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396 lines
14 KiB
396 lines
14 KiB
package types
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import (
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"context"
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"encoding/hex"
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"math"
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mrand "math/rand"
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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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"github.com/tendermint/tendermint/crypto"
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"github.com/tendermint/tendermint/crypto/ed25519"
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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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tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
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"github.com/tendermint/tendermint/version"
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)
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var defaultVoteTime = time.Date(2019, 1, 1, 0, 0, 0, 0, time.UTC)
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func TestEvidenceList(t *testing.T) {
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ev := randomDuplicateVoteEvidence(t)
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evl := EvidenceList([]Evidence{ev})
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assert.NotNil(t, evl.Hash())
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assert.True(t, evl.Has(ev))
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assert.False(t, evl.Has(&DuplicateVoteEvidence{}))
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}
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func randomDuplicateVoteEvidence(t *testing.T) *DuplicateVoteEvidence {
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val := NewMockPV()
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blockID := makeBlockID([]byte("blockhash"), 1000, []byte("partshash"))
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blockID2 := makeBlockID([]byte("blockhash2"), 1000, []byte("partshash"))
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const chainID = "mychain"
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return &DuplicateVoteEvidence{
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VoteA: makeVote(t, val, chainID, 0, 10, 2, 1, blockID, defaultVoteTime),
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VoteB: makeVote(t, val, chainID, 0, 10, 2, 1, blockID2, defaultVoteTime.Add(1*time.Minute)),
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TotalVotingPower: 30,
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ValidatorPower: 10,
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Timestamp: defaultVoteTime,
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}
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}
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func TestDuplicateVoteEvidence(t *testing.T) {
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const height = int64(13)
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ev := NewMockDuplicateVoteEvidence(height, time.Now(), "mock-chain-id")
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assert.Equal(t, ev.Hash(), tmhash.Sum(ev.Bytes()))
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assert.NotNil(t, ev.String())
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assert.Equal(t, ev.Height(), height)
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}
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func TestDuplicateVoteEvidenceValidation(t *testing.T) {
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val := NewMockPV()
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blockID := makeBlockID(tmhash.Sum([]byte("blockhash")), math.MaxInt32, tmhash.Sum([]byte("partshash")))
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blockID2 := makeBlockID(tmhash.Sum([]byte("blockhash2")), math.MaxInt32, tmhash.Sum([]byte("partshash")))
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const chainID = "mychain"
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testCases := []struct {
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testName string
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malleateEvidence func(*DuplicateVoteEvidence)
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expectErr bool
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}{
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{"Good DuplicateVoteEvidence", func(ev *DuplicateVoteEvidence) {}, false},
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{"Nil vote A", func(ev *DuplicateVoteEvidence) { ev.VoteA = nil }, true},
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{"Nil vote B", func(ev *DuplicateVoteEvidence) { ev.VoteB = nil }, true},
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{"Nil votes", func(ev *DuplicateVoteEvidence) {
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ev.VoteA = nil
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ev.VoteB = nil
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}, true},
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{"Invalid vote type", func(ev *DuplicateVoteEvidence) {
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ev.VoteA = makeVote(t, val, chainID, math.MaxInt32, math.MaxInt64, math.MaxInt32, 0, blockID2, defaultVoteTime)
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}, true},
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{"Invalid vote order", func(ev *DuplicateVoteEvidence) {
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swap := ev.VoteA.Copy()
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ev.VoteA = ev.VoteB.Copy()
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ev.VoteB = swap
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}, true},
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}
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for _, tc := range testCases {
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tc := tc
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t.Run(tc.testName, func(t *testing.T) {
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vote1 := makeVote(t, val, chainID, math.MaxInt32, math.MaxInt64, math.MaxInt32, 0x02, blockID, defaultVoteTime)
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vote2 := makeVote(t, val, chainID, math.MaxInt32, math.MaxInt64, math.MaxInt32, 0x02, blockID2, defaultVoteTime)
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valSet := NewValidatorSet([]*Validator{val.ExtractIntoValidator(10)})
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ev, err := NewDuplicateVoteEvidence(vote1, vote2, defaultVoteTime, valSet)
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require.NoError(t, err)
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tc.malleateEvidence(ev)
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assert.Equal(t, tc.expectErr, ev.ValidateBasic() != nil, "Validate Basic had an unexpected result")
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})
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}
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}
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func TestLightClientAttackEvidenceBasic(t *testing.T) {
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height := int64(5)
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commonHeight := height - 1
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nValidators := 10
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voteSet, valSet, privVals := randVoteSet(height, 1, tmproto.PrecommitType, nValidators, 1)
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header := makeHeaderRandom()
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header.Height = height
