// Copyright 2018 The dexon-consensus-core Authors
// This file is part of the dexon-consensus-core library.
//
// The dexon-consensus-core 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-core 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-core library. If not, see
// <http://www.gnu.org/licenses/>.
package test
import (
"testing"
"time"
"github.com/dexon-foundation/dexon-consensus-core/blockdb"
"github.com/dexon-foundation/dexon-consensus-core/common"
"github.com/dexon-foundation/dexon-consensus-core/core/types"
"github.com/stretchr/testify/suite"
)
type StopperTestSuite struct {
suite.Suite
}
func (s *StopperTestSuite) TestStopByConfirmedBlocks() {
// This test case makes sure this stopper would stop when
// all validators confirmed at least 'x' count of blocks produced
// by themselves.
var (
req = s.Require()
)
apps := make(map[types.ValidatorID]*App)
dbs := make(map[types.ValidatorID]blockdb.BlockDatabase)
validators := GenerateRandomValidatorIDs(2)
db, err := blockdb.NewMemBackedBlockDB()
req.Nil(err)
for _, vID := range validators {
apps[vID] = NewApp()
dbs[vID] = db
}
deliver := func(blocks []*types.Block) {
hashes := common.Hashes{}
for _, b := range blocks {
hashes = append(hashes, b.Hash)
req.Nil(db.Put(*b))
}
for _, vID := range validators {
app := apps[vID]
for _, h := range hashes {
app.StronglyAcked(h)
}
app.TotalOrderingDeliver(hashes, false)
for _, h := range hashes {
app.DeliverBlock(h, time.Time{})
}
}
}
stopper := NewStopByConfirmedBlocks(2, apps, dbs)
b00 := &types.Block{
ProposerID: validators[0],
Hash: common.NewRandomHash(),
}
deliver([]*types.Block{b00})
b10 := &types.Block{
ProposerID: validators[1],
Hash: common.NewRandomHash(),
}
b11 := &types.Block{
ProposerID: validators[1],
ParentHash: b10.Hash,
Hash: common.NewRandomHash(),
}
deliver([]*types.Block{b10, b11})
req.False(stopper.ShouldStop(validators[1]))
b12 := &types.Block{
ProposerID: validators[1],
ParentHash: b11.Hash,
Hash: common.NewRandomHash(),
}
deliver([]*types.Block{b12})
req.False(stopper.ShouldStop(validators[1]))
b01 := &types.Block{
ProposerID: validators[0],
ParentHash: b00.Hash,
Hash: common.NewRandomHash(),
}
deliver([]*types.Block{b01})
req.True(stopper.ShouldStop(validators[0]))
}
func TestStopper(t *testing.T) {
suite.Run(t, new(StopperTestSuite))
}
