(t *testing.T) {
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tx := transaction.New([]byte{byte(opcode.PUSH1)}, 0)
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tx.Nonce = 4321
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tx.ValidUntilBlock = 1
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h := tx.Hash()
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require.Equal(t, nil, srv.getTx(h))
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srv.txx.Add(tx)
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got := srv.getTx(h)
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require.NotNil(t, got)
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require.Equal(t, h, got.Hash())
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})
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}
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func TestService_PrepareRequest(t *testing.T) {
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srv := newTestServiceWithState(t, true)
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srv.dbft.Start()
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t.Cleanup(srv.dbft.Timer.Stop)
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priv, _ := getTestValidator(1)
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p := new(Payload)
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p.SetValidatorIndex(1)
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prevHash := srv.Chain.CurrentBlockHash()
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checkRequest := func(t *testing.T, expectedErr error, req *prepareRequest) {
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p.SetPayload(req)
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require.NoError(t, p.Sign(priv))
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err := srv.verifyRequest(p)
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if expectedErr == nil {
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require.NoError(t, err)
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return
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}
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require.True(t, errors.Is(err, expectedErr), "got: %v", err)
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}
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checkRequest(t, errInvalidVersion, &prepareRequest{version: 0xFF, prevHash: prevHash})
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checkRequest(t, errInvalidPrevHash, &prepareRequest{prevHash: random.Uint256()})
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checkRequest(t, errInvalidStateRoot, &prepareRequest{
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stateRootEnabled: true,
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prevHash: prevHash,
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})
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sr, err := srv.Chain.GetStateModule().GetStateRoot(srv.dbft.BlockIndex - 1)
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require.NoError(t, err)
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checkRequest(t, errInvalidTransactionsCount, &prepareRequest{stateRootEnabled: true,
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prevHash: prevHash,
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stateRoot: sr.Root,
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transactionHashes: make([]util.Uint256, srv.ProtocolConfiguration.MaxTransactionsPerBlock+1),
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})
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checkRequest(t, nil, &prepareRequest{
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stateRootEnabled: true,
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prevHash: prevHash,
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stateRoot: sr.Root,
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})
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}
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func TestService_OnPayload(t *testing.T) {
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srv := newTestService(t)
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// This test directly reads things from srv.messages that normally
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// is read by internal goroutine started with Start(). So let's
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// pretend we really did start already.
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srv.started.Store(true)
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priv, _ := getTestValidator(1)
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p := new(Payload)
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p.SetValidatorIndex(1)
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p.SetPayload(&prepareRequest{})
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p.encodeData()
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// sender is invalid
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srv.OnPayload(&p.Extensible)
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shouldNotReceive(t, srv.messages)
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p = new(Payload)
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p.SetValidatorIndex(1)
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p.Sender = priv.GetScriptHash()
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p.SetPayload(&prepareRequest{})
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require.NoError(t, p.Sign(priv))
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srv.OnPayload(&p.Extensible)
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shouldReceive(t, srv.messages)
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}
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func TestVerifyBlock(t *testing.T) {
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srv := newTestService(t)
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srv.lastTimestamp = 1
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t.Run("good empty", func(t *testing.T) {
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b := testchain.NewBlock(t, srv.Chain, 1, 0)
