prysm-pulse/beacon-chain/slasher/detect_attestations_test.go
terence tsao c21e43e4c5
Refactor: move functions beacon-chain/core/time -> time/slots (#9719)
* Move necessary functions beacon-chain/core/time -> time/slots

* Fix fuzz

* Fix build

* Update slot_epoch.go
2021-10-01 15:17:57 -05:00

918 lines
28 KiB
Go

package slasher
import (
"context"
"fmt"
"sort"
"testing"
"time"
types "github.com/prysmaticlabs/eth2-types"
mock "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
"github.com/prysmaticlabs/prysm/beacon-chain/core/signing"
dbtest "github.com/prysmaticlabs/prysm/beacon-chain/db/testing"
"github.com/prysmaticlabs/prysm/beacon-chain/operations/slashings"
slashertypes "github.com/prysmaticlabs/prysm/beacon-chain/slasher/types"
"github.com/prysmaticlabs/prysm/config/params"
"github.com/prysmaticlabs/prysm/crypto/bls"
"github.com/prysmaticlabs/prysm/encoding/bytesutil"
ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
"github.com/prysmaticlabs/prysm/testing/assert"
"github.com/prysmaticlabs/prysm/testing/require"
"github.com/prysmaticlabs/prysm/testing/util"
"github.com/prysmaticlabs/prysm/time/slots"
logTest "github.com/sirupsen/logrus/hooks/test"
)
func Test_processQueuedAttestations(t *testing.T) {
type args struct {
attestationQueue []*slashertypes.IndexedAttestationWrapper
currentEpoch types.Epoch
}
tests := []struct {
name string
args args
shouldNotBeSlashable bool
}{
{
name: "Detects surrounding vote (source 1, target 2), (source 0, target 3)",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 1, 2, []uint64{0, 1}, nil),
createAttestationWrapper(t, 0, 3, []uint64{0, 1}, nil),
},
currentEpoch: 4,
},
},
{
name: "Detects surrounding vote (source 50, target 51), (source 0, target 1000)",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 50, 51, []uint64{0}, nil),
createAttestationWrapper(t, 0, 1000, []uint64{0}, nil),
},
currentEpoch: 1000,
},
},
{
name: "Detects surrounded vote (source 0, target 3), (source 1, target 2)",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 0, 3, []uint64{0, 1}, nil),
createAttestationWrapper(t, 1, 2, []uint64{0, 1}, nil),
},
currentEpoch: 4,
},
},
{
name: "Detects double vote, (source 1, target 2), (source 0, target 2)",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 1, 2, []uint64{0, 1}, nil),
createAttestationWrapper(t, 0, 2, []uint64{0, 1}, nil),
},
currentEpoch: 4,
},
},
{
name: "Not slashable, surrounding but non-overlapping attesting indices within same validator chunk index",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 1, 2, []uint64{0}, nil),
createAttestationWrapper(t, 0, 3, []uint64{1}, nil),
},
currentEpoch: 4,
},
shouldNotBeSlashable: true,
},
{
name: "Not slashable, surrounded but non-overlapping attesting indices within same validator chunk index",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 0, 3, []uint64{0, 1}, nil),
createAttestationWrapper(t, 1, 2, []uint64{2, 3}, nil),
},
currentEpoch: 4,
},
shouldNotBeSlashable: true,
},
{
name: "Not slashable, surrounding but non-overlapping attesting indices in different validator chunk index",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 0, 3, []uint64{0}, nil),
createAttestationWrapper(
t,
1,
2,
[]uint64{params.BeaconConfig().MinGenesisActiveValidatorCount - 1},
nil,
),
},
currentEpoch: 4,
},
shouldNotBeSlashable: true,
},
{
name: "Not slashable, surrounded but non-overlapping attesting indices in different validator chunk index",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 0, 3, []uint64{0}, nil),
createAttestationWrapper(
t,
1,
2,
[]uint64{params.BeaconConfig().MinGenesisActiveValidatorCount - 1},
nil,
),
},
currentEpoch: 4,
},
shouldNotBeSlashable: true,
},
{
name: "Not slashable, (source 1, target 2), (source 2, target 3)",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 1, 2, []uint64{0, 1}, nil),
createAttestationWrapper(t, 2, 3, []uint64{0, 1}, nil),
