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262 lines
7.8 KiB
262 lines
7.8 KiB
package types
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import (
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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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tmmath "github.com/tendermint/tendermint/libs/math"
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tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
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)
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// Check VerifyCommit, VerifyCommitLight and VerifyCommitLightTrusting basic
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// verification.
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func TestValidatorSet_VerifyCommit_All(t *testing.T) {
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var (
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round = int32(0)
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height = int64(100)
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blockID = makeBlockID([]byte("blockhash"), 1000, []byte("partshash"))
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chainID = "Lalande21185"
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trustLevel = tmmath.Fraction{Numerator: 2, Denominator: 3}
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)
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testCases := []struct {
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description string
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// vote chainID
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chainID string
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// vote blockID
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blockID BlockID
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valSize int
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// height of the commit
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height int64
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// votes
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blockVotes int
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nilVotes int
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absentVotes int
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expErr bool
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}{
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{"good (batch verification)", chainID, blockID, 3, height, 3, 0, 0, false},
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{"good (single verification)", chainID, blockID, 1, height, 1, 0, 0, false},
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{"wrong signature (#0)", "EpsilonEridani", blockID, 2, height, 2, 0, 0, true},
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{"wrong block ID", chainID, makeBlockIDRandom(), 2, height, 2, 0, 0, true},
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{"wrong height", chainID, blockID, 1, height - 1, 1, 0, 0, true},
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{"wrong set size: 4 vs 3", chainID, blockID, 4, height, 3, 0, 0, true},
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{"wrong set size: 1 vs 2", chainID, blockID, 1, height, 2, 0, 0, true},
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{"insufficient voting power: got 30, needed more than 66", chainID, blockID, 10, height, 3, 2, 5, true},
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{"insufficient voting power: got 0, needed more than 6", chainID, blockID, 1, height, 0, 0, 1, true},
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{"insufficient voting power: got 60, needed more than 60", chainID, blockID, 9, height, 6, 3, 0, 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.description, func(t *testing.T) {
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_, valSet, vals := randVoteSet(tc.height, round, tmproto.PrecommitType, tc.valSize, 10)
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totalVotes := tc.blockVotes + tc.absentVotes + tc.nilVotes
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sigs := make([]CommitSig, totalVotes)
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vi := 0
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// add absent sigs first
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for i := 0; i < tc.absentVotes; i++ {
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sigs[vi] = NewCommitSigAbsent()
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vi++
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}
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for i := 0; i < tc.blockVotes+tc.nilVotes; i++ {
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pubKey, err := vals[vi%len(vals)].GetPubKey(context.Background())
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require.NoError(t, err)
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vote := &Vote{
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ValidatorAddress: pubKey.Address(),
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ValidatorIndex: int32(vi),
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Height: tc.height,
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Round: round,
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Type: tmproto.PrecommitType,
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BlockID: tc.blockID,
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Timestamp: time.Now(),
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}
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if i >= tc.blockVotes {
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vote.BlockID = BlockID{}
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}
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v := vote.ToProto()
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require.NoError(t, vals[vi%len(vals)].SignVote(context.Background(), tc.chainID, v))
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vote.Signature = v.Signature
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sigs[vi] = vote.CommitSig()
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vi++
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}
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commit := NewCommit(tc.height, round, tc.blockID, sigs)
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err := valSet.VerifyCommit(chainID, blockID, height, commit)
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if tc.expErr {
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if assert.Error(t, err, "VerifyCommit") {
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assert.Contains(t, err.Error(), tc.description, "VerifyCommit")
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}
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} else {
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assert.NoError(t, err, "VerifyCommit")
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}
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err = valSet.VerifyCommitLight(chainID, blockID, height, commit)
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if tc.expErr {
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if assert.Error(t, err, "VerifyCommitLight") {
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assert.Contains(t, err.Error(), tc.description, "VerifyCommitLight")
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}
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} else {
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assert.NoError(t, err, "VerifyCommitLight")
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}
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// only a subsection of the tests apply to VerifyCommitLightTrusting
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if totalVotes != tc.valSize || !tc.blockID.Equals(blockID) || tc.height != height {
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tc.expErr = false
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}
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err = valSet.VerifyCommitLightTrusting(chainID, commit, trustLevel)
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if tc.expErr {
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if assert.Error(t, err, "VerifyCommitLightTrusting") {
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assert.Contains(t, err.Error(), tc.description, "VerifyCommitLightTrusting")
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}
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} else {
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assert.NoError(t, err, "VerifyCommitLightTrusting")
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}
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})
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}
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}
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func TestValidatorSet_VerifyCommit_CheckAllSignatures(t *testing.T) {
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var (
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chainID = "test_chain_id"
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h = int64(3)
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blockID = makeBlockIDRandom()
