neoneo-go/pkg/core/stateroot_test.go

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package core
import (
"errors"
"io/ioutil"
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"os"
"path"
"sort"
"testing"
"time"
"github.com/nspcc-dev/neo-go/internal/testserdes"
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"github.com/nspcc-dev/neo-go/pkg/config"
"github.com/nspcc-dev/neo-go/pkg/config/netmode"
"github.com/nspcc-dev/neo-go/pkg/core/native/noderoles"
"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/crypto/hash"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/network/payload"
"github.com/nspcc-dev/neo-go/pkg/services/stateroot"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/emit"
"github.com/nspcc-dev/neo-go/pkg/wallet"
"github.com/stretchr/testify/require"
"go.uber.org/atomic"
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"go.uber.org/zap/zaptest"
)
func testSignStateRoot(t *testing.T, r *state.MPTRoot, pubs keys.PublicKeys, accs ...*wallet.Account) []byte {
n := smartcontract.GetMajorityHonestNodeCount(len(accs))
w := io.NewBufBinWriter()
for i := 0; i < n; i++ {
sig := accs[i].PrivateKey().SignHashable(uint32(netmode.UnitTestNet), r)
emit.Bytes(w.BinWriter, sig)
}
require.NoError(t, w.Err)
script, err := smartcontract.CreateMajorityMultiSigRedeemScript(pubs.Copy())
require.NoError(t, err)
r.Witness = []transaction.Witness{{
VerificationScript: script,
InvocationScript: w.Bytes(),
}}
data, err := testserdes.EncodeBinary(stateroot.NewMessage(stateroot.RootT, r))
require.NoError(t, err)
return data
}
func newMajorityMultisigWithGAS(t *testing.T, n int) (util.Uint160, keys.PublicKeys, []*wallet.Account) {
accs := make([]*wallet.Account, n)
for i := range accs {
acc, err := wallet.NewAccount()
require.NoError(t, err)
accs[i] = acc
}
sort.Slice(accs, func(i, j int) bool {
pi := accs[i].PrivateKey().PublicKey()
pj := accs[j].PrivateKey().PublicKey()
return pi.Cmp(pj) == -1
})
pubs := make(keys.PublicKeys, n)
for i := range pubs {
pubs[i] = accs[i].PrivateKey().PublicKey()
}
script, err := smartcontract.CreateMajorityMultiSigRedeemScript(pubs)
require.NoError(t, err)
return hash.Hash160(script), pubs, accs
}
func TestStateRoot(t *testing.T) {
bc := newTestChain(t)
h, pubs, accs := newMajorityMultisigWithGAS(t, 2)
bc.setNodesByRole(t, true, noderoles.StateValidator, pubs)
updateIndex := bc.BlockHeight()
transferTokenFromMultisigAccount(t, bc, h, bc.contracts.GAS.Hash, 1_0000_0000)
tmpDir, err := ioutil.TempDir("", "neogo.test.stateroot")
require.NoError(t, err)
t.Cleanup(func() {
os.RemoveAll(tmpDir)
})
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w := createAndWriteWallet(t, accs[0], path.Join(tmpDir, "w"), "pass")
cfg := createStateRootConfig(w.Path(), "pass")
srv, err := stateroot.New(cfg, zaptest.NewLogger(t), bc, nil)
require.NoError(t, err)
require.EqualValues(t, 0, srv.CurrentValidatedHeight())
r, err := srv.GetStateRoot(bc.BlockHeight())
require.NoError(t, err)
require.Equal(t, r.Root, srv.CurrentLocalStateRoot())
t.Run("invalid message", func(t *testing.T) {
require.Error(t, srv.OnPayload(&payload.Extensible{Data: []byte{42}}))
require.EqualValues(t, 0, srv.CurrentValidatedHeight())
})
t.Run("drop zero index", func(t *testing.T) {
r, err := srv.GetStateRoot(0)
require.NoError(t, err)
data, err := testserdes.EncodeBinary(stateroot.NewMessage(stateroot.RootT, r))
require.NoError(t, err)
require.NoError(t, srv.OnPayload(&payload.Extensible{Data: data}))
require.EqualValues(t, 0, srv.CurrentValidatedHeight())
})
t.Run("invalid height", func(t *testing.T) {
r, err := srv.GetStateRoot(1)
require.NoError(t, err)
r.Index = 10
data := testSignStateRoot(t, r, pubs, accs...)
