test(driver): add depositsRoot tests (#234)

driver/chain_syncer/calldata/syncer_test.go

@@ -146,6 +146,17 @@ func (s *CalldataSyncerTestSuite) TestHandleReorgToNoneGenesis() {
 	s.Greater(s.s.lastInsertedBlockID.Uint64(), uint64(1))
 }
 
+func (s *CalldataSyncerTestSuite) TestWithdrawRootCalculation() {
+	events := testutils.ProposeAndInsertEmptyBlocks(&s.ClientTestSuite, s.p, s.s)
+
+	for _, e := range events {
+		header, err := s.s.rpc.L2.HeaderByNumber(context.Background(), e.Id)
+		s.Nil(err)
+		s.NotEmpty(e.Meta.DepositsRoot)
+		s.Equal(common.BytesToHash(e.Meta.DepositsRoot[:]), *header.WithdrawalsHash)
+	}
+}
+
 func TestCalldataSyncerTestSuite(t *testing.T) {
 	suite.Run(t, new(CalldataSyncerTestSuite))
 }

testutils/helper.go

@@ -4,8 +4,10 @@ import (
 	"context"
 	"math/big"
 	"math/rand"
+	"os"
 	"time"
 
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/core/types"
@@ -65,13 +67,19 @@ func ProposeAndInsertEmptyBlocks(
 		CacheTxListInfo: 0,
 	}, encoded, 0))
 
+	DepositEtherToL2(s)
 	ProposeInvalidTxListBytes(s, proposer)
 
 	// Zero byte txList
+	DepositEtherToL2(s)
 	s.Nil(proposer.ProposeEmptyBlockOp(context.Background()))
 
 	events = append(events, []*bindings.TaikoL1ClientBlockProposed{<-sink, <-sink, <-sink}...)
 
+	for _, e := range events {
+		s.NotEmpty(e.Meta.DepositsRoot)
+	}
+
 	_, isPending, err := s.RpcClient.L1.TransactionByHash(context.Background(), events[len(events)-1].Raw.TxHash)
 	s.Nil(err)
 	s.False(isPending)
@@ -166,6 +174,23 @@ func ProposeAndInsertValidBlock(
 	return event
 }
 
+func DepositEtherToL2(s *ClientTestSuite) {
+	config, err := s.RpcClient.TaikoL1.GetConfig(nil)
+	s.Nil(err)
+
+	l1ProverPrivKey, err := crypto.ToECDSA(common.Hex2Bytes(os.Getenv("L1_PROVER_PRIVATE_KEY")))
+	s.Nil(err)
+
+	opts, err := bind.NewKeyedTransactorWithChainID(l1ProverPrivKey, s.RpcClient.L1ChainID)
+	s.Nil(err)
+	opts.Value = config.MinEthDepositAmount
+
+	for i := 0; i < int(config.MinEthDepositsPerBlock); i++ {
+		_, err = s.RpcClient.TaikoL1.DepositEtherToL2(opts)
+		s.Nil(err)
+	}
+}
+
 // RandomHash generates a random blob of data and returns it as a hash.
 func RandomHash() common.Hash {
 	var hash common.Hash