static
1 year ago
parent
90e71609e0
commit
d9cb44aaa0
@ -1,391 +1,210 @@ |
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package chain |
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|
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import ( |
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"bytes" |
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"fmt" |
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"math/big" |
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"testing" |
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|
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bls_core "github.com/harmony-one/bls/ffi/go/bls" |
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"github.com/harmony-one/harmony/block" |
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"github.com/ethereum/go-ethereum/common" |
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"github.com/ethereum/go-ethereum/core/rawdb" |
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blockfactory "github.com/harmony-one/harmony/block/factory" |
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"github.com/harmony-one/harmony/consensus/engine" |
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consensus_sig "github.com/harmony-one/harmony/consensus/signature" |
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"github.com/harmony-one/harmony/common/denominations" |
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"github.com/harmony-one/harmony/core" |
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"github.com/harmony-one/harmony/core/state" |
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"github.com/harmony-one/harmony/core/vm" |
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"github.com/harmony-one/harmony/crypto/bls" |
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"github.com/harmony-one/harmony/crypto/hash" |
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"github.com/harmony-one/harmony/internal/params" |
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"github.com/harmony-one/harmony/numeric" |
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"github.com/harmony-one/harmony/shard" |
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"github.com/harmony-one/harmony/staking/effective" |
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"github.com/harmony-one/harmony/staking/slash" |
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staking "github.com/harmony-one/harmony/staking/types" |
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types2 "github.com/harmony-one/harmony/staking/types" |
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|
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"github.com/ethereum/go-ethereum/common" |
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"github.com/harmony-one/harmony/core/rawdb" |
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"github.com/harmony-one/harmony/core/state" |
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"github.com/harmony-one/harmony/core/types" |
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"github.com/harmony-one/harmony/internal/params" |
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staketest "github.com/harmony-one/harmony/staking/types/test" |
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) |
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var ( |
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bigOne = big.NewInt(1e18) |
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tenKOnes = new(big.Int).Mul(big.NewInt(10000), bigOne) |
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twentyKOnes = new(big.Int).Mul(big.NewInt(20000), bigOne) |
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fourtyKOnes = new(big.Int).Mul(big.NewInt(40000), bigOne) |
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thousandKOnes = new(big.Int).Mul(big.NewInt(1000000), bigOne) |
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) |
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const ( |
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// validator creation parameters
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doubleSignShardID = 0 |
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doubleSignEpoch = 4 |
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doubleSignBlockNumber = 37 |
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doubleSignViewID = 38 |
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creationHeight = 33 |
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lastEpochInComm = 5 |
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currentEpoch = 5 |
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numShard = 4 |
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numNodePerShard = 5 |
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type fakeReader struct { |
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core.FakeChainReader |
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} |
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offenderShard = doubleSignShardID |
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offenderShardIndex = 0 |
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) |
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func makeTestAddr(item interface{}) common.Address { |
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s := fmt.Sprintf("harmony-one-%v", item) |
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return common.BytesToAddress([]byte(s)) |
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} |
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var ( |
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doubleSignBlock1 = makeBlockForTest(doubleSignEpoch, 0) |
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doubleSignBlock2 = makeBlockForTest(doubleSignEpoch, 1) |
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validator1 = makeTestAddr("validator1") |
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validator2 = makeTestAddr("validator2") |
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delegator1 = makeTestAddr("delegator1") |
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delegator2 = makeTestAddr("delegator2") |
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delegator3 = makeTestAddr("delegator3") |
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) |
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var ( |
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keyPairs = genKeyPairs(25) |
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offIndex = offenderShard*numNodePerShard + offenderShardIndex |
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offAddr = makeTestAddress(offIndex) |
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offKey = keyPairs[offIndex] |
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offPub = offKey.Pub() |
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leaderAddr = makeTestAddress("leader") |
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) |
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// Tests that slashing works on the engine level. Since all slashing is
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// thoroughly unit tested on `double-sign_test.go`, it just makes sure that
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// slashing is applied to the state.
