The core protocol of WoopChain
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woop/staking/slash/double-sign_test.go

552 lines
19 KiB

package slash
import (
"encoding/hex"
"fmt"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/rlp"
"github.com/harmony-one/bls/ffi/go/bls"
"github.com/harmony-one/harmony/block"
"github.com/harmony-one/harmony/common/denominations"
"github.com/harmony-one/harmony/core/state"
"github.com/harmony-one/harmony/core/types"
common2 "github.com/harmony-one/harmony/internal/common"
"github.com/harmony-one/harmony/internal/params"
"github.com/harmony-one/harmony/numeric"
"github.com/harmony-one/harmony/shard"
"github.com/harmony-one/harmony/staking/effective"
staking "github.com/harmony-one/harmony/staking/types"
)
var (
commonCommission = staking.Commission{
CommissionRates: staking.CommissionRates{
Rate: numeric.MustNewDecFromStr("0.167983520183826780"),
MaxRate: numeric.MustNewDecFromStr("0.179184469782137200"),
MaxChangeRate: numeric.MustNewDecFromStr("0.152212761523253600"),
},
UpdateHeight: big.NewInt(10),
}
commonDescr = staking.Description{
Name: "someoneA",
Identity: "someoneB",
Website: "someoneC",
SecurityContact: "someoneD",
Details: "someoneE",
}
fiveKOnes = new(big.Int).Mul(big.NewInt(5000), big.NewInt(1e18))
tenKOnes = new(big.Int).Mul(big.NewInt(10000), big.NewInt(1e18))
onePointNineSixKOnes = new(big.Int).Mul(big.NewInt(19600), big.NewInt(1e18))
twentyKOnes = new(big.Int).Mul(big.NewInt(20000), big.NewInt(1e18))
twentyfiveKOnes = new(big.Int).Mul(big.NewInt(25000), big.NewInt(1e18))
thirtyKOnes = new(big.Int).Mul(big.NewInt(30000), big.NewInt(1e18))
hundredKOnes = new(big.Int).Mul(big.NewInt(1000000), big.NewInt(1e18))
)
const (
// ballot A hex values
signerABLSPublicHex = "be23bc3c93fe14a25f3533" +
"feee1cff1c60706845a4907" +
"c5df58bc19f5d1760bfff06fe7c9d1f596b18fdf529e0508e0a"
signerAHeaderHashHex = "0x68bf572c03e36b4b7a4f268797d18" +
"7027b288bc69725084bab5bfe6214cb8ddf"
signerABLSSignature = "ab14e519485b70d8af76ae83205" +
"290792d679a8a11eb9a12d21787cc0b73" +
"96e340d88b2a0c39888d0c9cec1" +
"2c4a09b06b2eec3e851f08f3070f3" +
"804b35fe4a2033725f073623e3870756141ebc" +
"2a6495478930c428f6e6b25f292dab8552d30c"
// ballot B hex values
signerBBLSPublicHex = "be23bc3c93fe14a25f3533" +
"feee1cff1c60706845a490" +
"7c5df58bc19f5d1760bfff" +
"06fe7c9d1f596b18fdf529e0508e0a"
signerBHeaderHashHex = "0x1dbf572c03e36b4b7a4f268797d187" +
"027b288bc69725084bab5bfe6214cb8ddf"
signerBBLSSignature = "0894d55a541a90ada11535866e5a848d9d6a2b5c30" +
"932a95f48133f886140cefbe4d690eddd0540d246df1fec" +
"8b4f719ad9de0bc822f0a1bf70e78b321a5e4462ba3e3efd" +
"cd24c21b9cb24ed6b26f02785a2cdbd168696c5f4a49b6c00f00994"
// RLP encoded header
proposalHeaderRLPBytes = "f9039187486d6e79546764827633f90383a080532768867d8c1a96" +
"6ae9df80d4efc9a9a83559b0e2d13b2aa819a6a7627c7294" +
"6911b75b2560be9a8f71164a33086be4511fc99aa0eb514ec3bc1" +
"8e67ad7d9641768b7a9b9655ff78e54970465aeb037c2d81c5987a05" +
"6e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc0016" +
"22fb5e363b421a056e81f171bcc55a6ff8345e692c0f86e5b" +
"48e01b996cadc001622fb5e363b421a056e81f171bcc55a6" +
"ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421a05" +
"6e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc0" +
"01622fb5e363b421b901000000000000000000000000000" +
"00000000000000000000000000000000000000000000000000" +
"00000000000000000000000000000000000000000000000000000" +
"000000000000000000000000000000000000000000000000000000" +
"00000000000000000000000000000000000000000000000000000000" +
