package txselector import ( "fmt" "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/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/txprocessor" "github.com/jmoiron/sqlx" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) func initTest(t *testing.T, chainID uint16, hermezContractAddr ethCommon.Address, coordUser *til.User) *TxSelector { 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, nil) dir, err := ioutil.TempDir("", "tmpdb") require.NoError(t, err) defer assert.NoError(t, os.RemoveAll(dir)) syncStateDB, err := statedb.NewStateDB(statedb.Config{Path: dir, Keep: 128, Type: statedb.TypeTxSelector, 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 := &CoordAccount{ Addr: coordUser.Addr, BJJ: coordUser.BJJ.Public().Compress(), AccountCreationAuth: nil, } // fmt.Printf("%v\n", coordAccount) 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 := NewTxSelector(coordAccount, txselDir, syncStateDB, l2DB) require.NoError(t, err) test.WipeDB(txsel.l2db.DB()) return txsel } func addAccCreationAuth(t *testing.T, tc *til.Context, txsel *TxSelector, 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 = txsel.l2db.AddAccountCreationAuth(auth) assert.NoError(t, err) return auth.Signature } func addL2Txs(t *testing.T, txsel *TxSelector, poolL2Txs []common.PoolL2Tx) { for i := 0; i < len(poolL2Txs); i++ { err := txsel.l2db.AddTxTest(&poolL2Txs[i]) if err != nil { log.Error(err) } require.NoError(t, err) } } 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, nil) assert.NoError(t, hdb.AddBlock(&common.Block{ Num: 1, })) assert.NoError(t, hdb.AddTokens(tokens)) } func checkBalance(t *testing.T, tc *til.Context, txsel *TxSelector, username string, tokenid int, expected string) { // Accounts.Idx does not match with the TxSelector tests as we are not // using the Til L1CoordinatorTxs (as are generated by the TxSelector // itself when processing the txs, so the Idxs does not match the Til // idxs). But the Idx is obtained through StateDB.GetIdxByEthAddrBJJ user := tc.Users[username] idx, err := txsel.localAccountsDB.GetIdxByEthAddrBJJ(user.Addr, user.BJJ.Public().Compress(), common.TokenID(tokenid)) require.NoError(t, err) checkBalanceByIdx(t, txsel, idx, expected) } func checkBalanceByIdx(t *testing.T, txsel *TxSelector, idx common.Idx, expected string) { acc, err := txsel.localAccountsDB.GetAccount(idx) require.NoError(t, err) assert.Equal(t, expected, acc.Balance.String()) } // checkSortedByNonce takes as input testAccNonces map, and the array of // common.PoolL2Txs, and checks if the nonces correspond to the accumulated // values of the map. Also increases the Nonces computed on the map. func checkSortedByNonce(t *testing.T, testAccNonces map[common.Idx]common.Nonce, txs []common.PoolL2Tx) { for _, tx := range txs { assert.True(t, testAccNonces[tx.FromIdx] == tx.Nonce, fmt.Sprintf("Idx: %d, expected: %d, tx.Nonce: %d", tx.FromIdx, testAccNonces[tx.FromIdx], tx.Nonce)) testAccNonces[tx.FromIdx] = testAccNonces[tx.FromIdx] + 1 } } func TestGetL2TxSelectionMinimumFlow0(t *testing.T) { chainID := uint16(0) 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) assert.NoError(t, err) hermezContractAddr := ethCommon.HexToAddress("0xc344E203a046Da13b0B4467EB7B3629D0C99F6E6") txsel := initTest(t, chainID, hermezContractAddr, tc.Users["Coord"]) // restart nonces of TilContext, as will be set by generating directly // the PoolL2Txs for each specific batch with tc.GeneratePoolL2Txs tc.RestartNonces() testAccNonces := make(map[common.Idx]common.Nonce) // add tokens to HistoryDB to avoid breaking FK