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477 lines
18 KiB
477 lines
18 KiB
package core
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import (
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"crypto/ecdsa"
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"errors"
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"fmt"
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"math"
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"math/big"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethdb"
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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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blockfactory "github.com/harmony-one/harmony/block/factory"
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"github.com/harmony-one/harmony/common/denominations"
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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/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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chain2 "github.com/harmony-one/harmony/internal/chain"
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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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staking "github.com/harmony-one/harmony/staking/types"
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)
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func getTestEnvironment(testBankKey ecdsa.PrivateKey) (*BlockChainImpl, *state.DB, *block.Header, ethdb.Database) {
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// initialize
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var (
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testBankAddress = crypto.PubkeyToAddress(testBankKey.PublicKey)
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testBankFunds = new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(40000))
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chainConfig = params.TestChainConfig
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blockFactory = blockfactory.ForTest
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database = rawdb.NewMemoryDatabase()
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gspec = Genesis{
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Config: chainConfig,
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Factory: blockFactory,
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Alloc: GenesisAlloc{testBankAddress: {Balance: testBankFunds}},
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ShardID: 0,
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}
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engine = chain2.NewEngine()
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)
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genesis := gspec.MustCommit(database)
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// fake blockchain
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cacheConfig := &CacheConfig{SnapshotLimit: 0}
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chain, _ := NewBlockChain(database, nil, nil, cacheConfig, gspec.Config, engine, vm.Config{})
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db, _ := chain.StateAt(genesis.Root())
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// make a fake block header (use epoch 1 so that locked tokens can be tested)
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header := blockFactory.NewHeader(common.Big0)
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return chain, db, header, database
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}
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func TestEVMStaking(t *testing.T) {
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key, _ := crypto.GenerateKey()
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chain, db, header, database := getTestEnvironment(*key)
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batch := database.NewBatch()
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header.SetNumber(big.NewInt(1))
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// fake transaction
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tx := types.NewTransaction(1, common.BytesToAddress([]byte{0x11}), 0, big.NewInt(111), 1111, big.NewInt(11111), []byte{0x11, 0x11, 0x11})
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// transaction as message (chainId = 2)
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msg, _ := tx.AsMessage(types.NewEIP155Signer(common.Big2))
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// context
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ctx := NewEVMContext(msg, header, chain, nil /* coinbase */)
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// createValidator test
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createValidator := sampleCreateValidator(*key)
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err := ctx.CreateValidator(db, nil, &createValidator)
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if err != nil {
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t.Errorf("Got error %v in CreateValidator", err)
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}
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// write it to snapshot so that we can use it in edit
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// use a copy because we are editing below (wrapper.Delegations)
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wrapper, err := db.ValidatorWrapper(createValidator.ValidatorAddress, false, true)
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err = chain.WriteValidatorSnapshot(batch, &staking.ValidatorSnapshot{Validator: wrapper, Epoch: header.Epoch()})
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// also write the delegation so we can use it in CollectRewards
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selfIndex := staking.DelegationIndex{
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ValidatorAddress: createValidator.ValidatorAddress,
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Index: uint64(0),
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BlockNum: common.Big0, // block number at which delegation starts
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}
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err = chain.writeDelegationsByDelegator(batch, createValidator.ValidatorAddress, []staking.DelegationIndex{selfIndex})
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// editValidator test
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editValidator := sampleEditValidator(*key)
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editValidator.SlotKeyToRemove = &createValidator.SlotPubKeys[0]
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err = ctx.EditValidator(db, nil, &editValidator)
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if err != nil {
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t.Errorf("Got error %v in EditValidator", err)
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}
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// delegate test
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delegate := sampleDelegate(*key)
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// add undelegations in epoch0
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wrapper.Delegations[0].Undelegations = []staking.Undelegation{
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{
