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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) 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, 10, 100, 24*time.Hour)
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())
selectionConfig := &txselector.SelectionConfig{ MaxL1UserTxs: 100, // TODO
TxProcessorConfig: txprocConfig, } configBatch := &batchbuilder.ConfigBatch{ // ForgerAddress:
TxProcessorConfig: txprocConfig, }
// loop over the first 6 batches
expectedRoots := []string{"0", "0", "13644148972047617726265275926674266298636745191961029124811988256139761111521", "12433441613247342495680642890662773367605896324555599297255745922589338651261", "12433441613247342495680642890662773367605896324555599297255745922589338651261", "4191361650490017591061467288209836928064232431729236465872209988325272262963"} 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(selectionConfig, 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(selectionConfig, l1UserTxs) require.NoError(t, err) // BatchBuilder build Batch
zki, err := bb.BuildBatch(coordIdxs, configBatch, oL1UserTxs, oL1CoordTxs, oL2Txs) require.NoError(t, err) assert.Equal(t, "7614010373759339299470010949167613050707822522530721724565424494781010548240", 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(selectionConfig, l1UserTxs) require.NoError(t, err) // BatchBuilder build Batch
zki, err = bb.BuildBatch(coordIdxs, configBatch, oL1UserTxs, oL1CoordTxs, oL2Txs) require.NoError(t, err) assert.Equal(t, "21231789250434471575486264439945776732824482207853465397552873521865656677689", 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(selectionConfig, l1UserTxs) require.NoError(t, err) // BatchBuilder build Batch
zki, err = bb.BuildBatch(coordIdxs, configBatch, oL1UserTxs, oL1CoordTxs, oL2Txs) require.NoError(t, err) assert.Equal(t, "11289313644810782435120113035387729451095637380468777086895109386127538554246", 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(selectionConfig, 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, "11289313644810782435120113035387729451095637380468777086895109386127538554246", 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())
selectionConfig := &txselector.SelectionConfig{ MaxL1UserTxs: 100, TxProcessorConfig: txprocConfig, } 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(selectionConfig, l1UserTxs) require.NoError(t, err) // BatchBuilder build Batch
zki, err := bb.BuildBatch(coordIdxs, configBatch, oL1UserTxs, oL1CoordTxs, oL2Txs) require.NoError(t, err) assert.Equal(t, "8737171572459172806192626402462788826264011087579491137542380589998149683116", bb.LocalStateDB().MT.Root().BigInt().String()) h, err := zki.HashGlobalData() require.NoError(t, err) assert.Equal(t, "9971598169768987067017223790214537222850903267980994716992761290793474746117", 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(selectionConfig, 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, "18306761925365215381387147754881756804475668085493847010988306480531520370130", bb.LocalStateDB().MT.Root().BigInt().String()) h, err = zki.HashGlobalData() require.NoError(t, err) assert.Equal(t, "7992262236065691439683036344554725221924027193771770363772735722054938818364", 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)}
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