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325 lines
10 KiB
325 lines
10 KiB
package consensus
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import (
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"bytes"
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. "github.com/tendermint/tendermint/common"
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. "github.com/tendermint/tendermint/common/test"
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sm "github.com/tendermint/tendermint/state"
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_ "github.com/tendermint/tendermint/test"
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"github.com/tendermint/tendermint/types"
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"testing"
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)
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// NOTE: see consensus/test.go for common test methods.
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// Convenience: Return new vote with different height
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func withHeight(vote *types.Vote, height uint) *types.Vote {
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vote = vote.Copy()
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vote.Height = height
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return vote
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}
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// Convenience: Return new vote with different round
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func withRound(vote *types.Vote, round uint) *types.Vote {
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vote = vote.Copy()
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vote.Round = round
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return vote
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}
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// Convenience: Return new vote with different type
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func withType(vote *types.Vote, type_ byte) *types.Vote {
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vote = vote.Copy()
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vote.Type = type_
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return vote
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}
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// Convenience: Return new vote with different blockHash
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func withBlockHash(vote *types.Vote, blockHash []byte) *types.Vote {
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vote = vote.Copy()
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vote.BlockHash = blockHash
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return vote
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}
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// Convenience: Return new vote with different blockParts
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func withBlockParts(vote *types.Vote, blockParts types.PartSetHeader) *types.Vote {
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vote = vote.Copy()
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vote.BlockParts = blockParts
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return vote
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}
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func signAddVote(privVal *sm.PrivValidator, vote *types.Vote, voteSet *VoteSet) (bool, error) {
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privVal.SignVoteUnsafe(vote)
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added, _, err := voteSet.Add(privVal.Address, vote)
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return added, err
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}
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func TestAddVote(t *testing.T) {
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height, round := uint(1), uint(0)
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voteSet, _, privValidators := randVoteSet(height, round, types.VoteTypePrevote, 10, 1)
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val0 := privValidators[0]
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// t.Logf(">> %v", voteSet)
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if voteSet.GetByAddress(val0.Address) != nil {
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t.Errorf("Expected GetByAddress(val0.Address) to be nil")
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}
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if voteSet.BitArray().GetIndex(0) {
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t.Errorf("Expected BitArray.GetIndex(0) to be false")
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}
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hash, header, ok := voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || ok {
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t.Errorf("There should be no 2/3 majority")
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}
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vote := &types.Vote{Height: height, Round: round, Type: types.VoteTypePrevote, BlockHash: nil}
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signAddVote(val0, vote, voteSet)
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if voteSet.GetByAddress(val0.Address) == nil {
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t.Errorf("Expected GetByAddress(val0.Address) to be present")
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}
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if !voteSet.BitArray().GetIndex(0) {
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t.Errorf("Expected BitArray.GetIndex(0) to be true")
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}
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hash, header, ok = voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || ok {
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t.Errorf("There should be no 2/3 majority")
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}
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}
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func Test2_3Majority(t *testing.T) {
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height, round := uint(1), uint(0)
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voteSet, _, privValidators := randVoteSet(height, round, types.VoteTypePrevote, 10, 1)
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vote := &types.Vote{Height: height, Round: round, Type: types.VoteTypePrevote, BlockHash: nil}
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// 6 out of 10 voted for nil.
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for i := 0; i < 6; i++ {
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signAddVote(privValidators[i], vote, voteSet)
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}
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hash, header, ok := voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || ok {
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t.Errorf("There should be no 2/3 majority")
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}
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// 7th validator voted for some blockhash
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{
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signAddVote(privValidators[6], withBlockHash(vote, RandBytes(32)), voteSet)
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hash, header, ok = voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || ok {
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t.Errorf("There should be no 2/3 majority")
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}
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}
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// 8th validator voted for nil.