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require.True(t, srv.verifyBlock(&neoBlock{Block: *b}))
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})
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t.Run("good pooled tx", func(t *testing.T) {
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tx := transaction.New([]byte{byte(opcode.RET)}, 100000)
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tx.ValidUntilBlock = 1
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addSender(t, tx)
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signTx(t, srv.Chain, tx)
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require.NoError(t, srv.Chain.PoolTx(tx))
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b := testchain.NewBlock(t, srv.Chain, 1, 0, tx)
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require.True(t, srv.verifyBlock(&neoBlock{Block: *b}))
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})
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t.Run("good non-pooled tx", func(t *testing.T) {
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tx := transaction.New([]byte{byte(opcode.RET)}, 100000)
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tx.ValidUntilBlock = 1
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addSender(t, tx)
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signTx(t, srv.Chain, tx)
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b := testchain.NewBlock(t, srv.Chain, 1, 0, tx)
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require.True(t, srv.verifyBlock(&neoBlock{Block: *b}))
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})
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t.Run("good conflicting tx", func(t *testing.T) {
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tx1 := transaction.New([]byte{byte(opcode.RET)}, 100000)
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tx1.NetworkFee = 20_000_000 * native.GASFactor
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tx1.ValidUntilBlock = 1
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addSender(t, tx1)
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signTx(t, srv.Chain, tx1)
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tx2 := transaction.New([]byte{byte(opcode.RET)}, 100000)
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tx2.NetworkFee = 20_000_000 * native.GASFactor
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tx2.ValidUntilBlock = 1
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addSender(t, tx2)
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signTx(t, srv.Chain, tx2)
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require.NoError(t, srv.Chain.PoolTx(tx1))
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require.Error(t, srv.Chain.PoolTx(tx2))
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b := testchain.NewBlock(t, srv.Chain, 1, 0, tx2)
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require.True(t, srv.verifyBlock(&neoBlock{Block: *b}))
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})
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t.Run("bad old", func(t *testing.T) {
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b := testchain.NewBlock(t, srv.Chain, 1, 0)
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b.Index = srv.Chain.BlockHeight()
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require.False(t, srv.verifyBlock(&neoBlock{Block: *b}))
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})
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t.Run("bad big size", func(t *testing.T) {
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script := make([]byte, int(srv.ProtocolConfiguration.MaxBlockSize))
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script[0] = byte(opcode.RET)
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tx := transaction.New(script, 100000)
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tx.ValidUntilBlock = 1
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addSender(t, tx)
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signTx(t, srv.Chain, tx)
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b := testchain.NewBlock(t, srv.Chain, 1, 0, tx)
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require.False(t, srv.verifyBlock(&neoBlock{Block: *b}))
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})
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t.Run("bad timestamp", func(t *testing.T) {
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b := testchain.NewBlock(t, srv.Chain, 1, 0)
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b.Timestamp = srv.lastTimestamp - 1
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require.False(t, srv.verifyBlock(&neoBlock{Block: *b}))
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})
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t.Run("bad tx", func(t *testing.T) {
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tx := transaction.New([]byte{byte(opcode.RET)}, 100000)
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tx.ValidUntilBlock = 1
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addSender(t, tx)
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signTx(t, srv.Chain, tx)
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tx.Scripts[0].InvocationScript[16] = ^tx.Scripts[0].InvocationScript[16]
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b := testchain.NewBlock(t, srv.Chain, 1, 0, tx)
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require.False(t, srv.verifyBlock(&neoBlock{Block: *b}))
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})
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t.Run("bad big sys fee", func(t *testing.T) {
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txes := make([]*transaction.Transaction, 2)
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for i := range txes {
|
|
txes[i] = transaction.New([]byte{byte(opcode.RET)}, srv.ProtocolConfiguration.MaxBlockSystemFee/2+1)
|
|
txes[i].ValidUntilBlock = 1
|
|
addSender(t, txes[i])
|
|
signTx(t, srv.Chain, txes[i])
|
|
}
|
|
b := testchain.NewBlock(t, srv.Chain, 1, 0, txes...)
