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package types
import (
"math"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/tendermint/tendermint/crypto"
"github.com/tendermint/tendermint/crypto/ed25519"
"github.com/tendermint/tendermint/crypto/tmhash"
tmrand "github.com/tendermint/tendermint/libs/rand"
)
type voteData struct {
vote1 *Vote
vote2 *Vote
valid bool
}
func makeVote(
t *testing.T, val PrivValidator, chainID string, valIndex int, height int64, round, step int, blockID BlockID,
) *Vote {
pubKey, err := val.GetPubKey()
require.NoError(t, err)
v := &Vote{
ValidatorAddress: pubKey.Address(),
ValidatorIndex: valIndex,
Height: height,
Round: round,
Type: SignedMsgType(step),
BlockID: blockID,
}
err = val.SignVote(chainID, v)
if err != nil {
panic(err)
}
return v
}
func TestEvidence(t *testing.T) {
val := NewMockPV()
val2 := NewMockPV()
blockID := makeBlockID([]byte("blockhash"), 1000, []byte("partshash"))
blockID2 := makeBlockID([]byte("blockhash2"), 1000, []byte("partshash"))
blockID3 := makeBlockID([]byte("blockhash"), 10000, []byte("partshash"))
blockID4 := makeBlockID([]byte("blockhash"), 10000, []byte("partshash2"))
const chainID = "mychain"
vote1 := makeVote(t, val, chainID, 0, 10, 2, 1, blockID)
badVote := makeVote(t, val, chainID, 0, 10, 2, 1, blockID)
err := val2.SignVote(chainID, badVote)
assert.NoError(t, err)
cases := []voteData{
{vote1, makeVote(t, val, chainID, 0, 10, 2, 1, blockID2), true}, // different block ids
{vote1, makeVote(t, val, chainID, 0, 10, 2, 1, blockID3), true},
{vote1, makeVote(t, val, chainID, 0, 10, 2, 1, blockID4), true},
{vote1, makeVote(t, val, chainID, 0, 10, 2, 1, blockID), false}, // wrong block id
{vote1, makeVote(t, val, "mychain2", 0, 10, 2, 1, blockID2), false}, // wrong chain id
{vote1, makeVote(t, val, chainID, 1, 10, 2, 1, blockID2), false}, // wrong val index
{vote1, makeVote(t, val, chainID, 0, 11, 2, 1, blockID2), false}, // wrong height
{vote1, makeVote(t, val, chainID, 0, 10, 3, 1, blockID2), false}, // wrong round
{vote1, makeVote(t, val, chainID, 0, 10, 2, 2, blockID2), false}, // wrong step
{vote1, makeVote(t, val2, chainID, 0, 10, 2, 1, blockID), false}, // wrong validator
{vote1, badVote, false}, // signed by wrong key
}
pubKey, err := val.GetPubKey()
require.NoError(t, err)
for _, c := range cases {
ev := &DuplicateVoteEvidence{
VoteA: c.vote1,
VoteB: c.vote2,
}
if c.valid {
assert.Nil(t, ev.Verify(chainID, pubKey), "evidence should be valid")
} else {
assert.NotNil(t, ev.Verify(chainID, pubKey), "evidence should be invalid")
}
}
}
func TestDuplicatedVoteEvidence(t *testing.T) {
ev := randomDuplicatedVoteEvidence(t)
assert.True(t, ev.Equal(ev))
assert.False(t, ev.Equal(&DuplicateVoteEvidence{}))
}
func TestEvidenceList(t *testing.T) {
ev := randomDuplicatedVoteEvidence(t)
evl := EvidenceList([]Evidence{ev})
assert.NotNil(t, evl.Hash())
assert.True(t, evl.Has(ev))
assert.False(t, evl.Has(&DuplicateVoteEvidence{}))
}
func TestMaxEvidenceBytes(t *testing.T) {
val := NewMockPV()
blockID := makeBlockID(tmhash.Sum([]byte("blockhash")), math.MaxInt64, tmhash.Sum([]byte("partshash")))
blockID2 := makeBlockID(tmhash.Sum([]byte("blockhash2")), math.MaxInt64, tmhash.Sum([]byte("partshash")))
const chainID = "mychain"
ev := &DuplicateVoteEvidence{
VoteA: makeVote(t, val, chainID, math.MaxInt64, math.MaxInt64, math.MaxInt64, math.MaxInt64, blockID),
VoteB: makeVote(t, val, chainID, math.MaxInt64, math.MaxInt64, math.MaxInt64, math.MaxInt64, blockID2),
}