"000000000000000000000000000000000000000000000000000000000" +
"0000000000000000000000000000000000000000000000000000000" +
"0000000000000000000000000000000000000000000000000000" +
"00000000000000000000000000000000000000000000000000000" +
"00000000000000000000000000000000000000000000000000000" +
"00002383a9235180845e4c602680a00000000000000000000000" +
"000000000000000000000000000000000000000000230680b860c" +
"4db93981d5870f0f77bb8487dde189e4579e3866ae3b598fbed0f5" +
"d87e53d21a039e427d2a206eeca4ff1f1fab2ed0d2171b9c1f12" +
"1e42c1a1456e6e1ba4c5e2fb3ddda5d34873bcdf01f14d1da1bc5" +
"0e70dc6f0bdfda3f36f9dafe1e29880e7fb8807b05ee6062476f5a43" +
"6b29876d726491fb76bfe2cf8f6d9e3a7361e0ca95bd66c4ef4593c" +
"2ac616c4ca171af74a93f5ef9e4d1b74421e789f07e0a36e4b00b7a9" +
"13fb6a296e20ee4dcd2d74088ea9711b8b7693af18d3f6ab925d26a0b" +
"e30d8899f18e4b7f9e8c6937e78863b828fa172e8edef106cca814294" +
"eee7146eec7018080b88bf889f887a0a1cc8366aa9c8acac219a229b2" +
"eb88deee3bc9b133baa610bd88af294422ab0020b860e5a234c8bce79" +
"24c4f934edf7ce9f8f4b10d61d1e72becdda95c5fb3195598cc9ae334" +
"8a00c493fb77a87a094dbf08130c3f93793337be78167b8b241d7ef9e" +
"1fab1f8097dda339a6ca2737c291d8a7733c9b5b540ea30544c46" +
"a0426a34f60d3f010580"
// trailing bech32 info
reporterBech32 = "one1pdv9lrdwl0rg5vglh4xtyrv3wjk3wsqket7zxy"
offenderBech32 = "one1zyxauxquys60dk824p532jjdq753pnsenrgmef"
// some rando delegator
randoDelegatorBech32 = "one1nqevvacj3y5ltuef05my4scwy5wuqteur72jk5"
// rest of the committee
commK1 = "65f55eb3052f9e9f632b2923be594ba77c55543f5c58ee1454b9cfd658d25e06373b0f7d42a19c84768139ea294f6204"
commK2 = "02c8ff0b88f313717bc3a627d2f8bb172ba3ad3bb9ba3ecb8eed4b7c878653d3d4faf769876c528b73f343967f74a917"
commK3 = "e751ec995defe4931273aaebcb2cd14bf37e629c554a57d3f334c37881a34a6188a93e76113c55ef3481da23b7d7ab09"
commK4 = "2d61379e44a772e5757e27ee2b3874254f56073e6bd226eb8b160371cc3c18b8c4977bd3dcb71fd57dc62bf0e143fd08"
commK5 = "86dc2fdc2ceec18f6923b99fd86a68405c132e1005cf1df72dca75db0adfaeb53d201d66af37916d61f079f34f21fb96"
commK6 = "95117937cd8c09acd2dfae847d74041a67834ea88662a7cbed1e170350bc329e53db151e5a0ef3e712e35287ae954818"
// double signing info
doubleSignShardID = 0
doubleSignEpoch = 3
doubleSignBlockNumber = 37
doubleSignViewID = 38
doubleSignUnixNano = 1582049233802498300
// validator creation parameters
lastEpochInComm = 5
creationHeight = 33
// slash rates to test double signing
// from 0 percent to 100 percent slash rate, 1 percent increment per testSlashRate
numSlashRatesToTest = 101
)
type scenario struct {
snapshot, current *staking.ValidatorWrapper
slashRate float64
result *Application
}
func defaultFundingScenario() *scenario {
return &scenario{
snapshot: nil,
current: nil,
slashRate: 0.02,
result: nil,
}
}
var (
scenarioTwoPercent = defaultFundingScenario()
scenarioEightyPercent = defaultFundingScenario()
doubleSignScenarios = make([]*scenario, numSlashRatesToTest)
)
func totalSlashedExpected(slashRate float64) *big.Int {
t := int64(50000 * slashRate)
res := new(big.Int).Mul(big.NewInt(t), big.NewInt(denominations.One))
return res
//return big.NewInt(int64(slashRate * 50000 * denominations.One)) // 5.0 * denominations.One
}
func totalSnitchRewardExpected(slashRate float64) *big.Int {
t := int64(25000 * slashRate)
res := new(big.Int).Mul(big.NewInt(t), big.NewInt(denominations.One))
return res
//return big.NewInt(int64(slashRate * 2.5 * denominations.One))
}
func init() {
{
s := scenarioTwoPercent
s.slashRate = 0.02
s.result = &Application{
// totalSlashedExpected
