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// Copyright 2018 The dexon-consensus Authors
// This file is part of the dexon-consensus library.
//
// The dexon-consensus library is free software: you can redistribute it
// and/or modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the License,
// or (at your option) any later version.
//
// The dexon-consensus library is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
// General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the dexon-consensus library. If not, see
// <http://www.gnu.org/licenses/>.
package core
import (
"testing"
"time"
"github.com/stretchr/testify/suite"
"github.com/dexon-foundation/dexon-consensus/common"
"github.com/dexon-foundation/dexon-consensus/core/test"
"github.com/dexon-foundation/dexon-consensus/core/types"
"github.com/dexon-foundation/dexon-consensus/core/utils"
)
type UtilsTestSuite struct {
suite.Suite
}
func (s *UtilsTestSuite) TestRemoveFromSortedUint32Slice() {
// Remove something exists.
xs := []uint32{1, 2, 3, 4, 5}
s.Equal(
removeFromSortedUint32Slice(xs, 3),
[]uint32{1, 2, 4, 5})
// Remove something not exists.
s.Equal(removeFromSortedUint32Slice(xs, 6), xs)
// Remove from empty slice, should not panic.
s.Equal([]uint32{}, removeFromSortedUint32Slice([]uint32{}, 1))
}
func (s *UtilsTestSuite) TestVerifyAgreementResult() {
prvKeys, pubKeys, err := test.NewKeys(4)
s.Require().NoError(err)
gov, err := test.NewGovernance(test.NewState(
pubKeys, time.Second, &common.NullLogger{}, true), ConfigRoundShift)
s.Require().NoError(err)
cache := utils.NewNodeSetCache(gov)
hash := common.NewRandomHash()
signers := make([]*utils.Signer, 0, len(prvKeys))
for _, prvKey := range prvKeys {
signers = append(signers, utils.NewSigner(prvKey))
}
pos := types.Position{
Round: 0,
ChainID: 0,
Height: 20,
}
baResult := &types.AgreementResult{
BlockHash: hash,
Position: pos,
}
for _, signer := range signers {
vote := types.NewVote(types.VoteCom, hash, 0)
vote.Position = pos
s.Require().NoError(signer.SignVote(vote))
baResult.Votes = append(baResult.Votes, *vote)
}
s.Require().NoError(VerifyAgreementResult(baResult, cache))
// Test negative case.
// All period should be the same.
baResult.Votes[1].Period++
s.Equal(ErrIncorrectVotePeriod, VerifyAgreementResult(baResult, cache))
baResult.Votes[1].Period--
// Blockhash should match the one in votes.
baResult.BlockHash = common.NewRandomHash()
s.Equal(ErrIncorrectVoteBlockHash, VerifyAgreementResult(baResult, cache))
baResult.BlockHash = hash
// Position should match.
baResult.Position.Height++
s.Equal(ErrIncorrectVotePosition, VerifyAgreementResult(baResult, cache))
baResult.Position = pos
// types.VotePreCom is not accepted in agreement result.
baResult.Votes[0].Type = types.VotePreCom
s.Equal(ErrIncorrectVoteType, VerifyAgreementResult(baResult, cache))
baResult.Votes[0].Type = types.VoteCom
// Vote type should be the same.
baResult.Votes[1].Type = types.VoteFastCom
s.Equal(ErrIncorrectVoteType, VerifyAgreementResult(baResult, cache))
baResult.Votes[1].Type = types.VoteCom
// Only vote proposed by notarySet is valid.
baResult.Votes[0].ProposerID = types.NodeID{Hash: common.NewRandomHash()}
s.Equal(ErrIncorrectVoteProposer, VerifyAgreementResult(baResult, cache))
baResult.Votes[0].ProposerID = types.NewNodeID(pubKeys[0])
// Vote shuold have valid signature.
baResult.Votes[0].Signature, err = prvKeys[0].Sign(common.NewRandomHash())
s.Require().NoError(err)
s.Equal(ErrIncorrectVoteSignature, VerifyAgreementResult(baResult, cache))
s.Require().NoError(signers[0].SignVote(&baResult.Votes[0]))
// Unique votes shuold be more than threshold.
baResult.Votes = baResult.Votes[:1]
s.Equal(ErrNotEnoughVotes, VerifyAgreementResult(baResult, cache))
for range signers {
baResult.Votes = append(baResult.Votes, baResult.Votes[0])
}
s.Equal(ErrNotEnoughVotes, VerifyAgreementResult(baResult, cache))
}
func TestUtils(t *testing.T) {
suite.Run(t, new(UtilsTestSuite))
}
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