|
|
require.False(t, srv.verifyBlock(&neoBlock{Block: *b}))
|
|
})
|
|
}
|
|
|
|
func shouldReceive(t *testing.T, ch chan Payload) {
|
|
select {
|
|
case <-ch:
|
|
default:
|
|
require.Fail(t, "missing expected message")
|
|
}
|
|
}
|
|
|
|
func shouldNotReceive(t *testing.T, ch chan Payload) {
|
|
select {
|
|
case <-ch:
|
|
require.Fail(t, "unexpected message receive")
|
|
default:
|
|
}
|
|
}
|
|
|
|
func newTestServiceWithState(t *testing.T, stateRootInHeader bool) *service {
|
|
return newTestServiceWithChain(t, newTestChain(t, stateRootInHeader))
|
|
}
|
|
|
|
func newTestService(t *testing.T) *service {
|
|
return newTestServiceWithState(t, false)
|
|
}
|
|
|
|
func newTestServiceWithChain(t *testing.T, bc *core.Blockchain) *service {
|
|
srv, err := NewService(Config{
|
|
Logger: zaptest.NewLogger(t),
|
|
Broadcast: func(*npayload.Extensible) {},
|
|
Chain: bc,
|
|
ProtocolConfiguration: bc.GetConfig(),
|
|
RequestTx: func(...util.Uint256) {},
|
|
TimePerBlock: time.Duration(bc.GetConfig().SecondsPerBlock) * time.Second,
|
|
Wallet: &config.Wallet{
|
|
Path: "./testdata/wallet1.json",
|
|
Password: "one",
|
|
},
|
|
})
|
|
require.NoError(t, err)
|
|
|
|
return srv.(*service)
|
|
}
|
|
|
|
func getTestValidator(i int) (*privateKey, *publicKey) {
|
|
key := testchain.PrivateKey(i)
|
|
return &privateKey{PrivateKey: key}, &publicKey{PublicKey: key.PublicKey()}
|
|
}
|
|
|
|
func newSingleTestChain(t *testing.T) *core.Blockchain {
|
|
configPath := "../../config/protocol.unit_testnet.single.yml"
|
|
cfg, err := config.LoadFile(configPath)
|
|
require.NoError(t, err, "could not load config")
|
|
|
|
chain, err := core.NewBlockchain(storage.NewMemoryStore(), cfg.ProtocolConfiguration, zaptest.NewLogger(t))
|
|
require.NoError(t, err, "could not create chain")
|
|
|
|
go chain.Run()
|
|
t.Cleanup(chain.Close)
|
|
return chain
|
|
}
|
|
|
|
func newTestChain(t *testing.T, stateRootInHeader bool) *core.Blockchain {
|
|
unitTestNetCfg, err := config.Load("../../config", netmode.UnitTestNet)
|
|
require.NoError(t, err)
|
|
unitTestNetCfg.ProtocolConfiguration.StateRootInHeader = stateRootInHeader
|
|
|
|
chain, err := core.NewBlockchain(storage.NewMemoryStore(), unitTestNetCfg.ProtocolConfiguration, zaptest.NewLogger(t))
|
|
require.NoError(t, err)
|
|
|
|
go chain.Run()
|
|
t.Cleanup(chain.Close)
|
|
return chain
|
|
}
|
|
|
|
var neoOwner = testchain.MultisigScriptHash()
|
|
|
|
func addSender(t *testing.T, txs ...*transaction.Transaction) {
|
|
for _, tx := range txs {
|
|
tx.Signers = []transaction.Signer{
|
|
{
|
|
Account: neoOwner,
|
|
},
|
|
}
|
|
}
|
|
}
|
|
|
|
func signTx(t *testing.T, bc blockchainer.Blockchainer, txs ...*transaction.Transaction) {
|
|
validators := make([]*keys.PublicKey, 4)
|
|
privNetKeys := make([]*keys.PrivateKey, 4)
|
|
for i := 0; i < 4; i++ {
|
|
privNetKeys[i] = testchain.PrivateKey(i)
|
|
validators[i] = privNetKeys[i].PublicKey()
|
|
}
|
|
privNetKeys = privNetKeys[:3]
|
|
rawScript, err := smartcontract.CreateMultiSigRedeemScript(3, validators)
|
|
require.NoError(t, err)
|
|
for _, tx := range txs {
|
|
size := io.GetVarSize(tx)
|
|
netFee, sizeDelta := fee.Calculate(bc.GetPolicer().GetBaseExecFee(), rawScript)
|
|
tx.NetworkFee += +netFee
|
|
size += sizeDelta
|
|
tx.NetworkFee += int64(size) * bc.FeePerByte()
|
|
|
|
buf := io.NewBufBinWriter()
|
|
for _, key := range privNetKeys {
|
|
signature := key.SignHashable(uint32(testchain.Network()), tx)
|
|
emit.Bytes(buf.BinWriter, signature)
|
|
}
|
|
|
|
tx.Scripts = []transaction.Witness{{
|
|
InvocationScript: buf.Bytes(),
|
|
VerificationScript: rawScript,
|
|
}}
|
|
}
|
|
}
|