TotalSlashed: totalSlashedExpected(s.slashRate), // big.NewInt(int64(s.slashRate * 5.0 * denominations.One)),
// totalSnitchRewardExpected
TotalSnitchReward: totalSnitchRewardExpected(s.slashRate), // big.NewInt(int64(s.slashRate * 2.5 * denominations.One)),
}
s.snapshot, s.current = s.defaultValidatorPair(s.defaultDelegationPair())
}
{
s := scenarioEightyPercent
s.slashRate = 0.80
s.result = &Application{
// totalSlashedExpected
TotalSlashed: totalSlashedExpected(s.slashRate), // big.NewInt(int64(s.slashRate * 5.0 * denominations.One)),
// totalSnitchRewardExpected
TotalSnitchReward: totalSnitchRewardExpected(s.slashRate), // big.NewInt(int64(s.slashRate * 2.5 * denominations.One)),
}
s.snapshot, s.current = s.defaultValidatorPair(s.defaultDelegationPair())
}
// Testing slash rate from 0% to 100% with increment being 100.0 / numSlashRatesToTest.
// numSlashRatesToTest=100, so it's 1 percent step size in between test slash rates.
testSlashRateStepSize := numeric.NewDec(1).
Quo(numeric.NewDec(numSlashRatesToTest - 1)) // -1 since starting from 0% slash rate edge case
slashRate := numeric.NewDec(0)
for i := 0; i < numSlashRatesToTest; i++ {
s := defaultFundingScenario()
s.slashRate = float64(slashRate.Quo(numeric.NewDec(100)).TruncateInt64())
s.result = &Application{
TotalSlashed: totalSlashedExpected(s.slashRate),
TotalSnitchReward: totalSnitchRewardExpected(s.slashRate),
}
s.snapshot, s.current = s.defaultValidatorPair(s.defaultDelegationPair())
doubleSignScenarios[i] = s
slashRate = slashRate.Add(testSlashRateStepSize)
}
}
var (
signerA, signerB = &bls.PublicKey{}, &bls.PublicKey{}
hashA, hashB = common.Hash{}, common.Hash{}
reporterAddr, offenderAddr = common.Address{}, common.Address{}
randoDel = common.Address{}
header = block.Header{}
subCommittee = []shard.BLSPublicKey{}
doubleSignEpochBig = big.NewInt(doubleSignEpoch)
unit = func() interface{} {
// Ballot A setup
signerA.DeserializeHexStr(signerABLSPublicHex)
headerHashA, _ := hex.DecodeString(signerAHeaderHashHex)
hashA = common.BytesToHash(headerHashA)
// Ballot B setup
signerB.DeserializeHexStr(signerBBLSPublicHex)
headerHashB, _ := hex.DecodeString(signerBHeaderHashHex)
hashB = common.BytesToHash(headerHashB)
// address setup
reporterAddr, _ = common2.Bech32ToAddress(reporterBech32)
offenderAddr, _ = common2.Bech32ToAddress(offenderBech32)
randoDel, _ = common2.Bech32ToAddress(randoDelegatorBech32)
headerData, err := hex.DecodeString(proposalHeaderRLPBytes)
if err != nil {
panic("test case has bad input")
}
if err := rlp.DecodeBytes(headerData, &header); err != nil {
panic("test case has bad input")
}
for _, hexK := range [...]string{
commK1, commK2, commK3, commK4, commK5, commK6,
} {
k := &bls.PublicKey{}
k.DeserializeHexStr(hexK)
subCommittee = append(subCommittee, *shard.FromLibBLSPublicKeyUnsafe(k))
}
return nil
}()
blsWrapA, blsWrapB = *shard.FromLibBLSPublicKeyUnsafe(signerA),
*shard.FromLibBLSPublicKeyUnsafe(signerB)
)
func (s *scenario) defaultValidatorPair(
delegationsSnapshot, delegationsCurrent staking.Delegations,
) (
*staking.ValidatorWrapper, *staking.ValidatorWrapper,
) {
validatorSnapshot := &staking.ValidatorWrapper{
Validator: staking.Validator{
Address: offenderAddr,
SlotPubKeys: []shard.BLSPublicKey{blsWrapA},
LastEpochInCommittee: big.NewInt(lastEpochInComm),
MinSelfDelegation: tenKOnes, //new(big.Int).SetUint64(1 * denominations.One),
MaxTotalDelegation: hundredKOnes, //new(big.Int).SetUint64(10 * denominations.One),
Status: effective.Active,
Commission: commonCommission,
Description: commonDescr,
CreationHeight: big.NewInt(creationHeight),
