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package til
import ( "math/big" "testing"
"github.com/hermeznetwork/hermez-node/common" "github.com/hermeznetwork/hermez-node/eth" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require")
func TestGenerateBlocks(t *testing.T) { set := ` Type: Blockchain RegisterToken(1) RegisterToken(2) RegisterToken(3) CreateAccountDeposit(1) A: 10 CreateAccountDeposit(2) A: 20 CreateAccountDeposit(1) B: 5 CreateAccountDeposit(1) C: 5 CreateAccountDepositTransfer(1) D-A: 15, 10 (3)
> batchL1 > batchL1
Transfer(1) A-B: 6 (1) Transfer(1) B-D: 3 (1) Transfer(1) A-D: 1 (1)
// set new batch
> batch CreateAccountDepositCoordinator(1) E CreateAccountDepositCoordinator(2) B
DepositTransfer(1) A-B: 15, 10 (1) Transfer(1) C-A : 3 (1) Transfer(2) A-B: 15 (1) Transfer(1) A-E: 1 (1)
CreateAccountDeposit(1) User0: 20 CreateAccountDeposit(3) User1: 20 CreateAccountDepositCoordinator(1) User1 CreateAccountDepositCoordinator(3) User0 > batchL1 Transfer(1) User0-User1: 15 (1) Transfer(3) User1-User0: 15 (1) Transfer(1) A-C: 1 (1)
> batchL1
Transfer(1) User1-User0: 1 (1)
> block
// Exits
Transfer(1) A-B: 1 (1) Exit(1) A: 5 > batch > block
// this transaction should not be generated, as it's after last
// batch and last block
Transfer(1) User1-User0: 1 (1) ` tc := NewContext(eth.RollupConstMaxL1UserTx) blocks, err := tc.GenerateBlocks(set) require.Nil(t, err) assert.Equal(t, 2, len(blocks)) assert.Equal(t, 5, len(blocks[0].Batches)) assert.Equal(t, 1, len(blocks[1].Batches)) assert.Equal(t, 8, len(blocks[0].L1UserTxs)) assert.Equal(t, 4, len(blocks[0].Batches[3].L1CoordinatorTxs)) assert.Equal(t, 0, len(blocks[1].L1UserTxs))
// Check expected values generated by each line
// #0: Deposit(1) A: 10
tc.checkL1TxParams(t, blocks[0].L1UserTxs[0], common.TxTypeCreateAccountDeposit, 1, "A", "", big.NewInt(10), nil) // #1: Deposit(2) A: 20
tc.checkL1TxParams(t, blocks[0].L1UserTxs[1], common.TxTypeCreateAccountDeposit, 2, "A", "", big.NewInt(20), nil) // // #2: Deposit(1) A: 20
tc.checkL1TxParams(t, blocks[0].L1UserTxs[2], common.TxTypeCreateAccountDeposit, 1, "B", "", big.NewInt(5), nil) // // #3: CreateAccountDeposit(1) C: 5
tc.checkL1TxParams(t, blocks[0].L1UserTxs[3], common.TxTypeCreateAccountDeposit, 1, "C", "", big.NewInt(5), nil) // // #4: CreateAccountDepositTransfer(1) D-A: 15, 10 (3)
tc.checkL1TxParams(t, blocks[0].L1UserTxs[4], common.TxTypeCreateAccountDepositTransfer, 1, "D", "A", big.NewInt(15), big.NewInt(10)) // #5: Transfer(1) A-B: 6 (1)
tc.checkL2TxParams(t, blocks[0].Batches[2].L2Txs[0], common.TxTypeTransfer, 1, "A", "B", big.NewInt(6), common.BatchNum(2), common.Nonce(1)) // #6: Transfer(1) B-D: 3 (1)
tc.checkL2TxParams(t, blocks[0].Batches[2].L2Txs[1], common.TxTypeTransfer, 1, "B", "D", big.NewInt(3), common.BatchNum(2), common.Nonce(1)) // #7: Transfer(1) A-D: 1 (1)
tc.checkL2TxParams(t, blocks[0].Batches[2].L2Txs[2], common.TxTypeTransfer, 1, "A", "D", big.NewInt(1), common.BatchNum(2), common.Nonce(2)) // change of Batch
// #8: DepositTransfer(1) A-B: 15, 10 (1)
tc.checkL1TxParams(t, blocks[0].L1UserTxs[5], common.TxTypeDepositTransfer, 1, "A", "B", big.NewInt(15), big.NewInt(10)) // #10: Transfer(1) C-A : 3 (1)
tc.checkL2TxParams(t, blocks[0].Batches[3].L2Txs[0], common.TxTypeTransfer, 1, "C", "A", big.NewInt(3), common.BatchNum(3), common.Nonce(1)) // #11: Transfer(2) A-B: 15 (1)
tc.checkL2TxParams(t, blocks[0].Batches[3].L2Txs[1], common.TxTypeTransfer, 2, "A", "B", big.NewInt(15), common.BatchNum(3), common.Nonce(1)) // #12: Deposit(1) User0: 20
