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190 lines
5.2 KiB
190 lines
5.2 KiB
package client_test
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import (
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"bytes"
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"context"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/tendermint/tendermint/crypto/ed25519"
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cryptoenc "github.com/tendermint/tendermint/crypto/encoding"
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"github.com/tendermint/tendermint/crypto/tmhash"
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tmrand "github.com/tendermint/tendermint/libs/rand"
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"github.com/tendermint/tendermint/privval"
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tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
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"github.com/tendermint/tendermint/rpc/client"
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"github.com/tendermint/tendermint/types"
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)
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// For some reason the empty node used in tests has a time of
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// 2018-10-10 08:20:13.695936996 +0000 UTC
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// this is because the test genesis time is set here
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// so in order to validate evidence we need evidence to be the same time
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var defaultTestTime = time.Date(2018, 10, 10, 8, 20, 13, 695936996, time.UTC)
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func newEvidence(t *testing.T, val *privval.FilePV,
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vote *types.Vote, vote2 *types.Vote,
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chainID string) *types.DuplicateVoteEvidence {
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t.Helper()
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var err error
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v := vote.ToProto()
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v2 := vote2.ToProto()
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vote.Signature, err = val.Key.PrivKey.Sign(types.VoteSignBytes(chainID, v))
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require.NoError(t, err)
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vote2.Signature, err = val.Key.PrivKey.Sign(types.VoteSignBytes(chainID, v2))
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require.NoError(t, err)
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validator := types.NewValidator(val.Key.PubKey, 10)
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valSet := types.NewValidatorSet([]*types.Validator{validator})
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ev, err := types.NewDuplicateVoteEvidence(vote, vote2, defaultTestTime, valSet)
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require.NoError(t, err)
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return ev
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}
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func makeEvidences(
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t *testing.T,
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val *privval.FilePV,
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chainID string,
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) (correct *types.DuplicateVoteEvidence, fakes []*types.DuplicateVoteEvidence) {
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vote := types.Vote{
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ValidatorAddress: val.Key.Address,
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ValidatorIndex: 0,
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Height: 1,
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Round: 0,
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Type: tmproto.PrevoteType,
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Timestamp: defaultTestTime,
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BlockID: types.BlockID{
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Hash: tmhash.Sum(tmrand.Bytes(tmhash.Size)),
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PartSetHeader: types.PartSetHeader{
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Total: 1000,
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Hash: tmhash.Sum([]byte("partset")),
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},
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},
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}
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vote2 := vote
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vote2.BlockID.Hash = tmhash.Sum([]byte("blockhash2"))
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correct = newEvidence(t, val, &vote, &vote2, chainID)
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fakes = make([]*types.DuplicateVoteEvidence, 0)
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// different address
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{
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v := vote2
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v.ValidatorAddress = []byte("some_address")
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fakes = append(fakes, newEvidence(t, val, &vote, &v, chainID))
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}
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// different height
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{
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v := vote2
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v.Height = vote.Height + 1
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fakes = append(fakes, newEvidence(t, val, &vote, &v, chainID))
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}
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// different round
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{
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v := vote2
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v.Round = vote.Round + 1
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fakes = append(fakes, newEvidence(t, val, &vote, &v, chainID))
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}
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// different type
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{
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v := vote2
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v.Type = tmproto.PrecommitType
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fakes = append(fakes, newEvidence(t, val, &vote, &v, chainID))
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}
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// exactly same vote
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{
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v := vote
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fakes = append(fakes, newEvidence(t, val, &vote, &v, chainID))
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}
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return correct, fakes
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}
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func TestBroadcastEvidence_DuplicateVoteEvidence(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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n, config := NodeSuite(t)
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chainID := config.ChainID()
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pv, err := privval.LoadOrGenFilePV(config.PrivValidator.KeyFile(), config.PrivValidator.StateFile())
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require.NoError(t, err)
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for i, c := range GetClients(t, n, config) {
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correct, fakes := makeEvidences(t, pv, chainID)
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t.Logf("client %d", i)
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// make sure that the node has produced enough blocks
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waitForBlock(ctx, t, c, 2)
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result, err := c.BroadcastEvidence(ctx, correct)
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require.NoError(t, err, "BroadcastEvidence(%s) failed", correct)
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assert.Equal(t, correct.Hash(), result.Hash, "expected result hash to match evidence hash")
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status, err := c.Status(ctx)
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require.NoError(t, err)
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err = client.WaitForHeight(c, status.SyncInfo.LatestBlockHeight+2, nil)
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require.NoError(t, err)
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ed25519pub := pv.Key.PubKey.(ed25519.PubKey)
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rawpub := ed25519pub.Bytes()
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result2, err := c.ABCIQuery(ctx, "/val", rawpub)
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require.NoError(t, err)
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qres := result2.Response
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require.True(t, qres.IsOK())
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var v abci.ValidatorUpdate
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err = abci.ReadMessage(bytes.NewReader(qres.Value), &v)
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require.NoError(t, err, "Error reading query result, value %v", qres.Value)
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pk, err := cryptoenc.PubKeyFromProto(v.PubKey)
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require.NoError(t, err)
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require.EqualValues(t, rawpub, pk, "Stored PubKey not equal with expected, value %v", string(qres.Value))
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require.Equal(t, int64(9), v.Power, "Stored Power not equal with expected, value %v", string(qres.Value))
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for _, fake := range fakes {
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_, err := c.BroadcastEvidence(ctx, fake)
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require.Error(t, err, "BroadcastEvidence(%s) succeeded, but the evidence was fake", fake)
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}
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}
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}
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func TestBroadcastEmptyEvidence(t *testing.T) {
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n, conf := NodeSuite(t)
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for _, c := range GetClients(t, n, conf) {
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_, err := c.BroadcastEvidence(context.Background(), nil)
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assert.Error(t, err)
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}
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}
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func waitForBlock(ctx context.Context, t *testing.T, c client.Client, height int64) {
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timer := time.NewTimer(0 * time.Millisecond)
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defer timer.Stop()
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for {
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select {
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case <-ctx.Done():
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return
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case <-timer.C:
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status, err := c.Status(ctx)
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require.NoError(t, err)
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if status.SyncInfo.LatestBlockHeight >= height {
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return
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}
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timer.Reset(200 * time.Millisecond)
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}
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}
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}
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