Merge pull request #158 from hermeznetwork/feature/ethclient8-sc

Update ethclient contracts & add wdelayer events

eth/auction.go

@@ -281,10 +281,10 @@ type AuctionClient struct {
 }
 
 // NewAuctionClient creates a new AuctionClient.  `tokenAddress` is the address of the HEZ tokens.
-func NewAuctionClient(client *EthereumClient, address, tokenAddress ethCommon.Address) *AuctionClient {
+func NewAuctionClient(client *EthereumClient, address, tokenAddress ethCommon.Address) (*AuctionClient, error) {
 	contractAbi, err := abi.JSON(strings.NewReader(string(HermezAuctionProtocol.HermezAuctionProtocolABI)))
 	if err != nil {
-		fmt.Println(err)
+		return nil, err
 	}
 	return &AuctionClient{
 		client:       client,
@@ -292,7 +292,7 @@ func NewAuctionClient(client *EthereumClient, address, tokenAddress ethCommon.Ad
 		tokenAddress: tokenAddress,
 		gasLimit:     1000000, //nolint:gomnd
 		contractAbi:  contractAbi,
-	}
+	}, nil
 }
 
 // AuctionSetSlotDeadline is the interface to call the smart contract function
@@ -841,6 +841,25 @@ func (c *AuctionClient) AuctionClaimHEZ(claimAddress ethCommon.Address) (*types.
 	return tx, nil
 }
 
+// AuctionForge is the interface to call the smart contract function
+func (c *AuctionClient) AuctionForge(forger ethCommon.Address) (*types.Transaction, error) {
+	var tx *types.Transaction
+	var err error
+	if tx, err = c.client.CallAuth(
+		c.gasLimit,
+		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
+			auction, err := HermezAuctionProtocol.NewHermezAuctionProtocol(c.address, ec)
+			if err != nil {
+				return nil, err
+			}
+			return auction.Forge(auth, forger)
+		},
+	); err != nil {
+		return nil, fmt.Errorf("Failed forge: %w", err)
+	}
+	return tx, nil
+}
+
 // AuctionConstants returns the Constants of the Auction Smart Contract
 func (c *AuctionClient) AuctionConstants() (*AuctionConstants, error) {
 	auctionConstants := new(AuctionConstants)
@@ -939,9 +958,12 @@ var (
 	logHEZClaimed            = crypto.Keccak256Hash([]byte("HEZClaimed(address,uint128)"))
 )
 
-// AuctionEventsByBlock returns the events in a block that happened in the Auction Smart Contract
+// AuctionEventsByBlock returns the events in a block that happened in the
+// Auction Smart Contract and the blockHash where the eents happened.  If there
+// are no events in that block, blockHash is nil.
 func (c *AuctionClient) AuctionEventsByBlock(blockNum int64) (*AuctionEvents, *ethCommon.Hash, error) {
 	var auctionEvents AuctionEvents
+	var blockHash ethCommon.Hash
 
 	query := ethereum.FilterQuery{
 		FromBlock: big.NewInt(blockNum),
@@ -949,15 +971,20 @@ func (c *AuctionClient) AuctionEventsByBlock(blockNum int64) (*AuctionEvents, *e
 		Addresses: []ethCommon.Address{
 			c.address,
 		},
-		BlockHash: nil, // TODO: Maybe we can put the blockHash here to make sure we get the results from the known block.
-		Topics:    [][]ethCommon.Hash{},
+		Topics: [][]ethCommon.Hash{},
 	}
 
 	logs, err := c.client.client.FilterLogs(context.TODO(), query)
 	if err != nil {
-		fmt.Println(err)
+		return nil, nil, err
+	}
+	if len(logs) > 0 {
+		blockHash = logs[0].BlockHash
 	}
 	for _, vLog := range logs {
+		if vLog.BlockHash != blockHash {
+			return nil, nil, ErrBlockHashMismatchEvent
+		}
 		switch vLog.Topics[0] {
 		case logNewBid:
 			var auxNewBid struct {
@@ -1061,5 +1088,5 @@ func (c *AuctionClient) AuctionEventsByBlock(blockNum int64) (*AuctionEvents, *e
 			auctionEvents.HEZClaimed = append(auctionEvents.HEZClaimed, HEZClaimed)
 		}
 	}
-	return &auctionEvents, nil, nil
+	return &auctionEvents, &blockHash, nil
 }

eth/auction_test.go

@@ -1,7 +1,6 @@
 package eth
 
 import (
-	"context"
 	"math/big"
 	"testing"
 
@@ -19,7 +18,8 @@ var allocationRatioConst [3]uint16 = [3]uint16{4000, 4000, 2000}
 
 var auctionClient *AuctionClient
 
-var genesisBlock = 91
+//var genesisBlock = 91
+var genesisBlock = 98
 
 var minBidStr = "10000000000000000000"
 var URL = "http://localhost:3000"
@@ -41,7 +41,7 @@ func TestAuctionConstants(t *testing.T) {
 	require.Nil(t, err)
 	assert.Equal(t, auctionConstants.BlocksPerSlot, BLOCKSPERSLOT)
 	// assert.Equal(t, auctionConstants.GenesisBlockNum, GENESISBLOCKNUM)
-	assert.Equal(t, auctionConstants.HermezRollup, hermezRollupAddressConst)
+	assert.Equal(t, auctionConstants.HermezRollup, hermezRollupAddressTestConst)
 	assert.Equal(t, auctionConstants.InitialMinimalBidding, INITMINBID)
 	assert.Equal(t, auctionConstants.TokenHEZ, tokenHezAddressConst)
 }
@@ -77,8 +77,8 @@ func TestAuctionSetSlotDeadline(t *testing.T) {
 	slotDeadline, err := auctionClient.AuctionGetSlotDeadline()
 	require.Nil(t, err)
 	assert.Equal(t, newSlotDeadline, slotDeadline)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, newSlotDeadline, auctionEvents.NewSlotDeadline[0].NewSlotDeadline)
 }
 
