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package zkproof
import (
"io/ioutil"
"os"
"strconv"
"testing"
"time"
ethCommon "github.com/ethereum/go-ethereum/common"
ethCrypto "github.com/ethereum/go-ethereum/crypto"
"github.com/hermeznetwork/hermez-node/batchbuilder"
"github.com/hermeznetwork/hermez-node/common"
dbUtils "github.com/hermeznetwork/hermez-node/db"
"github.com/hermeznetwork/hermez-node/db/historydb"
"github.com/hermeznetwork/hermez-node/db/l2db"
"github.com/hermeznetwork/hermez-node/db/statedb"
"github.com/hermeznetwork/hermez-node/log"
"github.com/hermeznetwork/hermez-node/test"
"github.com/hermeznetwork/hermez-node/test/til"
"github.com/hermeznetwork/hermez-node/test/txsets"
"github.com/hermeznetwork/hermez-node/txselector"
"github.com/jmoiron/sqlx"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func addTokens(t *testing.T, tc *til.Context, db *sqlx.DB) {
var tokens []common.Token
for i := 0; i < int(tc.LastRegisteredTokenID); i++ {
tokens = append(tokens, common.Token{
TokenID: common.TokenID(i + 1),
EthBlockNum: 1,
EthAddr: ethCommon.BytesToAddress([]byte{byte(i + 1)}),
Name: strconv.Itoa(i),
Symbol: strconv.Itoa(i),
Decimals: 18,
})
}
hdb := historydb.NewHistoryDB(db, db, nil)
assert.NoError(t, hdb.AddBlock(&common.Block{
Num: 1,
}))
assert.NoError(t, hdb.AddTokens(tokens))
}
func addL2Txs(t *testing.T, l2DB *l2db.L2DB, poolL2Txs []common.PoolL2Tx) {
for i := 0; i < len(poolL2Txs); i++ {
err := l2DB.AddTxTest(&poolL2Txs[i])
if err != nil {
log.Error(err)
}
require.NoError(t, err)
}
}
func addAccCreationAuth(t *testing.T, tc *til.Context, l2DB *l2db.L2DB, chainID uint16,
hermezContractAddr ethCommon.Address, username string) []byte {
user := tc.Users[username]
auth := &common.AccountCreationAuth{
EthAddr: user.Addr,
BJJ: user.BJJ.Public().Compress(),
}
err := auth.Sign(func(hash []byte) ([]byte, error) {
return ethCrypto.Sign(hash, user.EthSk)
}, chainID, hermezContractAddr)
assert.NoError(t, err)
err = l2DB.AddAccountCreationAuth(auth)
assert.NoError(t, err)
return auth.Signature
}
func initTxSelector(t *testing.T, chainID uint16, hermezContractAddr ethCommon.Address,
coordUser *til.User) (*txselector.TxSelector, *l2db.L2DB, *statedb.StateDB) {
pass := os.Getenv("POSTGRES_PASS")
db, err := dbUtils.InitSQLDB(5432, "localhost", "hermez", pass, "hermez")
require.NoError(t, err)
l2DB := l2db.NewL2DB(db, db, 10, 100, 0.0, 24*time.Hour, nil)
dir, err := ioutil.TempDir("", "tmpSyncDB")
require.NoError(t, err)
defer assert.NoError(t, os.RemoveAll(dir))
syncStateDB, err := statedb.NewStateDB(statedb.Config{Path: dir, Keep: 128,
Type: statedb.TypeSynchronizer, NLevels: 0})
require.NoError(t, err)
txselDir, err := ioutil.TempDir("", "tmpTxSelDB")
require.NoError(t, err)
defer assert.NoError(t, os.RemoveAll(dir))
// use Til Coord keys for tests compatibility
coordAccount := &txselector.CoordAccount{
Addr: coordUser.Addr,
BJJ: coordUser.BJJ.Public().Compress(),
AccountCreationAuth: nil,
}
auth := common.AccountCreationAuth{
EthAddr: coordUser.Addr,
BJJ: coordUser.BJJ.Public().Compress(),
}
err = auth.Sign(func(hash []byte) ([]byte, error) {
return ethCrypto.Sign(hash, coordUser.EthSk)
}, chainID, hermezContractAddr)
assert.NoError(t, err)
coordAccount.AccountCreationAuth = auth.Signature
txsel, err := txselector.NewTxSelector(coordAccount, txselDir, syncStateDB, l2DB)
