Merge pull request #129 from hermeznetwork/feature/integration

Feature/integration

config/config.go

@@ -25,10 +25,28 @@ func (d *Duration) UnmarshalText(data []byte) error {
 	return nil
 }
 
+// ServerProof is the server proof configuration data.
+type ServerProof struct {
+	URL string `validate:"required"`
+}
+
 // Coordinator is the coordinator specific configuration.
 type Coordinator struct {
 	ForgerAddress     ethCommon.Address `validate:"required"`
 	ForgeLoopInterval Duration          `validate:"required"`
+	L2DB              struct {
+		Name         string   `validate:"required"`
+		SafetyPeriod uint16   `validate:"required"`
+		MaxTxs       uint32   `validate:"required"`
+		TTL          Duration `validate:"required"`
+	} `validate:"required"`
+	TxSelector struct {
+		Path string `validate:"required"`
+	} `validate:"required"`
+	BatchBuilder struct {
+		Path string `validate:"required"`
+	} `validate:"required"`
+	ServerProofs []ServerProof `validate:"required"`
 }
 
 // Node is the hermez node configuration.
@@ -42,24 +60,12 @@ type Node struct {
 		User     string `validate:"required"`
 		Password string `validate:"required"`
 	} `validate:"required"`
-	L2DB struct {
-		Name         string   `validate:"required"`
-		SafetyPeriod uint16   `validate:"required"`
-		MaxTxs       uint32   `validate:"required"`
-		TTL          Duration `validate:"required"`
-	} `validate:"required"`
 	HistoryDB struct {
 		Name string `validate:"required"`
 	} `validate:"required"`
 	Web3 struct {
 		URL string `validate:"required"`
 	} `validate:"required"`
-	TxSelector struct {
-		Path string `validate:"required"`
-	} `validate:"required"`
-	BatchBuilder struct {
-		Path string `validate:"required"`
-	} `validate:"required"`
 	Synchronizer struct {
 		SyncLoopInterval Duration `validate:"required"`
 	} `validate:"required"`

coordinator/batch.go

@@ -11,7 +11,7 @@ type Proof struct {
 // BatchInfo contans the Batch information
 type BatchInfo struct {
 	batchNum       common.BatchNum
-	serverProof    *ServerProofInfo
+	serverProof    ServerProofInterface
 	zkInputs       *common.ZKInputs
 	proof          *Proof
 	L1UserTxsExtra []*common.L1Tx
@@ -21,8 +21,8 @@ type BatchInfo struct {
 }
 
 // NewBatchInfo creates a new BatchInfo with the given batchNum &
-// ServerProofInfo
-func NewBatchInfo(batchNum common.BatchNum, serverProof *ServerProofInfo) BatchInfo {
+// ServerProof
+func NewBatchInfo(batchNum common.BatchNum, serverProof ServerProofInterface) BatchInfo {
 	return BatchInfo{
 		batchNum:    batchNum,
 		serverProof: serverProof,
@@ -43,8 +43,8 @@ func (bi *BatchInfo) SetZKInputs(zkInputs *common.ZKInputs) {
 	bi.zkInputs = zkInputs
 }
 
-// SetServerProof sets the ServerProofInfo to the BatchInfo data structure
-func (bi *BatchInfo) SetServerProof(serverProof *ServerProofInfo) {
+// SetServerProof sets the ServerProof to the BatchInfo data structure
+func (bi *BatchInfo) SetServerProof(serverProof ServerProofInterface) {
 	bi.serverProof = serverProof
 }
 
@@ -52,30 +52,3 @@ func (bi *BatchInfo) SetServerProof(serverProof *ServerProofInfo) {
 func (bi *BatchInfo) SetProof(proof *Proof) {
 	bi.proof = proof
 }
-
-// BatchQueue implements a FIFO queue of BatchInfo
-type BatchQueue struct {
-	queue []*BatchInfo
-}
-
-// NewBatchQueue returns a new *BatchQueue
-func NewBatchQueue() *BatchQueue {
-	return &BatchQueue{
-		queue: []*BatchInfo{},
-	}
-}
-
-// Push adds the given BatchInfo to the BatchQueue
-func (bq *BatchQueue) Push(b *BatchInfo) {
-	bq.queue = append(bq.queue, b)
-}
-
-// Pop pops the first BatchInfo from the BatchQueue
-func (bq *BatchQueue) Pop() *BatchInfo {
-	if len(bq.queue) == 0 {
-		return nil
-	}
-	b := bq.queue[0]
-	bq.queue = bq.queue[1:]
-	return b
-}

