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package txselector
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import (
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"crypto/ecdsa"
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"fmt"
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"io/ioutil"
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"math/big"
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"os"
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"strconv"
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"testing"
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"time"
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ethCommon "github.com/ethereum/go-ethereum/common"
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ethCrypto "github.com/ethereum/go-ethereum/crypto"
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"github.com/hermeznetwork/hermez-node/common"
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dbUtils "github.com/hermeznetwork/hermez-node/db"
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"github.com/hermeznetwork/hermez-node/db/historydb"
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"github.com/hermeznetwork/hermez-node/db/l2db"
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"github.com/hermeznetwork/hermez-node/db/statedb"
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"github.com/hermeznetwork/hermez-node/log"
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"github.com/hermeznetwork/hermez-node/test"
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"github.com/hermeznetwork/hermez-node/test/til"
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"github.com/hermeznetwork/hermez-node/txprocessor"
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"github.com/iden3/go-iden3-crypto/babyjub"
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"github.com/jmoiron/sqlx"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func initTest(t *testing.T, chainID uint16, hermezContractAddr ethCommon.Address, testSet string) (*TxSelector, *til.Context) {
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pass := os.Getenv("POSTGRES_PASS")
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db, err := dbUtils.InitSQLDB(5432, "localhost", "hermez", pass, "hermez")
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require.NoError(t, err)
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l2DB := l2db.NewL2DB(db, 10, 100, 24*time.Hour)
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dir, err := ioutil.TempDir("", "tmpdb")
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require.NoError(t, err)
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defer assert.NoError(t, os.RemoveAll(dir))
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sdb, err := statedb.NewStateDB(dir, 128, statedb.TypeTxSelector, 0)
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require.NoError(t, err)
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txselDir, err := ioutil.TempDir("", "tmpTxSelDB")
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require.NoError(t, err)
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defer assert.NoError(t, os.RemoveAll(dir))
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// coordinator keys
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var ethSk ecdsa.PrivateKey
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ethSk.D = big.NewInt(int64(1)) // only for testing
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ethSk.PublicKey.X, ethSk.PublicKey.Y = ethCrypto.S256().ScalarBaseMult(ethSk.D.Bytes())
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ethSk.Curve = ethCrypto.S256()
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addr := ethCrypto.PubkeyToAddress(ethSk.PublicKey)
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var bjj babyjub.PublicKeyComp
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err = bjj.UnmarshalText([]byte("c433f7a696b7aa3a5224efb3993baf0ccd9e92eecee0c29a3f6c8208a9e81d9e"))
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require.NoError(t, err)
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coordAccount := &CoordAccount{
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Addr: addr,
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BJJ: bjj,
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AccountCreationAuth: nil,
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}
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auth := common.AccountCreationAuth{
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EthAddr: addr,
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BJJ: bjj,
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}
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err = auth.Sign(func(hash []byte) ([]byte, error) {
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return ethCrypto.Sign(hash, ðSk)
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}, chainID, hermezContractAddr)
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assert.NoError(t, err)
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coordAccount.AccountCreationAuth = auth.Signature
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txsel, err := NewTxSelector(coordAccount, txselDir, sdb, l2DB)
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require.NoError(t, err)
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test.WipeDB(txsel.l2db.DB())
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tc := til.NewContext(chainID, common.RollupConstMaxL1UserTx)
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return txsel, tc
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}
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func addAccCreationAuth(t *testing.T, tc *til.Context, txsel *TxSelector, chainID uint16, hermezContractAddr ethCommon.Address, username string) []byte {
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user := tc.Users[username]
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auth := &common.AccountCreationAuth{
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EthAddr: user.Addr,
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BJJ: user.BJJ.Public().Compress(),
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}