@@ -96,8 +96,8 @@ func TestAuctionSetOpenAuctionSlots(t *testing.T) {
 	openAuctionSlots, err := auctionClient.AuctionGetOpenAuctionSlots()
 	require.Nil(t, err)
 	assert.Equal(t, newOpenAuctionSlots, openAuctionSlots)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, newOpenAuctionSlots, auctionEvents.NewOpenAuctionSlots[0].NewOpenAuctionSlots)
 }
 
@@ -115,8 +115,8 @@ func TestAuctionSetClosedAuctionSlots(t *testing.T) {
 	closedAuctionSlots, err := auctionClient.AuctionGetClosedAuctionSlots()
 	require.Nil(t, err)
 	assert.Equal(t, newClosedAuctionSlots, closedAuctionSlots)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, newClosedAuctionSlots, auctionEvents.NewClosedAuctionSlots[0].NewClosedAuctionSlots)
 	_, err = auctionClient.AuctionSetClosedAuctionSlots(closedAuctionSlots)
 	require.Nil(t, err)
@@ -136,8 +136,8 @@ func TestAuctionSetOutbidding(t *testing.T) {
 	outbidding, err := auctionClient.AuctionGetOutbidding()
 	require.Nil(t, err)
 	assert.Equal(t, newOutbidding, outbidding)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, newOutbidding, auctionEvents.NewOutbidding[0].NewOutbidding)
 	_, err = auctionClient.AuctionSetOutbidding(outbiddingConst)
 	require.Nil(t, err)
@@ -157,8 +157,8 @@ func TestAuctionSetAllocationRatio(t *testing.T) {
 	allocationRatio, err := auctionClient.AuctionGetAllocationRatio()
 	require.Nil(t, err)
 	assert.Equal(t, newAllocationRatio, allocationRatio)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, newAllocationRatio, auctionEvents.NewAllocationRatio[0].NewAllocationRatio)
 	_, err = auctionClient.AuctionSetAllocationRatio(allocationRatioConst)
 	require.Nil(t, err)
@@ -184,8 +184,8 @@ func TestAuctionSetDonationAddress(t *testing.T) {
 	donationAddress, err := auctionClient.AuctionGetDonationAddress()
 	require.Nil(t, err)
 	assert.Equal(t, &newDonationAddress, donationAddress)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, newDonationAddress, auctionEvents.NewDonationAddress[0].NewDonationAddress)
 	_, err = auctionClient.AuctionSetDonationAddress(donationAddressConst)
 	require.Nil(t, err)
@@ -199,8 +199,8 @@ func TestAuctionSetBootCoordinator(t *testing.T) {
 	bootCoordinator, err := auctionClient.AuctionGetBootCoordinator()
 	require.Nil(t, err)
 	assert.Equal(t, &newBootCoordinator, bootCoordinator)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, newBootCoordinator, auctionEvents.NewBootCoordinator[0].NewBootCoordinator)
 	_, err = auctionClient.AuctionSetBootCoordinator(bootCoordinatorAddressConst)
 	require.Nil(t, err)
@@ -233,8 +233,8 @@ func TestAuctionChangeDefaultSlotSetBid(t *testing.T) {
 	minBid, err := auctionClient.AuctionGetDefaultSlotSetBid(set)
 	require.Nil(t, err)
 	assert.Equal(t, minBid, newInitialMinBid)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, slotSet, auctionEvents.NewDefaultSlotSetBid[0].SlotSet)
 	assert.Equal(t, newInitialMinBid, auctionEvents.NewDefaultSlotSetBid[0].NewInitialMinBid)
 	newMinBid := new(big.Int)
@@ -264,8 +264,8 @@ func TestAuctionRegisterCoordinator(t *testing.T) {
 
 	_, err := auctionClient.AuctionRegisterCoordinator(forgerAddress, URL)
 	require.Nil(t, err)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, forgerAddress, auctionEvents.NewCoordinator[0].ForgerAddress)
 	assert.Equal(t, forgerAddress, auctionEvents.NewCoordinator[0].WithdrawalAddress)
 	assert.Equal(t, URL, auctionEvents.NewCoordinator[0].CoordinatorURL)
@@ -284,8 +284,8 @@ func TestAuctionUpdateCoordinatorInfo(t *testing.T) {
 
