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package consensus
import (
. "github.com/tendermint/tendermint/blocks"
. "github.com/tendermint/tendermint/common"
. "github.com/tendermint/tendermint/state"
"testing"
)
func makeValidator(id uint64, votingPower uint64) (*Validator, *PrivAccount) {
privAccount := GenPrivAccount()
privAccount.Id = id
return &Validator{
Account: privAccount.Account,
VotingPower: votingPower,
}, privAccount
}
func makeVoteSet(height uint32, round uint16, numValidators int, votingPower uint64) (*VoteSet, *ValidatorSet, []*PrivAccount) {
vals := make([]*Validator, numValidators)
privAccounts := make([]*PrivAccount, numValidators)
for i := 0; i < numValidators; i++ {
val, privAccount := makeValidator(uint64(i), votingPower)
vals[i] = val
privAccounts[i] = privAccount
}
valSet := NewValidatorSet(vals)
return NewVoteSet(height, round, VoteTypeBare, valSet), valSet, privAccounts
}
func TestAddVote(t *testing.T) {
voteSet, _, privAccounts := makeVoteSet(0, 0, 10, 1)
// t.Logf(">> %v", voteSet)
if voteSet.GetVote(0) != nil {
t.Errorf("Expected GetVote(0) to be nil")
}
if voteSet.BitArray().GetIndex(0) {
t.Errorf("Expected BitArray.GetIndex(0) to be false")
}
hash, commitTime, ok := voteSet.TwoThirdsMajority()
if hash != nil || !commitTime.IsZero() || ok {
t.Errorf("There should be no 2/3 majority")
}
vote := &Vote{Height: 0, Round: 0, Type: VoteTypeBare, BlockHash: nil}
privAccounts[0].Sign(vote)
voteSet.Add(vote)
if voteSet.GetVote(0) == nil {
t.Errorf("Expected GetVote(0) to be present")
}
if !voteSet.BitArray().GetIndex(0) {
t.Errorf("Expected BitArray.GetIndex(0) to be true")
}
hash, commitTime, ok = voteSet.TwoThirdsMajority()
if hash != nil || !commitTime.IsZero() || ok {
t.Errorf("There should be no 2/3 majority")
}
}
func Test2_3Majority(t *testing.T) {
voteSet, _, privAccounts := makeVoteSet(0, 0, 10, 1)
// 6 out of 10 voted for nil.
vote := &Vote{Height: 0, Round: 0, Type: VoteTypeBare, BlockHash: nil}
for i := 0; i < 6; i++ {
privAccounts[i].Sign(vote)
voteSet.Add(vote)
}
hash, commitTime, ok := voteSet.TwoThirdsMajority()
if hash != nil || !commitTime.IsZero() || ok {
t.Errorf("There should be no 2/3 majority")
}
// 7th validator voted for some blockhash
vote.BlockHash = CRandBytes(32)
privAccounts[6].Sign(vote)
voteSet.Add(vote)
hash, commitTime, ok = voteSet.TwoThirdsMajority()
if hash != nil || !commitTime.IsZero() || ok {
t.Errorf("There should be no 2/3 majority")
}
// 8th validator voted for nil.
vote.BlockHash = nil
privAccounts[7].Sign(vote)
voteSet.Add(vote)
hash, commitTime, ok = voteSet.TwoThirdsMajority()
if hash != nil || commitTime.IsZero() || !ok {
t.Errorf("There should be 2/3 majority for nil")
}
}
func TestBadVotes(t *testing.T) {
voteSet, _, privAccounts := makeVoteSet(1, 0, 10, 1)
// val0 votes for nil.
vote := &Vote{Height: 1, Round: 0, Type: VoteTypeBare, BlockHash: nil}
privAccounts[0].Sign(vote)
added, err := voteSet.Add(vote)
if !added || err != nil {
t.Errorf("Expected Add(vote) to succeed")
}
// val0 votes again for some block.
vote = &Vote{Height: 1, Round: 0, Type: VoteTypeBare, BlockHash: CRandBytes(32)}
privAccounts[0].Sign(vote)
added, err = voteSet.Add(vote)
if added || err == nil {
t.Errorf("Expected Add(vote) to fail, dupeout.")
}
// val1 votes on another height
vote = &Vote{Height: 0, Round: 0, Type: VoteTypeBare, BlockHash: nil}
privAccounts[1].Sign(vote)
added, err = voteSet.Add(vote)
if added {
t.Errorf("Expected Add(vote) to fail, wrong height")
}
// val2 votes on another round
vote = &Vote{Height: 1, Round: 1, Type: VoteTypeBare, BlockHash: nil}
privAccounts[2].Sign(vote)
added, err = voteSet.Add(vote)
if added {
t.Errorf("Expected Add(vote) to fail, wrong round")
}
// val3 votes of another type.
vote = &Vote{Height: 1, Round: 0, Type: VoteTypePrecommit, BlockHash: nil}
privAccounts[3].Sign(vote)
added, err = voteSet.Add(vote)
if added {
t.Errorf("Expected Add(vote) to fail, wrong type")
}
}
func TestAddCommitsToBareVotes(t *testing.T) {
voteSet, _, privAccounts := makeVoteSet(1, 5, 10, 1)
// val0, val1, val2, val3, val4, val5 vote for nil.
vote := &Vote{Height: 1, Round: 5, Type: VoteTypeBare, BlockHash: nil}
for i := 0; i < 6; i++ {
privAccounts[i].Sign(vote)
voteSet.Add(vote)
}
hash, commitTime, ok := voteSet.TwoThirdsMajority()
if hash != nil || !commitTime.IsZero() || ok {
t.Errorf("There should be no 2/3 majority")
}
// Attempt to add a commit from val6 at a previous height
vote = &Vote{Height: 0, Round: 5, Type: VoteTypeCommit, BlockHash: nil}
privAccounts[6].Sign(vote)
added, _ := voteSet.Add(vote)
if added {
t.Errorf("Expected Add(vote) to fail, wrong height.")
}
// Attempt to add a commit from val6 at a later round
vote = &Vote{Height: 1, Round: 6, Type: VoteTypeCommit, BlockHash: nil}
privAccounts[6].Sign(vote)
added, _ = voteSet.Add(vote)
if added {
t.Errorf("Expected Add(vote) to fail, cannot add future round vote.")
}
// Attempt to add a commit from val6 for currrent height/round.
vote = &Vote{Height: 1, Round: 5, Type: VoteTypeCommit, BlockHash: nil}
privAccounts[6].Sign(vote)
added, err := voteSet.Add(vote)
if added || err == nil {
t.Errorf("Expected Add(vote) to fail, only prior round commits can be added.")
}
// Add commit from val6 at a previous round
vote = &Vote{Height: 1, Round: 4, Type: VoteTypeCommit, BlockHash: nil}
privAccounts[6].Sign(vote)
added, err = voteSet.Add(vote)
if !added || err != nil {
t.Errorf("Expected Add(vote) to succeed, commit for prior rounds are relevant.")
}
// Also add commit from val7 for previous round.
vote = &Vote{Height: 1, Round: 3, Type: VoteTypeCommit, BlockHash: nil}
privAccounts[7].Sign(vote)
added, err = voteSet.Add(vote)
if !added || err != nil {
t.Errorf("Expected Add(vote) to succeed. err: %v", err)
}
// We should have 2/3 majority
hash, commitTime, ok = voteSet.TwoThirdsMajority()
if hash != nil || commitTime.IsZero() || !ok {
t.Errorf("There should be 2/3 majority for nil")
}
}