require.Error(t, srv.OnPayload(&payload.Extensible{Data: data}))
require.EqualValues(t, 0, srv.CurrentValidatedHeight())
})
t.Run("invalid signer", func(t *testing.T) {
accInv, err := wallet.NewAccount()
require.NoError(t, err)
pubs := keys.PublicKeys{accInv.PrivateKey().PublicKey()}
require.NoError(t, accInv.ConvertMultisig(1, pubs))
transferTokenFromMultisigAccount(t, bc, accInv.Contract.ScriptHash(), bc.contracts.GAS.Hash, 1_0000_0000)
r, err := srv.GetStateRoot(1)
require.NoError(t, err)
data := testSignStateRoot(t, r, pubs, accInv)
err = srv.OnPayload(&payload.Extensible{Data: data})
require.True(t, errors.Is(err, ErrWitnessHashMismatch), "got: %v", err)
require.EqualValues(t, 0, srv.CurrentValidatedHeight())
})
r, err = srv.GetStateRoot(updateIndex + 1)
require.NoError(t, err)
data := testSignStateRoot(t, r, pubs, accs...)
require.NoError(t, srv.OnPayload(&payload.Extensible{Data: data}))
require.EqualValues(t, 2, srv.CurrentValidatedHeight())
r, err = srv.GetStateRoot(updateIndex + 1)
require.NoError(t, err)
require.NotEqual(t, 0, len(r.Witness))
require.Equal(t, h, r.Witness[0].ScriptHash())
}
func TestStateRootInitNonZeroHeight(t *testing.T) {
st := memoryStore{storage.NewMemoryStore()}
h, pubs, accs := newMajorityMultisigWithGAS(t, 2)
var root util.Uint256
t.Run("init", func(t *testing.T) { // this is in a separate test to do proper cleanup
bc := newTestChainWithCustomCfgAndStore(t, st, nil)
bc.setNodesByRole(t, true, noderoles.StateValidator, pubs)
transferTokenFromMultisigAccount(t, bc, h, bc.contracts.GAS.Hash, 1_0000_0000)
_, err := persistBlock(bc)
require.NoError(t, err)
tmpDir, err := ioutil.TempDir("", "neogo.initsnz")
require.NoError(t, err)
t.Cleanup(func() {
os.RemoveAll(tmpDir)
})
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w := createAndWriteWallet(t, accs[0], path.Join(tmpDir, "w"), "pass")
cfg := createStateRootConfig(w.Path(), "pass")
srv, err := stateroot.New(cfg, zaptest.NewLogger(t), bc, nil)
require.NoError(t, err)
r, err := srv.GetStateRoot(2)
require.NoError(t, err)
data := testSignStateRoot(t, r, pubs, accs...)