coordinator/batch_test.go

@@ -1,27 +0,0 @@
-package coordinator
-
-import (
-	"testing"
-
-	"github.com/hermeznetwork/hermez-node/common"
-	"github.com/stretchr/testify/assert"
-)
-
-func TestBatchQueue(t *testing.T) {
-	bq := BatchQueue{}
-
-	bq.Push(&BatchInfo{
-		batchNum: 0,
-	})
-	bq.Push(&BatchInfo{
-		batchNum: 2,
-	})
-	bq.Push(&BatchInfo{
-		batchNum: 1,
-	})
-
-	assert.Equal(t, common.BatchNum(0), bq.Pop().batchNum)
-	assert.Equal(t, common.BatchNum(2), bq.Pop().batchNum)
-	assert.Equal(t, common.BatchNum(1), bq.Pop().batchNum)
-	assert.Nil(t, bq.Pop())
-}

coordinator/coordinator.go

@@ -2,6 +2,7 @@ package coordinator
 
 import (
 	"fmt"
+	"sync"
 
 	ethCommon "github.com/ethereum/go-ethereum/common"
 	"github.com/hermeznetwork/hermez-node/batchbuilder"
@@ -14,6 +15,8 @@ import (
 	"github.com/iden3/go-merkletree/db/memory"
 )
 
+var errTODO = fmt.Errorf("TODO")
+
 // ErrStop is returned when the function is stopped asynchronously via the stop
 // channel.  It doesn't indicate an error.
 var ErrStop = fmt.Errorf("Stopped")
@@ -26,12 +29,13 @@ type Config struct {
 // Coordinator implements the Coordinator type
 type Coordinator struct {
 	forging    bool
+	rw         *sync.RWMutex
 	isForgeSeq bool // WIP just for testing while implementing
 
 	config Config
 
 	batchNum        common.BatchNum
-	serverProofPool ServerProofPool
+	serverProofPool *ServerProofPool
 
 	// synchronizer *synchronizer.Synchronizer
 	hdb          *historydb.HistoryDB
@@ -47,14 +51,21 @@ func NewCoordinator(conf Config,
 	hdb *historydb.HistoryDB,
 	txsel *txselector.TxSelector,
 	bb *batchbuilder.BatchBuilder,
-	ethClient *eth.Client) *Coordinator { // once synchronizer is ready, synchronizer.Synchronizer will be passed as parameter here
+	serverProofs []ServerProofInterface,
+	ethClient eth.ClientInterface) *Coordinator { // once synchronizer is ready, synchronizer.Synchronizer will be passed as parameter here
+	serverProofPool := NewServerProofPool(len(serverProofs))
+	for _, serverProof := range serverProofs {
+		serverProofPool.Add(serverProof)
+	}
 	c := Coordinator{
-		config:       conf,
-		hdb:          hdb,
-		txsel:        txsel,
-		batchBuilder: bb,
-		ethClient:    ethClient,
-		ethTxStore:   memory.NewMemoryStorage(),
+		config:          conf,
+		serverProofPool: serverProofPool,
+		hdb:             hdb,
+		txsel:           txsel,
+		batchBuilder:    bb,
+		ethClient:       ethClient,
+		ethTxStore:      memory.NewMemoryStorage(),
+		rw:              &sync.RWMutex{},
 	}
 	return &c
 }
@@ -62,27 +73,28 @@ func NewCoordinator(conf Config,
 // ForgeLoopFn is the function ran in a loop that checks if it's time to forge
 // and forges a batch if so and sends it to outBatchCh.  Returns true if it's
 // the coordinator turn to forge.
-func (c *Coordinator) ForgeLoopFn(outBatchCh chan *BatchInfo, stopCh chan bool) (bool, error) {
+func (c *Coordinator) ForgeLoopFn(outBatchCh chan *BatchInfo, stopCh chan bool) (forgetime bool, err error) {
 	if !c.isForgeSequence() {
 		if c.forging {
-			log.Info("stop forging")
+			log.Info("ForgeLoopFn: forging state end")
 			c.forging = false
 		}
-		log.Debug("not in forge time")
+		log.Debug("ForgeLoopFn: not in forge time")
 		return false, nil
 	}
-	log.Debug("forge time")
+	log.Debug("ForgeLoopFn: forge time")
 	if !c.forging {
-		log.Info("start forging")
+		// Start pipeline from a batchNum state taken from synchronizer
+		log.Info("ForgeLoopFn: forging state begin")
 		// c.batchNum = c.hdb.GetLastBatchNum() // uncomment when HistoryDB is ready
 		err := c.txsel.Reset(c.batchNum)
 		if err != nil {
-			log.Errorw("TxSelector.Reset", "error", err)
+			log.Errorw("ForgeLoopFn: TxSelector.Reset", "error", err)
 			return true, err
 		}
 		err = c.batchBuilder.Reset(c.batchNum, true)
 		if err != nil {
-			log.Errorw("BatchBuilder.Reset", "error", err)
+			log.Errorw("ForgeLoopFn: BatchBuilder.Reset", "error", err)
 			return true, err
 		}
 		// c.batchQueue = NewBatchQueue()
@@ -94,21 +106,27 @@ func (c *Coordinator) ForgeLoopFn(outBatchCh chan *BatchInfo, stopCh chan bool)
 	// if c.synchronizer.Reorg():
 	_ = c.handleReorg()
 