 	_, err := auctionClient.AuctionUpdateCoordinatorInfo(forgerAddress, forgerAddress, newURL)
 	require.Nil(t, err)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, forgerAddress, auctionEvents.CoordinatorUpdated[0].ForgerAddress)
 	assert.Equal(t, forgerAddress, auctionEvents.CoordinatorUpdated[0].WithdrawalAddress)
 	assert.Equal(t, newURL, auctionEvents.CoordinatorUpdated[0].CoordinatorURL)
@@ -299,8 +299,8 @@ func TestAuctionBid(t *testing.T) {
 	forgerAddress := governanceAddressConst
 	_, err = auctionClient.AuctionBid(currentSlot+4, bidAmount, forgerAddress)
 	require.Nil(t, err)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, bidAmount, auctionEvents.NewBid[0].BidAmount)
 	assert.Equal(t, forgerAddress, auctionEvents.NewBid[0].CoordinatorForger)
 	assert.Equal(t, currentSlot+4, auctionEvents.NewBid[0].Slot)
@@ -337,8 +337,8 @@ func TestAuctionMultiBid(t *testing.T) {
 	forgerAddress := governanceAddressConst
 	_, err = auctionClient.AuctionMultiBid(currentSlot+4, currentSlot+10, slotSet, maxBid, minBid, budget, forgerAddress)
 	require.Nil(t, err)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, forgerAddress, auctionEvents.NewBid[0].CoordinatorForger)
 	assert.Equal(t, currentSlot+4, auctionEvents.NewBid[0].Slot)
 	assert.Equal(t, forgerAddress, auctionEvents.NewBid[1].CoordinatorForger)
@@ -365,8 +365,24 @@ func TestAuctionClaimHEZ(t *testing.T) {
 
 	_, err := auctionClient.AuctionClaimHEZ(governanceAddressConst)
 	require.Nil(t, err)
-	header, _ := auctionClient.client.client.HeaderByNumber(context.Background(), nil)
-	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(header.Number.Int64())
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	auctionEvents, _, _ := auctionClient.AuctionEventsByBlock(currentBlockNum)
 	assert.Equal(t, amount, auctionEvents.HEZClaimed[0].Amount)
 	assert.Equal(t, governanceAddressConst, auctionEvents.HEZClaimed[0].Owner)
 }
+
+func TestAuctionForge(t *testing.T) {
+	auctionClientHermez, err := NewAuctionClient(ethereumClientHermez, auctionAddressConst, tokenHezAddressConst)
+	require.Nil(t, err)
+	slotConst := 4
+	blockNum := int64(int(BLOCKSPERSLOT)*slotConst + genesisBlock)
+	currentBlockNum, _ := auctionClient.client.EthCurrentBlock()
+	blocksToAdd := blockNum - currentBlockNum
+	addBlocks(blocksToAdd, ethClientDialURL)
+	currentBlockNum, _ = auctionClient.client.EthCurrentBlock()
+	assert.Equal(t, currentBlockNum, blockNum)
+	_, err = auctionClientHermez.AuctionForge(bootCoordinatorAddressConst)
+	require.Contains(t, err.Error(), "Can't forge")
+	_, err = auctionClientHermez.AuctionForge(governanceAddressConst)
+	require.Nil(t, err)
+}

eth/ethereum.go

@@ -30,6 +30,9 @@ var (
 	ErrReceiptStatusFailed = fmt.Errorf("receipt status is failed")
 	// ErrReceiptNotReceived is used when unable to retrieve a transaction
 	ErrReceiptNotReceived = fmt.Errorf("receipt not available")
+	// ErrBlockHashMismatchEvent is used when there's a block hash mismatch
+	// beetween different events of the same block
+	ErrBlockHashMismatchEvent = fmt.Errorf("block hash mismatch in event log")
 )
 
 const (

eth/helpers.go

@@ -0,0 +1,63 @@
+package eth
+
+import (
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+)
+
+func addBlock(url string) {
+	method := "POST"
+
+	payload := strings.NewReader("{\n    \"jsonrpc\":\"2.0\",\n    \"method\":\"evm_mine\",\n    \"params\":[],\n    \"id\":1\n}")
+
+	client := &http.Client{}
+	req, err := http.NewRequest(method, url, payload)
+
+	if err != nil {
+		fmt.Println(err)
+	}
+	req.Header.Add("Content-Type", "application/json")
+
+	res, err := client.Do(req)
+	if err != nil {
+		fmt.Println(err)
+	}
+	defer func() {
+		if err := res.Body.Close(); err != nil {
+			fmt.Println("Error when closing:", err)
+		}
+	}()
+}
+
+func addBlocks(numBlocks int64, url string) {
+	for i := int64(0); i < numBlocks; i++ {
+		addBlock(url)
+	}
+}
+
+func addTime(seconds float64, url string) {
+	secondsStr := strconv.FormatFloat(seconds, 'E', -1, 32)
+
+	method := "POST"
+	payload := strings.NewReader("{\n    \"jsonrpc\":\"2.0\",\n    \"method\":\"evm_increaseTime\",\n    \"params\":[" + secondsStr + "],\n    \"id\":1\n}")
+
+	client := &http.Client{}
+	req, err := http.NewRequest(method, url, payload)
+
+	if err != nil {
+		fmt.Println(err)
+	}
+	req.Header.Add("Content-Type", "application/json")
+
+	res, err := client.Do(req)
+	if err != nil {
+		fmt.Println(err)
+	}
+	defer func() {
+		if err := res.Body.Close(); err != nil {
+			fmt.Println("Error when closing:", err)
+		}
+	}()
+}

eth/main_test.go

@@ -19,13 +19,15 @@ var tokenHezStr = os.Getenv("TOKEN_ADDRESS")
 var hermezStr = os.Getenv("HERMEZ_ADDRESS")
 var governanceAddressStr = os.Getenv("GOV_ADDRESS")
 var governancePrivateKey = os.Getenv("GOV_PK")
-var ehtClientDialURL = os.Getenv("ETHCLIENT_DIAL_URL")*/
-var ehtClientDialURL = "http://localhost:8545"
+var ethClientDialURL = os.Getenv("ETHCLIENT_DIAL_URL")*/
+var ethClientDialURL = "http://localhost:8545"
 var password = "pass"
 
