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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 db
import (
"bytes"
"fmt"
"testing"
"time"
"os"
"github.com/stretchr/testify/suite"
"github.com/dexon-foundation/dexon-consensus/common"
"github.com/dexon-foundation/dexon-consensus/core/crypto/dkg"
"github.com/dexon-foundation/dexon-consensus/core/types"
)
type LevelDBTestSuite struct {
suite.Suite
}
func (s *LevelDBTestSuite) TestBasicUsage() {
dbName := fmt.Sprintf("test-db-%v.db", time.Now().UTC())
dbInst, err := NewLevelDBBackedDB(dbName)
s.Require().NoError(err)
defer func(dbName string) {
err = dbInst.Close()
s.NoError(err)
err = os.RemoveAll(dbName)
s.NoError(err)
}(dbName)
// Queried something from an empty database.
hash1 := common.NewRandomHash()
_, err = dbInst.GetBlock(hash1)
s.Equal(ErrBlockDoesNotExist, err)
// Update on an empty database should not success.
node1 := types.NodeID{Hash: common.NewRandomHash()}
block1 := types.Block{
ProposerID: node1,
Hash: hash1,
Position: types.Position{
Height: 1,
},
}
err = dbInst.UpdateBlock(block1)
s.Equal(ErrBlockDoesNotExist, err)
// Put to create a new record should just work fine.
err = dbInst.PutBlock(block1)
s.NoError(err)
// Get it back should work fine.
queried, err := dbInst.GetBlock(block1.Hash)
s.NoError(err)
s.Equal(queried.ProposerID, block1.ProposerID)
// Test Update.
now := time.Now().UTC()
queried.Timestamp = now
err = dbInst.UpdateBlock(queried)
s.NoError(err)
// Try to get it back via NodeID and height.
queried, err = dbInst.GetBlock(block1.Hash)
s.NoError(err)
s.Equal(now, queried.Timestamp)
}
func (s *LevelDBTestSuite) TestSyncIndex() {
dbName := fmt.Sprintf("test-db-%v-si.db", time.Now().UTC())
dbInst, err := NewLevelDBBackedDB(dbName)
s.Require().NoError(err)
defer func(dbName string) {
err = dbInst.Close()
s.NoError(err)
err = os.RemoveAll(dbName)
s.NoError(err)
}(dbName)
// Create some blocks.
blocks := [10]types.Block{}
for i := range blocks {
block := types.Block{
ProposerID: types.NodeID{Hash: common.NewRandomHash()},
Hash: common.NewRandomHash(),
Position: types.Position{
Height: uint64(i),
},
}
dbInst.PutBlock(block)
blocks[i] = block
}
// Save blocks to db.
err = dbInst.Close()
s.NoError(err)
// Load back blocks(syncIndex is called).
dbInst, err = NewLevelDBBackedDB(dbName)
s.Require().NoError(err)
// Verify result.
for _, block := range blocks {
queried, err := dbInst.GetBlock(block.Hash)
s.NoError(err)
s.Equal(block.ProposerID, queried.ProposerID)
s.Equal(block.Position.Height, queried.Position.Height)
}
}
func (s *LevelDBTestSuite) TestCompactionChainTipInfo() {
dbName := fmt.Sprintf("test-db-%v-cc-tip.db", time.Now().UTC())
dbInst, err := NewLevelDBBackedDB(dbName)
s.Require().NoError(err)
defer func(dbName string) {
err = dbInst.Close()
s.NoError(err)
err = os.RemoveAll(dbName)
s.NoError(err)
}(dbName)
// Save some tip info.
hash := common.NewRandomHash()
s.Require().NoError(dbInst.PutCompactionChainTipInfo(hash, 1))
// Get it back to check.
hashBack, height := dbInst.GetCompactionChainTipInfo()
s.Require().Equal(hash, hashBack)
s.Require().Equal(height, uint64(1))
// Unable to put compaction chain tip info with lower height.
err = dbInst.PutCompactionChainTipInfo(hash, 0)
s.Require().Equal(err.Error(), ErrInvalidCompactionChainTipHeight.Error())
// Unable to put compaction chain tip info with height not incremental by 1.
err = dbInst.PutCompactionChainTipInfo(hash, 3)
s.Require().Equal(err.Error(), ErrInvalidCompactionChainTipHeight.Error())
// It's OK to put compaction chain tip info with height incremental by 1.
s.Require().NoError(dbInst.PutCompactionChainTipInfo(hash, 2))
}
func (s *LevelDBTestSuite) TestDKGPrivateKey() {
dbName := fmt.Sprintf("test-db-%v-dkg-prv.db", time.Now().UTC())
dbInst, err := NewLevelDBBackedDB(dbName)
s.Require().NoError(err)
defer func(dbName string) {
err = dbInst.Close()
s.NoError(err)
err = os.RemoveAll(dbName)
s.NoError(err)
}(dbName)
p := dkg.NewPrivateKey()
// Check existence.
exists, err := dbInst.HasDKGPrivateKey(1)
s.Require().NoError(err)
s.Require().False(exists)
// We should be unable to get it, too.
_, err = dbInst.GetDKGPrivateKey(1)
s.Require().Equal(err.Error(), ErrDKGPrivateKeyDoesNotExist.Error())
// Put it.
s.Require().NoError(dbInst.PutDKGPrivateKey(1, *p))
// Put it again, should not success.
err = dbInst.PutDKGPrivateKey(1, *p)
s.Require().Equal(err.Error(), ErrDKGPrivateKeyExists.Error())
// Get it back.
tmpPrv, err := dbInst.GetDKGPrivateKey(1)
s.Require().NoError(err)
s.Require().Equal(bytes.Compare(p.Bytes(), tmpPrv.Bytes()), 0)
}
func (s *LevelDBTestSuite) TestDKGMasterPrivateShares() {
dbName := fmt.Sprintf("test-db-%v-dkg-master-prv-shares.db", time.Now().UTC())
dbInst, err := NewLevelDBBackedDB(dbName)
s.Require().NoError(err)
defer func(dbName string) {
err = dbInst.Close()
s.NoError(err)
err = os.RemoveAll(dbName)
s.NoError(err)
}(dbName)
exists, err := dbInst.HasDKGMasterPrivateSharesKey(1)
s.Require().NoError(err)
s.Require().False(exists)
_, err = dbInst.GetDKGMasterPrivateShares(1)
s.Require().Equal(err.Error(), ErrDKGMasterPrivateSharesDoesNotExist.Error())
privShares, _ := dkg.NewPrivateKeyShares(10)
s.Require().NoError(dbInst.PutOrUpdateDKGMasterPrivateShares(1, *privShares))
tmpShares, err := dbInst.GetDKGMasterPrivateShares(1)
s.Require().NoError(err)
s.Require().True(tmpShares.Equal(privShares))
newPrivShares, _ := dkg.NewPrivateKeyShares(10)
// This privShare will override the old noe.
s.Require().NoError(dbInst.PutOrUpdateDKGMasterPrivateShares(1, *newPrivShares))
newTmpShares, err := dbInst.GetDKGMasterPrivateShares(1)
s.Require().NoError(err)
s.Require().True(newTmpShares.Equal(newPrivShares))
s.Require().False(newTmpShares.Equal(&tmpShares))
}
func TestLevelDB(t *testing.T) {
suite.Run(t, new(LevelDBTestSuite))
}
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