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// Copyright 2019 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 syncer
import (
"testing"
"time"
"github.com/dexon-foundation/dexon-consensus/common"
"github.com/dexon-foundation/dexon-consensus/core"
"github.com/dexon-foundation/dexon-consensus/core/crypto"
"github.com/dexon-foundation/dexon-consensus/core/test"
"github.com/dexon-foundation/dexon-consensus/core/types"
"github.com/dexon-foundation/dexon-consensus/core/utils"
"github.com/stretchr/testify/suite"
)
type AgreementTestSuite struct {
suite.Suite
signers []*utils.Signer
pubKeys []crypto.PublicKey
prvKeys []crypto.PrivateKey
}
func (s *AgreementTestSuite) SetupSuite() {
var err error
s.prvKeys, s.pubKeys, err = test.NewKeys(4)
s.Require().NoError(err)
for _, k := range s.prvKeys {
s.signers = append(s.signers, utils.NewSigner(k))
}
}
func (s *AgreementTestSuite) prepareAgreementResult(pos types.Position,
hash common.Hash) *types.AgreementResult {
votes := []types.Vote{}
for _, signer := range s.signers {
v := types.NewVote(types.VoteCom, hash, 0)
v.Position = pos
s.Require().NoError(signer.SignVote(v))
votes = append(votes, *v)
}
return &types.AgreementResult{
BlockHash: hash,
Position: pos,
Votes: votes,
}
}
func (s *AgreementTestSuite) prepareBlock(pos types.Position) *types.Block {
b := &types.Block{
Position: pos,
}
s.Require().NoError(s.signers[0].SignBlock(b))
return b
}
func (s *AgreementTestSuite) TestFutureAgreementResult() {
// Make sure future types.AgreementResult could be processed correctly
// when corresponding CRS is ready.
var (
futureRound = uint64(7)
pos = types.Position{Round: 7, Height: 1000}
)
gov, err := test.NewGovernance(
test.NewState(1, s.pubKeys, time.Second, &common.NullLogger{}, true),
core.ConfigRoundShift,
)
s.Require().NoError(err)
// Make sure goverance is ready for some future round, including CRS.
gov.CatchUpWithRound(futureRound)
for i := uint64(2); i <= futureRound; i++ {
gov.ProposeCRS(i, common.NewRandomHash().Bytes())
}
s.Require().NoError(err)
blockChan := make(chan *types.Block, 10)
agr := newAgreement(blockChan, make(chan common.Hash, 100),
utils.NewNodeSetCache(gov), &common.SimpleLogger{})
go agr.run()
block := s.prepareBlock(pos)
result := s.prepareAgreementResult(pos, block.Hash)
agr.inputChan <- result
agr.inputChan <- block
agr.inputChan <- futureRound
select {
case confirmedBlock := <-blockChan:
s.Require().Equal(block.Hash, confirmedBlock.Hash)
case <-time.After(2 * time.Second):
s.Require().True(false)
}
}
func TestAgreement(t *testing.T) {
suite.Run(t, new(AgreementTestSuite))
}
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