require.NoError(t, err)
test.WipeDB(l2DB.DB())
return txsel, l2DB, syncStateDB
}
func TestTxSelectorBatchBuilderZKInputsMinimumFlow0(t *testing.T) {
tc := til.NewContext(ChainID, common.RollupConstMaxL1UserTx)
// generate test transactions, the L1CoordinatorTxs generated by Til
// will be ignored at this test, as will be the TxSelector who
// generates them when needed
blocks, err := tc.GenerateBlocks(txsets.SetBlockchainMinimumFlow0)
require.NoError(t, err)
hermezContractAddr := ethCommon.HexToAddress("0xc344E203a046Da13b0B4467EB7B3629D0C99F6E6")
txsel, l2DBTxSel, syncStateDB := initTxSelector(t, ChainID, hermezContractAddr, tc.Users["Coord"])
bbDir, err := ioutil.TempDir("", "tmpBatchBuilderDB")
require.NoError(t, err)
bb, err := batchbuilder.NewBatchBuilder(bbDir, syncStateDB, 0, NLevels)
require.NoError(t, err)
// restart nonces of TilContext, as will be set by generating directly
// the PoolL2Txs for each specific batch with tc.GeneratePoolL2Txs
tc.RestartNonces()
// add tokens to HistoryDB to avoid breaking FK constrains
addTokens(t, tc, l2DBTxSel.DB())
configBatch := &batchbuilder.ConfigBatch{
// ForgerAddress:
TxProcessorConfig: txprocConfig,
}
// loop over the first 6 batches
expectedRoots := []string{"0", "0",
"10303926118213025243660668481827257778714122989909761705455084995854999537039",
"8530501758307821623834726627056947648600328521261384179220598288701741436285",
"8530501758307821623834726627056947648600328521261384179220598288701741436285",
"9061858435528794221929846392270405504056106238451760714188625065949729889651"}
for i := 0; i < 6; i++ {
log.Debugf("block:0 batch:%d", i+1)
var l1UserTxs []common.L1Tx
if blocks[0].Rollup.Batches[i].Batch.ForgeL1TxsNum != nil {
l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[i].Batch.ForgeL1TxsNum])
}
// TxSelector select the transactions for the next Batch
coordIdxs, _, oL1UserTxs, oL1CoordTxs, oL2Txs, _, err :=
txsel.GetL1L2TxSelection(txprocConfig, l1UserTxs)
require.NoError(t, err)
// BatchBuilder build Batch
zki, err := bb.BuildBatch(coordIdxs, configBatch, oL1UserTxs, oL1CoordTxs, oL2Txs)
require.NoError(t, err)
assert.Equal(t, expectedRoots[i], bb.LocalStateDB().MT.Root().BigInt().String())
sendProofAndCheckResp(t, zki)
}
log.Debug("block:0 batch:7")
// simulate the PoolL2Txs of the batch6
batchPoolL2 := `
Type: PoolL2
PoolTransferToEthAddr(1) A-B: 200 (126)
PoolTransferToEthAddr(0) B-C: 100 (126)`
l2Txs, err := tc.GeneratePoolL2Txs(batchPoolL2)
require.NoError(t, err)
// add AccountCreationAuths that will be used at the next batch
_ = addAccCreationAuth(t, tc, l2DBTxSel, ChainID, hermezContractAddr, "B")
_ = addAccCreationAuth(t, tc, l2DBTxSel, ChainID, hermezContractAddr, "C")
addL2Txs(t, l2DBTxSel, l2Txs) // Add L2s to TxSelector.L2DB
l1UserTxs := til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[6].Batch.ForgeL1TxsNum])
// TxSelector select the transactions for the next Batch
coordIdxs, _, oL1UserTxs, oL1CoordTxs, oL2Txs, discardedL2Txs, err :=
txsel.GetL1L2TxSelection(txprocConfig, l1UserTxs)
require.NoError(t, err)
// BatchBuilder build Batch
zki, err := bb.BuildBatch(coordIdxs, configBatch, oL1UserTxs, oL1CoordTxs, oL2Txs)
require.NoError(t, err)
assert.Equal(t,
"4392049343656836675348565048374261353937130287163762821533580216441778455298",