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err := auth.Sign(func(hash []byte) ([]byte, error) {
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return ethCrypto.Sign(hash, user.EthSk)
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}, chainID, hermezContractAddr)
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assert.NoError(t, err)
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err = txsel.l2db.AddAccountCreationAuth(auth)
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assert.NoError(t, err)
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return auth.Signature
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}
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func addL2Txs(t *testing.T, txsel *TxSelector, poolL2Txs []common.PoolL2Tx) {
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for i := 0; i < len(poolL2Txs); i++ {
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err := txsel.l2db.AddTxTest(&poolL2Txs[i])
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if err != nil {
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log.Error(err)
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}
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require.NoError(t, err)
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}
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}
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func addTokens(t *testing.T, tc *til.Context, db *sqlx.DB) {
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var tokens []common.Token
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for i := 0; i < int(tc.LastRegisteredTokenID); i++ {
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tokens = append(tokens, common.Token{
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TokenID: common.TokenID(i + 1),
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EthBlockNum: 1,
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EthAddr: ethCommon.BytesToAddress([]byte{byte(i + 1)}),
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Name: strconv.Itoa(i),
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Symbol: strconv.Itoa(i),
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Decimals: 18,
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})
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}
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hdb := historydb.NewHistoryDB(db)
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assert.NoError(t, hdb.AddBlock(&common.Block{
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Num: 1,
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}))
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assert.NoError(t, hdb.AddTokens(tokens))
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}
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func checkBalance(t *testing.T, tc *til.Context, txsel *TxSelector, username string, tokenid int, expected string) {
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// Accounts.Idx does not match with the TxSelector tests as we are not
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// using the Til L1CoordinatorTxs (as are generated by the TxSelector
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// itself when processing the txs, so the Idxs does not match the Til
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// idxs). But the Idx is obtained through StateDB.GetIdxByEthAddrBJJ
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user := tc.Users[username]
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idx, err := txsel.localAccountsDB.GetIdxByEthAddrBJJ(user.Addr, user.BJJ.Public().Compress(), common.TokenID(tokenid))
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require.NoError(t, err)
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checkBalanceByIdx(t, txsel, idx, expected)
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}
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func checkBalanceByIdx(t *testing.T, txsel *TxSelector, idx common.Idx, expected string) {
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acc, err := txsel.localAccountsDB.GetAccount(idx)
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require.NoError(t, err)
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assert.Equal(t, expected, acc.Balance.String())
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}
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// checkSortedByNonce takes as input testAccNonces map, and the array of
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// common.PoolL2Txs, and checks if the nonces correspond to the accumulated
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// values of the map. Also increases the Nonces computed on the map.
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func checkSortedByNonce(t *testing.T, testAccNonces map[common.Idx]common.Nonce, txs []common.PoolL2Tx) {
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for _, tx := range txs {
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assert.True(t, testAccNonces[tx.FromIdx] == tx.Nonce,
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fmt.Sprintf("Idx: %d, expected: %d, tx.Nonce: %d",
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tx.FromIdx, testAccNonces[tx.FromIdx], tx.Nonce))
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testAccNonces[tx.FromIdx] = testAccNonces[tx.FromIdx] + 1
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}
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}
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func TestGetL2TxSelectionMinimumFlow0(t *testing.T) {
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chainID := uint16(0)
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hermezContractAddr := ethCommon.HexToAddress("0xc344E203a046Da13b0B4467EB7B3629D0C99F6E6")
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txsel, tc := initTest(t, chainID, hermezContractAddr, til.SetPool0)
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// generate test transactions, the L1CoordinatorTxs generated by Til
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// will be ignored at this test, as will be the TxSelector who
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// generates them when needed