 // Smart Contract Addresses
 var (
-	auctionAddressStr           = "0x3619DbE27d7c1e7E91aA738697Ae7Bc5FC3eACA5"
+	// auctionAddressStr           = "0x3619DbE27d7c1e7E91aA738697Ae7Bc5FC3eACA5"
+	// wdelayerAddressStr          = "0x1A1FEe7EeD918BD762173e4dc5EfDB8a78C924A8"
+	auctionAddressStr           = "0x8B5B7a6055E54a36fF574bbE40cf2eA68d5554b3"
 	auctionAddressConst         = ethCommon.HexToAddress(auctionAddressStr)
 	donationAddressStr          = "0x6c365935CA8710200C7595F0a72EB6023A7706Cd"
 	donationAddressConst        = ethCommon.HexToAddress(donationAddressStr)
@@ -35,7 +37,7 @@ var (
 	tokenHezAddressConst        = ethCommon.HexToAddress(tokenHezAddressStr)
 	hermezRollupAddressStr      = "0xc4905364b78a742ccce7B890A89514061E47068D"
 	hermezRollupAddressConst    = ethCommon.HexToAddress(hermezRollupAddressStr)
-	wdelayerAddressStr          = "0x1A1FEe7EeD918BD762173e4dc5EfDB8a78C924A8"
+	wdelayerAddressStr          = "0x20Ce94F404343aD2752A2D01b43fa407db9E0D00"
 	wdelayerAddressConst        = ethCommon.HexToAddress(wdelayerAddressStr)
 )
 
@@ -60,6 +62,10 @@ var (
 	auxAddressSK    = "28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29089"
 	auxAddressStr   = "0x3d91185a02774C70287F6c74Dd26d13DFB58ff16"
 	auxAddressConst = ethCommon.HexToAddress(auxAddressStr)
+
+	hermezRollupTestSK           = "28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29088"
+	hermezRollupTestAddressStr   = "0xEa960515F8b4C237730F028cBAcF0a28E7F45dE0"
+	hermezRollupAddressTestConst = ethCommon.HexToAddress(hermezRollupTestAddressStr)
 )
 
 var (
@@ -68,12 +74,14 @@ var (
 	accountWhite         *accounts.Account
 	accountGovDAO        *accounts.Account
 	accountAux           *accounts.Account
+	accountHermez        *accounts.Account
 	ks                   *keystore.KeyStore
 	ethClient            *ethclient.Client
 	ethereumClientWhite  *EthereumClient
 	ethereumClientKep    *EthereumClient
 	ethereumClientGovDAO *EthereumClient
 	ethereumClientAux    *EthereumClient
+	ethereumClientHermez *EthereumClient
 )
 
 func addKey(ks *keystore.KeyStore, skHex string) *accounts.Account {
@@ -108,8 +116,9 @@ func TestMain(m *testing.M) {
 		accountWhite = addKey(ks, whiteHackGroupAddressSK)
 		accountGovDAO = addKey(ks, hermezGovernanceDAOAddressSK)
 		accountAux = addKey(ks, auxAddressSK)
+		accountHermez = addKey(ks, hermezRollupTestSK)
 
-		ethClient, err = ethclient.Dial(ehtClientDialURL)
+		ethClient, err = ethclient.Dial(ethClientDialURL)
 		if err != nil {
 			panic(err)
 		}
@@ -117,14 +126,21 @@ func TestMain(m *testing.M) {
 		// Controllable Governance Address
 
 		ethereumClientGov := NewEthereumClient(ethClient, accountGov, ks, nil)
-		auctionClient = NewAuctionClient(ethereumClientGov, auctionAddressConst, tokenHezAddressConst)
+		auctionClient, err = NewAuctionClient(ethereumClientGov, auctionAddressConst, tokenHezAddressConst)
+		if err != nil {
+			panic(err)
+		}
 		rollupClient = NewRollupClient(ethereumClientGov, hermezRollupAddressConst)
-		wdelayerClient = NewWDelayerClient(ethereumClientGov, wdelayerAddressConst)
+		wdelayerClient, err = NewWDelayerClient(ethereumClientGov, wdelayerAddressConst)
+		if err != nil {
+			panic(err)
+		}
 
 		ethereumClientKep = NewEthereumClient(ethClient, accountKep, ks, nil)
 		ethereumClientWhite = NewEthereumClient(ethClient, accountWhite, ks, nil)
 		ethereumClientGovDAO = NewEthereumClient(ethClient, accountGovDAO, ks, nil)
 		ethereumClientAux = NewEthereumClient(ethClient, accountAux, ks, nil)
+		ethereumClientHermez = NewEthereumClient(ethClient, accountHermez, ks, nil)
 
 		exitVal = m.Run()
 	}

eth/wdelayer.go

@@ -1,12 +1,17 @@
 package eth
 
 import (
+	"context"
 	"fmt"
 	"math/big"
+	"strings"
 