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Amount: new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(10000)),
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Epoch: common.Big0,
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},
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}
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// redelegate using epoch1, so that we can cover the locked tokens use case as well
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ctx2 := NewEVMContext(msg, blockfactory.ForTest.NewHeader(common.Big1), chain, nil)
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err = db.UpdateValidatorWrapper(wrapper.Address, wrapper)
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err = ctx2.Delegate(db, nil, &delegate)
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if err != nil {
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t.Errorf("Got error %v in Delegate", err)
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}
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// undelegate test
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undelegate := sampleUndelegate(*key)
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err = ctx.Undelegate(db, nil, &undelegate)
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if err != nil {
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t.Errorf("Got error %v in Undelegate", err)
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}
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// collectRewards test
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collectRewards := sampleCollectRewards(*key)
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// add block rewards to make sure there are some to collect
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wrapper.Delegations[0].Undelegations = []staking.Undelegation{}
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wrapper.Delegations[0].Reward = common.Big257
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db.UpdateValidatorWrapper(wrapper.Address, wrapper)
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err = ctx.CollectRewards(db, nil, &collectRewards)
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if err != nil {
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t.Errorf("Got error %v in CollectRewards", err)
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}
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//// migration test - when from has no delegations
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//toKey, _ := crypto.GenerateKey()
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//migration := sampleMigrationMsg(*toKey, *key)
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//delegates, err := ctx.MigrateDelegations(db, &migration)
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//expectedError := errors.New("No delegations to migrate")
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//if err != nil && expectedError.Error() != err.Error() {
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// t.Errorf("Got error %v in MigrateDelegations but expected %v", err, expectedError)
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//}
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//if len(delegates) > 0 {
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// t.Errorf("Got delegates to migrate when none were expected")
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//}
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//// migration test - when from == to
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//migration = sampleMigrationMsg(*toKey, *toKey)
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//delegates, err = ctx.MigrateDelegations(db, &migration)
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//expectedError = errors.New("From and To are the same address")
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//if err != nil && expectedError.Error() != err.Error() {
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// t.Errorf("Got error %v in MigrateDelegations but expected %v", err, expectedError)
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//}
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//if len(delegates) > 0 {
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// t.Errorf("Got delegates to migrate when none were expected")
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//}
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//// migration test - when `to` has no delegations
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//snapshot := db.Snapshot()
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//migration = sampleMigrationMsg(*key, *toKey)
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//wrapper, _ = db.ValidatorWrapper(wrapper.Address, true, false)
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//expectedAmount := wrapper.Delegations[0].Amount
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//delegates, err = ctx.MigrateDelegations(db, &migration)
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//if err != nil {
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// t.Errorf("Got error %v in MigrateDelegations", err)
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//}
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//if len(delegates) != 1 {
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// t.Errorf("Got %d delegations to migrate, expected just 1", len(delegates))
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//}
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//wrapper, _ = db.ValidatorWrapper(createValidator.ValidatorAddress, false, true)
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//if wrapper.Delegations[0].Amount.Cmp(common.Big0) != 0 {
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// t.Errorf("Expected delegation at index 0 to have amount 0, but it has amount %d",
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// wrapper.Delegations[0].Amount)
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//}
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//if wrapper.Delegations[1].Amount.Cmp(expectedAmount) != 0 {
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// t.Errorf("Expected delegation at index 1 to have amount %d, but it has amount %d",
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// expectedAmount, wrapper.Delegations[1].Amount)
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//}
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//db.RevertToSnapshot(snapshot)
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//snapshot = db.Snapshot()
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//// migration test - when `from` delegation amount = 0 and no undelegations
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//wrapper, _ = db.ValidatorWrapper(createValidator.ValidatorAddress, false, true)
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//wrapper.Delegations[0].Undelegations = make([]staking.Undelegation, 0)
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//wrapper.Delegations[0].Amount = common.Big0
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//wrapper.Status = effective.Inactive
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//err = db.UpdateValidatorWrapperWithRevert(wrapper.Address, wrapper)
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//if err != nil {