constrains addTokens(t, tc, txsel.l2db.DB()) tpc := txprocessor.Config{ NLevels: 16, MaxFeeTx: 10, MaxTx: 20, MaxL1Tx: 10, ChainID: chainID, } selectionConfig := &SelectionConfig{ MaxL1UserTxs: 5, TxProcessorConfig: tpc, } // coordIdxs, accAuths, l1UserTxs, l1CoordTxs, l2Txs, err log.Debug("block:0 batch:1") l1UserTxs := []common.L1Tx{} _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, _, err := txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 0, len(oL1UserTxs)) assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 0, len(oL2Txs)) assert.Equal(t, common.BatchNum(1), txsel.localAccountsDB.CurrentBatch()) assert.Equal(t, common.Idx(255), txsel.localAccountsDB.CurrentIdx()) log.Debug("block:0 batch:2") l1UserTxs = []common.L1Tx{} _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, _, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 0, len(oL1UserTxs)) assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 0, len(oL2Txs)) assert.Equal(t, common.BatchNum(2), txsel.localAccountsDB.CurrentBatch()) assert.Equal(t, common.Idx(255), txsel.localAccountsDB.CurrentIdx()) log.Debug("block:0 batch:3") l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[2].Batch.ForgeL1TxsNum]) _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, _, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 2, len(oL1UserTxs)) assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 0, len(oL2Txs)) assert.Equal(t, common.BatchNum(3), txsel.localAccountsDB.CurrentBatch()) assert.Equal(t, common.Idx(257), txsel.localAccountsDB.CurrentIdx()) checkBalance(t, tc, txsel, "A", 0, "500") checkBalance(t, tc, txsel, "C", 1, "0") log.Debug("block:0 batch:4") l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[3].Batch.ForgeL1TxsNum]) _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, _, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 1, len(oL1UserTxs)) assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 0, len(oL2Txs)) assert.Equal(t, common.BatchNum(4), txsel.localAccountsDB.CurrentBatch()) assert.Equal(t, common.Idx(258), txsel.localAccountsDB.CurrentIdx()) checkBalance(t, tc, txsel, "A", 0, "500") checkBalance(t, tc, txsel, "A", 1, "500") checkBalance(t, tc, txsel, "C", 1, "0") log.Debug("block:0 batch:5") l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[4].Batch.ForgeL1TxsNum]) _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, _, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 0, len(oL1UserTxs)) assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 0, len(oL2Txs)) assert.Equal(t, common.BatchNum(5), txsel.localAccountsDB.CurrentBatch()) assert.Equal(t, common.Idx(258), txsel.localAccountsDB.CurrentIdx()) checkBalance(t, tc, txsel, "A", 0, "500") checkBalance(t, tc, txsel, "A", 1, "500") checkBalance(t, tc, txsel, "C", 1, "0") log.Debug("block:0 batch:6") l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[5].Batch.ForgeL1TxsNum]) _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, _, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 1, len(oL1UserTxs)) assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 0, len(oL2Txs)) assert.Equal(t, common.BatchNum(6), txsel.localAccountsDB.CurrentBatch()) assert.Equal(t, common.Idx(259), txsel.localAccountsDB.CurrentIdx()) checkBalance(t, tc, txsel, "A", 0, "600") checkBalance(t, tc, txsel, "A", 1, "500") checkBalance(t, tc, txsel, "B", 0, "400") checkBalance(t, tc, txsel, "C", 1, "0") log.Debug("block:0 batch:7") // simulate the PoolL2Txs of the batch7 batchPoolL2 := ` Type: PoolL2 PoolTransferToEthAddr(1) A-B: 200 (126) PoolTransferToEthAddr(0) B-C: 100 (126)` poolL2Txs, err := tc.GeneratePoolL2Txs(batchPoolL2) require.NoError(t, err) // add AccountCreationAuths that will be used at the next batch accAuthSig0 := addAccCreationAuth(t, tc, txsel, chainID, hermezContractAddr, "B") accAuthSig1 := addAccCreationAuth(t, tc, txsel, chainID, hermezContractAddr, "C") // add the PoolL2Txs to the l2DB addL2Txs(t, txsel, poolL2Txs) // check signatures of L2Txs from the L2DB (to check that the // parameters of the PoolL2Tx match the original parameters signed // before inserting it to the L2DB) l2TxsFromDB, err := txsel.l2db.GetPendingTxs() require.NoError(t, err) assert.True(t, l2TxsFromDB[0].VerifySignature(chainID, tc.Users["A"].BJJ.Public().Compress())) assert.True(t, l2TxsFromDB[1].VerifySignature(chainID, tc.Users["B"].BJJ.Public().Compress())) l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[6].Batch.ForgeL1TxsNum]) coordIdxs, accAuths, oL1UserTxs, oL1CoordTxs, oL2Txs, _, err := txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, []common.Idx{261, 262}, coordIdxs) assert.Equal(t, txsel.coordAccount.AccountCreationAuth, accAuths[0]) assert.Equal(t, txsel.coordAccount.AccountCreationAuth, accAuths[1]) assert.Equal(t, accAuthSig0, accAuths[2]) assert.Equal(t, accAuthSig1, accAuths[3]) assert.Equal(t, 1, len(oL1UserTxs)) assert.Equal(t, 4, len(oL1CoordTxs)) assert.Equal(t, 2, len(oL2Txs)) assert.Equal(t, len(oL1CoordTxs), len(accAuths)) assert.Equal(t, common.BatchNum(7), txsel.localAccountsDB.CurrentBatch()) assert.Equal(t, common.Idx(264), txsel.localAccountsDB.CurrentIdx()) checkBalanceByIdx(t, txsel, 261, "20") // CoordIdx for TokenID=1 checkBalanceByIdx(t, txsel, 262, "10") // CoordIdx for TokenID=0 checkBalance(t, tc, txsel, "A", 0, "600") checkBalance(t, tc, txsel, "A", 1, "280") checkBalance(t, tc, txsel, "B", 0, "290") checkBalance(t, tc, txsel, "B", 1, "200") checkBalance(t, tc, txsel, "C", 0, "100") checkBalance(t, tc, txsel, "D", 0, "800") checkSortedByNonce(t, testAccNonces, oL2Txs) err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(poolL2Txs), txsel.localAccountsDB.CurrentBatch()) 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)` poolL2Txs, err = tc.GeneratePoolL2Txs(batchPoolL2) require.NoError(t, err) addL2Txs(t, txsel, poolL2Txs) // check signatures of L2Txs from the L2DB (to check that the // parameters of the PoolL2Tx match the original parameters signed // before inserting it to the L2DB) l2TxsFromDB, err = txsel.l2db.GetPendingTxs() require.NoError(t, err) assert.True(t, l2TxsFromDB[0].VerifySignature(chainID, tc.Users["A"].BJJ.Public().Compress())) assert.True(t, l2TxsFromDB[1].VerifySignature(chainID, tc.Users["C"].BJJ.Public().Compress())) assert.True(t, l2TxsFromDB[2].VerifySignature(chainID, tc.Users["B"].BJJ.Public().Compress())) assert.True(t, l2TxsFromDB[3].VerifySignature(chainID, tc.Users["A"].BJJ.Public().Compress())) l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[7].Batch.ForgeL1TxsNum]) coordIdxs, accAuths, oL1UserTxs, oL1CoordTxs, oL2Txs, _, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, []common.Idx{261, 262}, coordIdxs) assert.Equal(t, 0, len(accAuths)) assert.Equal(t, 0, len(oL1UserTxs)) assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 4, len(oL2Txs)) assert.Equal(t, len(oL1CoordTxs), len(accAuths)) assert.Equal(t, common.BatchNum(8), txsel.localAccountsDB.CurrentBatch()) assert.Equal(t, common.Idx(264), txsel.localAccountsDB.CurrentIdx()) checkBalanceByIdx(t, txsel, 261, "30") checkBalanceByIdx(t, txsel, 262, "35") checkBalance(t, tc, txsel, "A", 