},
Delegations: delegationsSnapshot,
}
validatorCurrent := &staking.ValidatorWrapper{
Validator: staking.Validator{
Address: offenderAddr,
SlotPubKeys: []shard.BLSPublicKey{blsWrapA},
LastEpochInCommittee: big.NewInt(lastEpochInComm + 1),
MinSelfDelegation: tenKOnes, // new(big.Int).SetUint64(1 * denominations.One),
MaxTotalDelegation: hundredKOnes, // new(big.Int).SetUint64(10 * denominations.One),
Status: effective.Active,
Commission: commonCommission,
Description: commonDescr,
CreationHeight: big.NewInt(creationHeight),
},
Delegations: delegationsCurrent,
}
return validatorSnapshot, validatorCurrent
}
func (s *scenario) defaultDelegationPair() (
staking.Delegations, staking.Delegations,
) {
delegationsSnapshot := staking.Delegations{
// NOTE delegation is the validator themselves
staking.Delegation{
DelegatorAddress: offenderAddr,
Amount: twentyKOnes, // new(big.Int).SetUint64(2 * denominations.One),
Reward: common.Big0,
Undelegations: staking.Undelegations{},
},
staking.Delegation{
DelegatorAddress: randoDel,
Amount: thirtyKOnes, //new(big.Int).SetUint64(3 * denominations.One),
Reward: common.Big0,
Undelegations: staking.Undelegations{},
},
}
delegationsCurrent := staking.Delegations{
staking.Delegation{
DelegatorAddress: offenderAddr,
Amount: onePointNineSixKOnes, //new(big.Int).SetUint64(1.96 * denominations.One),
Reward: common.Big0,
Undelegations: staking.Undelegations{
staking.Undelegation{
Amount: tenKOnes, //new(big.Int).SetUint64(1 * denominations.One),
Epoch: big.NewInt(doubleSignEpoch + 2),
},
},
},
// some external delegator
staking.Delegation{
DelegatorAddress: randoDel,
Amount: fiveKOnes, //new(big.Int).SetUint64(0.5 * denominations.One),
Reward: common.Big0,
Undelegations: staking.Undelegations{
staking.Undelegation{
Amount: twentyfiveKOnes, //new(big.Int).SetUint64(2.5 * denominations.One),
Epoch: big.NewInt(doubleSignEpoch + 2),
},
},
},
}
return delegationsSnapshot, delegationsCurrent
}
func defaultSlashRecord() Record {
return Record{
Evidence: Evidence{
ConflictingVotes: ConflictingVotes{
FirstVote: Vote{
SignerPubKey: blsWrapA,
BlockHeaderHash: hashA,
Signature: common.Hex2Bytes(signerABLSSignature),
},
SecondVote: Vote{
SignerPubKey: blsWrapB,
BlockHeaderHash: hashB,
Signature: common.Hex2Bytes(signerBBLSSignature),
},
},
Moment: Moment{
Epoch: big.NewInt(doubleSignEpoch),
ShardID: doubleSignShardID,
Height: doubleSignBlockNumber,
ViewID: doubleSignViewID,
},
Offender: offenderAddr,
},
Reporter: reporterAddr,
}
}
func exampleSlashRecords() Records {
return Records{defaultSlashRecord()}
}
type mockOutSnapshotReader struct {
snapshot staking.ValidatorSnapshot
}
func (m mockOutSnapshotReader) ReadValidatorSnapshotAtEpoch(
epoch *big.Int,
addr common.Address,
) (*staking.ValidatorSnapshot, error) {
return &m.snapshot, nil
}
type mockOutChainReader struct{}
func (mockOutChainReader) CurrentBlock() *types.Block {
b := types.Block{}
b.Header().SetEpoch(doubleSignEpochBig)
return &b
}
func (mockOutChainReader) ReadShardState(epoch *big.Int) (*shard.State, error) {
return &shard.State{
Epoch: doubleSignEpochBig,
Shards: []shard.Committee{
{
ShardID: doubleSignShardID,
Slots: shard.SlotList{
shard.Slot{
EcdsaAddress: offenderAddr,
BLSPublicKey: blsWrapA,
EffectiveStake: nil,
},
},
},
},
}, nil
}
func (mockOutChainReader) Config() *params.ChainConfig {
return params.TestChainConfig
}
func TestVerify(t *testing.T) {
stateHandle := defaultStateWithAccountsApplied()
if err := Verify(
mockOutChainReader{}, stateHandle, &exampleSlashRecords()[0],
); err != nil {
// TODO