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func TestApplySlashing(t *testing.T) { |
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chain := makeFakeBlockChain() |
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state := makeTestStateDB() |
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header := makeFakeHeader() |
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current := makeDefaultValidatorWrapper() |
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slashes := slash.Records{makeSlashRecord()} |
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if err := state.UpdateValidatorWrapper(current.Address, current); err != nil { |
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t.Error(err) |
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} |
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if _, err := state.Commit(true); err != nil { |
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t.Error(err) |
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defaultDesc = staking.Description{ |
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Name: "SuperHero", |
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Identity: "YouWouldNotKnow", |
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Website: "Secret Website", |
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SecurityContact: "LicenseToKill", |
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Details: "blah blah blah", |
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} |
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// Inital Leader's balance: 0
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// Initial Validator's self-delegation: FourtyKOnes
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if err := applySlashes(chain, header, state, slashes); err != nil { |
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t.Error(err) |
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defaultCommissionRates = staking.CommissionRates{ |
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Rate: numeric.NewDecWithPrec(1, 1), |
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MaxRate: numeric.NewDecWithPrec(9, 1), |
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MaxChangeRate: numeric.NewDecWithPrec(5, 1), |
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} |
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) |
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expDelAmountAfterSlash := twentyKOnes |
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expRewardToBeneficiary := tenKOnes |
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if current.Delegations[0].Amount.Cmp(expDelAmountAfterSlash) != 0 { |
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t.Errorf("Slashing was not applied properly to validator: %v/%v", expDelAmountAfterSlash, current.Delegations[0].Amount) |
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func (cr *fakeReader) ReadValidatorList() ([]common.Address, error) { |
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return []common.Address{validator1, validator2}, nil |
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} |
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beneficiaryBalanceAfterSlash := state.GetBalance(leaderAddr) |
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if beneficiaryBalanceAfterSlash.Cmp(expRewardToBeneficiary) != 0 { |
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t.Errorf("Slashing reward was not added properly to beneficiary: %v/%v", expRewardToBeneficiary, beneficiaryBalanceAfterSlash) |
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} |
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func getDatabase() *state.DB { |
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database := rawdb.NewMemoryDatabase() |
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gspec := core.Genesis{Factory: blockfactory.ForTest} |
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genesis := gspec.MustCommit(database) |
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chain, _ := core.NewBlockChain(database, nil, nil, nil, vm.Config{}, nil) |
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db, _ := chain.StateAt(genesis.Root()) |
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return db |
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} |
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//
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// Make slash record for testing
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//
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func generateBLSKeyAndSig() (bls.SerializedPublicKey, bls.SerializedSignature) { |
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blsPriv := bls.RandPrivateKey() |
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blsPub := blsPriv.GetPublicKey() |
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msgHash := hash.Keccak256([]byte(staking.BLSVerificationStr)) |
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sig := blsPriv.SignHash(msgHash) |
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func makeSlashRecord() slash.Record { |
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return slash.Record{ |
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Evidence: slash.Evidence{ |
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ConflictingVotes: slash.ConflictingVotes{ |
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FirstVote: makeVoteData(offKey, doubleSignBlock1), |
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SecondVote: makeVoteData(offKey, doubleSignBlock2), |
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}, |
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Moment: slash.Moment{ |
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Epoch: big.NewInt(doubleSignEpoch), |
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ShardID: doubleSignShardID, |
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Height: doubleSignBlockNumber, |
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ViewID: doubleSignViewID, |
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}, |
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Offender: offAddr, |
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}, |
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Reporter: makeTestAddress("reporter"), |
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} |
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} |
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//
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// Make validator for testing
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//
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var shardPub bls.SerializedPublicKey |
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copy(shardPub[:], blsPub.Serialize()) |
