352 lines
10 KiB
Go
352 lines
10 KiB
Go
package consensus
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import (
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"encoding/hex"
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gio "io"
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"math/rand"
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"testing"
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"github.com/nspcc-dev/dbft/payload"
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"github.com/nspcc-dev/neo-go/internal/random"
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"github.com/nspcc-dev/neo-go/internal/testserdes"
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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/transaction"
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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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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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var messageTypes = []messageType{
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changeViewType,
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prepareRequestType,
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prepareResponseType,
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commitType,
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recoveryRequestType,
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recoveryMessageType,
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}
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func TestConsensusPayload_Setters(t *testing.T) {
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var p Payload
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p.message = &message{}
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p.SetVersion(1)
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assert.EqualValues(t, 1, p.Version())
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p.SetPrevHash(util.Uint256{1, 2, 3})
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assert.Equal(t, util.Uint256{1, 2, 3}, p.PrevHash())
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p.SetValidatorIndex(4)
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assert.EqualValues(t, 4, p.ValidatorIndex())
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p.SetHeight(11)
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assert.EqualValues(t, 11, p.Height())
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p.SetViewNumber(2)
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assert.EqualValues(t, 2, p.ViewNumber())
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p.SetType(payload.PrepareRequestType)
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assert.Equal(t, payload.PrepareRequestType, p.Type())
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pl := randomMessage(t, prepareRequestType)
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p.SetPayload(pl)
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require.Equal(t, pl, p.Payload())
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require.Equal(t, pl, p.GetPrepareRequest())
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pl = randomMessage(t, prepareResponseType)
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p.SetPayload(pl)
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require.Equal(t, pl, p.GetPrepareResponse())
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pl = randomMessage(t, commitType)
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p.SetPayload(pl)
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require.Equal(t, pl, p.GetCommit())
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pl = randomMessage(t, changeViewType)
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p.SetPayload(pl)
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require.Equal(t, pl, p.GetChangeView())
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pl = randomMessage(t, recoveryRequestType)
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p.SetPayload(pl)
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require.Equal(t, pl, p.GetRecoveryRequest())
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pl = randomMessage(t, recoveryMessageType)
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p.SetPayload(pl)
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require.Equal(t, pl, p.GetRecoveryMessage())
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}
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func TestConsensusPayload_Verify(t *testing.T) {
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// signed payload from mixed privnet (Go + 3C# nodes)
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dataHex := "000000004c02d52305a6a8981bd1598f0c3076d6de15a44a60ca692e189cd8a7249f175c0800000003222100f24b9147a21e09562c68abdec56d3c5fc09936592933aea5692800b75edbab2301420c40b2b8080ab02b703bc4e64407a6f31bb7ae4c9b1b1c8477668afa752eba6148e03b3ffc7e06285c09bdce4582188466209f876c38f9921a88b545393543ab201a290c2103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee6990b4195440d78"
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data, err := hex.DecodeString(dataHex)
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require.NoError(t, err)
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h, err := util.Uint160DecodeStringLE("a8826043c40abacfac1d9acc6b92a4458308ca18")
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require.NoError(t, err)
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p := NewPayload(netmode.PrivNet, false)
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require.NoError(t, testserdes.DecodeBinary(data, p))
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require.NoError(t, p.decodeData())
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bc := newTestChain(t, false)
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defer bc.Close()
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require.NoError(t, bc.VerifyWitness(h, p, &p.Witness, payloadGasLimit))
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}
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func TestConsensusPayload_Serializable(t *testing.T) {
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for _, mt := range messageTypes {
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p := randomPayload(t, mt)
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actual := new(Payload)
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data, err := testserdes.EncodeBinary(p)
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require.NoError(t, err)
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require.NoError(t, testserdes.DecodeBinary(data, actual))
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// message is nil after decoding as we didn't yet call decodeData
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require.Nil(t, actual.message)
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actual.message = new(message)
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// message should now be decoded from actual.data byte array
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actual.message = new(message)
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assert.NoError(t, actual.decodeData())
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assert.NotNil(t, actual.MarshalUnsigned())
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require.Equal(t, p, actual)
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data = p.MarshalUnsigned()
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pu := NewPayload(netmode.Magic(rand.Uint32()), false)
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require.NoError(t, pu.UnmarshalUnsigned(data))
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assert.NoError(t, pu.decodeData())
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_ = pu.MarshalUnsigned()
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p.Witness = transaction.Witness{}
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require.Equal(t, p, pu)
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}
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}
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func TestConsensusPayload_DecodeBinaryInvalid(t *testing.T) {