+	"github.com/ethereum/go-ethereum"
+	"github.com/ethereum/go-ethereum/accounts/abi"
 	"github.com/ethereum/go-ethereum/accounts/abi/bind"
 	ethCommon "github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethclient"
 	WithdrawalDelayer "github.com/hermeznetwork/hermez-node/eth/contracts/withdrawdelayer"
 )
@@ -128,18 +133,24 @@ type WDelayerInterface interface {
 
 // WDelayerClient is the implementation of the interface to the WithdrawDelayer Smart Contract in ethereum.
 type WDelayerClient struct {
-	client   *EthereumClient
-	address  ethCommon.Address
-	gasLimit uint64
+	client      *EthereumClient
+	address     ethCommon.Address
+	gasLimit    uint64
+	contractAbi abi.ABI
 }
 
 // NewWDelayerClient creates a new WDelayerClient
-func NewWDelayerClient(client *EthereumClient, address ethCommon.Address) *WDelayerClient {
-	return &WDelayerClient{
-		client:   client,
-		address:  address,
-		gasLimit: 1000000, //nolint:gomnd
+func NewWDelayerClient(client *EthereumClient, address ethCommon.Address) (*WDelayerClient, error) {
+	contractAbi, err := abi.JSON(strings.NewReader(string(WithdrawalDelayer.WithdrawalDelayerABI)))
+	if err != nil {
+		return nil, err
 	}
+	return &WDelayerClient{
+		client:      client,
+		address:     address,
+		gasLimit:    1000000, //nolint:gomnd
+		contractAbi: contractAbi,
+	}, nil
 }
 
 // WDelayerGetHermezGovernanceDAOAddress is the interface to call the smart contract function
@@ -407,3 +418,110 @@ func (c *WDelayerClient) WDelayerEscapeHatchWithdrawal(to, token ethCommon.Addre
 	}
 	return tx, nil
 }
+
+var (
+	logDeposit                       = crypto.Keccak256Hash([]byte("Deposit(address,address,uint192,uint64)"))
+	logWithdraw                      = crypto.Keccak256Hash([]byte("Withdraw(address,address,uint192)"))
+	logEmergencyModeEnabled          = crypto.Keccak256Hash([]byte("EmergencyModeEnabled()"))
+	logNewWithdrawalDelay            = crypto.Keccak256Hash([]byte("NewWithdrawalDelay(uint64)"))
+	logEscapeHatchWithdrawal         = crypto.Keccak256Hash([]byte("EscapeHatchWithdrawal(address,address,address)"))
+	logNewHermezKeeperAddress        = crypto.Keccak256Hash([]byte("NewHermezKeeperAddress(address)"))
+	logNewWhiteHackGroupAddress      = crypto.Keccak256Hash([]byte("NewWhiteHackGroupAddress(address)"))
+	logNewHermezGovernanceDAOAddress = crypto.Keccak256Hash([]byte("NewHermezGovernanceDAOAddress(address)"))
+)
+
+// WDelayerEventsByBlock returns the events in a block that happened in the
+// WDelayer Smart Contract and the blockHash where the eents happened.  If
+// there are no events in that block, blockHash is nil.
+func (c *WDelayerClient) WDelayerEventsByBlock(blockNum int64) (*WDelayerEvents, *ethCommon.Hash, error) {
+	var wdelayerEvents WDelayerEvents
+	var blockHash ethCommon.Hash
+
+	query := ethereum.FilterQuery{
+		FromBlock: big.NewInt(blockNum),
+		ToBlock:   big.NewInt(blockNum),
+		Addresses: []ethCommon.Address{
+			c.address,
+		},
+		BlockHash: nil,
+		Topics:    [][]ethCommon.Hash{},
+	}
+
+	logs, err := c.client.client.FilterLogs(context.Background(), query)
+	if err != nil {
+		return nil, nil, err
+	}
+	if len(logs) > 0 {
+		blockHash = logs[0].BlockHash
+	}
+	for _, vLog := range logs {
+		if vLog.BlockHash != blockHash {
+			return nil, nil, ErrBlockHashMismatchEvent
+		}
+		switch vLog.Topics[0] {
+		case logDeposit:
+			var deposit WDelayerEventDeposit
+			err := c.contractAbi.Unpack(&deposit, "Deposit", vLog.Data)
+			if err != nil {
+				return nil, nil, err
+			}
+			deposit.Owner = ethCommon.BytesToAddress(vLog.Topics[1].Bytes())
+			deposit.Token = ethCommon.BytesToAddress(vLog.Topics[2].Bytes())
+			wdelayerEvents.Deposit = append(wdelayerEvents.Deposit, deposit)
+
+		case logWithdraw:
+			var withdraw WDelayerEventWithdraw
+			err := c.contractAbi.Unpack(&withdraw, "Withdraw", vLog.Data)
+			if err != nil {
+				return nil, nil, err
+			}
+			withdraw.Token = ethCommon.BytesToAddress(vLog.Topics[1].Bytes())
+			withdraw.Owner = ethCommon.BytesToAddress(vLog.Topics[2].Bytes())
+			wdelayerEvents.Withdraw = append(wdelayerEvents.Withdraw, withdraw)
+
+		case logEmergencyModeEnabled:
+			var emergencyModeEnabled WDelayerEventEmergencyModeEnabled
+			wdelayerEvents.EmergencyModeEnabled = append(wdelayerEvents.EmergencyModeEnabled, emergencyModeEnabled)
+
+		case logNewWithdrawalDelay:
+			var withdrawalDelay WDelayerEventNewWithdrawalDelay
+			err := c.contractAbi.Unpack(&withdrawalDelay, "NewWithdrawalDelay", vLog.Data)
+			if err != nil {
+				return nil, nil, err
+			}
+			wdelayerEvents.NewWithdrawalDelay = append(wdelayerEvents.NewWithdrawalDelay, withdrawalDelay)
+
+		case logEscapeHatchWithdrawal:
+			var escapeHatchWithdrawal WDelayerEventEscapeHatchWithdrawal
+			escapeHatchWithdrawal.Who = ethCommon.BytesToAddress(vLog.Topics[1].Bytes())
+			escapeHatchWithdrawal.To = ethCommon.BytesToAddress(vLog.Topics[2].Bytes())
+			escapeHatchWithdrawal.Token = ethCommon.BytesToAddress(vLog.Topics[3].Bytes())
+			wdelayerEvents.EscapeHatchWithdrawal = append(wdelayerEvents.EscapeHatchWithdrawal, escapeHatchWithdrawal)
+
+		case logNewHermezKeeperAddress:
+			var keeperAddress WDelayerEventNewHermezKeeperAddress
+			err := c.contractAbi.Unpack(&keeperAddress, "NewHermezKeeperAddress", vLog.Data)
+			if err != nil {
+				return nil, nil, err
+			}
+			wdelayerEvents.NewHermezKeeperAddress = append(wdelayerEvents.NewHermezKeeperAddress, keeperAddress)
+
+		case logNewWhiteHackGroupAddress:
+			var whiteHackGroupAddress WDelayerEventNewWhiteHackGroupAddress
+			err := c.contractAbi.Unpack(&whiteHackGroupAddress, "NewWhiteHackGroupAddress", vLog.Data)
+			if err != nil {
+				return nil, nil, err
+			}
+			wdelayerEvents.NewWhiteHackGroupAddress = append(wdelayerEvents.NewWhiteHackGroupAddress, whiteHackGroupAddress)
+
+		case logNewHermezGovernanceDAOAddress:
+			var governanceDAOAddress WDelayerEventNewHermezGovernanceDAOAddress
+			err := c.contractAbi.Unpack(&governanceDAOAddress, "NewHermezGovernanceDAOAddress", vLog.Data)
+			if err != nil {
+				return nil, nil, err
+			}
+			wdelayerEvents.NewHermezGovernanceDAOAddress = append(wdelayerEvents.NewHermezGovernanceDAOAddress, governanceDAOAddress)
+		}
+	}
+	return &wdelayerEvents, &blockHash, nil
+}