0, "430") checkBalance(t, tc, txsel, "A", 1, "280") checkBalance(t, tc, txsel, "B", 0, "390") checkBalance(t, tc, txsel, "B", 1, "90") checkBalance(t, tc, txsel, "C", 0, "45") checkBalance(t, tc, txsel, "C", 1, "100") checkBalance(t, tc, txsel, "D", 0, "800") checkSortedByNonce(t, testAccNonces, oL2Txs) err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(poolL2Txs), txsel.localAccountsDB.CurrentBatch()) 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) ` poolL2Txs, err = tc.GeneratePoolL2Txs(batchPoolL2) require.NoError(t, err) addL2Txs(t, txsel, poolL2Txs) // check signatures of L2Txs from the L2DB (to check that the // parameters of the PoolL2Tx match the original parameters signed // before inserting it to the L2DB) l2TxsFromDB, err = txsel.l2db.GetPendingTxs() require.NoError(t, err) assert.True(t, l2TxsFromDB[0].VerifySignature(chainID, tc.Users["D"].BJJ.Public().Compress())) assert.True(t, l2TxsFromDB[1].VerifySignature(chainID, tc.Users["B"].BJJ.Public().Compress())) l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[1].Rollup.Batches[0].Batch.ForgeL1TxsNum]) coordIdxs, accAuths, oL1UserTxs, oL1CoordTxs, oL2Txs, _, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, []common.Idx{262}, coordIdxs) assert.Equal(t, 0, len(accAuths)) assert.Equal(t, 4, len(oL1UserTxs)) assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 2, len(oL2Txs)) assert.Equal(t, len(oL1CoordTxs), len(accAuths)) assert.Equal(t, common.BatchNum(9), txsel.localAccountsDB.CurrentBatch()) assert.Equal(t, common.Idx(264), txsel.localAccountsDB.CurrentIdx()) checkBalanceByIdx(t, txsel, 261, "30") checkBalanceByIdx(t, txsel, 262, "75") checkBalance(t, tc, txsel, "A", 0, "730") checkBalance(t, tc, txsel, "A", 1, "280") checkBalance(t, tc, txsel, "B", 0, "380") 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) err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(poolL2Txs), txsel.localAccountsDB.CurrentBatch()) require.NoError(t, err) } func TestPoolL2TxsWithoutEnoughBalance(t *testing.T) { set := ` Type: Blockchain CreateAccountDeposit(0) Coord: 0 CreateAccountDeposit(0) A: 100 CreateAccountDeposit(0) B: 100 > batchL1 // freeze L1User{1} > batchL1 // forge L1User{1} > block ` chainID := uint16(0) 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(set) assert.NoError(t, err) hermezContractAddr := ethCommon.HexToAddress("0xc344E203a046Da13b0B4467EB7B3629D0C99F6E6") txsel := initTest(t, chainID, hermezContractAddr, tc.Users["Coord"]) // restart nonces of TilContext, as will be set by generating directly // the PoolL2Txs for each specific batch with tc.GeneratePoolL2Txs tc.RestartNonces() tpc := txprocessor.Config{ NLevels: 16, MaxFeeTx: 10, MaxTx: 20, MaxL1Tx: 10, ChainID: chainID, } selectionConfig := &SelectionConfig{ MaxL1UserTxs: 5, TxProcessorConfig: tpc, } // batch1 l1UserTxs := []common.L1Tx{} _, _, _, _, _, _, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) expectedTxID0 := "0x0248bae02b5c8c3847d312bfac3a33ae790616e888f2f711f22aeaff007cde92c2" // 1st TransferToEthAddr expectedTxID1 := "0x0249af018311a393c337ab9174ca2466cba489e49942b4ca4e5c530903671c4aef" // 1st Exit expectedTxID2 := "0x0228b93a261a0cdc62f35588c03bd179d31a0807c28afffdb6a7aaf0c4f017e4cf" // 2nd TransferToEthAddr // batch2 // prepare the PoolL2Txs batchPoolL2 := ` Type: PoolL2 PoolTransferToEthAddr(0) A-B: 100 (126) PoolExit(0) B: 100 (126)` poolL2Txs, err := tc.GeneratePoolL2Txs(batchPoolL2) require.NoError(t, err) // add the PoolL2Txs to the l2DB