-	// 0. If there's an available server proof: Start pipeline for batchNum = batchNum + 1.
-	// non-blocking call, returns nil if a server proof is
-	// not available, or non-nil otherwise.
-	serverProofInfo, err := c.serverProofPool.GetNextAvailable(stopCh)
+	// 0. Wait for an available server proof
+	// blocking call
+	serverProof, err := c.serverProofPool.Get(stopCh)
 	if err != nil {
 		return true, err
 	}
+	defer func() {
+		if !forgetime || err != nil {
+			c.serverProofPool.Add(serverProof)
+		}
+	}()
 
-	log.Debugw("start forge")
-	batchInfo, err := c.forge(serverProofInfo)
+	log.Debugw("ForgeLoopFn: using serverProof", "server", serverProof)
+	log.Debugw("ForgeLoopFn: forge start")
+	// forge for batchNum = batchNum + 1.
+	batchInfo, err := c.forge(serverProof)
 	if err != nil {
 		log.Errorw("forge", "error", err)
 		return true, err
 	}
-	log.Debugw("end forge", "batchNum", batchInfo.batchNum)
+	log.Debugw("ForgeLoopFn: forge end", "batchNum", batchInfo.batchNum)
 	outBatchCh <- batchInfo
 	return true, nil
 }
@@ -119,14 +137,14 @@ func (c *Coordinator) ForgeLoopFn(outBatchCh chan *BatchInfo, stopCh chan bool)
 func (c *Coordinator) GetProofCallForgeLoopFn(inBatchCh, outBatchCh chan *BatchInfo, stopCh chan bool) error {
 	select {
 	case <-stopCh:
-		log.Info("forgeLoopFn stopped")
+		log.Info("GetProofCallForgeLoopFn: forgeLoopFn stopped")
 		return ErrStop
 	case batchInfo := <-inBatchCh:
-		log.Debugw("start getProofCallForge", "batchNum", batchInfo.batchNum)
-		if err := c.getProofCallForge(batchInfo); err != nil {
+		log.Debugw("GetProofCallForgeLoopFn: getProofCallForge start", "batchNum", batchInfo.batchNum)
+		if err := c.getProofCallForge(batchInfo, stopCh); err != nil {
 			return err
 		}
-		log.Debugw("end getProofCallForge", "batchNum", batchInfo.batchNum)
+		log.Debugw("GetProofCallForgeLoopFn: getProofCallForge end", "batchNum", batchInfo.batchNum)
 		outBatchCh <- batchInfo
 	}
 	return nil
@@ -138,19 +156,19 @@ func (c *Coordinator) GetProofCallForgeLoopFn(inBatchCh, outBatchCh chan *BatchI
 func (c *Coordinator) ForgeCallConfirmLoopFn(inBatchCh chan *BatchInfo, stopCh chan bool) error {
 	select {
 	case <-stopCh:
-		log.Info("forgeConfirmLoopFn stopped")
+		log.Info("ForgeCallConfirmLoopFn: forgeConfirmLoopFn stopped")
 		return ErrStop
 	case batchInfo := <-inBatchCh:
-		log.Debugw("start forgeCallConfirm", "batchNum", batchInfo.batchNum)
+		log.Debugw("ForgeCallConfirmLoopFn: forgeCallConfirm start", "batchNum", batchInfo.batchNum)
 		if err := c.forgeCallConfirm(batchInfo); err != nil {
 			return err
 		}
-		log.Debugw("end forgeCallConfirm", "batchNum", batchInfo.batchNum)
+		log.Debugw("ForgeCallConfirmLoopFn: forgeCallConfirm  end", "batchNum", batchInfo.batchNum)
 	}
 	return nil
 }
 