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blocks, err := tc.GenerateBlocks(til.SetBlockchainMinimumFlow0)
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assert.NoError(t, err)
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// restart nonces of TilContext, as will be set by generating directly
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// the PoolL2Txs for each specific batch with tc.GeneratePoolL2Txs
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tc.RestartNonces()
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testAccNonces := make(map[common.Idx]common.Nonce)
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// add tokens to HistoryDB to avoid breaking FK constrains
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addTokens(t, tc, txsel.l2db.DB())
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tpc := txprocessor.Config{
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NLevels: 16,
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MaxFeeTx: 10,
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MaxTx: 20,
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MaxL1Tx: 10,
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ChainID: chainID,
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}
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selectionConfig := &SelectionConfig{
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MaxL1UserTxs: 5,
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TxProcessorConfig: tpc,
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}
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// coordIdxs, accAuths, l1UserTxs, l1CoordTxs, l2Txs, err
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log.Debug("block:0 batch:0")
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l1UserTxs := []common.L1Tx{}
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_, _, oL1UserTxs, oL1CoordTxs, oL2Txs, err := txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs)
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require.NoError(t, err)
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assert.Equal(t, 0, len(oL1UserTxs))
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assert.Equal(t, 0, len(oL1CoordTxs))
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assert.Equal(t, 0, len(oL2Txs))
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assert.Equal(t, common.BatchNum(1), txsel.localAccountsDB.CurrentBatch())
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assert.Equal(t, common.Idx(255), txsel.localAccountsDB.CurrentIdx())
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log.Debug("block:0 batch:1")
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l1UserTxs = []common.L1Tx{}
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_, _, oL1UserTxs, oL1CoordTxs, oL2Txs, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs)
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require.NoError(t, err)
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assert.Equal(t, 0, len(oL1UserTxs))
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assert.Equal(t, 0, len(oL1CoordTxs))
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assert.Equal(t, 0, len(oL2Txs))
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assert.Equal(t, common.BatchNum(2), txsel.localAccountsDB.CurrentBatch())
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assert.Equal(t, common.Idx(255), txsel.localAccountsDB.CurrentIdx())
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log.Debug("block:0 batch:2")
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l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[2].Batch.ForgeL1TxsNum])
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_, _, oL1UserTxs, oL1CoordTxs, oL2Txs, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs)
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require.NoError(t, err)
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assert.Equal(t, 2, len(oL1UserTxs))
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assert.Equal(t, 0, len(oL1CoordTxs))
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assert.Equal(t, 0, len(oL2Txs))
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assert.Equal(t, common.BatchNum(3), txsel.localAccountsDB.CurrentBatch())
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assert.Equal(t, common.Idx(257), txsel.localAccountsDB.CurrentIdx())
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checkBalance(t, tc, txsel, "A", 0, "500")
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checkBalance(t, tc, txsel, "C", 1, "0")
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log.Debug("block:0 batch:3")
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l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[3].Batch.ForgeL1TxsNum])
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_, _, oL1UserTxs, oL1CoordTxs, oL2Txs, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs)
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require.NoError(t, err)
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assert.Equal(t, 1, len(oL1UserTxs))
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assert.Equal(t, 0, len(oL1CoordTxs))
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assert.Equal(t, 0, len(oL2Txs))
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assert.Equal(t, common.BatchNum(4), txsel.localAccountsDB.CurrentBatch())
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assert.Equal(t, common.Idx(258), txsel.localAccountsDB.CurrentIdx())
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checkBalance(t, tc, txsel, "A", 0, "500")
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checkBalance(t, tc, txsel, "A", 1, "500")
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checkBalance(t, tc, txsel, "C", 1, "0")
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log.Debug("block:0 batch:4")
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l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[4].Batch.ForgeL1TxsNum])
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_, _, oL1UserTxs, oL1CoordTxs, oL2Txs, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs)
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require.NoError(t, err)
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assert.Equal(t, 0, len(oL1UserTxs))