addL2Txs(t, txsel, poolL2Txs) l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[1].Batch.ForgeL1TxsNum]) _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, discardedL2Txs, err := txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 3, len(oL1UserTxs)) assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 0, len(oL2Txs)) // should be 0 as the 2 PoolL2Txs does not have enough funds assert.Equal(t, 2, len(discardedL2Txs)) assert.Equal(t, expectedTxID0, discardedL2Txs[0].TxID.String()) assert.Equal(t, expectedTxID1, discardedL2Txs[1].TxID.String()) err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(oL2Txs), txsel.localAccountsDB.CurrentBatch()) require.NoError(t, err) // as the PoolL2Txs have not been really processed, restart nonces tc.RestartNonces() // batch3 // NOTE: this batch will result with 1 L2Tx, as the PoolExit tx is not // possible, as the PoolTransferToEthAddr is not processed yet when // checking availability of PoolExit. This, in a near-future iteration // of the TxSelector will return the 2 transactions as valid and // selected, as the TxSelector will handle this kind of combinations. batchPoolL2 = ` Type: PoolL2 PoolTransferToEthAddr(0) A-B: 50 (126)` poolL2Txs, err = tc.GeneratePoolL2Txs(batchPoolL2) require.NoError(t, err) addL2Txs(t, txsel, poolL2Txs) l1UserTxs = []common.L1Tx{} _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, discardedL2Txs, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 0, len(oL1UserTxs)) assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 1, len(oL2Txs)) // see 'NOTE' at the beginning of 'batch3' of this test assert.Equal(t, 2, len(discardedL2Txs)) assert.Equal(t, expectedTxID2, oL2Txs[0].TxID.String()) assert.Equal(t, expectedTxID0, discardedL2Txs[0].TxID.String()) assert.Equal(t, expectedTxID1, discardedL2Txs[1].TxID.String()) assert.Equal(t, common.TxTypeTransferToEthAddr, oL2Txs[0].Type) err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(oL2Txs), txsel.localAccountsDB.CurrentBatch()) require.NoError(t, err) // batch4 // make the selection of another batch, which should include the // initial PoolExit, which now is valid as B has enough Balance l1UserTxs = []common.L1Tx{} _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, discardedL2Txs, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 0, len(oL1UserTxs)) assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 1, len(oL2Txs)) assert.Equal(t, 1, len(discardedL2Txs)) assert.Equal(t, expectedTxID1, oL2Txs[0].TxID.String()) // the Exit that was not accepted at the batch2 assert.Equal(t, expectedTxID0, discardedL2Txs[0].TxID.String()) assert.Equal(t, common.TxTypeExit, oL2Txs[0].Type) err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(oL2Txs), txsel.localAccountsDB.CurrentBatch()) require.NoError(t, err) } func TestTransferToBjj(t *testing.T) { set := ` Type: Blockchain AddToken(1) CreateAccountDeposit(0) Coord: 0 CreateAccountDeposit(0) A: 1000 CreateAccountDeposit(0) B: 1000 CreateAccountDeposit(1) B: 1000 > batchL1 // freeze L1User{1} > batchL1 // forge L1User{1} > block ` chainID := uint16(0) tc := til.NewContext(chainID, common.RollupConstMaxL1UserTx) blocks, err := tc.GenerateBlocks(set) assert.NoError(t, err) hermezContractAddr := ethCommon.HexToAddress("0xc344E203a046Da13b0B4467EB7B3629D0C99F6E6") txsel := initTest(t, chainID, hermezContractAddr, tc.Users["Coord"]) // restart nonces of TilContext, as will be set by generating directly // the PoolL2Txs for each specific batch with tc.GeneratePoolL2Txs tc.RestartNonces() addTokens(t, tc, txsel.l2db.DB()) tpc := txprocessor.Config{ NLevels: 16, MaxFeeTx: 10, MaxTx: 20, MaxL1Tx: 