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// Copyright (C) 2019-2021 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package ledger
import (
"testing"
"github.com/stretchr/testify/require"
"github.com/algorand/go-algorand/config"
"github.com/algorand/go-algorand/crypto/compactcert"
"github.com/algorand/go-algorand/data/basics"
"github.com/algorand/go-algorand/data/bookkeeping"
"github.com/algorand/go-algorand/logging"
"github.com/algorand/go-algorand/protocol"
"github.com/algorand/go-algorand/test/partitiontest"
)
func TestValidateCompactCert(t *testing.T) {
partitiontest.PartitionTest(t)
var certHdr bookkeeping.BlockHeader
var cert compactcert.Cert
var votersHdr bookkeeping.BlockHeader
var nextCertRnd basics.Round
var atRound basics.Round
// will definitely fail with nothing set up
err := validateCompactCert(certHdr, cert, votersHdr, nextCertRnd, atRound)
t.Log(err)
require.NotNil(t, err)
certHdr.CurrentProtocol = "TestValidateCompactCert"
certHdr.Round = 1
proto := config.Consensus[certHdr.CurrentProtocol]
proto.CompactCertRounds = 2
config.Consensus[certHdr.CurrentProtocol] = proto
err = validateCompactCert(certHdr, cert, votersHdr, nextCertRnd, atRound)
// still err, but a different err case to cover
t.Log(err)
require.NotNil(t, err)
certHdr.Round = 4
votersHdr.Round = 4
err = validateCompactCert(certHdr, cert, votersHdr, nextCertRnd, atRound)
// still err, but a different err case to cover
t.Log(err)
require.NotNil(t, err)
votersHdr.Round = 2
err = validateCompactCert(certHdr, cert, votersHdr, nextCertRnd, atRound)
// still err, but a different err case to cover
t.Log(err)
require.NotNil(t, err)
nextCertRnd = 4
err = validateCompactCert(certHdr, cert, votersHdr, nextCertRnd, atRound)
// still err, but a different err case to cover
t.Log(err)
require.NotNil(t, err)
votersHdr.CurrentProtocol = certHdr.CurrentProtocol
err = validateCompactCert(certHdr, cert, votersHdr, nextCertRnd, atRound)
// still err, but a different err case to cover
t.Log(err)
require.NotNil(t, err)
votersHdr.CompactCert = make(map[protocol.CompactCertType]bookkeeping.CompactCertState)
cc := votersHdr.CompactCert[protocol.CompactCertBasic]
cc.CompactCertVotersTotal.Raw = 100
votersHdr.CompactCert[protocol.CompactCertBasic] = cc
err = validateCompactCert(certHdr, cert, votersHdr, nextCertRnd, atRound)
// still err, but a different err case to cover
t.Log(err)
require.NotNil(t, err)
cert.SignedWeight = 101
err = validateCompactCert(certHdr, cert, votersHdr, nextCertRnd, atRound)
// still err, but a different err case to cover
t.Log(err)
require.NotNil(t, err)
// Above cases leave validateCompactCert() with 100% coverage.
// crypto/compactcert.Verify has its own tests
}
func TestAcceptableCompactCertWeight(t *testing.T) {
partitiontest.PartitionTest(t)
var votersHdr bookkeeping.BlockHeader
var firstValid basics.Round
logger := logging.TestingLog(t)
votersHdr.CurrentProtocol = "TestAcceptableCompactCertWeight"
proto := config.Consensus[votersHdr.CurrentProtocol]
proto.CompactCertRounds = 2
config.Consensus[votersHdr.CurrentProtocol] = proto
out := AcceptableCompactCertWeight(votersHdr, firstValid, logger)
require.Equal(t, uint64(0), out)
votersHdr.CompactCert = make(map[protocol.CompactCertType]bookkeeping.CompactCertState)
cc := votersHdr.CompactCert[protocol.CompactCertBasic]
cc.CompactCertVotersTotal.Raw = 100
votersHdr.CompactCert[protocol.CompactCertBasic] = cc
out = AcceptableCompactCertWeight(votersHdr, firstValid, logger)
require.Equal(t, uint64(100), out)
// this should exercise the second return case
firstValid = basics.Round(5)
out = AcceptableCompactCertWeight(votersHdr, firstValid, logger)
require.Equal(t, uint64(100), out)
firstValid = basics.Round(6)
proto.CompactCertWeightThreshold = 999999999
config.Consensus[votersHdr.CurrentProtocol] = proto
out = AcceptableCompactCertWeight(votersHdr, firstValid, logger)
require.Equal(t, uint64(0x17), out)
proto.CompactCertRounds = 10000
votersHdr.Round = 10000
firstValid = basics.Round(29000)
config.Consensus[votersHdr.CurrentProtocol] = proto
cc.CompactCertVotersTotal.Raw = 0x7fffffffffffffff
votersHdr.CompactCert[protocol.CompactCertBasic] = cc
proto.CompactCertWeightThreshold = 0x7fffffff
config.Consensus[votersHdr.CurrentProtocol] = proto
out = AcceptableCompactCertWeight(votersHdr, firstValid, logger)
require.Equal(t, uint64(0x4cd35a85213a92a2), out)
// Covers everything except "overflow that shouldn't happen" branches
}
func TestCompactCertParams(t *testing.T) {
partitiontest.PartitionTest(t)
var votersHdr bookkeeping.BlockHeader
var hdr bookkeeping.BlockHeader
res, err := CompactCertParams(votersHdr, hdr)
require.Error(t, err) // not enabled
votersHdr.CurrentProtocol = "TestCompactCertParams"
proto := config.Consensus[votersHdr.CurrentProtocol]
proto.CompactCertRounds = 2
config.Consensus[votersHdr.CurrentProtocol] = proto
votersHdr.Round = 1
res, err = CompactCertParams(votersHdr, hdr)
require.Error(t, err) // wrong round
votersHdr.Round = 2
hdr.Round = 3
res, err = CompactCertParams(votersHdr, hdr)
require.Error(t, err) // wrong round
hdr.Round = 4
res, err = CompactCertParams(votersHdr, hdr)
require.Equal(t, hdr.Round+1, res.SigRound)
// Covers all cases except overflow
}
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