// t.Errorf("could not verify slash %s", err.Error())
}
}
func testScenario(
t *testing.T, stateHandle *state.DB, slashes Records, s *scenario,
) {
if err := stateHandle.UpdateValidatorWrapper(
offenderAddr, s.snapshot,
); err != nil {
t.Fatalf("creation of validator failed %s", err.Error())
}
stateHandle.IntermediateRoot(false)
stateHandle.Commit(false)
if err := stateHandle.UpdateValidatorWrapper(
offenderAddr, s.current,
); err != nil {
t.Fatalf("update of validator failed %s", err.Error())
}
stateHandle.IntermediateRoot(false)
stateHandle.Commit(false)
// NOTE See dump.json to see what account
// state looks like as of this point
slashResult, err := Apply(
mockOutSnapshotReader{staking.ValidatorSnapshot{s.snapshot, big.NewInt(0)}},
stateHandle,
slashes,
numeric.MustNewDecFromStr(
fmt.Sprintf("%f", s.slashRate),
),
)
if err != nil {
t.Fatalf("rate: %v, slash application failed %s", s.slashRate, err.Error())
}
if sn := slashResult.TotalSlashed; sn.Cmp(
s.result.TotalSlashed,
) != 0 {
t.Errorf(
"total slash incorrect have %v want %v",
sn,
s.result.TotalSlashed,
)
}
if sn := slashResult.TotalSnitchReward; sn.Cmp(
s.result.TotalSnitchReward,
) != 0 {
t.Errorf(
"total snitch incorrect have %v want %v",
sn,
s.result.TotalSnitchReward,
)
}
}
func defaultStateWithAccountsApplied() *state.DB {
st := ethdb.NewMemDatabase()
stateHandle, _ := state.New(common.Hash{}, state.NewDatabase(st))
for _, addr := range []common.Address{reporterAddr, offenderAddr, randoDel} {
stateHandle.CreateAccount(addr)
}
stateHandle.SetBalance(offenderAddr, big.NewInt(0).SetUint64(1994680320000000000))
stateHandle.SetBalance(randoDel, big.NewInt(0).SetUint64(1999975592000000000))
return stateHandle
}
func TestTwoPercentSlashed(t *testing.T) {
slashes := exampleSlashRecords()
stateHandle := defaultStateWithAccountsApplied()
testScenario(t, stateHandle, slashes, scenarioTwoPercent)
}
// func TestEightyPercentSlashed(t *testing.T) {
// slashes := exampleSlashRecords()
// stateHandle := defaultStateWithAccountsApplied()
// testScenario(t, stateHandle, slashes, scenarioEightyPercent)
// }
func TestDoubleSignSlashRates(t *testing.T) {
for _, scenario := range doubleSignScenarios {
slashes := exampleSlashRecords()
stateHandle := defaultStateWithAccountsApplied()
testScenario(t, stateHandle, slashes, scenario)
}
}
// Simply testing serialization / deserialization of slash records working correctly
func TestRoundTripSlashRecord(t *testing.T) {
slashes := exampleSlashRecords()
serializedA := slashes.String()
data, err := rlp.EncodeToBytes(slashes)
if err != nil {
t.Errorf("encoding slash records failed %s", err.Error())
}
roundTrip := Records{}
if err := rlp.DecodeBytes(data, &roundTrip); err != nil {
t.Errorf("decoding slash records failed %s", err.Error())
}
serializedB := roundTrip.String()
if serializedA != serializedB {
t.Error("rlp encode/decode round trip records failed")
}
}
func TestSetDifference(t *testing.T) {
setA, setB := exampleSlashRecords(), exampleSlashRecords()
additionalSlash := defaultSlashRecord()
additionalSlash.Evidence.Epoch.Add(additionalSlash.Evidence.Epoch, common.Big1)
setB = append(setB, additionalSlash)
diff := setA.SetDifference(setB)
if diff[0].Hash() != additionalSlash.Hash() {
t.Errorf("did not get set difference of slash")
}
}
// TODO bytes used for this example are stale, need to update RLP dump
// func TestApply(t *testing.T) {
// slashes := exampleSlashRecords()
// {
// stateHandle := defaultStateWithAccountsApplied()
// testScenario(t, stateHandle, slashes, scenarioRealWorldSample1())
// }
// }