eth/wdelayer_test.go

@@ -3,6 +3,7 @@ package eth
 import (
 	"math/big"
 	"testing"
+	"time"
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -14,6 +15,7 @@ var wdelayerClient *WDelayerClient
 
 var initWithdrawalDelay = big.NewInt(60)
 var newWithdrawalDelay = big.NewInt(79)
+var maxEmergencyModeTime = time.Hour * 24 * 7 * 26
 
 func TestWDelayerGetHermezGovernanceDAOAddress(t *testing.T) {
 	governanceAddress, err := wdelayerClient.WDelayerGetHermezGovernanceDAOAddress()
@@ -22,13 +24,18 @@ func TestWDelayerGetHermezGovernanceDAOAddress(t *testing.T) {
 }
 
 func TestWDelayerSetHermezGovernanceDAOAddress(t *testing.T) {
-	wdelayerClientGov := NewWDelayerClient(ethereumClientGovDAO, wdelayerAddressConst)
-	_, err := wdelayerClientGov.WDelayerSetHermezGovernanceDAOAddress(auxAddressConst)
+	wdelayerClientGov, err := NewWDelayerClient(ethereumClientGovDAO, wdelayerAddressConst)
+	require.Nil(t, err)
+	_, err = wdelayerClientGov.WDelayerSetHermezGovernanceDAOAddress(auxAddressConst)
 	require.Nil(t, err)
 	auxAddress, err := wdelayerClient.WDelayerGetHermezGovernanceDAOAddress()
 	require.Nil(t, err)
 	assert.Equal(t, &auxAddressConst, auxAddress)
-	wdelayerClientAux := NewWDelayerClient(ethereumClientAux, wdelayerAddressConst)
+	currentBlockNum, _ := wdelayerClient.client.EthCurrentBlock()
+	wdelayerEvents, _, _ := wdelayerClient.WDelayerEventsByBlock(currentBlockNum)
+	assert.Equal(t, auxAddressConst, wdelayerEvents.NewHermezGovernanceDAOAddress[0].NewHermezGovernanceDAOAddress)
+	wdelayerClientAux, err := NewWDelayerClient(ethereumClientAux, wdelayerAddressConst)
+	require.Nil(t, err)
 	_, err = wdelayerClientAux.WDelayerSetHermezGovernanceDAOAddress(hermezGovernanceDAOAddressConst)
 	require.Nil(t, err)
 }
@@ -40,13 +47,18 @@ func TestWDelayerGetHermezKeeperAddress(t *testing.T) {
 }
 