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func makeDefaultValidatorWrapper() *staking.ValidatorWrapper { |
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pubKeys := []bls.SerializedPublicKey{offPub} |
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v := defaultTestValidator(pubKeys) |
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var shardSig bls.SerializedSignature |
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copy(shardSig[:], sig.Serialize()) |
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ds := staking.Delegations{} |
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ds = append(ds, staking.Delegation{ |
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DelegatorAddress: offAddr, |
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Amount: new(big.Int).Set(fourtyKOnes), |
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}) |
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return &staking.ValidatorWrapper{ |
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Validator: v, |
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Delegations: ds, |
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} |
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return shardPub, shardSig |
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} |
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func defaultTestValidator(pubKeys []bls.SerializedPublicKey) staking.Validator { |
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comm := staking.Commission{ |
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CommissionRates: staking.CommissionRates{ |
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Rate: numeric.MustNewDecFromStr("0.167983520183826780"), |
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MaxRate: numeric.MustNewDecFromStr("0.179184469782137200"), |
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MaxChangeRate: numeric.MustNewDecFromStr("0.152212761523253600"), |
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func sampleWrapper(address common.Address) *staking.ValidatorWrapper { |
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pub, _ := generateBLSKeyAndSig() |
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v := staking.Validator{ |
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Address: address, |
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SlotPubKeys: []bls.SerializedPublicKey{pub}, |
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LastEpochInCommittee: new(big.Int), |
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MinSelfDelegation: staketest.DefaultMinSelfDel, |
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MaxTotalDelegation: staketest.DefaultMaxTotalDel, |
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Commission: staking.Commission{ |
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CommissionRates: defaultCommissionRates, |
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UpdateHeight: big.NewInt(100), |
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}, |
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UpdateHeight: big.NewInt(10), |
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} |
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desc := staking.Description{ |
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Name: "someoneA", |
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Identity: "someoneB", |
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Website: "someoneC", |
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SecurityContact: "someoneD", |
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Details: "someoneE", |
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} |
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return staking.Validator{ |
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Address: offAddr, |
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SlotPubKeys: pubKeys, |
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LastEpochInCommittee: big.NewInt(lastEpochInComm), |
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MinSelfDelegation: new(big.Int).Set(tenKOnes), |
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MaxTotalDelegation: new(big.Int).Set(thousandKOnes), |
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Status: effective.Active, |
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Commission: comm, |
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Description: desc, |
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CreationHeight: big.NewInt(creationHeight), |
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} |
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} |
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//
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// Make commitee for testing
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//
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func makeDefaultCommittee() shard.State { |
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epoch := big.NewInt(doubleSignEpoch) |
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maker := newShardSlotMaker(keyPairs) |
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sstate := shard.State{ |
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Epoch: epoch, |
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Shards: make([]shard.Committee, 0, int(numShard)), |
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} |
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for sid := uint32(0); sid != numNodePerShard; sid++ { |
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sstate.Shards = append(sstate.Shards, makeShardBySlotMaker(sid, maker)) |
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} |
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return sstate |
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} |
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type shardSlotMaker struct { |
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kps []blsKeyPair |
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i int |
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Description: defaultDesc, |
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CreationHeight: big.NewInt(100), |
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} |
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func makeShardBySlotMaker(shardID uint32, maker shardSlotMaker) shard.Committee { |
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cmt := shard.Committee{ |
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ShardID: shardID, |
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Slots: make(shard.SlotList, 0, numNodePerShard), |
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} |