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// PrepareResponse ConsensusPayload consists of:
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// 41-byte common prefix
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// 1-byte varint length of the payload (34),
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// - 1-byte view number
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// - 1-byte message type (PrepareResponse)
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// - 32-byte preparation hash
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// 1-byte delimiter (1)
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// 2-byte for empty invocation and verification scripts
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const (
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lenIndex = 41
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typeIndex = lenIndex + 1
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delimeterIndex = typeIndex + 34
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)
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buf := make([]byte, delimeterIndex+1+2)
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expected := &Payload{
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message: &message{
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Type: prepareResponseType,
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payload: &prepareResponse{},
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},
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Witness: transaction.Witness{
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InvocationScript: []byte{},
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VerificationScript: []byte{},
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},
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}
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// fill `data` for next check
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_ = expected.Hash()
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// valid payload
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buf[delimeterIndex] = 1
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buf[lenIndex] = 34
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buf[typeIndex] = byte(prepareResponseType)
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p := &Payload{message: new(message)}
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require.NoError(t, testserdes.DecodeBinary(buf, p))
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// decode `data` into `message`
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_ = p.Hash()
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assert.NoError(t, p.decodeData())
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require.Equal(t, expected, p)
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// invalid type
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buf[typeIndex] = 0xFF
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actual := &Payload{message: new(message)}
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require.NoError(t, testserdes.DecodeBinary(buf, actual))
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require.Error(t, actual.decodeData())
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// invalid format
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buf[delimeterIndex] = 0
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buf[typeIndex] = byte(prepareResponseType)
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require.Error(t, testserdes.DecodeBinary(buf, new(Payload)))
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// invalid message length
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buf[delimeterIndex] = 1
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buf[lenIndex] = 0xFF
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buf[typeIndex] = byte(prepareResponseType)
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require.Error(t, testserdes.DecodeBinary(buf, new(Payload)))
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}
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func TestCommit_Serializable(t *testing.T) {
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c := randomMessage(t, commitType)
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testserdes.EncodeDecodeBinary(t, c, new(commit))
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}
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func TestPrepareResponse_Serializable(t *testing.T) {
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resp := randomMessage(t, prepareResponseType)
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testserdes.EncodeDecodeBinary(t, resp, new(prepareResponse))
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}
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func TestPrepareRequest_Serializable(t *testing.T) {
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req := randomMessage(t, prepareRequestType)
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testserdes.EncodeDecodeBinary(t, req, new(prepareRequest))
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}
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func TestRecoveryRequest_Serializable(t *testing.T) {
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req := randomMessage(t, recoveryRequestType)
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testserdes.EncodeDecodeBinary(t, req, new(recoveryRequest))
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}
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func TestRecoveryMessage_Serializable(t *testing.T) {
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msg := randomMessage(t, recoveryMessageType)
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testserdes.EncodeDecodeBinary(t, msg, new(recoveryMessage))
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}
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func randomPayload(t *testing.T, mt messageType) *Payload {
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p := &Payload{
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message: &message{
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Type: mt,
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ViewNumber: byte(rand.Uint32()),
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payload: randomMessage(t, mt),
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},
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version: 1,
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validatorIndex: 13,
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height: rand.Uint32(),
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prevHash: random.Uint256(),
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Witness: transaction.Witness{
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InvocationScript: random.Bytes(3),
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VerificationScript: []byte{byte(opcode.PUSH0)},
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},
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}
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if mt == changeViewType {
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p.payload.(*changeView).newViewNumber = p.ViewNumber() + 1
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}
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return p
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}
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func randomMessage(t *testing.T, mt messageType) io.Serializable {
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switch mt {
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case changeViewType:
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return &changeView{
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timestamp: rand.Uint64(),
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}
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case prepareRequestType:
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return randomPrepareRequest(t)
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case prepareResponseType:
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return &prepareResponse{preparationHash: random.Uint256()}