tc.checkL1TxParams(t, blocks[0].L1UserTxs[6], common.TxTypeCreateAccountDeposit, 1, "User0", "", big.NewInt(20), nil) // // #13: Deposit(3) User1: 20
tc.checkL1TxParams(t, blocks[0].L1UserTxs[7], common.TxTypeCreateAccountDeposit, 3, "User1", "", big.NewInt(20), nil) // #14: Transfer(1) User0-User1: 15 (1)
tc.checkL2TxParams(t, blocks[0].Batches[4].L2Txs[0], common.TxTypeTransfer, 1, "User0", "User1", big.NewInt(15), common.BatchNum(4), common.Nonce(1)) // #15: Transfer(3) User1-User0: 15 (1)
tc.checkL2TxParams(t, blocks[0].Batches[4].L2Txs[1], common.TxTypeTransfer, 3, "User1", "User0", big.NewInt(15), common.BatchNum(4), common.Nonce(1)) // #16: Transfer(1) A-C: 1 (1)
tc.checkL2TxParams(t, blocks[0].Batches[4].L2Txs[2], common.TxTypeTransfer, 1, "A", "C", big.NewInt(1), common.BatchNum(4), common.Nonce(4)) // change of Batch
// #17: Transfer(1) User1-User0: 1 (1)
tc.checkL2TxParams(t, blocks[1].Batches[0].L2Txs[0], common.TxTypeTransfer, 1, "User1", "User0", big.NewInt(1), common.BatchNum(5), common.Nonce(1)) // change of Block (implies also a change of batch)
// #18: Transfer(1) A-B: 1 (1)
tc.checkL2TxParams(t, blocks[1].Batches[0].L2Txs[1], common.TxTypeTransfer, 1, "A", "B", big.NewInt(1), common.BatchNum(5), common.Nonce(5))}
func (tc *Context) checkL1TxParams(t *testing.T, tx common.L1Tx, typ common.TxType, tokenID common.TokenID, from, to string, loadAmount, amount *big.Int) { assert.Equal(t, typ, tx.Type) if tx.FromIdx != common.Idx(0) { assert.Equal(t, tc.Users[from].Accounts[tokenID].Idx, tx.FromIdx) } assert.Equal(t, tc.Users[from].Addr.Hex(), tx.FromEthAddr.Hex()) assert.Equal(t, tc.Users[from].BJJ.Public(), tx.FromBJJ) if tx.ToIdx != common.Idx(0) { assert.Equal(t, tc.Users[to].Accounts[tokenID].Idx, tx.ToIdx) } if loadAmount != nil { assert.Equal(t, loadAmount, tx.LoadAmount) } if amount != nil { assert.Equal(t, amount, tx.Amount) }}func (tc *Context) checkL2TxParams(t *testing.T, tx common.L2Tx, typ common.TxType, tokenID common.TokenID, from, to string, amount *big.Int, batchNum common.BatchNum, nonce common.Nonce) { assert.Equal(t, typ, tx.Type) assert.Equal(t, tc.Users[from].Accounts[tokenID].Idx, tx.FromIdx) if tx.Type != common.TxTypeExit { assert.Equal(t, tc.Users[to].Accounts[tokenID].Idx, tx.ToIdx) } if amount != nil { assert.Equal(t, amount, tx.Amount) } assert.Equal(t, batchNum, tx.BatchNum) assert.Equal(t, nonce, tx.Nonce)}
func TestGeneratePoolL2Txs(t *testing.T) { set := ` Type: Blockchain RegisterToken(1) RegisterToken(2) RegisterToken(3) CreateAccountDeposit(1) A: 10 CreateAccountDeposit(2) A: 20 CreateAccountDeposit(1) B: 5 CreateAccountDeposit(1) C: 5 CreateAccountDeposit(1) User0: 5 CreateAccountDeposit(1) User1: 0 CreateAccountDeposit(3) User0: 0 CreateAccountDeposit(3) User1: 5 CreateAccountDeposit(2) B: 5 CreateAccountDeposit(2) D: 0 > batchL1 > batchL1 ` tc := NewContext(eth.RollupConstMaxL1UserTx) _, err := tc.GenerateBlocks(set) require.Nil(t, err) set = ` Type: PoolL2 PoolTransfer(1) A-B: 6 (1) PoolTransfer(1) B-C: 3 (1) PoolTransfer(1) C-A: 3 (1) PoolTransfer(1) A-B: 1 (1) PoolTransfer(2) A-B: 15 (1) PoolTransfer(1) User0-User1: 15 (1) PoolTransfer(3) User1-User0: 15 (1) PoolTransfer(2) B-D: 3 (1) PoolExit(1) A: 3 ` poolL2Txs, err := tc.GeneratePoolL2Txs(set) require.Nil(t, err) assert.Equal(t, 9, len(poolL2Txs)) assert.Equal(t, common.TxTypeTransfer, poolL2Txs[0].Type) assert.Equal(t, common.TxTypeExit, poolL2Txs[8].Type) assert.Equal(t, tc.Users["B"].Addr.Hex(), poolL2Txs[0].ToEthAddr.Hex()) assert.Equal(t, tc.Users["B"].BJJ.Public().String(), poolL2Txs[0].ToBJJ.String()) assert.Equal(t, tc.Users["User1"].Addr.Hex(), poolL2Txs[5].ToEthAddr.Hex()) assert.Equal(t, tc.Users["User1"].BJJ.Public().String(), poolL2Txs[5].ToBJJ.String())