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blockID := makeBlockID(tmhash.Sum([]byte("blockhash")), math.MaxInt32, tmhash.Sum([]byte("partshash")))
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commit, err := makeCommit(blockID, height, 1, voteSet, privVals, defaultVoteTime)
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require.NoError(t, err)
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lcae := &LightClientAttackEvidence{
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ConflictingBlock: &LightBlock{
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SignedHeader: &SignedHeader{
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Header: header,
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Commit: commit,
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},
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ValidatorSet: valSet,
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},
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CommonHeight: commonHeight,
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TotalVotingPower: valSet.TotalVotingPower(),
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Timestamp: header.Time,
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ByzantineValidators: valSet.Validators[:nValidators/2],
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}
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assert.NotNil(t, lcae.String())
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assert.NotNil(t, lcae.Hash())
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assert.Equal(t, lcae.Height(), commonHeight) // Height should be the common Height
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assert.NotNil(t, lcae.Bytes())
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// maleate evidence to test hash uniqueness
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testCases := []struct {
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testName string
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malleateEvidence func(*LightClientAttackEvidence)
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}{
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{"Different header", func(ev *LightClientAttackEvidence) { ev.ConflictingBlock.Header = makeHeaderRandom() }},
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{"Different common height", func(ev *LightClientAttackEvidence) {
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ev.CommonHeight = height + 1
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}},
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}
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for _, tc := range testCases {
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lcae := &LightClientAttackEvidence{
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ConflictingBlock: &LightBlock{
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SignedHeader: &SignedHeader{
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Header: header,
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Commit: commit,
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},
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ValidatorSet: valSet,
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},
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CommonHeight: commonHeight,
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TotalVotingPower: valSet.TotalVotingPower(),
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Timestamp: header.Time,
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ByzantineValidators: valSet.Validators[:nValidators/2],
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}
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hash := lcae.Hash()
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tc.malleateEvidence(lcae)
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assert.NotEqual(t, hash, lcae.Hash(), tc.testName)
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}
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}
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func TestLightClientAttackEvidenceValidation(t *testing.T) {
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height := int64(5)
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commonHeight := height - 1
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nValidators := 10
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voteSet, valSet, privVals := randVoteSet(height, 1, tmproto.PrecommitType, nValidators, 1)
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header := makeHeaderRandom()
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header.Height = height
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header.ValidatorsHash = valSet.Hash()
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blockID := makeBlockID(header.Hash(), math.MaxInt32, tmhash.Sum([]byte("partshash")))
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commit, err := makeCommit(blockID, height, 1, voteSet, privVals, time.Now())
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require.NoError(t, err)
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lcae := &LightClientAttackEvidence{
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ConflictingBlock: &LightBlock{
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SignedHeader: &SignedHeader{
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Header: header,
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Commit: commit,
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},
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ValidatorSet: valSet,
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},
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CommonHeight: commonHeight,
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TotalVotingPower: valSet.TotalVotingPower(),
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Timestamp: header.Time,
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ByzantineValidators: valSet.Validators[:nValidators/2],
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}
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assert.NoError(t, lcae.ValidateBasic())
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testCases := []struct {
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testName string
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malleateEvidence func(*LightClientAttackEvidence)
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expectErr bool
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}{
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{"Good LightClientAttackEvidence", func(ev *LightClientAttackEvidence) {}, false},
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{"Negative height", func(ev *LightClientAttackEvidence) { ev.CommonHeight = -10 }, true},
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{"Height is greater than divergent block", func(ev *LightClientAttackEvidence) {
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ev.CommonHeight = height + 1
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}, true},
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{"Height is equal to the divergent block", func(ev *LightClientAttackEvidence) {
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ev.CommonHeight = height
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}, false},
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{"Nil conflicting header", func(ev *LightClientAttackEvidence) { ev.ConflictingBlock.Header = nil }, true},
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{"Nil conflicting blocl", func(ev *LightClientAttackEvidence) { ev.ConflictingBlock = nil }, true},
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{"Nil validator set", func(ev *LightClientAttackEvidence) {
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ev.ConflictingBlock.ValidatorSet = &ValidatorSet{}