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for nid := 0; nid != numNodePerShard; nid++ { |
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cmt.Slots = append(cmt.Slots, maker.makeSlot()) |
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} |
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return cmt |
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} |
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func newShardSlotMaker(kps []blsKeyPair) shardSlotMaker { |
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return shardSlotMaker{kps, 0} |
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} |
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func (maker *shardSlotMaker) makeSlot() shard.Slot { |
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s := shard.Slot{ |
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EcdsaAddress: makeTestAddress(maker.i), |
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BLSPublicKey: maker.kps[maker.i].Pub(), // Yes, will panic when not enough kps
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} |
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maker.i++ |
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return s |
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} |
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//
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// State DB for testing
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//
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func makeTestStateDB() *state.DB { |
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db := state.NewDatabase(rawdb.NewMemoryDatabase()) |
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sdb, err := state.New(common.Hash{}, db, nil) |
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if err != nil { |
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panic(err) |
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} |
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err = sdb.UpdateValidatorWrapper(offAddr, makeDefaultValidatorWrapper()) |
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if err != nil { |
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panic(err) |
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} |
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return sdb |
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} |
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//
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// BLS keys for testing
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//
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type blsKeyPair struct { |
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pri *bls_core.SecretKey |
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pub *bls_core.PublicKey |
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} |
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func genKeyPairs(size int) []blsKeyPair { |
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kps := make([]blsKeyPair, 0, size) |
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for i := 0; i != size; i++ { |
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kps = append(kps, genKeyPair()) |
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} |
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return kps |
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} |
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func genKeyPair() blsKeyPair { |
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pri := bls.RandPrivateKey() |
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pub := pri.GetPublicKey() |
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return blsKeyPair{ |
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pri: pri, |
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pub: pub, |
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// ds := staking.Delegations{
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// staking.NewDelegation(address, big.NewInt(0)),
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// }
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w := &staking.ValidatorWrapper{ |
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Validator: v, |
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BlockReward: big.NewInt(0), |
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} |
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w.Counters.NumBlocksSigned = common.Big0 |
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w.Counters.NumBlocksToSign = common.Big0 |
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return w |
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} |
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func TestPruneStaleStakingData(t *testing.T) { |
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blockFactory := blockfactory.ForTest |
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header := blockFactory.NewHeader(common.Big0) // epoch
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chain := fakeReader{core.FakeChainReader{InternalConfig: params.LocalnetChainConfig}} |
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db := getDatabase() |
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// now make the two wrappers and store them
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wrapper := sampleWrapper(validator1) |
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wrapper.Status = effective.Inactive |
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wrapper.Delegations = staking.Delegations{ |
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staking.NewDelegation(wrapper.Address, big.NewInt(0)), |
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staking.NewDelegation(delegator1, big.NewInt(0)), |
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staking.NewDelegation(delegator2, big.NewInt(0)), |
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staking.NewDelegation(delegator3, new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(100))), |
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} |
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if err := wrapper.Delegations[3].Undelegate( |
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big.NewInt(2), new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(100)), nil, |
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); err != nil { |
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t.Fatalf("Got error %v", err) |
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} |
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if wrapper.Delegations[3].Amount.Cmp(common.Big0) != 0 { |
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t.Fatalf("Expected 0 delegation but got %v", wrapper.Delegations[3].Amount) |
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} |