10, ChainID: chainID, } selectionConfig := &SelectionConfig{ MaxL1UserTxs: 5, TxProcessorConfig: tpc, } // batch1 to create some accounts with positive balance l1UserTxs := []common.L1Tx{} _, _, _, _, _, _, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) // Transfer is ToBJJ to a BJJ-only account that doesn't exist // and the coordinator will create it via L1CoordTx. batchPoolL2 := ` Type: PoolL2 PoolTransferToBJJ(0) A-B: 50 (126) ` poolL2Txs, err := tc.GeneratePoolL2Txs(batchPoolL2) require.NoError(t, err) // add the PoolL2Txs to the l2DB addL2Txs(t, txsel, poolL2Txs) l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[1].Batch.ForgeL1TxsNum]) _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, discardedL2Txs, err := txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 4, len(oL1UserTxs)) // We expect the coordinator to add an L1CoordTx to create an account for the recipient of the l2tx require.Equal(t, 1, len(oL1CoordTxs)) assert.Equal(t, poolL2Txs[0].ToEthAddr, oL1CoordTxs[0].FromEthAddr) assert.Equal(t, poolL2Txs[0].ToBJJ, oL1CoordTxs[0].FromBJJ) // fmt.Printf("DBG l1CoordTx[0]: %+v\n", oL1CoordTxs[0]) assert.Equal(t, 1, len(oL2Txs)) assert.Equal(t, 0, len(discardedL2Txs)) err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(oL2Txs), txsel.localAccountsDB.CurrentBatch()) require.NoError(t, err) // Now the BJJ-only account for B is already created, so the transfer // happens without an L1CoordTx that creates the user account. batchPoolL2 = ` Type: PoolL2 PoolTransferToBJJ(0) A-B: 50 (126) ` poolL2Txs, err = tc.GeneratePoolL2Txs(batchPoolL2) require.NoError(t, err) addL2Txs(t, txsel, poolL2Txs) l1UserTxs = []common.L1Tx{} _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, discardedL2Txs, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 0, len(oL1UserTxs)) // Since the BJJ-only account B already exists, the coordinator doesn't add any L1CoordTxs assert.Equal(t, 0, len(oL1CoordTxs)) assert.Equal(t, 1, len(oL2Txs)) assert.Equal(t, 0, len(discardedL2Txs)) err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(oL2Txs), txsel.localAccountsDB.CurrentBatch()) require.NoError(t, err) // The transfer now is ToBJJ to a BJJ-only account that doesn't exist // and the coordinator will create it via L1CoordTx. Since it's a // transfer of a token for which the coordinator doesn't have a fee // account, another L1CoordTx will be created for the coordinator to // receive the fees. batchPoolL2 = ` Type: PoolL2 PoolTransferToBJJ(1) B-A: 50 (126) ` poolL2Txs, err = tc.GeneratePoolL2Txs(batchPoolL2) require.NoError(t, err) addL2Txs(t, txsel, poolL2Txs) l1UserTxs = []common.L1Tx{} _, _, oL1UserTxs, oL1CoordTxs, oL2Txs, discardedL2Txs, err = txsel.GetL1L2TxSelection(selectionConfig, l1UserTxs) require.NoError(t, err) assert.Equal(t, 0, len(oL1UserTxs)) // We expect the coordinator to add an L1CoordTx to create an account // to receive the fees by the coordinator and another one for the // recipient of the l2tx assert.Equal(t, 2, len(oL1CoordTxs)) // [0] Coordinator account cration for token 1 assert.Equal(t, tc.Users["Coord"].Addr, oL1CoordTxs[0].FromEthAddr) // [1] User A BJJ-only account creation for token 1 assert.Equal(t, poolL2Txs[0].ToEthAddr, oL1CoordTxs[1].FromEthAddr) assert.Equal(t, poolL2Txs[0].ToBJJ, oL1CoordTxs[1].FromBJJ) assert.Equal(t, common.TokenID(1), oL1CoordTxs[1].TokenID) assert.Equal(t, 1, len(oL2Txs)) assert.Equal(t, 0, len(discardedL2Txs)) err = txsel.l2db.StartForging(common.TxIDsFromPoolL2Txs(oL2Txs), txsel.localAccountsDB.CurrentBatch()) require.NoError(t, err) }