},
currentEpoch: 4,
},
shouldNotBeSlashable: true,
},
{
name: "Not slashable, (source 0, target 3), (source 2, target 4)",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 0, 3, []uint64{0, 1}, nil),
createAttestationWrapper(t, 2, 4, []uint64{0, 1}, nil),
},
currentEpoch: 4,
},
shouldNotBeSlashable: true,
},
{
name: "Not slashable, (source 0, target 2), (source 0, target 3)",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 0, 2, []uint64{0, 1}, nil),
createAttestationWrapper(t, 0, 3, []uint64{0, 1}, nil),
},
currentEpoch: 4,
},
shouldNotBeSlashable: true,
},
{
name: "Not slashable, (source 0, target 3), (source 0, target 2)",
args: args{
attestationQueue: []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 0, 3, []uint64{0, 1}, nil),
createAttestationWrapper(t, 0, 2, []uint64{0, 1}, nil),
},
currentEpoch: 4,
},
shouldNotBeSlashable: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
hook := logTest.NewGlobal()
defer hook.Reset()
slasherDB := dbtest.SetupSlasherDB(t)
ctx, cancel := context.WithCancel(context.Background())
currentTime := time.Now()
totalSlots := uint64(tt.args.currentEpoch) * uint64(params.BeaconConfig().SlotsPerEpoch)
secondsSinceGenesis := time.Duration(totalSlots * params.BeaconConfig().SecondsPerSlot)
genesisTime := currentTime.Add(-secondsSinceGenesis * time.Second)
beaconState, err := util.NewBeaconState()
require.NoError(t, err)
slot, err := slots.EpochStart(tt.args.currentEpoch)
require.NoError(t, err)
require.NoError(t, beaconState.SetSlot(slot))
mockChain := &mock.ChainService{
State: beaconState,
Slot: &slot,
}
// Initialize validators in the state.
numVals := params.BeaconConfig().MinGenesisActiveValidatorCount
validators := make([]*ethpb.Validator, numVals)
privKeys := make([]bls.SecretKey, numVals)
for i := range validators {
privKey, err := bls.RandKey()
require.NoError(t, err)
privKeys[i] = privKey
validators[i] = &ethpb.Validator{
PublicKey: privKey.PublicKey().Marshal(),
WithdrawalCredentials: make([]byte, 32),
}
}
err = beaconState.SetValidators(validators)
require.NoError(t, err)
domain, err := signing.Domain(
beaconState.Fork(),
0,
params.BeaconConfig().DomainBeaconAttester,
beaconState.GenesisValidatorRoot(),
)
require.NoError(t, err)
// Create valid signatures for all input attestations in the test.
for _, attestationWrapper := range tt.args.attestationQueue {
signingRoot, err := signing.ComputeSigningRoot(attestationWrapper.IndexedAttestation.Data, domain)
require.NoError(t, err)
attestingIndices := attestationWrapper.IndexedAttestation.AttestingIndices
sigs := make([]bls.Signature, len(attestingIndices))
for i, validatorIndex := range attestingIndices {
privKey := privKeys[validatorIndex]
sigs[i] = privKey.Sign(signingRoot[:])
}
attestationWrapper.IndexedAttestation.Signature = bls.AggregateSignatures(sigs).Marshal()
}
s := &Service{
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
HeadStateFetcher: mockChain,
AttestationStateFetcher: mockChain,
SlashingPoolInserter: &slashings.PoolMock{},
},
params: DefaultParams(),
attsQueue: newAttestationsQueue(),
genesisTime: genesisTime,
}
currentSlotChan := make(chan types.Slot)
exitChan := make(chan struct{})
go func() {
s.processQueuedAttestations(ctx, currentSlotChan)
exitChan <- struct{}{}
}()
s.attsQueue.extend(tt.args.attestationQueue)
currentSlotChan <- slot
time.Sleep(time.Millisecond * 200)
cancel()
<-exitChan
if tt.shouldNotBeSlashable {
require.LogsDoNotContain(t, hook, "Attester slashing detected")
} else {
require.LogsContain(t, hook, "Attester slashing detected")
}
})
}
}
func Test_processQueuedAttestations_MultipleChunkIndices(t *testing.T) {
hook := logTest.NewGlobal()
defer hook.Reset()
slasherDB := dbtest.SetupSlasherDB(t)
ctx, cancel := context.WithCancel(context.Background())
slasherParams := DefaultParams()
// We process submit attestations from chunk index 0 to chunk index 1.