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{
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signAddVote(privValidators[7], vote, voteSet)
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hash, header, ok = voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || !ok {
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t.Errorf("There should be 2/3 majority for nil")
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}
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}
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}
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func Test2_3MajorityRedux(t *testing.T) {
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height, round := uint(1), uint(0)
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voteSet, _, privValidators := randVoteSet(height, round, types.VoteTypePrevote, 100, 1)
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blockHash := CRandBytes(32)
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blockPartsTotal := uint(123)
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blockParts := types.PartSetHeader{blockPartsTotal, CRandBytes(32)}
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vote := &types.Vote{Height: height, Round: round, Type: types.VoteTypePrevote, BlockHash: blockHash, BlockParts: blockParts}
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// 66 out of 100 voted for nil.
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for i := 0; i < 66; i++ {
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signAddVote(privValidators[i], vote, voteSet)
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}
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hash, header, ok := voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || ok {
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t.Errorf("There should be no 2/3 majority")
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}
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// 67th validator voted for nil
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{
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signAddVote(privValidators[66], withBlockHash(vote, nil), voteSet)
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hash, header, ok = voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || ok {
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t.Errorf("There should be no 2/3 majority: last vote added was nil")
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}
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}
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// 68th validator voted for a different BlockParts PartSetHeader
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{
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blockParts := types.PartSetHeader{blockPartsTotal, CRandBytes(32)}
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signAddVote(privValidators[67], withBlockParts(vote, blockParts), voteSet)
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hash, header, ok = voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || ok {
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t.Errorf("There should be no 2/3 majority: last vote added had different PartSetHeader Hash")
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}
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}
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// 69th validator voted for different BlockParts Total
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{
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blockParts := types.PartSetHeader{blockPartsTotal + 1, blockParts.Hash}
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signAddVote(privValidators[68], withBlockParts(vote, blockParts), voteSet)
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hash, header, ok = voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || ok {
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t.Errorf("There should be no 2/3 majority: last vote added had different PartSetHeader Total")
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}
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}
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// 70th validator voted for different BlockHash
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{
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signAddVote(privValidators[69], withBlockHash(vote, RandBytes(32)), voteSet)
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hash, header, ok = voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || ok {
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t.Errorf("There should be no 2/3 majority: last vote added had different BlockHash")
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}
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}
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// 71st validator voted for the right BlockHash & BlockParts
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{
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signAddVote(privValidators[70], vote, voteSet)
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hash, header, ok = voteSet.TwoThirdsMajority()
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if !bytes.Equal(hash, blockHash) || !header.Equals(blockParts) || !ok {
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t.Errorf("There should be 2/3 majority")
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}
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}
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}
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func TestBadVotes(t *testing.T) {
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height, round := uint(1), uint(0)
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voteSet, _, privValidators := randVoteSet(height, round, types.VoteTypePrevote, 10, 1)
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// val0 votes for nil.
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vote := &types.Vote{Height: height, Round: round, Type: types.VoteTypePrevote, BlockHash: nil}
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added, err := signAddVote(privValidators[0], vote, voteSet)
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if !added || err != nil {
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t.Errorf("Expected Add() to succeed")
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}
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// val0 votes again for some block.
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added, err = signAddVote(privValidators[0], withBlockHash(vote, RandBytes(32)), voteSet)
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if added || err == nil {
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t.Errorf("Expected Add() to fail, dupeout.")
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}
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// val1 votes on another height
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added, err = signAddVote(privValidators[1], withHeight(vote, height+1), voteSet)
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if added {
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t.Errorf("Expected Add() to fail, wrong height")
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}
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// val2 votes on another round
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added, err = signAddVote(privValidators[2], withRound(vote, round+1), voteSet)
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if added {
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t.Errorf("Expected Add() to fail, wrong round")
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}
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// val3 votes of another type.
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added, err = signAddVote(privValidators[3], withType(vote, types.VoteTypePrecommit), voteSet)
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if added {
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t.Errorf("Expected Add() to fail, wrong type")
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}
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}
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func TestAddCommitsToPrevoteVotes(t *testing.T) {
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height, round := uint(2), uint(5)
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voteSet, _, privValidators := randVoteSet(height, round, types.VoteTypePrevote, 10, 1)
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// val0, val1, val2, val3, val4, val5 vote for nil.