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// t.Errorf("Got error %v in UpdateValidatorWrapperWithRevert", err)
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//}
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//delegates, err = ctx.MigrateDelegations(db, &migration)
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//if err != nil {
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// t.Errorf("Got error %v in MigrateDelegations", err)
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//}
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//if len(delegates) != 0 {
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// t.Errorf("Got %d delegations to migrate, expected none", len(delegates))
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//}
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//db.RevertToSnapshot(snapshot)
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//snapshot = db.Snapshot()
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//// migration test - when `to` has one delegation
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//wrapper, _ = db.ValidatorWrapper(createValidator.ValidatorAddress, false, true)
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//wrapper.Delegations = append(wrapper.Delegations, staking.NewDelegation(
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// migration.To, new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(100))))
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//expectedAmount = big.NewInt(0).Add(
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// wrapper.Delegations[0].Amount, wrapper.Delegations[1].Amount,
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//)
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//err = db.UpdateValidatorWrapperWithRevert(wrapper.Address, wrapper)
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//if err != nil {
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// t.Errorf("Got error %v in UpdateValidatorWrapperWithRevert", err)
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//}
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//delegates, err = ctx.MigrateDelegations(db, &migration)
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//if err != nil {
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// t.Errorf("Got error %v in MigrateDelegations", err)
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//}
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//if len(delegates) != 1 {
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// t.Errorf("Got %d delegations to migrate, expected just 1", len(delegates))
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//}
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//// read from updated wrapper
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//wrapper, _ = db.ValidatorWrapper(createValidator.ValidatorAddress, true, false)
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//if wrapper.Delegations[0].Amount.Cmp(common.Big0) != 0 {
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// t.Errorf("Expected delegation at index 0 to have amount 0, but it has amount %d",
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// wrapper.Delegations[0].Amount)
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//}
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//if wrapper.Delegations[1].Amount.Cmp(expectedAmount) != 0 {
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// t.Errorf("Expected delegation at index 1 to have amount %d, but it has amount %d",
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// expectedAmount, wrapper.Delegations[1].Amount)
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//}
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//db.RevertToSnapshot(snapshot)
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//snapshot = db.Snapshot()
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//// migration test - when `to` has one undelegation in the current epoch and so does `from`
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//wrapper, _ = db.ValidatorWrapper(createValidator.ValidatorAddress, false, true)
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//delegation := staking.NewDelegation(migration.To, big.NewInt(0))
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//delegation.Undelegations = []staking.Undelegation{
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// staking.Undelegation{
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// Amount: new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(100)),
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// Epoch: common.Big0,
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// },
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//}
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//wrapper.Delegations[0].Undelegate(
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// big.NewInt(0), new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(100)),
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//)
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//expectedAmount = big.NewInt(0).Add(
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// wrapper.Delegations[0].Amount, big.NewInt(0),
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//)
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//wrapper.Delegations = append(wrapper.Delegations, delegation)
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//expectedDelegations := []staking.Delegation{
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// staking.Delegation{
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// DelegatorAddress: wrapper.Address,
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// Amount: big.NewInt(0),
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// Reward: big.NewInt(0),
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// Undelegations: []staking.Undelegation{},
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// },
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// staking.Delegation{
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// DelegatorAddress: crypto.PubkeyToAddress(toKey.PublicKey),
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// Amount: expectedAmount,
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// Undelegations: []staking.Undelegation{
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// staking.Undelegation{
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// Amount: new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(200)),
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// Epoch: common.Big0,
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// },
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// },
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// },
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//}
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//err = db.UpdateValidatorWrapperWithRevert(wrapper.Address, wrapper)
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//if err != nil {
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// t.Errorf("Got error %v in UpdateValidatorWrapperWithRevert", err)
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//}
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//delegates, err = ctx.MigrateDelegations(db, &migration)
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//if err != nil {
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// t.Errorf("Got error %v in MigrateDelegations", err)