// What we want to test here is if we can proceed
// with processing queued attestations once the chunk index changes.
// For example, epochs 0 - 15 are chunk 0, epochs 16 - 31 are chunk 1, etc.
startEpoch := types.Epoch(slasherParams.chunkSize)
endEpoch := types.Epoch(slasherParams.chunkSize + 1)
currentTime := time.Now()
totalSlots := uint64(startEpoch) * uint64(params.BeaconConfig().SlotsPerEpoch)
secondsSinceGenesis := time.Duration(totalSlots * params.BeaconConfig().SecondsPerSlot)
genesisTime := currentTime.Add(-secondsSinceGenesis * time.Second)
beaconState, err := util.NewBeaconState()
require.NoError(t, err)
mockChain := &mock.ChainService{
State: beaconState,
}
s := &Service{
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
HeadStateFetcher: mockChain,
AttestationStateFetcher: mockChain,
SlashingPoolInserter: &slashings.PoolMock{},
},
params: slasherParams,
attsQueue: newAttestationsQueue(),
genesisTime: genesisTime,
}
currentSlotChan := make(chan types.Slot)
exitChan := make(chan struct{})
go func() {
s.processQueuedAttestations(ctx, currentSlotChan)
exitChan <- struct{}{}
}()
for i := startEpoch; i <= endEpoch; i++ {
source := types.Epoch(0)
target := types.Epoch(0)
if i != 0 {
source = i - 1
target = i
}
var sr [32]byte
copy(sr[:], fmt.Sprintf("%d", i))
att := createAttestationWrapper(t, source, target, []uint64{0}, sr[:])
s.attsQueue = newAttestationsQueue()
s.attsQueue.push(att)
slot, err := slots.EpochStart(i)
require.NoError(t, err)
require.NoError(t, mockChain.State.SetSlot(slot))
s.serviceCfg.HeadStateFetcher = mockChain
currentSlotChan <- slot
}
time.Sleep(time.Millisecond * 200)
cancel()
<-exitChan
require.LogsDoNotContain(t, hook, "Slashable offenses found")
require.LogsDoNotContain(t, hook, "Could not detect")
}
func Test_processQueuedAttestations_OverlappingChunkIndices(t *testing.T) {
hook := logTest.NewGlobal()
defer hook.Reset()
slasherDB := dbtest.SetupSlasherDB(t)
ctx, cancel := context.WithCancel(context.Background())
slasherParams := DefaultParams()
startEpoch := types.Epoch(slasherParams.chunkSize)
currentTime := time.Now()
totalSlots := uint64(startEpoch) * uint64(params.BeaconConfig().SlotsPerEpoch)
secondsSinceGenesis := time.Duration(totalSlots * params.BeaconConfig().SecondsPerSlot)
genesisTime := currentTime.Add(-secondsSinceGenesis * time.Second)
beaconState, err := util.NewBeaconState()
require.NoError(t, err)
mockChain := &mock.ChainService{
State: beaconState,
}
s := &Service{
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
HeadStateFetcher: mockChain,
AttestationStateFetcher: mockChain,
SlashingPoolInserter: &slashings.PoolMock{},
},
params: slasherParams,
attsQueue: newAttestationsQueue(),
genesisTime: genesisTime,
}
currentSlotChan := make(chan types.Slot)
exitChan := make(chan struct{})
go func() {
s.processQueuedAttestations(ctx, currentSlotChan)
exitChan <- struct{}{}
}()
// We create two attestations fully spanning chunk indices 0 and chunk 1
att1 := createAttestationWrapper(t, types.Epoch(slasherParams.chunkSize-2), types.Epoch(slasherParams.chunkSize), []uint64{0, 1}, nil)
att2 := createAttestationWrapper(t, types.Epoch(slasherParams.chunkSize-1), types.Epoch(slasherParams.chunkSize+1), []uint64{0, 1}, nil)
// We attempt to process the batch.