//TODO: Add other types of evidence to test and set MaxEvidenceBytes accordingly
// evl := &LunaticValidatorEvidence{
// Header: makeHeaderRandom(),
// Vote: makeVote(t, val, chainID, math.MaxInt64, math.MaxInt64, math.MaxInt64, math.MaxInt64, blockID2),
// InvalidHeaderField: "",
// }
// evp := &PhantomValidatorEvidence{
// Header: makeHeaderRandom(),
// Vote: makeVote(t, val, chainID, math.MaxInt64, math.MaxInt64, math.MaxInt64, math.MaxInt64, blockID2),
// LastHeightValidatorWasInSet: math.MaxInt64,
// }
// signedHeader := SignedHeader{Header: makeHeaderRandom(), Commit: randCommit(time.Now())}
// evc := &ConflictingHeadersEvidence{
// H1: &signedHeader,
// H2: &signedHeader,
// }
testCases := []struct {
testName string
evidence Evidence
}{
{"DuplicateVote", ev},
// {"LunaticValidatorEvidence", evl},
// {"PhantomValidatorEvidence", evp},
// {"ConflictingHeadersEvidence", evc},
}
for _, tt := range testCases {
bz, err := cdc.MarshalBinaryLengthPrefixed(tt.evidence)
require.NoError(t, err, tt.testName)
assert.LessOrEqual(t, MaxEvidenceBytes, int64(len(bz)), tt.testName)
}
}
func randomDuplicatedVoteEvidence(t *testing.T) *DuplicateVoteEvidence {
val := NewMockPV()
blockID := makeBlockID([]byte("blockhash"), 1000, []byte("partshash"))
blockID2 := makeBlockID([]byte("blockhash2"), 1000, []byte("partshash"))
const chainID = "mychain"
return &DuplicateVoteEvidence{
VoteA: makeVote(t, val, chainID, 0, 10, 2, 1, blockID),
VoteB: makeVote(t, val, chainID, 0, 10, 2, 1, blockID2),
}
}
func TestDuplicateVoteEvidenceValidation(t *testing.T) {
val := NewMockPV()
blockID := makeBlockID(tmhash.Sum([]byte("blockhash")), math.MaxInt64, tmhash.Sum([]byte("partshash")))
blockID2 := makeBlockID(tmhash.Sum([]byte("blockhash2")), math.MaxInt64, tmhash.Sum([]byte("partshash")))
const chainID = "mychain"
testCases := []struct {
testName string
malleateEvidence func(*DuplicateVoteEvidence)
expectErr bool
}{
{"Good DuplicateVoteEvidence", func(ev *DuplicateVoteEvidence) {}, false},
{"Nil vote A", func(ev *DuplicateVoteEvidence) { ev.VoteA = nil }, true},
{"Nil vote B", func(ev *DuplicateVoteEvidence) { ev.VoteB = nil }, true},
{"Nil votes", func(ev *DuplicateVoteEvidence) {
ev.VoteA = nil
ev.VoteB = nil
}, true},
{"Invalid vote type", func(ev *DuplicateVoteEvidence) {
ev.VoteA = makeVote(t, val, chainID, math.MaxInt64, math.MaxInt64, math.MaxInt64, 0, blockID2)
}, true},
{"Invalid vote order", func(ev *DuplicateVoteEvidence) {
swap := ev.VoteA.Copy()
ev.VoteA = ev.VoteB.Copy()
ev.VoteB = swap
}, true},
}
for _, tc := range testCases {
tc := tc
t.Run(tc.testName, func(t *testing.T) {
vote1 := makeVote(t, val, chainID, math.MaxInt64, math.MaxInt64, math.MaxInt64, 0x02, blockID)
vote2 := makeVote(t, val, chainID, math.MaxInt64, math.MaxInt64, math.MaxInt64, 0x02, blockID2)
ev := NewDuplicateVoteEvidence(vote1, vote2)
tc.malleateEvidence(ev)
assert.Equal(t, tc.expectErr, ev.ValidateBasic() != nil, "Validate Basic had an unexpected result")
})
}
}
func TestMockGoodEvidenceValidateBasic(t *testing.T) {
goodEvidence := NewMockEvidence(int64(1), time.Now(), []byte{1})
assert.Nil(t, goodEvidence.ValidateBasic())
}
func TestMockBadEvidenceValidateBasic(t *testing.T) {
badEvidence := NewMockEvidence(int64(1), time.Now(), []byte{1})
assert.Nil(t, badEvidence.ValidateBasic())
}
func TestLunaticValidatorEvidence(t *testing.T) {
var (
blockID = makeBlockIDRandom()
header = makeHeaderRandom()
bTime, _ = time.Parse(time.RFC3339, "2006-01-02T15:04:05Z")
val = NewMockPV()