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vote := &types.Vote{Height: height, Round: round, Type: types.VoteTypePrevote, BlockHash: nil}
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for i := 0; i < 6; i++ {
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signAddVote(privValidators[i], vote, voteSet)
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}
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hash, header, ok := voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || ok {
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t.Errorf("There should be no 2/3 majority")
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}
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// Attempt to add a commit from val6 at a previous height
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vote = &types.Vote{Height: height - 1, Round: round, Type: types.VoteTypeCommit, BlockHash: nil}
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added, _ := signAddVote(privValidators[6], vote, voteSet)
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if added {
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t.Errorf("Expected Add() to fail, wrong height.")
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}
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// Attempt to add a commit from val6 at a later round
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vote = &types.Vote{Height: height, Round: round + 1, Type: types.VoteTypeCommit, BlockHash: nil}
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added, _ = signAddVote(privValidators[6], vote, voteSet)
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if added {
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t.Errorf("Expected Add() to fail, cannot add future round vote.")
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}
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// Attempt to add a commit from val6 for currrent height/round.
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vote = &types.Vote{Height: height, Round: round, Type: types.VoteTypeCommit, BlockHash: nil}
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added, err := signAddVote(privValidators[6], vote, voteSet)
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if added || err == nil {
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t.Errorf("Expected Add() to fail, only prior round commits can be added.")
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}
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// Add commit from val6 at a previous round
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vote = &types.Vote{Height: height, Round: round - 1, Type: types.VoteTypeCommit, BlockHash: nil}
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added, err = signAddVote(privValidators[6], vote, voteSet)
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if !added || err != nil {
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t.Errorf("Expected Add() to succeed, commit for prior rounds are relevant.")
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}
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// Also add commit from val7 for previous round.
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vote = &types.Vote{Height: height, Round: round - 2, Type: types.VoteTypeCommit, BlockHash: nil}
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added, err = signAddVote(privValidators[7], vote, voteSet)
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if !added || err != nil {
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t.Errorf("Expected Add() to succeed. err: %v", err)
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}
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// We should have 2/3 majority
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hash, header, ok = voteSet.TwoThirdsMajority()
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if hash != nil || !header.IsZero() || !ok {
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t.Errorf("There should be 2/3 majority for nil")
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}
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}
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func TestMakeValidation(t *testing.T) {
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height, round := uint(1), uint(0)
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voteSet, _, privValidators := randVoteSet(height, round, types.VoteTypeCommit, 10, 1)
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blockHash, blockParts := CRandBytes(32), types.PartSetHeader{123, CRandBytes(32)}
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vote := &types.Vote{Height: height, Round: round, Type: types.VoteTypeCommit,
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BlockHash: blockHash, BlockParts: blockParts}
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// 6 out of 10 voted for some block.
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for i := 0; i < 6; i++ {
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signAddVote(privValidators[i], vote, voteSet)
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}
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// MakeValidation should fail.
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AssertPanics(t, "Doesn't have +2/3 majority", func() { voteSet.MakeValidation() })
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// 7th voted for some other block.
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{
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vote := withBlockHash(vote, RandBytes(32))
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vote = withBlockParts(vote, types.PartSetHeader{123, RandBytes(32)})
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signAddVote(privValidators[6], vote, voteSet)
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}
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// The 8th voted like everyone else.
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{
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signAddVote(privValidators[7], vote, voteSet)
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}
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validation := voteSet.MakeValidation()
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// Validation should have 10 elements
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if len(validation.Commits) != 10 {
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t.Errorf("Validation Commits should have the same number of commits as validators")
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}
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// Ensure that Validation commits are ordered.
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if err := validation.ValidateBasic(); err != nil {
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t.Errorf("Error in Validation.ValidateBasic(): %v", err)
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}
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}
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