bb.LocalStateDB().MT.Root().BigInt().String())
sendProofAndCheckResp(t, zki)
err = l2DBTxSel.StartForging(common.TxIDsFromPoolL2Txs(oL2Txs),
txsel.LocalAccountsDB().CurrentBatch())
require.NoError(t, err)
err = l2DBTxSel.UpdateTxsInfo(discardedL2Txs)
require.NoError(t, err)
log.Debug("block:0 batch:8")
// simulate the PoolL2Txs of the batch8
batchPoolL2 = `
Type: PoolL2
PoolTransfer(0) A-B: 100 (126)
PoolTransfer(0) C-A: 50 (126)
PoolTransfer(1) B-C: 100 (126)
PoolExit(0) A: 100 (126)`
l2Txs, err = tc.GeneratePoolL2Txs(batchPoolL2)
require.NoError(t, err)
addL2Txs(t, l2DBTxSel, l2Txs) // Add L2s to TxSelector.L2DB
l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[7].Batch.ForgeL1TxsNum])
// TxSelector select the transactions for the next Batch
coordIdxs, _, oL1UserTxs, oL1CoordTxs, oL2Txs, discardedL2Txs, err =
txsel.GetL1L2TxSelection(txprocConfig, l1UserTxs)
require.NoError(t, err)
// BatchBuilder build Batch
zki, err = bb.BuildBatch(coordIdxs, configBatch, oL1UserTxs, oL1CoordTxs, oL2Txs)
require.NoError(t, err)
assert.Equal(t,
"8905191229562583213069132470917469035834300549892959854483573322676101624713",
bb.LocalStateDB().MT.Root().BigInt().String())
sendProofAndCheckResp(t, zki)
err = l2DBTxSel.StartForging(common.TxIDsFromPoolL2Txs(l2Txs),
txsel.LocalAccountsDB().CurrentBatch())
require.NoError(t, err)
err = l2DBTxSel.UpdateTxsInfo(discardedL2Txs)
require.NoError(t, err)
log.Debug("(batch9) block:1 batch:1")
// simulate the PoolL2Txs of the batch9
batchPoolL2 = `
Type: PoolL2
PoolTransfer(0) D-A: 300 (126)
PoolTransfer(0) B-D: 100 (126)`
l2Txs, err = tc.GeneratePoolL2Txs(batchPoolL2)
require.NoError(t, err)
addL2Txs(t, l2DBTxSel, l2Txs) // Add L2s to TxSelector.L2DB
l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[1].Rollup.Batches[0].Batch.ForgeL1TxsNum])
// TxSelector select the transactions for the next Batch
coordIdxs, _, oL1UserTxs, oL1CoordTxs, oL2Txs, discardedL2Txs, err =
txsel.GetL1L2TxSelection(txprocConfig, l1UserTxs)
require.NoError(t, err)
// BatchBuilder build Batch
zki, err = bb.BuildBatch(coordIdxs, configBatch, oL1UserTxs, oL1CoordTxs, oL2Txs)
require.NoError(t, err)
assert.Equal(t,
"20593679664586247774284790801579542411781976279024409415159440382607791042723",
bb.LocalStateDB().MT.Root().BigInt().String())
sendProofAndCheckResp(t, zki)
err = l2DBTxSel.StartForging(common.TxIDsFromPoolL2Txs(l2Txs),
txsel.LocalAccountsDB().CurrentBatch())
require.NoError(t, err)
err = l2DBTxSel.UpdateTxsInfo(discardedL2Txs)
require.NoError(t, err)
log.Debug("(batch10) block:1 batch:2")
l2Txs = []common.PoolL2Tx{}
l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[1].Rollup.Batches[1].Batch.ForgeL1TxsNum])
// TxSelector select the transactions for the next Batch
coordIdxs, _, oL1UserTxs, oL1CoordTxs, oL2Txs, discardedL2Txs, err =
txsel.GetL1L2TxSelection(txprocConfig, l1UserTxs)
require.NoError(t, err)
// BatchBuilder build Batch
zki, err = bb.BuildBatch(coordIdxs, configBatch, oL1UserTxs, oL1CoordTxs, oL2Txs)
require.NoError(t, err)
// same root as previous batch, as the L1CoordinatorTxs created by the
// Til set is not created by the TxSelector in this test
assert.Equal(t,
"20593679664586247774284790801579542411781976279024409415159440382607791042723",
bb.LocalStateDB().MT.Root().BigInt().String())
sendProofAndCheckResp(t, zki)