vote = makeVote(t, val, header.ChainID, 0, header.Height, 0, 2, blockID)
)
header.Time = bTime
ev := &LunaticValidatorEvidence{
Header: header,
Vote: vote,
InvalidHeaderField: "AppHash",
}
assert.Equal(t, header.Height, ev.Height())
assert.Equal(t, bTime, ev.Time())
assert.EqualValues(t, vote.ValidatorAddress, ev.Address())
assert.NotEmpty(t, ev.Hash())
assert.NotEmpty(t, ev.Bytes())
pubKey, err := val.GetPubKey()
require.NoError(t, err)
assert.NoError(t, ev.Verify(header.ChainID, pubKey))
assert.Error(t, ev.Verify("other", pubKey))
privKey2 := ed25519.GenPrivKey()
pubKey2 := privKey2.PubKey()
assert.Error(t, ev.Verify("other", pubKey2))
assert.True(t, ev.Equal(ev))
assert.NoError(t, ev.ValidateBasic())
assert.NotEmpty(t, ev.String())
}
func TestPhantomValidatorEvidence(t *testing.T) {
var (
blockID = makeBlockIDRandom()
header = makeHeaderRandom()
bTime, _ = time.Parse(time.RFC3339, "2006-01-02T15:04:05Z")
val = NewMockPV()
vote = makeVote(t, val, header.ChainID, 0, header.Height, 0, 2, blockID)
)
header.Time = bTime
ev := &PhantomValidatorEvidence{
Header: header,
Vote: vote,
LastHeightValidatorWasInSet: header.Height - 1,
}
assert.Equal(t, header.Height, ev.Height())
assert.Equal(t, bTime, ev.Time())
assert.EqualValues(t, vote.ValidatorAddress, ev.Address())
assert.NotEmpty(t, ev.Hash())
assert.NotEmpty(t, ev.Bytes())
pubKey, err := val.GetPubKey()
require.NoError(t, err)
assert.NoError(t, ev.Verify(header.ChainID, pubKey))
assert.Error(t, ev.Verify("other", pubKey))
privKey2 := ed25519.GenPrivKey()
pubKey2 := privKey2.PubKey()
assert.Error(t, ev.Verify("other", pubKey2))
assert.True(t, ev.Equal(ev))
assert.NoError(t, ev.ValidateBasic())
assert.NotEmpty(t, ev.String())
}
func TestConflictingHeadersEvidence(t *testing.T) {
const (
chainID = "TestConflictingHeadersEvidence"
height int64 = 37
)
var (
blockID = makeBlockIDRandom()
header1 = makeHeaderRandom()
header2 = makeHeaderRandom()
)
header1.Height = height
header1.LastBlockID = blockID
header1.ChainID = chainID
header2.Height = height
header2.LastBlockID = blockID
header2.ChainID = chainID
voteSet1, valSet, vals := randVoteSet(height, 1, PrecommitType, 10, 1)
voteSet2 := NewVoteSet(chainID, height, 1, PrecommitType, valSet)
commit1, err := MakeCommit(BlockID{
Hash: header1.Hash(),
PartsHeader: PartSetHeader{
Total: 100,
Hash: crypto.CRandBytes(tmhash.Size),
},
}, height, 1, voteSet1, vals, time.Now())
require.NoError(t, err)
commit2, err := MakeCommit(BlockID{
Hash: header2.Hash(),
PartsHeader: PartSetHeader{
Total: 100,
Hash: crypto.CRandBytes(tmhash.Size),
},
}, height, 1, voteSet2, vals, time.Now())
require.NoError(t, err)
ev := &ConflictingHeadersEvidence{
H1: &SignedHeader{
Header: header1,
Commit: commit1,
},
H2: &SignedHeader{
Header: header2,
Commit: commit2,
},
}
assert.Panics(t, func() {
ev.Address()
})
assert.Panics(t, func() {
pubKey, _ := vals[0].GetPubKey()
ev.Verify(chainID, pubKey)
})
assert.Equal(t, height, ev.Height())
// assert.Equal(t, bTime, ev.Time())
assert.NotEmpty(t, ev.Hash())
assert.NotEmpty(t, ev.Bytes())
assert.NoError(t, ev.VerifyComposite(header1, valSet))
assert.True(t, ev.Equal(ev))
assert.NoError(t, ev.ValidateBasic())
assert.NotEmpty(t, ev.String())
}
func TestPotentialAmnesiaEvidence(t *testing.T) {
const (
chainID = "TestPotentialAmnesiaEvidence"
height int64 = 37
)
var (
val = NewMockPV()
blockID = makeBlockID(tmhash.Sum([]byte("blockhash")), math.MaxInt64, tmhash.Sum([]byte("partshash")))