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if err := db.UpdateValidatorWrapper(wrapper.Address, wrapper); err != nil { |
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t.Fatalf("Got error %v", err) |
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} |
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wrapper = sampleWrapper(validator2) |
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wrapper.Status = effective.Active |
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wrapper.Delegations = staking.Delegations{ |
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staking.NewDelegation(wrapper.Address, new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(10000))), |
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staking.NewDelegation(delegator1, new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(100))), |
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staking.NewDelegation(delegator2, big.NewInt(0)), |
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staking.NewDelegation(delegator3, big.NewInt(0)), |
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staking.NewDelegation(validator1, big.NewInt(0)), |
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} |
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wrapper.Delegations[3].Reward = common.Big257 |
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if err := db.UpdateValidatorWrapper(wrapper.Address, wrapper); err != nil { |
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t.Fatalf("Got error %v", err) |
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} |
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// we expect
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// (1) validator1 to show up with validator2 only (and not validator1 where the delegation is 0)
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// (2) delegator1 to show up with validator1 only (validator2 has amount)
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// (3) delegator2 to show up with both validator1 and validator2
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// (4) delegator3 to show up with neither validator1 (undelegation) nor validator2 (reward)
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delegationsToRemove := make(map[common.Address][]common.Address, 0) |
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if err := pruneStaleStakingData(&chain, header, db, delegationsToRemove); err != nil { |
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t.Fatalf("Got error %v", err) |
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} |
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if toRemove, ok := delegationsToRemove[validator1]; ok { |
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if len(toRemove) != 1 { |
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t.Errorf("Unexpected # of removals for validator1 %d", len(toRemove)) |
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} |
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if len(toRemove) > 0 { |
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for _, validatorAddress := range toRemove { |
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if bytes.Equal(validatorAddress.Bytes(), validator1.Bytes()) { |
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t.Errorf("Found validator1 being removed from validator1's delegations") |
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} |
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} |
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} |
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} |
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if toRemove, ok := delegationsToRemove[delegator1]; ok { |
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if len(toRemove) != 1 { |
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t.Errorf("Unexpected # of removals for delegator1 %d", len(toRemove)) |
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} |
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if len(toRemove) > 0 { |
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for _, validatorAddress := range toRemove { |
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if !bytes.Equal(validatorAddress.Bytes(), validator1.Bytes()) { |
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t.Errorf("Unexpected removal for delegator1; validator1 %s, validator2 %s, validatorAddress %s", |
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validator1.Hex(), |
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validator2.Hex(), |
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validatorAddress.Hex(), |
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) |
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} |
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} |
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func (kp blsKeyPair) Pub() bls.SerializedPublicKey { |
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var pub bls.SerializedPublicKey |
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copy(pub[:], kp.pub.Serialize()) |
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return pub |
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} |
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func (kp blsKeyPair) Sign(block *types.Block) []byte { |
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chain := &fakeBlockChain{config: *params.LocalnetChainConfig} |
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msg := consensus_sig.ConstructCommitPayload(chain.Config(), block.Epoch(), block.Hash(), |
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block.Number().Uint64(), block.Header().ViewID().Uint64()) |
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sig := kp.pri.SignHash(msg) |
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return sig.Serialize() |
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} |
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//
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// Mock blockchain for testing
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//
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type fakeBlockChain struct { |
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config params.ChainConfig |
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currentBlock types.Block |
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superCommittee shard.State |
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snapshots map[common.Address]staking.ValidatorWrapper |
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} |
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func makeFakeBlockChain() *fakeBlockChain { |
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return &fakeBlockChain{ |
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config: *params.LocalnetChainConfig, |