 func TestWDelayerSetHermezKeeperAddress(t *testing.T) {
-	wdelayerClientKep := NewWDelayerClient(ethereumClientKep, wdelayerAddressConst)
-	_, err := wdelayerClientKep.WDelayerSetHermezKeeperAddress(auxAddressConst)
+	wdelayerClientKep, err := NewWDelayerClient(ethereumClientKep, wdelayerAddressConst)
+	require.Nil(t, err)
+	_, err = wdelayerClientKep.WDelayerSetHermezKeeperAddress(auxAddressConst)
 	require.Nil(t, err)
 	auxAddress, err := wdelayerClient.WDelayerGetHermezKeeperAddress()
 	require.Nil(t, err)
 	assert.Equal(t, &auxAddressConst, auxAddress)
-	wdelayerClientAux := NewWDelayerClient(ethereumClientAux, wdelayerAddressConst)
+	currentBlockNum, _ := wdelayerClient.client.EthCurrentBlock()
+	wdelayerEvents, _, _ := wdelayerClient.WDelayerEventsByBlock(currentBlockNum)
+	assert.Equal(t, auxAddressConst, wdelayerEvents.NewHermezKeeperAddress[0].NewHermezKeeperAddress)
+	wdelayerClientAux, err := NewWDelayerClient(ethereumClientAux, wdelayerAddressConst)
+	require.Nil(t, err)
 	_, err = wdelayerClientAux.WDelayerSetHermezKeeperAddress(hermezKeeperAddressConst)
 	require.Nil(t, err)
 }
@@ -58,13 +70,18 @@ func TestWDelayerGetWhiteHackGroupAddress(t *testing.T) {
 }
 
 func TestWDelayerSetWhiteHackGroupAddress(t *testing.T) {
-	wdelayerClientWhite := NewWDelayerClient(ethereumClientWhite, wdelayerAddressConst)
-	_, err := wdelayerClientWhite.WDelayerSetWhiteHackGroupAddress(auxAddressConst)
+	wdelayerClientWhite, err := NewWDelayerClient(ethereumClientWhite, wdelayerAddressConst)
+	require.Nil(t, err)
+	_, err = wdelayerClientWhite.WDelayerSetWhiteHackGroupAddress(auxAddressConst)
 	require.Nil(t, err)
 	auxAddress, err := wdelayerClient.WDelayerGetWhiteHackGroupAddress()
 	require.Nil(t, err)
 	assert.Equal(t, &auxAddressConst, auxAddress)
-	wdelayerClientAux := NewWDelayerClient(ethereumClientAux, wdelayerAddressConst)
+	currentBlockNum, _ := wdelayerClient.client.EthCurrentBlock()
+	wdelayerEvents, _, _ := wdelayerClient.WDelayerEventsByBlock(currentBlockNum)
+	assert.Equal(t, auxAddressConst, wdelayerEvents.NewWhiteHackGroupAddress[0].NewWhiteHackGroupAddress)
+	wdelayerClientAux, err := NewWDelayerClient(ethereumClientAux, wdelayerAddressConst)
+	require.Nil(t, err)
 	_, err = wdelayerClientAux.WDelayerSetWhiteHackGroupAddress(whiteHackGroupAddressConst)
 	require.Nil(t, err)
 }
@@ -81,22 +98,68 @@ func TestWDelayerGetWithdrawalDelay(t *testing.T) {
 	assert.Equal(t, initWithdrawalDelay, withdrawalDelay)
 }
 
-func TestWDelayerEnableEmergencyMode(t *testing.T) {
-	wdelayerClientKep := NewWDelayerClient(ethereumClientKep, wdelayerAddressConst)
-	_, err := wdelayerClientKep.WDelayerEnableEmergencyMode()
+func TestWDelayerChangeWithdrawalDelay(t *testing.T) {
+	wdelayerClientKep, err := NewWDelayerClient(ethereumClientKep, wdelayerAddressConst)
 	require.Nil(t, err)
-	emergencyMode, err := wdelayerClient.WDelayerIsEmergencyMode()
+	_, err = wdelayerClientKep.WDelayerChangeWithdrawalDelay(newWithdrawalDelay.Uint64())
 	require.Nil(t, err)
-	assert.Equal(t, true, emergencyMode)
+	withdrawalDelay, err := wdelayerClient.WDelayerGetWithdrawalDelay()
+	require.Nil(t, err)
+	assert.Equal(t, newWithdrawalDelay, withdrawalDelay)
+	currentBlockNum, _ := wdelayerClient.client.EthCurrentBlock()
+	wdelayerEvents, _, _ := wdelayerClient.WDelayerEventsByBlock(currentBlockNum)
+	assert.Equal(t, newWithdrawalDelay.Uint64(), wdelayerEvents.NewWithdrawalDelay[0].WithdrawalDelay)
 }
 