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case commitType:
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var c commit
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random.Fill(c.signature[:])
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return &c
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case recoveryRequestType:
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return &recoveryRequest{timestamp: rand.Uint64()}
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case recoveryMessageType:
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return randomRecoveryMessage(t)
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default:
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require.Fail(t, "invalid type")
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return nil
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}
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}
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func randomPrepareRequest(t *testing.T) *prepareRequest {
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const txCount = 3
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req := &prepareRequest{
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timestamp: rand.Uint64(),
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nonce: rand.Uint64(),
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transactionHashes: make([]util.Uint256, txCount),
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}
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for i := 0; i < txCount; i++ {
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req.transactionHashes[i] = random.Uint256()
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}
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return req
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}
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func randomRecoveryMessage(t *testing.T) *recoveryMessage {
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result := randomMessage(t, prepareRequestType)
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require.IsType(t, (*prepareRequest)(nil), result)
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prepReq := result.(*prepareRequest)
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return &recoveryMessage{
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preparationPayloads: []*preparationCompact{
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{
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ValidatorIndex: 1,
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InvocationScript: random.Bytes(10),
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},
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},
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commitPayloads: []*commitCompact{
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{
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ViewNumber: 0,
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ValidatorIndex: 1,
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Signature: [64]byte{1, 2, 3},
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InvocationScript: random.Bytes(20),
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},
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{
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ViewNumber: 0,
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ValidatorIndex: 2,
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Signature: [64]byte{11, 3, 4, 98},
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InvocationScript: random.Bytes(10),
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},
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},
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changeViewPayloads: []*changeViewCompact{
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{
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Timestamp: rand.Uint64(),
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ValidatorIndex: 3,
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OriginalViewNumber: 3,
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InvocationScript: random.Bytes(4),
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},
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},
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prepareRequest: &message{
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Type: prepareRequestType,
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payload: prepReq,
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},
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}
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}
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func TestPayload_Sign(t *testing.T) {
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key, err := keys.NewPrivateKey()
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require.NoError(t, err)
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priv := &privateKey{key}
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p := randomPayload(t, prepareRequestType)
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h := priv.PublicKey().GetScriptHash()
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bc := newTestChain(t, false)
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defer bc.Close()
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require.Error(t, bc.VerifyWitness(h, p, &p.Witness, payloadGasLimit))
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require.NoError(t, p.Sign(priv))
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require.NoError(t, bc.VerifyWitness(h, p, &p.Witness, payloadGasLimit))
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}
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func TestMessageType_String(t *testing.T) {
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require.Equal(t, "ChangeView", changeViewType.String())
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require.Equal(t, "PrepareRequest", prepareRequestType.String())
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require.Equal(t, "PrepareResponse", prepareResponseType.String())
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require.Equal(t, "Commit", commitType.String())
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require.Equal(t, "RecoveryMessage", recoveryMessageType.String())
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require.Equal(t, "RecoveryRequest", recoveryRequestType.String())
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require.Equal(t, "UNKNOWN(0xff)", messageType(0xff).String())
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}
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func TestPayload_DecodeFromPrivnet(t *testing.T) {
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hexDump := "000000004c02d52305a6a8981bd1598f0c3076d6de15a44a60ca692e189cd8a7249f175c08000000004230000368c5c5401d40eef6b8a9899d2041d29fd2e6300980fdcaa6660c10b85965f57852193cdb6f0d1e9f91dc510dff6df3a004b569fe2ad456d07007f6ccd55b1d01420c40e760250b821a4dcfc4b8727ecc409a758ab4bd3b288557fd3c3d76e083fe7c625b4ed25e763ad96c4eb0abc322600d82651fd32f8866fca1403fa04d3acc4675290c2102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e0b4195440d78"
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data, err := hex.DecodeString(hexDump)
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require.NoError(t, err)
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buf := io.NewBinReaderFromBuf(data)
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p := NewPayload(netmode.PrivNet, false)
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p.DecodeBinary(buf)
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require.NoError(t, buf.Err)
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require.NoError(t, p.decodeData())
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require.Equal(t, payload.CommitType, p.Type())
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require.Equal(t, uint32(8), p.Height())
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buf.ReadB()
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require.Equal(t, gio.EOF, buf.Err)
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}
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