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currentBlock: *makeBlockForTest(currentEpoch, 0), |
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superCommittee: makeDefaultCommittee(), |
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snapshots: make(map[common.Address]staking.ValidatorWrapper), |
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if toRemove, ok := delegationsToRemove[delegator2]; ok { |
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if len(toRemove) != 2 { |
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t.Errorf("Unexpected # of removals for delegator2 %d", len(toRemove)) |
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} |
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if len(toRemove) > 0 { |
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for _, validatorAddress := range toRemove { |
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if !(bytes.Equal(validatorAddress.Bytes(), validator1.Bytes()) || |
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bytes.Equal(validatorAddress.Bytes(), validator2.Bytes())) { |
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t.Errorf("Unexpected removal for delegator2; validator1 %s, validator2 %s, validatorAddress %s", |
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validator1.Hex(), |
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validator2.Hex(), |
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validatorAddress.Hex(), |
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) |
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} |
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func makeBlockForTest(epoch int64, index int) *types.Block { |
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h := blockfactory.NewTestHeader() |
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h.SetEpoch(big.NewInt(epoch)) |
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h.SetNumber(big.NewInt(doubleSignBlockNumber)) |
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h.SetViewID(big.NewInt(doubleSignViewID)) |
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h.SetRoot(common.BigToHash(big.NewInt(int64(index)))) |
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return types.NewBlockWithHeader(h) |
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} |
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func (bc *fakeBlockChain) CurrentBlock() *types.Block { |
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return &bc.currentBlock |
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} |
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func (bc *fakeBlockChain) CurrentHeader() *block.Header { |
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return bc.currentBlock.Header() |
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} |
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func (bc *fakeBlockChain) GetBlock(hash common.Hash, number uint64) *types.Block { return nil } |
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func (bc *fakeBlockChain) GetHeader(hash common.Hash, number uint64) *block.Header { return nil } |
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func (bc *fakeBlockChain) GetHeaderByHash(hash common.Hash) *block.Header { return nil } |
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func (bc *fakeBlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts { return nil } |
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func (bc *fakeBlockChain) ContractCode(hash common.Hash) ([]byte, error) { return []byte{}, nil } |
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func (bc *fakeBlockChain) ValidatorCode(hash common.Hash) ([]byte, error) { return []byte{}, nil } |
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func (bc *fakeBlockChain) ShardID() uint32 { return 0 } |
||||
func (bc *fakeBlockChain) ReadShardState(epoch *big.Int) (*shard.State, error) { return nil, nil } |
||||
func (bc *fakeBlockChain) TrieNode(hash common.Hash) ([]byte, error) { return []byte{}, nil } |
||||
func (bc *fakeBlockChain) WriteCommitSig(blockNum uint64, lastCommits []byte) error { return nil } |
||||
func (bc *fakeBlockChain) GetHeaderByNumber(number uint64) *block.Header { return nil } |
||||
func (bc *fakeBlockChain) ReadValidatorList() ([]common.Address, error) { return nil, nil } |
||||
func (bc *fakeBlockChain) ReadCommitSig(blockNum uint64) ([]byte, error) { return nil, nil } |
||||
func (bc *fakeBlockChain) ReadBlockRewardAccumulator(uint64) (*big.Int, error) { return nil, nil } |
||||
func (bc *fakeBlockChain) ValidatorCandidates() []common.Address { return nil } |
||||
func (cr *fakeBlockChain) ReadValidatorInformationAtState(addr common.Address, state *state.DB) (*staking.ValidatorWrapper, error) { |
||||
return nil, nil |
||||
} |
||||
func (bc *fakeBlockChain) ReadValidatorSnapshotAtEpoch(epoch *big.Int, offender common.Address) (*types2.ValidatorSnapshot, error) { |
||||
return &types2.ValidatorSnapshot{ |
||||
Validator: makeDefaultValidatorWrapper(), |
||||
Epoch: epoch, |
||||
}, nil |
||||
} |
||||
func (bc *fakeBlockChain) ReadValidatorInformation(addr common.Address) (*staking.ValidatorWrapper, error) { |
||||
return nil, nil |
||||
} |
||||
func (bc *fakeBlockChain) Config() *params.ChainConfig { |
||||
return params.LocalnetChainConfig |
||||
} |
||||
func (cr *fakeBlockChain) StateAt(root common.Hash) (*state.DB, error) { |
||||
return nil, nil |
||||
} |
||||
func (bc *fakeBlockChain) ReadValidatorSnapshot(addr common.Address) (*staking.ValidatorSnapshot, error) { |
||||
return nil, nil |
||||
} |
||||
func (bc *fakeBlockChain) ReadValidatorStats(addr common.Address) (*staking.ValidatorStats, error) { |
||||
return nil, nil |
||||
} |
||||
func (bc *fakeBlockChain) SuperCommitteeForNextEpoch(beacon engine.ChainReader, header *block.Header, isVerify bool) (*shard.State, error) { |
||||
return nil, nil |
||||
} |
||||
|
||||
//
|
||||
// Fake header for testing
|
||||
//
|
||||
|
||||
func makeFakeHeader() *block.Header { |
||||
h := blockfactory.NewTestHeader() |
||||
h.SetCoinbase(leaderAddr) |
||||
return h |
||||
} |
||||
|
||||
//
|
||||
// Utilities for testing
|
||||
//
|
||||
|
||||
func makeTestAddress(item interface{}) common.Address { |
||||
s := fmt.Sprintf("harmony.one.%v", item) |
||||
return common.BytesToAddress([]byte(s)) |
||||
if toRemove, ok := delegationsToRemove[delegator3]; ok { |
||||
if len(toRemove) != 0 { |
||||
t.Errorf("Unexpected # of removals for delegator3 %d", len(toRemove)) |
||||
} |
||||
|
||||
func makeVoteData(kp blsKeyPair, block *types.Block) slash.Vote { |
||||
return slash.Vote{ |
||||
SignerPubKeys: []bls.SerializedPublicKey{kp.Pub()}, |
||||
BlockHeaderHash: block.Hash(), |
||||
Signature: kp.Sign(block), |
||||
} |
||||
} |
||||
|
||||
Loading…
Reference in new issue