err = l2DBTxSel.StartForging(common.TxIDsFromPoolL2Txs(l2Txs),
txsel.LocalAccountsDB().CurrentBatch())
require.NoError(t, err)
err = l2DBTxSel.UpdateTxsInfo(discardedL2Txs)
require.NoError(t, err)
}
// TestZKInputsExitWithFee0 checks the case where there is a PoolTxs of type
// Exit with fee 0 for a TokenID that the Coordinator does not have it
// registered yet
func TestZKInputsExitWithFee0(t *testing.T) {
tc := til.NewContext(ChainID, common.RollupConstMaxL1UserTx)
var set = `
Type: Blockchain
AddToken(1)
CreateAccountDeposit(1) A: 1000
CreateAccountDeposit(1) B: 1000
CreateAccountDeposit(1) C: 1000
> batchL1
> batchL1
CreateAccountCoordinator(1) Coord
> batch
> block
`
blocks, err := tc.GenerateBlocks(set)
require.NoError(t, err)
hermezContractAddr := ethCommon.HexToAddress("0xc344E203a046Da13b0B4467EB7B3629D0C99F6E6")
txsel, l2DBTxSel, syncStateDB := initTxSelector(t, ChainID, hermezContractAddr, tc.Users["Coord"])
bbDir, err := ioutil.TempDir("", "tmpBatchBuilderDB")
require.NoError(t, err)
bb, err := batchbuilder.NewBatchBuilder(bbDir, syncStateDB, 0, NLevels)
require.NoError(t, err)
// restart nonces of TilContext, as will be set by generating directly
// the PoolL2Txs for each specific batch with tc.GeneratePoolL2Txs
tc.RestartNonces()
// add tokens to HistoryDB to avoid breaking FK constrains
addTokens(t, tc, l2DBTxSel.DB())
configBatch := &batchbuilder.ConfigBatch{
TxProcessorConfig: txprocConfig,
}
// batch2
// TxSelector select the transactions for the next Batch
l1UserTxs := til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[1].Batch.ForgeL1TxsNum])
coordIdxs, _, oL1UserTxs, oL1CoordTxs, oL2Txs, _, err :=
txsel.GetL1L2TxSelection(txprocConfig, l1UserTxs)
require.NoError(t, err)
// BatchBuilder build Batch
zki, err := bb.BuildBatch(coordIdxs, configBatch, oL1UserTxs, oL1CoordTxs, oL2Txs)
require.NoError(t, err)
assert.Equal(t,
"3050252508378236752695438107925920517579600844238792454632938959089837319058",
bb.LocalStateDB().MT.Root().BigInt().String())
h, err := zki.HashGlobalData()
require.NoError(t, err)
assert.Equal(t,
"136173330006576039857485697813777018179965431269591881328654192642028135989",
h.String())
sendProofAndCheckResp(t, zki)
// batch3
batchPoolL2 := `
Type: PoolL2
PoolExit(1) A: 100 (0)`
l2Txs, err := tc.GeneratePoolL2Txs(batchPoolL2)
require.NoError(t, err)
addL2Txs(t, l2DBTxSel, l2Txs) // Add L2s to TxSelector.L2DB
coordIdxs, _, oL1UserTxs, oL1CoordTxs, oL2Txs, discardedL2Txs, err :=
txsel.GetL1L2TxSelection(txprocConfig, nil)
require.NoError(t, err)
assert.Equal(t, 1, len(coordIdxs))
assert.Equal(t, 0, len(oL1UserTxs))
assert.Equal(t, 1, len(oL1CoordTxs))
assert.Equal(t, 1, len(oL2Txs))
assert.Equal(t, 0, len(discardedL2Txs))
// BatchBuilder build Batch
zki, err = bb.BuildBatch(coordIdxs, configBatch, oL1UserTxs, oL1CoordTxs, oL2Txs)
require.NoError(t, err)
assert.Equal(t,
"2941150582529643425331223235752941075548157545257982041291886277157404095484",
bb.LocalStateDB().MT.Root().BigInt().String())
h, err = zki.HashGlobalData()
require.NoError(t, err)
assert.Equal(t,
"11526955144859107275861838429358092025337347677758832533226842081116224550335",
h.String())
assert.Equal(t, common.EthAddrToBigInt(tc.Users["Coord"].Addr), zki.EthAddr3[0])
assert.Equal(t, "0", zki.EthAddr3[1].String())
sendProofAndCheckResp(t, zki)
}