require.NoError(t, srv.OnPayload(&payload.Extensible{Data: data}))
require.EqualValues(t, 2, srv.CurrentValidatedHeight())
root = srv.CurrentLocalStateRoot()
})
bc2 := newTestChainWithCustomCfgAndStore(t, st, nil)
srv := bc2.GetStateModule()
require.EqualValues(t, 2, srv.CurrentValidatedHeight())
require.Equal(t, root, srv.CurrentLocalStateRoot())
}
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func createAndWriteWallet(t *testing.T, acc *wallet.Account, path, password string) *wallet.Wallet {
w, err := wallet.NewWallet(path)
require.NoError(t, err)
require.NoError(t, acc.Encrypt(password, w.Scrypt))
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w.AddAccount(acc)
require.NoError(t, w.Save())
w.Close()
return w
}
func createStateRootConfig(walletPath, password string) config.StateRoot {
return config.StateRoot{
Enabled: true,
UnlockWallet: config.Wallet{
Path: walletPath,
Password: password,
},
}
}
func TestStateRootFull(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "neogo.stateroot4")
require.NoError(t, err)
t.Cleanup(func() {
os.RemoveAll(tmpDir)
})
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bc := newTestChain(t)
h, pubs, accs := newMajorityMultisigWithGAS(t, 2)
w := createAndWriteWallet(t, accs[1], path.Join(tmpDir, "wallet2"), "two")
cfg := createStateRootConfig(w.Path(), "two")
var lastValidated atomic.Value
var lastHeight atomic.Uint32
srv, err := stateroot.New(cfg, zaptest.NewLogger(t), bc, func(ep *payload.Extensible) {
lastHeight.Store(ep.ValidBlockStart)
lastValidated.Store(ep)
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})
require.NoError(t, err)
srv.Run()
t.Cleanup(srv.Shutdown)
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bc.setNodesByRole(t, true, noderoles.StateValidator, pubs)
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transferTokenFromMultisigAccount(t, bc, h, bc.contracts.GAS.Hash, 1_0000_0000)
require.Eventually(t, func() bool { return lastHeight.Load() == 2 }, time.Second, time.Millisecond)
checkVoteBroadcasted(t, bc, lastValidated.Load().(*payload.Extensible), 2, 1)
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_, err = persistBlock(bc)
require.NoError(t, err)
require.Eventually(t, func() bool { return lastHeight.Load() == 3 }, time.Second, time.Millisecond)
checkVoteBroadcasted(t, bc, lastValidated.Load().(*payload.Extensible), 3, 1)
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r, err := srv.GetStateRoot(2)
require.NoError(t, err)
require.NoError(t, srv.AddSignature(2, 0, accs[0].PrivateKey().SignHashable(uint32(netmode.UnitTestNet), r)))
require.NotNil(t, lastValidated.Load().(*payload.Extensible))
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msg := new(stateroot.Message)
require.NoError(t, testserdes.DecodeBinary(lastValidated.Load().(*payload.Extensible).Data, msg))
require.NotEqual(t, stateroot.RootT, msg.Type) // not a sender for this root
r, err = srv.GetStateRoot(3)
require.NoError(t, err)
require.Error(t, srv.AddSignature(2, 0, accs[0].PrivateKey().SignHashable(uint32(netmode.UnitTestNet), r)))
require.NoError(t, srv.AddSignature(3, 0, accs[0].PrivateKey().SignHashable(uint32(netmode.UnitTestNet), r)))
require.NotNil(t, lastValidated.Load().(*payload.Extensible))
require.NoError(t, testserdes.DecodeBinary(lastValidated.Load().(*payload.Extensible).Data, msg))
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require.Equal(t, stateroot.RootT, msg.Type)
actual := msg.Payload.(*state.MPTRoot)
require.Equal(t, r.Index, actual.Index)
require.Equal(t, r.Version, actual.Version)
require.Equal(t, r.Root, actual.Root)
}
func checkVoteBroadcasted(t *testing.T, bc *Blockchain, p *payload.Extensible,
height uint32, valIndex byte) {
require.NotNil(t, p)
m := new(stateroot.Message)
require.NoError(t, testserdes.DecodeBinary(p.Data, m))
require.Equal(t, stateroot.VoteT, m.Type)
vote := m.Payload.(*stateroot.Vote)
srv := bc.GetStateModule()
r, err := srv.GetStateRoot(bc.BlockHeight())
require.NoError(t, err)
require.Equal(t, height, vote.Height)
require.Equal(t, int32(valIndex), vote.ValidatorIndex)
pubs, _, err := bc.contracts.Designate.GetDesignatedByRole(bc.dao, noderoles.StateValidator, bc.BlockHeight())
require.NoError(t, err)
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require.True(t, len(pubs) > int(valIndex))
require.True(t, pubs[valIndex].VerifyHashable(vote.Signature, uint32(netmode.UnitTestNet), r))
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}