s.attsQueue = newAttestationsQueue()
s.attsQueue.push(att1)
s.attsQueue.push(att2)
slot, err := slots.EpochStart(att2.IndexedAttestation.Data.Target.Epoch)
require.NoError(t, err)
mockChain.Slot = &slot
s.serviceCfg.HeadStateFetcher = mockChain
currentSlotChan <- slot
time.Sleep(time.Millisecond * 200)
cancel()
<-exitChan
require.LogsDoNotContain(t, hook, "Slashable offenses found")
require.LogsDoNotContain(t, hook, "Could not detect")
}
func Test_determineChunksToUpdateForValidators_FromLatestWrittenEpoch(t *testing.T) {
slasherDB := dbtest.SetupSlasherDB(t)
ctx := context.Background()
// Check if the chunk at chunk index already exists in-memory.
s := &Service{
params: &Parameters{
chunkSize: 2, // 2 epochs in a chunk.
validatorChunkSize: 2, // 2 validators in a chunk.
historyLength: 4,
},
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
},
}
validators := []types.ValidatorIndex{
1, 2,
}
currentEpoch := types.Epoch(3)
// Set the latest written epoch for validators to current epoch - 1.
latestWrittenEpoch := currentEpoch - 1
err := slasherDB.SaveLastEpochWrittenForValidators(ctx, validators, latestWrittenEpoch)
require.NoError(t, err)
// Because the validators have no recorded latest epoch written in the database,
// Because the latest written epoch for the input validators is == 2, we expect
// that we will update all epochs from 2 up to 3 (the current epoch). This is all
// safe contained in chunk index 1.
chunkIndices, err := s.determineChunksToUpdateForValidators(
ctx,
&chunkUpdateArgs{
currentEpoch: currentEpoch,
},
validators,
)
require.NoError(t, err)
require.DeepEqual(t, []uint64{1}, chunkIndices)
}
func Test_determineChunksToUpdateForValidators_FromGenesis(t *testing.T) {
slasherDB := dbtest.SetupSlasherDB(t)
ctx := context.Background()
// Check if the chunk at chunk index already exists in-memory.
s := &Service{
params: &Parameters{
chunkSize: 2, // 2 epochs in a chunk.
validatorChunkSize: 2, // 2 validators in a chunk.
historyLength: 4,
},
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
},
}
validators := []types.ValidatorIndex{
1, 2,
}
// Because the validators have no recorded latest epoch written in the database,
// we expect that we will update all epochs from genesis up to the current epoch.
// Given the chunk size is 2 epochs per chunk, updating with current epoch == 3
// will mean that we should be updating from epoch 0 to 3, meaning chunk indices 0 and 1.
chunkIndices, err := s.determineChunksToUpdateForValidators(
ctx,
&chunkUpdateArgs{
currentEpoch: 3,
},
validators,
)
require.NoError(t, err)
sort.Slice(chunkIndices, func(i, j int) bool {
return chunkIndices[i] < chunkIndices[j]
})
require.DeepEqual(t, []uint64{0, 1}, chunkIndices)
}
func Test_applyAttestationForValidator_MinSpanChunk(t *testing.T) {
ctx := context.Background()
slasherDB := dbtest.SetupSlasherDB(t)
params := DefaultParams()
srv := &Service{
params: params,
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
},
}
// We initialize an empty chunks slice.
chunk := EmptyMinSpanChunksSlice(params)
chunkIdx := uint64(0)
currentEpoch := types.Epoch(3)
validatorIdx := types.ValidatorIndex(0)
args := &chunkUpdateArgs{
chunkIndex: chunkIdx,
currentEpoch: currentEpoch,
}
chunksByChunkIdx := map[uint64]Chunker{
chunkIdx: chunk,
}
// We apply attestation with (source 1, target 2) for our validator.
source := types.Epoch(1)
target := types.Epoch(2)
att := createAttestationWrapper(t, source, target, nil, nil)
slashing, err := srv.applyAttestationForValidator(
ctx,
args,
validatorIdx,
chunksByChunkIdx,
att,
)
require.NoError(t, err)
require.Equal(t, true, slashing == nil)
att.IndexedAttestation.AttestingIndices = []uint64{uint64(validatorIdx)}
err = slasherDB.SaveAttestationRecordsForValidators(
ctx,
[]*slashertypes.IndexedAttestationWrapper{att},
)
require.NoError(t, err)
// Next, we apply an attestation with (source 0, target 3) and
// expect a slashable offense to be returned.