assert.Equal(t, common.Nonce(1), poolL2Txs[0].Nonce) assert.Equal(t, common.Nonce(2), poolL2Txs[3].Nonce) assert.Equal(t, common.Nonce(3), poolL2Txs[8].Nonce)
// load another set in the same Context
set = ` Type: PoolL2 PoolTransfer(1) A-B: 6 (1) PoolTransfer(1) B-C: 3 (1) PoolTransfer(1) A-C: 3 (1) ` poolL2Txs, err = tc.GeneratePoolL2Txs(set) require.Nil(t, err) assert.Equal(t, common.Nonce(4), poolL2Txs[0].Nonce) assert.Equal(t, common.Nonce(2), poolL2Txs[1].Nonce) assert.Equal(t, common.Nonce(5), poolL2Txs[2].Nonce)}
func TestGenerateErrors(t *testing.T) { // unregistered token
set := `Type: Blockchain CreateAccountDeposit(1) A: 5 > batchL1 ` tc := NewContext(eth.RollupConstMaxL1UserTx) _, err := tc.GenerateBlocks(set) assert.Equal(t, "Line 2: Can not process CreateAccountDeposit: TokenID 1 not registered, last registered TokenID: 0", err.Error())
// ensure RegisterToken sequentiality and not using 0
set = ` Type: Blockchain RegisterToken(0) ` tc = NewContext(eth.RollupConstMaxL1UserTx) _, err = tc.GenerateBlocks(set) require.Equal(t, "Line 2: RegisterToken can not register TokenID 0", err.Error())
set = ` Type: Blockchain RegisterToken(2) ` tc = NewContext(eth.RollupConstMaxL1UserTx) _, err = tc.GenerateBlocks(set) require.Equal(t, "Line 2: RegisterToken TokenID should be sequential, expected TokenID: 1, defined TokenID: 2", err.Error())
set = ` Type: Blockchain RegisterToken(1) RegisterToken(2) RegisterToken(3) RegisterToken(5) ` tc = NewContext(eth.RollupConstMaxL1UserTx) _, err = tc.GenerateBlocks(set) require.Equal(t, "Line 5: RegisterToken TokenID should be sequential, expected TokenID: 4, defined TokenID: 5", err.Error())
// check transactions when account is not created yet
set = ` Type: Blockchain RegisterToken(1) CreateAccountDeposit(1) A: 10 > batchL1 CreateAccountDeposit(1) B Transfer(1) A-B: 6 (1) > batch ` tc = NewContext(eth.RollupConstMaxL1UserTx) _, err = tc.GenerateBlocks(set) require.Equal(t, "Line 5: CreateAccountDeposit(1)BTransfer(1) A-B: 6 (1)\n, err: Expected ':', found 'Transfer'", err.Error()) set = ` Type: Blockchain RegisterToken(1) CreateAccountDeposit(1) A: 10 > batchL1 CreateAccountDepositCoordinator(1) B > batchL1 > batch Transfer(1) A-B: 6 (1) > batch ` tc = NewContext(eth.RollupConstMaxL1UserTx) _, err = tc.GenerateBlocks(set) require.Nil(t, err)
// check nonces
set = ` Type: Blockchain RegisterToken(1) CreateAccountDeposit(1) A: 10 > batchL1 CreateAccountDepositCoordinator(1) B > batchL1 Transfer(1) A-B: 6 (1) Transfer(1) A-B: 6 (1) // on purpose this is moving more money that what it has in the account, Til should not fail
Transfer(1) B-A: 6 (1) Exit(1) A: 3 > batch ` tc = NewContext(eth.RollupConstMaxL1UserTx) _, err = tc.GenerateBlocks(set) require.Nil(t, err) assert.Equal(t, common.Nonce(3), tc.Users["A"].Accounts[common.TokenID(1)].Nonce) assert.Equal(t, common.Idx(256), tc.Users["A"].Accounts[common.TokenID(1)].Idx) assert.Equal(t, common.Nonce(1), tc.Users["B"].Accounts[common.TokenID(1)].Nonce) assert.Equal(t, common.Idx(257), tc.Users["B"].Accounts[common.TokenID(1)].Idx)}
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