-func TestWDelayerChangeWithdrawalDelay(t *testing.T) {
-	wdelayerClientKep := NewWDelayerClient(ethereumClientKep, wdelayerAddressConst)
-	_, err := wdelayerClientKep.WDelayerChangeWithdrawalDelay(newWithdrawalDelay.Uint64())
+func TestWDelayerDeposit(t *testing.T) {
+	amount := new(big.Int)
+	amount.SetString("1100000000000000000", 10)
+	wdelayerClientHermez, err := NewWDelayerClient(ethereumClientHermez, wdelayerAddressConst)
 	require.Nil(t, err)
-	withdrawalDelay, err := wdelayerClient.WDelayerGetWithdrawalDelay()
+	_, err = wdelayerClientHermez.WDelayerDeposit(auxAddressConst, tokenHezAddressConst, amount)
 	require.Nil(t, err)
-	assert.Equal(t, newWithdrawalDelay, withdrawalDelay)
+	currentBlockNum, _ := wdelayerClient.client.EthCurrentBlock()
+	wdelayerEvents, _, _ := wdelayerClient.WDelayerEventsByBlock(currentBlockNum)
+	assert.Equal(t, amount, wdelayerEvents.Deposit[0].Amount)
+	assert.Equal(t, auxAddressConst, wdelayerEvents.Deposit[0].Owner)
+	assert.Equal(t, tokenHezAddressConst, wdelayerEvents.Deposit[0].Token)
+}
+
+func TestWDelayerDepositInfo(t *testing.T) {
+	amount := new(big.Int)
+	amount.SetString("1100000000000000000", 10)
+	state, err := wdelayerClient.WDelayerDepositInfo(auxAddressConst, tokenHezAddressConst)
+	require.Nil(t, err)
+	assert.Equal(t, state.Amount, amount)
+}
+
+func TestWDelayerWithdrawal(t *testing.T) {
+	amount := new(big.Int)
+	amount.SetString("1100000000000000000", 10)
+	_, err := wdelayerClient.WDelayerWithdrawal(auxAddressConst, tokenHezAddressConst)
+	require.Contains(t, err.Error(), "Withdrawal not allowed yet")
+	addBlocks(newWithdrawalDelay.Int64(), ethClientDialURL)
+	_, err = wdelayerClient.WDelayerWithdrawal(auxAddressConst, tokenHezAddressConst)
+	require.Nil(t, err)
+	currentBlockNum, _ := wdelayerClient.client.EthCurrentBlock()
+	wdelayerEvents, _, _ := wdelayerClient.WDelayerEventsByBlock(currentBlockNum)
+	assert.Equal(t, amount, wdelayerEvents.Withdraw[0].Amount)
+	assert.Equal(t, auxAddressConst, wdelayerEvents.Withdraw[0].Owner)
+	assert.Equal(t, tokenHezAddressConst, wdelayerEvents.Withdraw[0].Token)
+}
+
+func TestWDelayerEnableEmergencyMode(t *testing.T) {
+	wdelayerClientKep, err := NewWDelayerClient(ethereumClientKep, wdelayerAddressConst)
+	require.Nil(t, err)
+	_, err = wdelayerClientKep.WDelayerEnableEmergencyMode()
+	require.Nil(t, err)
+	emergencyMode, err := wdelayerClient.WDelayerIsEmergencyMode()
+	require.Nil(t, err)
+	assert.Equal(t, true, emergencyMode)
+	currentBlockNum, _ := wdelayerClient.client.EthCurrentBlock()
+	wdelayerEvents, _, _ := wdelayerClient.WDelayerEventsByBlock(currentBlockNum)
+	auxEvent := new(WDelayerEventEmergencyModeEnabled)
+	assert.Equal(t, auxEvent, &wdelayerEvents.EmergencyModeEnabled[0])
 }
 
 func TestWDelayerGetEmergencyModeStartingTime(t *testing.T) {
@@ -109,26 +172,18 @@ func TestWDelayerGetEmergencyModeStartingTime(t *testing.T) {
 	assert.True(t, emergencyModeStartingTime.Cmp(big.NewInt(0)) == 1)
 }
 
-/* func TestWDelayerDeposit(t *testing.T) {
-	if wdelayerClient != nil {
-
-	}
-}
-
-func TestWDelayerDepositInfo(t *testing.T) {
-	if wdelayerClient != nil {
-
-	}
-}
-
-func TestWDelayerWithdrawal(t *testing.T) {
-	if wdelayerClient != nil {
-
-	}
-}
-
 func TestWDelayerEscapeHatchWithdrawal(t *testing.T) {
-	if wdelayerClient != nil {
-
-	}
-} */
+	wdelayerClientWhite, err := NewWDelayerClient(ethereumClientWhite, wdelayerAddressConst)
+	require.Nil(t, err)
+	_, err = wdelayerClientWhite.WDelayerEscapeHatchWithdrawal(governanceAddressConst, tokenHezAddressConst)
+	require.Contains(t, err.Error(), "NO MAX_EMERGENCY_MODE_TIME")
+	seconds := maxEmergencyModeTime.Seconds()
+	addTime(seconds, ethClientDialURL)
+	_, err = wdelayerClientWhite.WDelayerEscapeHatchWithdrawal(governanceAddressConst, tokenHezAddressConst)
+	require.Nil(t, err)
+	currentBlockNum, _ := wdelayerClient.client.EthCurrentBlock()
+	wdelayerEvents, _, _ := wdelayerClient.WDelayerEventsByBlock(currentBlockNum)
+	assert.Equal(t, tokenHezAddressConst, wdelayerEvents.EscapeHatchWithdrawal[0].Token)
+	assert.Equal(t, governanceAddressConst, wdelayerEvents.EscapeHatchWithdrawal[0].To)
+	assert.Equal(t, whiteHackGroupAddressConst, wdelayerEvents.EscapeHatchWithdrawal[0].Who)
+}