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assert.Equal(t, 0, len(oL1CoordTxs))
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assert.Equal(t, 0, len(oL2Txs))
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assert.Equal(t, common.BatchNum(5), txsel.localAccountsDB.CurrentBatch())
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assert.Equal(t, common.Idx(258), txsel.localAccountsDB.CurrentIdx())
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checkBalance(t, tc, txsel, "A", 0, "500")
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checkBalance(t, tc, txsel, "A", 1, "500")
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checkBalance(t, tc, txsel, "C", 1, "0")
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log.Debug("block:0 batch:5")
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l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[5].Batch.ForgeL1TxsNum])
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_, _, oL1UserTxs, oL1CoordTxs, oL2Txs, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs)
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require.NoError(t, err)
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assert.Equal(t, 1, len(oL1UserTxs))
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assert.Equal(t, 0, len(oL1CoordTxs))
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assert.Equal(t, 0, len(oL2Txs))
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assert.Equal(t, common.BatchNum(6), txsel.localAccountsDB.CurrentBatch())
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assert.Equal(t, common.Idx(259), txsel.localAccountsDB.CurrentIdx())
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checkBalance(t, tc, txsel, "A", 0, "600")
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checkBalance(t, tc, txsel, "A", 1, "500")
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checkBalance(t, tc, txsel, "B", 0, "400")
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checkBalance(t, tc, txsel, "C", 1, "0")
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log.Debug("block:0 batch:6")
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// simulate the PoolL2Txs of the batch6
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batchPoolL2 := `
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Type: PoolL2
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PoolTransfer(1) A-B: 200 (126)
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PoolTransfer(0) B-C: 100 (126)`
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poolL2Txs, err := tc.GeneratePoolL2Txs(batchPoolL2)
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require.NoError(t, err)
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// add AccountCreationAuths that will be used at the next batch
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accAuthSig0 := addAccCreationAuth(t, tc, txsel, chainID, hermezContractAddr, "B")
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accAuthSig1 := addAccCreationAuth(t, tc, txsel, chainID, hermezContractAddr, "C")
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// add ToEthAddr for the corresponent ToIdx, and remove ToIdx for Batches[6].L2Tx
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poolL2Txs[0].ToEthAddr = tc.Users["B"].Addr
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poolL2Txs[0].ToIdx = common.Idx(0)
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poolL2Txs[1].ToEthAddr = tc.Users["C"].Addr
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poolL2Txs[1].ToIdx = common.Idx(0)
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// add the PoolL2Txs to the l2DB
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addL2Txs(t, txsel, poolL2Txs)
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l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[6].Batch.ForgeL1TxsNum])
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coordIdxs, accAuths, oL1UserTxs, oL1CoordTxs, oL2Txs, err := txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs)
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require.NoError(t, err)
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assert.Equal(t, []common.Idx{261, 262}, coordIdxs)
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assert.Equal(t, txsel.coordAccount.AccountCreationAuth, accAuths[0])
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assert.Equal(t, txsel.coordAccount.AccountCreationAuth, accAuths[1])
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assert.Equal(t, accAuthSig0, accAuths[2])
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assert.Equal(t, accAuthSig1, accAuths[3])
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assert.Equal(t, 1, len(oL1UserTxs))
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assert.Equal(t, 4, len(oL1CoordTxs))
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assert.Equal(t, 2, len(oL2Txs))
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assert.Equal(t, len(oL1CoordTxs), len(accAuths))
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assert.Equal(t, common.BatchNum(7), txsel.localAccountsDB.CurrentBatch())
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assert.Equal(t, common.Idx(264), txsel.localAccountsDB.CurrentIdx())
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checkBalanceByIdx(t, txsel, 261, "20") // CoordIdx for TokenID=1
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checkBalanceByIdx(t, txsel, 262, "10") // CoordIdx for TokenID=0
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checkBalance(t, tc, txsel, "A", 0, "600")
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checkBalance(t, tc, txsel, "A", 1, "280")
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checkBalance(t, tc, txsel, "B", 0, "290")
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checkBalance(t, tc, txsel, "B", 1, "200")
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checkBalance(t, tc, txsel, "C", 0, "100")
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checkBalance(t, tc, txsel, "D", 0, "800")
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checkSortedByNonce(t, testAccNonces, oL2Txs)
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err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(poolL2Txs), txsel.localAccountsDB.CurrentBatch())