blockID2 = makeBlockID(tmhash.Sum([]byte("blockhash2")), math.MaxInt64, tmhash.Sum([]byte("partshash")))
vote1 = makeVote(t, val, chainID, 0, height, 0, 2, blockID)
vote2 = makeVote(t, val, chainID, 0, height, 1, 2, blockID2)
)
ev := &PotentialAmnesiaEvidence{
VoteA: vote2,
VoteB: vote1,
}
assert.Equal(t, height, ev.Height())
// assert.Equal(t, bTime, ev.Time())
assert.EqualValues(t, vote1.ValidatorAddress, ev.Address())
assert.NotEmpty(t, ev.Hash())
assert.NotEmpty(t, ev.Bytes())
pubKey, err := val.GetPubKey()
require.NoError(t, err)
assert.NoError(t, ev.Verify(chainID, pubKey))
assert.Error(t, ev.Verify("other", pubKey))
privKey2 := ed25519.GenPrivKey()
pubKey2 := privKey2.PubKey()
assert.Error(t, ev.Verify("other", pubKey2))
assert.True(t, ev.Equal(ev))
assert.NoError(t, ev.ValidateBasic())
assert.NotEmpty(t, ev.String())
}
func TestProofOfLockChange(t *testing.T) {
const (
chainID = "TestProofOfLockChange"
height int64 = 37
)
// 1: valid POLC - nothing should fail
voteSet, valSet, privValidators, blockID := buildVoteSet(height, 1, 3, 7, 0, PrecommitType)
pubKey, err := privValidators[7].GetPubKey()
require.NoError(t, err)
polc := makePOLCFromVoteSet(voteSet, pubKey, blockID)
assert.Equal(t, height, polc.Height())
assert.NoError(t, polc.ValidateBasic())
assert.True(t, polc.MajorityOfVotes(valSet))
assert.NotEmpty(t, polc.String())
// test validate basic on a set of bad cases
var badPOLCs []ProofOfLockChange
// 2: node has already voted in next round
pubKey, err = privValidators[0].GetPubKey()
require.NoError(t, err)
polc2 := makePOLCFromVoteSet(voteSet, pubKey, blockID)
badPOLCs = append(badPOLCs, polc2)
// 3: one vote was from a different round
voteSet, _, privValidators, blockID = buildVoteSet(height, 1, 3, 7, 0, PrecommitType)
pubKey, err = privValidators[7].GetPubKey()
require.NoError(t, err)
polc = makePOLCFromVoteSet(voteSet, pubKey, blockID)
badVote := makeVote(t, privValidators[8], chainID, 8, height, 2, 2, blockID)
polc.Votes = append(polc.Votes, *badVote)
badPOLCs = append(badPOLCs, polc)
// 4: one vote was from a different height
polc = makePOLCFromVoteSet(voteSet, pubKey, blockID)
badVote = makeVote(t, privValidators[8], chainID, 8, height+1, 1, 2, blockID)
polc.Votes = append(polc.Votes, *badVote)
badPOLCs = append(badPOLCs, polc)
// 5: one vote was from a different vote type
polc = makePOLCFromVoteSet(voteSet, pubKey, blockID)
badVote = makeVote(t, privValidators[8], chainID, 8, height, 1, 1, blockID)
polc.Votes = append(polc.Votes, *badVote)
badPOLCs = append(badPOLCs, polc)
// 5: one of the votes was for a nil block
polc = makePOLCFromVoteSet(voteSet, pubKey, blockID)
badVote = makeVote(t, privValidators[8], chainID, 8, height, 1, 2, BlockID{})
polc.Votes = append(polc.Votes, *badVote)
badPOLCs = append(badPOLCs, polc)
for idx, polc := range badPOLCs {
err := polc.ValidateBasic()
assert.Error(t, err)
if err == nil {
t.Errorf("test no. %d failed", idx+2)
}
}
}
func makeHeaderRandom() *Header {
return &Header{
ChainID: tmrand.Str(12),
Height: int64(tmrand.Uint16()) + 1,
Time: time.Now(),
LastBlockID: makeBlockIDRandom(),
LastCommitHash: crypto.CRandBytes(tmhash.Size),
DataHash: crypto.CRandBytes(tmhash.Size),
ValidatorsHash: crypto.CRandBytes(tmhash.Size),
NextValidatorsHash: crypto.CRandBytes(tmhash.Size),
ConsensusHash: crypto.CRandBytes(tmhash.Size),
AppHash: crypto.CRandBytes(tmhash.Size),
LastResultsHash: crypto.CRandBytes(tmhash.Size),
EvidenceHash: crypto.CRandBytes(tmhash.Size),
ProposerAddress: crypto.CRandBytes(crypto.AddressSize),
}
}