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}, true},
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{"Negative total voting power", func(ev *LightClientAttackEvidence) {
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ev.TotalVotingPower = -1
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}, true},
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}
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for _, tc := range testCases {
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tc := tc
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t.Run(tc.testName, func(t *testing.T) {
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lcae := &LightClientAttackEvidence{
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ConflictingBlock: &LightBlock{
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SignedHeader: &SignedHeader{
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Header: header,
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Commit: commit,
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},
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ValidatorSet: valSet,
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},
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CommonHeight: commonHeight,
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TotalVotingPower: valSet.TotalVotingPower(),
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Timestamp: header.Time,
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ByzantineValidators: valSet.Validators[:nValidators/2],
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}
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tc.malleateEvidence(lcae)
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if tc.expectErr {
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assert.Error(t, lcae.ValidateBasic(), tc.testName)
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} else {
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assert.NoError(t, lcae.ValidateBasic(), tc.testName)
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}
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})
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}
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}
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func TestMockEvidenceValidateBasic(t *testing.T) {
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goodEvidence := NewMockDuplicateVoteEvidence(int64(1), time.Now(), "mock-chain-id")
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assert.Nil(t, goodEvidence.ValidateBasic())
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}
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func makeVote(
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t *testing.T, val PrivValidator, chainID string, valIndex int32, height int64, round int32, step int, blockID BlockID,
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time time.Time) *Vote {
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pubKey, err := val.GetPubKey(context.Background())
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require.NoError(t, err)
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v := &Vote{
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ValidatorAddress: pubKey.Address(),
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ValidatorIndex: valIndex,
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Height: height,
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Round: round,
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Type: tmproto.SignedMsgType(step),
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BlockID: blockID,
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Timestamp: time,
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}
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vpb := v.ToProto()
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err = val.SignVote(context.Background(), chainID, vpb)
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require.NoError(t, err)
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v.Signature = vpb.Signature
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return v
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}
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func makeHeaderRandom() *Header {
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return &Header{
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Version: version.Consensus{Block: version.BlockProtocol, App: 1},
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ChainID: tmrand.Str(12),
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Height: int64(mrand.Uint32() + 1),
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Time: time.Now(),
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LastBlockID: makeBlockIDRandom(),
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LastCommitHash: crypto.CRandBytes(tmhash.Size),
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DataHash: crypto.CRandBytes(tmhash.Size),
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ValidatorsHash: crypto.CRandBytes(tmhash.Size),
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NextValidatorsHash: crypto.CRandBytes(tmhash.Size),
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ConsensusHash: crypto.CRandBytes(tmhash.Size),
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AppHash: crypto.CRandBytes(tmhash.Size),
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LastResultsHash: crypto.CRandBytes(tmhash.Size),
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EvidenceHash: crypto.CRandBytes(tmhash.Size),
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ProposerAddress: crypto.CRandBytes(crypto.AddressSize),
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}
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}
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func TestEvidenceProto(t *testing.T) {
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// -------- Votes --------
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val := NewMockPV()
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blockID := makeBlockID(tmhash.Sum([]byte("blockhash")), math.MaxInt32, tmhash.Sum([]byte("partshash")))
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blockID2 := makeBlockID(tmhash.Sum([]byte("blockhash2")), math.MaxInt32, tmhash.Sum([]byte("partshash")))
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const chainID = "mychain"
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v := makeVote(t, val, chainID, math.MaxInt32, math.MaxInt64, 1, 0x01, blockID, defaultVoteTime)
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v2 := makeVote(t, val, chainID, math.MaxInt32, math.MaxInt64, 2, 0x01, blockID2, defaultVoteTime)
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tests := []struct {
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testName string
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evidence Evidence
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toProtoErr bool
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fromProtoErr bool
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}{
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{"nil fail", nil, true, true},
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{"DuplicateVoteEvidence empty fail", &DuplicateVoteEvidence{}, false, true},
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{"DuplicateVoteEvidence nil voteB", &DuplicateVoteEvidence{VoteA: v, VoteB: nil}, false, true},
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{"DuplicateVoteEvidence nil voteA", &DuplicateVoteEvidence{VoteA: nil, VoteB: v}, false, true},
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{"DuplicateVoteEvidence success", &DuplicateVoteEvidence{VoteA: v2, VoteB: v}, false, false},
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}
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for _, tt := range tests {