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)
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voteSet, valSet, vals := randVoteSet(h, 0, tmproto.PrecommitType, 4, 10)
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commit, err := makeCommit(blockID, h, 0, voteSet, vals, time.Now())
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require.NoError(t, err)
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require.NoError(t, valSet.VerifyCommit(chainID, blockID, h, commit))
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// malleate 4th signature
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vote := voteSet.GetByIndex(3)
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v := vote.ToProto()
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err = vals[3].SignVote(context.Background(), "CentaurusA", v)
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require.NoError(t, err)
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vote.Signature = v.Signature
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commit.Signatures[3] = vote.CommitSig()
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err = valSet.VerifyCommit(chainID, blockID, h, commit)
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if assert.Error(t, err) {
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assert.Contains(t, err.Error(), "wrong signature (#3)")
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}
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}
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func TestValidatorSet_VerifyCommitLight_ReturnsAsSoonAsMajorityOfVotingPowerSigned(t *testing.T) {
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var (
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chainID = "test_chain_id"
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h = int64(3)
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blockID = makeBlockIDRandom()
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)
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voteSet, valSet, vals := randVoteSet(h, 0, tmproto.PrecommitType, 4, 10)
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commit, err := makeCommit(blockID, h, 0, voteSet, vals, time.Now())
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require.NoError(t, err)
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require.NoError(t, valSet.VerifyCommit(chainID, blockID, h, commit))
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// malleate 4th signature (3 signatures are enough for 2/3+)
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vote := voteSet.GetByIndex(3)
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v := vote.ToProto()
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err = vals[3].SignVote(context.Background(), "CentaurusA", v)
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require.NoError(t, err)
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vote.Signature = v.Signature
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commit.Signatures[3] = vote.CommitSig()
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err = valSet.VerifyCommitLight(chainID, blockID, h, commit)
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assert.NoError(t, err)
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}
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func TestValidatorSet_VerifyCommitLightTrusting_ReturnsAsSoonAsTrustLevelOfVotingPowerSigned(t *testing.T) {
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var (
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chainID = "test_chain_id"
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h = int64(3)
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blockID = makeBlockIDRandom()
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)
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voteSet, valSet, vals := randVoteSet(h, 0, tmproto.PrecommitType, 4, 10)
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commit, err := makeCommit(blockID, h, 0, voteSet, vals, time.Now())
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require.NoError(t, err)
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require.NoError(t, valSet.VerifyCommit(chainID, blockID, h, commit))
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// malleate 3rd signature (2 signatures are enough for 1/3+ trust level)
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vote := voteSet.GetByIndex(2)
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v := vote.ToProto()
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err = vals[2].SignVote(context.Background(), "CentaurusA", v)
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require.NoError(t, err)
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vote.Signature = v.Signature
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commit.Signatures[2] = vote.CommitSig()
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err = valSet.VerifyCommitLightTrusting(chainID, commit, tmmath.Fraction{Numerator: 1, Denominator: 3})
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assert.NoError(t, err)
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}
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func TestValidatorSet_VerifyCommitLightTrusting(t *testing.T) {
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var (
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blockID = makeBlockIDRandom()
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voteSet, originalValset, vals = randVoteSet(1, 1, tmproto.PrecommitType, 6, 1)
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commit, err = makeCommit(blockID, 1, 1, voteSet, vals, time.Now())
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newValSet, _ = randValidatorPrivValSet(2, 1)
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)
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require.NoError(t, err)
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testCases := []struct {
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valSet *ValidatorSet
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err bool
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}{
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// good
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0: {
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valSet: originalValset,
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err: false,
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},
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// bad - no overlap between validator sets
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1: {
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valSet: newValSet,
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err: true,
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},
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// good - first two are different but the rest of the same -> >1/3
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2: {
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valSet: NewValidatorSet(append(newValSet.Validators, originalValset.Validators...)),
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err: false,
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},
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}
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for _, tc := range testCases {
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err = tc.valSet.VerifyCommitLightTrusting("test_chain_id", commit,
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tmmath.Fraction{Numerator: 1, Denominator: 3})
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if tc.err {
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assert.Error(t, err)
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} else {
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assert.NoError(t, err)
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}
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}
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}
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func TestValidatorSet_VerifyCommitLightTrustingErrorsOnOverflow(t *testing.T) {
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var (
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blockID = makeBlockIDRandom()
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voteSet, valSet, vals = randVoteSet(1, 1, tmproto.PrecommitType, 1, MaxTotalVotingPower)
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commit, err = makeCommit(blockID, 1, 1, voteSet, vals, time.Now())
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)
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require.NoError(t, err)
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err = valSet.VerifyCommitLightTrusting("test_chain_id", commit,
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tmmath.Fraction{Numerator: 25, Denominator: 55})
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if assert.Error(t, err) {
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assert.Contains(t, err.Error(), "int64 overflow")
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}
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}
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