source = types.Epoch(0)
target = types.Epoch(3)
slashableAtt := createAttestationWrapper(t, source, target, nil, nil)
slashing, err = srv.applyAttestationForValidator(
ctx,
args,
validatorIdx,
chunksByChunkIdx,
slashableAtt,
)
require.NoError(t, err)
require.NotNil(t, slashing)
}
func Test_applyAttestationForValidator_MaxSpanChunk(t *testing.T) {
ctx := context.Background()
slasherDB := dbtest.SetupSlasherDB(t)
params := DefaultParams()
srv := &Service{
params: params,
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
},
}
// We initialize an empty chunks slice.
chunk := EmptyMaxSpanChunksSlice(params)
chunkIdx := uint64(0)
currentEpoch := types.Epoch(3)
validatorIdx := types.ValidatorIndex(0)
args := &chunkUpdateArgs{
chunkIndex: chunkIdx,
currentEpoch: currentEpoch,
}
chunksByChunkIdx := map[uint64]Chunker{
chunkIdx: chunk,
}
// We apply attestation with (source 0, target 3) for our validator.
source := types.Epoch(0)
target := types.Epoch(3)
att := createAttestationWrapper(t, source, target, nil, nil)
slashing, err := srv.applyAttestationForValidator(
ctx,
args,
validatorIdx,
chunksByChunkIdx,
att,
)
require.NoError(t, err)
require.Equal(t, true, slashing == nil)
att.IndexedAttestation.AttestingIndices = []uint64{uint64(validatorIdx)}
err = slasherDB.SaveAttestationRecordsForValidators(
ctx,
[]*slashertypes.IndexedAttestationWrapper{att},
)
require.NoError(t, err)
// Next, we apply an attestation with (source 1, target 2) and
// expect a slashable offense to be returned.
source = types.Epoch(1)
target = types.Epoch(2)
slashableAtt := createAttestationWrapper(t, source, target, nil, nil)
slashing, err = srv.applyAttestationForValidator(
ctx,
args,
validatorIdx,
chunksByChunkIdx,
slashableAtt,
)
require.NoError(t, err)
require.NotNil(t, slashing)
}
func Test_checkDoubleVotes_SlashableInputAttestations(t *testing.T) {
slasherDB := dbtest.SetupSlasherDB(t)
ctx := context.Background()
// For a list of input attestations, check that we can
// indeed check there could exist a double vote offense
// within the list with respect to other entries in the list.
atts := []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 0, 1, []uint64{1, 2}, []byte{1}),
createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{1}),
createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{2}), // Different signing root.
}
srv := &Service{
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
},
params: DefaultParams(),
}
prev1 := createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{1})
cur1 := createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{2})
prev2 := createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{1})
cur2 := createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{2})
wanted := []*ethpb.AttesterSlashing{
{
Attestation_1: prev1.IndexedAttestation,
Attestation_2: cur1.IndexedAttestation,
},
{
Attestation_1: prev2.IndexedAttestation,
Attestation_2: cur2.IndexedAttestation,
},
}
slashings, err := srv.checkDoubleVotes(ctx, atts)
require.NoError(t, err)
require.DeepEqual(t, wanted, slashings)
}
func Test_checkDoubleVotes_SlashableAttestationsOnDisk(t *testing.T) {
slasherDB := dbtest.SetupSlasherDB(t)
ctx := context.Background()
// For a list of input attestations, check that we can
// indeed check there could exist a double vote offense
// within the list with respect to previous entries in the db.
prevAtts := []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 0, 1, []uint64{1, 2}, []byte{1}),
createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{1}),
}
srv := &Service{
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
},
params: DefaultParams(),
}
err := slasherDB.SaveAttestationRecordsForValidators(ctx, prevAtts)
require.NoError(t, err)
prev1 := createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{1})
cur1 := createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{2})
prev2 := createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{1})
cur2 := createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{2})
wanted := []*ethpb.AttesterSlashing{
{
Attestation_1: prev1.IndexedAttestation,
Attestation_2: cur1.IndexedAttestation,
},
{
Attestation_1: prev2.IndexedAttestation,
Attestation_2: cur2.IndexedAttestation,
},
}
newAtts := []*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 0, 2, []uint64{1, 2}, []byte{2}), // Different signing root.