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//}
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//if len(delegates) != 1 {
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// t.Errorf("Got %d delegations to migrate, expected just 1", len(delegates))
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//}
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//// read from updated wrapper
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//wrapper, _ = db.ValidatorWrapper(createValidator.ValidatorAddress, true, false)
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//// and finally the check for delegations being equal
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//if err := staketest.CheckDelegationsEqual(
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// wrapper.Delegations,
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// expectedDelegations,
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//); err != nil {
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// t.Errorf("Got error %s in CheckDelegationsEqual", err)
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//}
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//// test for migration gas
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//db.RevertToSnapshot(snapshot)
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//// to calculate gas we need to test 0 / 1 / 2 delegations to migrate as per ReadDelegationsByDelegator
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//// case 0
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//evm := vm.NewEVM(ctx, db, params.TestChainConfig, vm.Config{})
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//gas, err := ctx.CalculateMigrationGas(db, &staking.MigrationMsg{
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// From: crypto.PubkeyToAddress(toKey.PublicKey),
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// To: crypto.PubkeyToAddress(key.PublicKey),
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//}, evm.ChainConfig().IsS3(evm.EpochNumber), evm.ChainConfig().IsS3(evm.EpochNumber))
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//var expectedGasMin uint64 = params.TxGas
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//if err != nil {
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// t.Errorf("Gas error %s", err)
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//}
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//if gas < expectedGasMin {
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// t.Errorf("Gas for 0 migration was expected to be at least %d but got %d", expectedGasMin, gas)
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//}
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//// case 1
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//gas, err = ctx.CalculateMigrationGas(db, &migration,
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// evm.ChainConfig().IsS3(evm.EpochNumber), evm.ChainConfig().IsS3(evm.EpochNumber))
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//expectedGasMin = params.TxGas
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//if err != nil {
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// t.Errorf("Gas error %s", err)
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//}
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//if gas < expectedGasMin {
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// t.Errorf("Gas for 1 migration was expected to be at least %d but got %d", expectedGasMin, gas)
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//}
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//// case 2
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//createValidator = sampleCreateValidator(*toKey)
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//db.AddBalance(createValidator.ValidatorAddress, createValidator.Amount)
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//err = ctx.CreateValidator(db, &createValidator)
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//delegate = sampleDelegate(*toKey)
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//delegate.DelegatorAddress = crypto.PubkeyToAddress(key.PublicKey)
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//_ = ctx.Delegate(db, &delegate)
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//delegationIndex := staking.DelegationIndex{
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// ValidatorAddress: crypto.PubkeyToAddress(toKey.PublicKey),
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// Index: uint64(1),
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// BlockNum: common.Big0,
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//}
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//err = chain.writeDelegationsByDelegator(batch, migration.From, []staking.DelegationIndex{selfIndex, delegationIndex})
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//gas, err = ctx.CalculateMigrationGas(db, &migration,
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// evm.ChainConfig().IsS3(evm.EpochNumber), evm.ChainConfig().IsS3(evm.EpochNumber))
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//expectedGasMin = 2 * params.TxGas
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//if err != nil {
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// t.Errorf("Gas error %s", err)
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//}
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//if gas < expectedGasMin {
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// t.Errorf("Gas for 2 migrations was expected to be at least %d but got %d", expectedGasMin, gas)
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//}
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}
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func generateBLSKeyAndSig() (bls.SerializedPublicKey, bls.SerializedSignature) {
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p := &bls_core.PublicKey{}
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p.DeserializeHexStr(testBLSPubKey)
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pub := bls.SerializedPublicKey{}
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pub.FromLibBLSPublicKey(p)
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messageBytes := []byte(staking.BLSVerificationStr)
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privateKey := &bls_core.SecretKey{}
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privateKey.DeserializeHexStr(testBLSPrvKey)
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msgHash := hash.Keccak256(messageBytes)
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signature := privateKey.SignHash(msgHash[:])
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var sig bls.SerializedSignature
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copy(sig[:], signature.Serialize())
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return pub, sig
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}
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func sampleCreateValidator(key ecdsa.PrivateKey) staking.CreateValidator {
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pub, sig := generateBLSKeyAndSig()
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ra, _ := numeric.NewDecFromStr("0.7")
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maxRate, _ := numeric.NewDecFromStr("1")
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maxChangeRate, _ := numeric.NewDecFromStr("0.5")