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require.NoError(t, err)
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log.Debug("block:0 batch:7")
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// simulate the PoolL2Txs of the batch7
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batchPoolL2 = `
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Type: PoolL2
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PoolTransfer(0) A-B: 100 (126)
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PoolTransfer(0) C-A: 50 (126)
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PoolTransfer(1) B-C: 100 (126)
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PoolExit(0) A: 100 (126)`
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poolL2Txs, err = tc.GeneratePoolL2Txs(batchPoolL2)
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require.NoError(t, err)
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addL2Txs(t, txsel, poolL2Txs)
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l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[7].Batch.ForgeL1TxsNum])
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coordIdxs, accAuths, oL1UserTxs, oL1CoordTxs, oL2Txs, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs)
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require.NoError(t, err)
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assert.Equal(t, []common.Idx{261, 262}, coordIdxs)
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assert.Equal(t, 0, len(accAuths))
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assert.Equal(t, 0, len(oL1UserTxs))
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assert.Equal(t, 0, len(oL1CoordTxs))
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assert.Equal(t, 4, len(oL2Txs))
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assert.Equal(t, len(oL1CoordTxs), len(accAuths))
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assert.Equal(t, common.BatchNum(8), txsel.localAccountsDB.CurrentBatch())
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assert.Equal(t, common.Idx(264), txsel.localAccountsDB.CurrentIdx())
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checkBalanceByIdx(t, txsel, 261, "30")
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checkBalanceByIdx(t, txsel, 262, "35")
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checkBalance(t, tc, txsel, "A", 0, "430")
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checkBalance(t, tc, txsel, "A", 1, "280")
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checkBalance(t, tc, txsel, "B", 0, "390")
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checkBalance(t, tc, txsel, "B", 1, "90")
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checkBalance(t, tc, txsel, "C", 0, "45")
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checkBalance(t, tc, txsel, "C", 1, "100")
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checkBalance(t, tc, txsel, "D", 0, "800")
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checkSortedByNonce(t, testAccNonces, oL2Txs)
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err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(poolL2Txs), txsel.localAccountsDB.CurrentBatch())
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require.NoError(t, err)
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log.Debug("block:1 batch:0")
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// simulate the PoolL2Txs of the batch6
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batchPoolL2 = `
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Type: PoolL2
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PoolTransfer(0) D-A: 300 (126)
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PoolTransfer(0) B-D: 100 (126)
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`
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poolL2Txs, err = tc.GeneratePoolL2Txs(batchPoolL2)
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require.NoError(t, err)
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addL2Txs(t, txsel, poolL2Txs)
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l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[1].Rollup.Batches[0].Batch.ForgeL1TxsNum])
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coordIdxs, accAuths, oL1UserTxs, oL1CoordTxs, oL2Txs, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs)
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require.NoError(t, err)
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assert.Equal(t, []common.Idx{262}, coordIdxs)
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assert.Equal(t, 0, len(accAuths))
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assert.Equal(t, 4, len(oL1UserTxs))
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assert.Equal(t, 0, len(oL1CoordTxs))
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assert.Equal(t, 2, len(oL2Txs))
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assert.Equal(t, len(oL1CoordTxs), len(accAuths))
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assert.Equal(t, common.BatchNum(9), txsel.localAccountsDB.CurrentBatch())
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assert.Equal(t, common.Idx(264), txsel.localAccountsDB.CurrentIdx())
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checkBalanceByIdx(t, txsel, 261, "30")
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checkBalanceByIdx(t, txsel, 262, "75")
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checkBalance(t, tc, txsel, "A", 0, "730")
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checkBalance(t, tc, txsel, "A", 1, "280")
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checkBalance(t, tc, txsel, "B", 0, "380")
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|
checkBalance(t, tc, txsel, "B", 1, "90")
|
|
checkBalance(t, tc, txsel, "C", 0, "845")
|
|
checkBalance(t, tc, txsel, "C", 1, "100")
|
|
checkBalance(t, tc, txsel, "D", 0, "470")
|
|
checkSortedByNonce(t, testAccNonces, oL2Txs)
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|
err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(poolL2Txs), txsel.localAccountsDB.CurrentBatch())
|
|
require.NoError(t, err)
|
|
}
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