}
slashings, err := srv.checkDoubleVotes(ctx, newAtts)
require.NoError(t, err)
require.DeepEqual(t, wanted, slashings)
}
func Test_loadChunks_MinSpans(t *testing.T) {
testLoadChunks(t, slashertypes.MinSpan)
}
func Test_loadChunks_MaxSpans(t *testing.T) {
testLoadChunks(t, slashertypes.MaxSpan)
}
func testLoadChunks(t *testing.T, kind slashertypes.ChunkKind) {
slasherDB := dbtest.SetupSlasherDB(t)
ctx := context.Background()
// Check if the chunk at chunk index already exists in-memory.
params := DefaultParams()
s := &Service{
params: DefaultParams(),
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
},
}
// If a chunk at a chunk index does not exist, ensure it
// is initialized as an empty chunk.
var emptyChunk Chunker
if kind == slashertypes.MinSpan {
emptyChunk = EmptyMinSpanChunksSlice(params)
} else {
emptyChunk = EmptyMaxSpanChunksSlice(params)
}
chunkIdx := uint64(2)
received, err := s.loadChunks(ctx, &chunkUpdateArgs{
validatorChunkIndex: 0,
kind: kind,
}, []uint64{chunkIdx})
require.NoError(t, err)
wanted := map[uint64]Chunker{
chunkIdx: emptyChunk,
}
require.DeepEqual(t, wanted, received)
// Save chunks to disk, then load them properly from disk.
var existingChunk Chunker
if kind == slashertypes.MinSpan {
existingChunk = EmptyMinSpanChunksSlice(params)
} else {
existingChunk = EmptyMaxSpanChunksSlice(params)
}
validatorIdx := types.ValidatorIndex(0)
epochInChunk := types.Epoch(0)
targetEpoch := types.Epoch(2)
err = setChunkDataAtEpoch(
params,
existingChunk.Chunk(),
validatorIdx,
epochInChunk,
targetEpoch,
)
require.NoError(t, err)
require.DeepNotEqual(t, existingChunk, emptyChunk)
updatedChunks := map[uint64]Chunker{
2: existingChunk,
4: existingChunk,
6: existingChunk,
}
err = s.saveUpdatedChunks(
ctx,
&chunkUpdateArgs{
validatorChunkIndex: 0,
kind: kind,
},
updatedChunks,
)
require.NoError(t, err)
// Check if the retrieved chunks match what we just saved to disk.
received, err = s.loadChunks(ctx, &chunkUpdateArgs{
validatorChunkIndex: 0,
kind: kind,
}, []uint64{2, 4, 6})
require.NoError(t, err)
require.DeepEqual(t, updatedChunks, received)
}
func TestService_processQueuedAttestations(t *testing.T) {
hook := logTest.NewGlobal()
slasherDB := dbtest.SetupSlasherDB(t)
beaconState, err := util.NewBeaconState()
require.NoError(t, err)
slot, err := slots.EpochStart(1)
require.NoError(t, err)
require.NoError(t, beaconState.SetSlot(slot))
mockChain := &mock.ChainService{
State: beaconState,
Slot: &slot,
}
s := &Service{
params: DefaultParams(),
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
HeadStateFetcher: mockChain,
},
attsQueue: newAttestationsQueue(),
}
s.attsQueue.extend([]*slashertypes.IndexedAttestationWrapper{
createAttestationWrapper(t, 0, 1, []uint64{0, 1} /* indices */, nil /* signingRoot */),
})
ctx, cancel := context.WithCancel(context.Background())
tickerChan := make(chan types.Slot)
exitChan := make(chan struct{})
go func() {
s.processQueuedAttestations(ctx, tickerChan)
exitChan <- struct{}{}
}()
// Send a value over the ticker.