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tt := tt
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t.Run(tt.testName, func(t *testing.T) {
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pb, err := EvidenceToProto(tt.evidence)
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if tt.toProtoErr {
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assert.Error(t, err, tt.testName)
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return
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}
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assert.NoError(t, err, tt.testName)
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evi, err := EvidenceFromProto(pb)
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if tt.fromProtoErr {
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assert.Error(t, err, tt.testName)
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return
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}
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require.Equal(t, tt.evidence, evi, tt.testName)
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})
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}
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}
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func TestEvidenceVectors(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// Votes for duplicateEvidence
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val := NewMockPV()
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val.PrivKey = ed25519.GenPrivKeyFromSecret([]byte("it's a secret")) // deterministic key
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blockID := makeBlockID(tmhash.Sum([]byte("blockhash")), math.MaxInt32, tmhash.Sum([]byte("partshash")))
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blockID2 := makeBlockID(tmhash.Sum([]byte("blockhash2")), math.MaxInt32, tmhash.Sum([]byte("partshash")))
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const chainID = "mychain"
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v := makeVote(t, val, chainID, math.MaxInt32, math.MaxInt64, 1, 0x01, blockID, defaultVoteTime)
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v2 := makeVote(t, val, chainID, math.MaxInt32, math.MaxInt64, 2, 0x01, blockID2, defaultVoteTime)
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// Data for LightClientAttackEvidence
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height := int64(5)
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commonHeight := height - 1
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nValidators := 10
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voteSet, valSet, privVals := deterministicVoteSet(ctx, height, 1, tmproto.PrecommitType, 1)
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header := &Header{
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Version: version.Consensus{Block: 1, App: 1},
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ChainID: chainID,
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Height: height,
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Time: time.Date(math.MaxInt64, 0, 0, 0, 0, 0, math.MaxInt64, time.UTC),
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LastBlockID: BlockID{},
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LastCommitHash: []byte("f2564c78071e26643ae9b3e2a19fa0dc10d4d9e873aa0be808660123f11a1e78"),
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DataHash: []byte("f2564c78071e26643ae9b3e2a19fa0dc10d4d9e873aa0be808660123f11a1e78"),
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ValidatorsHash: valSet.Hash(),
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NextValidatorsHash: []byte("f2564c78071e26643ae9b3e2a19fa0dc10d4d9e873aa0be808660123f11a1e78"),
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ConsensusHash: []byte("f2564c78071e26643ae9b3e2a19fa0dc10d4d9e873aa0be808660123f11a1e78"),
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AppHash: []byte("f2564c78071e26643ae9b3e2a19fa0dc10d4d9e873aa0be808660123f11a1e78"),
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LastResultsHash: []byte("f2564c78071e26643ae9b3e2a19fa0dc10d4d9e873aa0be808660123f11a1e78"),
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EvidenceHash: []byte("f2564c78071e26643ae9b3e2a19fa0dc10d4d9e873aa0be808660123f11a1e78"),
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ProposerAddress: []byte("2915b7b15f979e48ebc61774bb1d86ba3136b7eb"),
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}
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blockID3 := makeBlockID(header.Hash(), math.MaxInt32, tmhash.Sum([]byte("partshash")))
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commit, err := makeCommit(blockID3, height, 1, voteSet, privVals, defaultVoteTime)
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require.NoError(t, err)
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lcae := &LightClientAttackEvidence{
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ConflictingBlock: &LightBlock{
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SignedHeader: &SignedHeader{
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Header: header,
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Commit: commit,
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},
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ValidatorSet: valSet,
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},
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CommonHeight: commonHeight,
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TotalVotingPower: valSet.TotalVotingPower(),
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Timestamp: header.Time,
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ByzantineValidators: valSet.Validators[:nValidators/2],
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}
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// assert.NoError(t, lcae.ValidateBasic())
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testCases := []struct {
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testName string
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evList EvidenceList
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expBytes string
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}{
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{"duplicateVoteEvidence",
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EvidenceList{&DuplicateVoteEvidence{VoteA: v2, VoteB: v}},
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"a9ce28d13bb31001fc3e5b7927051baf98f86abdbd64377643a304164c826923",
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},
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{"LightClientAttackEvidence",
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EvidenceList{lcae},
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"2f8782163c3905b26e65823ababc977fe54e97b94e60c0360b1e4726b668bb8e",
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},
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{"LightClientAttackEvidence & DuplicateVoteEvidence",
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EvidenceList{&DuplicateVoteEvidence{VoteA: v2, VoteB: v}, lcae},
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"eedb4b47d6dbc9d43f53da8aa50bb826e8d9fc7d897da777c8af6a04aa74163e",
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},
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}
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for _, tc := range testCases {
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tc := tc
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hash := tc.evList.Hash()
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require.Equal(t, tc.expBytes, hex.EncodeToString(hash), tc.testName)
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}
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}
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