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return staking.CreateValidator{
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Description: 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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CommissionRates: staking.CommissionRates{
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Rate: ra,
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MaxRate: maxRate,
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MaxChangeRate: maxChangeRate,
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},
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MinSelfDelegation: new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(10000)),
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MaxTotalDelegation: new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(20000)),
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ValidatorAddress: crypto.PubkeyToAddress(key.PublicKey),
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SlotPubKeys: []bls.SerializedPublicKey{pub},
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SlotKeySigs: []bls.SerializedSignature{sig},
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Amount: new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(15000)),
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}
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}
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func sampleEditValidator(key ecdsa.PrivateKey) staking.EditValidator {
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// generate new key and sig
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slotKeyToAdd, slotKeyToAddSig := generateBLSKeyAndSig()
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// rate
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ra, _ := numeric.NewDecFromStr("0.8")
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return staking.EditValidator{
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Description: staking.Description{
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Name: "Alice",
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Identity: "alice",
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Website: "alice.harmony.one",
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SecurityContact: "Bob",
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Details: "Don't mess with me!!!",
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},
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CommissionRate: &ra,
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MinSelfDelegation: new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(10000)),
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MaxTotalDelegation: new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(20000)),
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SlotKeyToRemove: nil,
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SlotKeyToAdd: &slotKeyToAdd,
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SlotKeyToAddSig: &slotKeyToAddSig,
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ValidatorAddress: crypto.PubkeyToAddress(key.PublicKey),
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}
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}
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func sampleDelegate(key ecdsa.PrivateKey) staking.Delegate {
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address := crypto.PubkeyToAddress(key.PublicKey)
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return staking.Delegate{
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DelegatorAddress: address,
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ValidatorAddress: address,
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// additional delegation of 1000 ONE
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Amount: new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(1000)),
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}
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}
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func sampleUndelegate(key ecdsa.PrivateKey) staking.Undelegate {
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address := crypto.PubkeyToAddress(key.PublicKey)
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return staking.Undelegate{
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DelegatorAddress: address,
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ValidatorAddress: address,
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// undelegate the delegation of 1000 ONE
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Amount: new(big.Int).Mul(big.NewInt(denominations.One), big.NewInt(1000)),
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}
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}
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func sampleCollectRewards(key ecdsa.PrivateKey) staking.CollectRewards {
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address := crypto.PubkeyToAddress(key.PublicKey)
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return staking.CollectRewards{
|
|
DelegatorAddress: address,
|
|
}
|
|
}
|
|
|
|
func sampleMigrationMsg(from ecdsa.PrivateKey, to ecdsa.PrivateKey) staking.MigrationMsg {
|
|
fromAddress := crypto.PubkeyToAddress(from.PublicKey)
|
|
toAddress := crypto.PubkeyToAddress(to.PublicKey)
|
|
return staking.MigrationMsg{
|
|
From: fromAddress,
|
|
To: toAddress,
|
|
}
|
|
}
|
|
|
|
func TestWriteCapablePrecompilesIntegration(t *testing.T) {
|
|
key, _ := crypto.GenerateKey()
|
|
chain, db, header, _ := getTestEnvironment(*key)
|
|
// gp := new(GasPool).AddGas(math.MaxUint64)
|
|
tx := types.NewTransaction(1, common.BytesToAddress([]byte{0x11}), 0, big.NewInt(111), 1111, big.NewInt(11111), []byte{0x11, 0x11, 0x11})
|
|
msg, _ := tx.AsMessage(types.NewEIP155Signer(common.Big2))
|
|
ctx := NewEVMContext(msg, header, chain, nil /* coinbase */)
|
|
evm := vm.NewEVM(ctx, db, params.TestChainConfig, vm.Config{})
|
|
// interpreter := vm.NewEVMInterpreter(evm, vm.Config{})
|
|
address := common.BytesToAddress([]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 252})
|
|
// caller ContractRef, addr common.Address, input []byte, gas uint64, value *big.Int)
|
|
_, _, err := evm.Call(vm.AccountRef(common.Address{}), address,
|
|
[]byte{109, 107, 47, 119, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 19},
|
|
math.MaxUint64, new(big.Int))
|
|
expectedError := errors.New("abi: cannot marshal in to go type: length insufficient 31 require 32")
|
|
if err != nil {
|
|
if err.Error() != expectedError.Error() {
|
|
t.Errorf(fmt.Sprintf("Got error %v in evm.Call but expected %v", err, expectedError))
|
|
}
|
|
}
|
|
|
|
// now add a validator, and send its address as caller
|
|
createValidator := sampleCreateValidator(*key)
|
|
err = ctx.CreateValidator(db, nil, &createValidator)
|
|
_, _, err = evm.Call(vm.AccountRef(common.Address{}),
|
|
createValidator.ValidatorAddress,
|
|
[]byte{},
|
|
math.MaxUint64, new(big.Int))
|
|
if err != nil {
|
|
t.Errorf(fmt.Sprintf("Got error %v in evm.Call", err))
|
|
}
|
|
|
|
// now without staking precompile
|
|
cfg := params.TestChainConfig
|
|
cfg.StakingPrecompileEpoch = big.NewInt(10000000)
|
|
evm = vm.NewEVM(ctx, db, cfg, vm.Config{})
|
|
_, _, err = evm.Call(vm.AccountRef(common.Address{}),
|
|
createValidator.ValidatorAddress,
|
|
[]byte{},
|
|
math.MaxUint64, new(big.Int))
|
|
if err != nil {
|
|
t.Errorf(fmt.Sprintf("Got error %v in evm.Call", err))
|
|
}
|
|
}
|
|
|