tickerChan <- 1
cancel()
<-exitChan
assert.LogsContain(t, hook, "New slot, processing queued")
}
func BenchmarkCheckSlashableAttestations(b *testing.B) {
slasherDB := dbtest.SetupSlasherDB(b)
beaconState, err := util.NewBeaconState()
require.NoError(b, err)
slot := types.Slot(0)
mockChain := &mock.ChainService{
State: beaconState,
Slot: &slot,
}
s := &Service{
params: DefaultParams(),
serviceCfg: &ServiceConfig{
Database: slasherDB,
StateNotifier: &mock.MockStateNotifier{},
HeadStateFetcher: mockChain,
},
attsQueue: newAttestationsQueue(),
}
b.Run("1 attestation 1 validator", func(b *testing.B) {
b.ResetTimer()
runAttestationsBenchmark(b, s, 1, 1 /* validator */)
})
b.Run("1 attestation 100 validators", func(b *testing.B) {
b.ResetTimer()
runAttestationsBenchmark(b, s, 1, 100 /* validator */)
})
b.Run("1 attestation 1000 validators", func(b *testing.B) {
b.ResetTimer()
runAttestationsBenchmark(b, s, 1, 1000 /* validator */)
})
b.Run("100 attestations 1 validator", func(b *testing.B) {
b.ResetTimer()
runAttestationsBenchmark(b, s, 100, 1 /* validator */)
})
b.Run("100 attestations 100 validators", func(b *testing.B) {
b.ResetTimer()
runAttestationsBenchmark(b, s, 100, 100 /* validator */)
})
b.Run("100 attestations 1000 validators", func(b *testing.B) {
b.ResetTimer()
runAttestationsBenchmark(b, s, 100, 1000 /* validator */)
})
b.Run("1000 attestations 1 validator", func(b *testing.B) {
b.ResetTimer()
runAttestationsBenchmark(b, s, 1000, 1 /* validator */)
})
b.Run("1000 attestations 100 validators", func(b *testing.B) {
b.ResetTimer()
runAttestationsBenchmark(b, s, 1000, 100 /* validator */)
})
b.Run("1000 attestations 1000 validators", func(b *testing.B) {
b.ResetTimer()
runAttestationsBenchmark(b, s, 1000, 1000 /* validator */)
})
}
func runAttestationsBenchmark(b *testing.B, s *Service, numAtts, numValidators uint64) {
indices := make([]uint64, numValidators)
for i := uint64(0); i < numValidators; i++ {
indices[i] = i
}
atts := make([]*slashertypes.IndexedAttestationWrapper, numAtts)
for i := uint64(0); i < numAtts; i++ {
source := types.Epoch(i)
target := types.Epoch(i + 1)
signingRoot := [32]byte{}
copy(signingRoot[:], fmt.Sprintf("%d", i))
atts[i] = createAttestationWrapper(
b,
source,
target, /* target */
indices, /* indices */
signingRoot[:], /* signingRoot */
)
}
for i := 0; i < b.N; i++ {
numEpochs := numAtts
totalSeconds := numEpochs * uint64(params.BeaconConfig().SlotsPerEpoch) * params.BeaconConfig().SecondsPerSlot
genesisTime := time.Now().Add(-time.Second * time.Duration(totalSeconds))
s.genesisTime = genesisTime
_, err := s.checkSlashableAttestations(context.Background(), atts)
require.NoError(b, err)
}
}
func createAttestationWrapper(t testing.TB, source, target types.Epoch, indices []uint64, signingRoot []byte) *slashertypes.IndexedAttestationWrapper {
data := &ethpb.AttestationData{
BeaconBlockRoot: bytesutil.PadTo(signingRoot, 32),
Source: &ethpb.Checkpoint{
Epoch: source,
Root: params.BeaconConfig().ZeroHash[:],
},
Target: &ethpb.Checkpoint{
Epoch: target,
Root: params.BeaconConfig().ZeroHash[:],
},
}
signRoot, err := data.HashTreeRoot()
if err != nil {
t.Fatal(err)
}
return &slashertypes.IndexedAttestationWrapper{
IndexedAttestation: &ethpb.IndexedAttestation{
AttestingIndices: indices,
Data: data,
Signature: params.BeaconConfig().EmptySignature[:],
},
SigningRoot: signRoot,
}
}