-func (c *Coordinator) forge(serverProofInfo *ServerProofInfo) (*BatchInfo, error) {
+func (c *Coordinator) forge(serverProof ServerProofInterface) (*BatchInfo, error) {
 	// remove transactions from the pool that have been there for too long
 	err := c.purgeRemoveByTimeout()
 	if err != nil {
@@ -158,7 +176,7 @@ func (c *Coordinator) forge(serverProofInfo *ServerProofInfo) (*BatchInfo, error
 	}
 
 	c.batchNum = c.batchNum + 1
-	batchInfo := NewBatchInfo(c.batchNum, serverProofInfo) // to accumulate metadata of the batch
+	batchInfo := NewBatchInfo(c.batchNum, serverProof) // to accumulate metadata of the batch
 
 	var poolL2Txs []*common.PoolL2Tx
 	// var feesInfo
@@ -216,9 +234,11 @@ func (c *Coordinator) forge(serverProofInfo *ServerProofInfo) (*BatchInfo, error
 }
 
 // getProofCallForge gets the generated zkProof & sends it to the SmartContract
-func (c *Coordinator) getProofCallForge(batchInfo *BatchInfo) error {
-	serverProofInfo := batchInfo.serverProof
-	proof, err := serverProofInfo.GetProof() // blocking call, until not resolved don't continue. Returns when the proof server has calculated the proof
+func (c *Coordinator) getProofCallForge(batchInfo *BatchInfo, stopCh chan bool) error {
+	serverProof := batchInfo.serverProof
+	proof, err := serverProof.GetProof(stopCh) // blocking call, until not resolved don't continue. Returns when the proof server has calculated the proof
+	c.serverProofPool.Add(serverProof)
+	batchInfo.serverProof = nil
 	if err != nil {
 		return err
 	}
@@ -254,26 +274,29 @@ func (c *Coordinator) forgeCallConfirm(batchInfo *BatchInfo) error {
 }
 
 func (c *Coordinator) handleReorg() error {
-	return nil
+	return nil // TODO
 }
 
 // isForgeSequence returns true if the node is the Forger in the current ethereum block
 func (c *Coordinator) isForgeSequence() bool {
-	return c.isForgeSeq
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+	return c.isForgeSeq // TODO
 }
 
 func (c *Coordinator) purgeRemoveByTimeout() error {
-	return nil
+	return nil // TODO
 }
 
 func (c *Coordinator) purgeInvalidDueToL2TxsSelection(l2Txs []*common.PoolL2Tx) error {
-	return nil
+	return nil // TODO
 }
 
 func (c *Coordinator) shouldL1L2Batch() bool {
-	return false
+	return false // TODO
 }
 
 func (c *Coordinator) prepareForgeBatchArgs(batchInfo *BatchInfo) *eth.RollupForgeBatchArgs {
-	return nil
+	// TODO
+	return &eth.RollupForgeBatchArgs{}
 }

coordinator/coordinator_test.go

@@ -10,8 +10,8 @@ import (
 	"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/eth"
 	"github.com/hermeznetwork/hermez-node/log"
+	"github.com/hermeznetwork/hermez-node/test"
 	"github.com/hermeznetwork/hermez-node/txselector"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -77,7 +77,7 @@ func (cn *CoordNode) Start() {
 				} else if err != nil {
 					log.Errorw("CoordNode ForgeLoopFn", "error", err)
 				} else if !forge {
-					time.Sleep(500 * time.Millisecond)
+					time.Sleep(200 * time.Millisecond)
 				}
 			}
 		}
@@ -121,30 +121,53 @@ func (cn *CoordNode) Stop() {
 	cn.stopForgeCallConfirm <- true
 }
 
+type timer struct {
+	time int64
+}
+
+func (t *timer) Time() int64 {
+	currentTime := t.time
+	t.time++
+	return currentTime
+}
+
 func TestCoordinator(t *testing.T) {
 	txsel, bb := newTestModules(t)
 
 	conf := Config{}
 	hdb := &historydb.HistoryDB{}
-	c := NewCoordinator(conf, hdb, txsel, bb, &eth.Client{})
+	serverProofs := []ServerProofInterface{&ServerProof{}, &ServerProof{}}
+
+	var timer timer
+	ethClientSetup := test.NewClientSetupExample()
+	addr := ethClientSetup.AuctionVariables.BootCoordinator
+	ethClient := test.NewClient(true, &timer, addr, ethClientSetup)
+
+	c := NewCoordinator(conf, hdb, txsel, bb, serverProofs, ethClient)
 	cn := NewCoordNode(c)
 	cn.Start()
 	time.Sleep(1 * time.Second)
 
 	// simulate forgeSequence time
 	log.Info("simulate entering in forge time")
+	c.rw.Lock()
 	c.isForgeSeq = true
+	c.rw.Unlock()
 	time.Sleep(1 * time.Second)
 
 	// simulate going out from forgeSequence
 	log.Info("simulate going out from forge time")
+	c.rw.Lock()
 	c.isForgeSeq = false
+	c.rw.Unlock()
 	time.Sleep(1 * time.Second)
 
 	// simulate entering forgeSequence time again
 	log.Info("simulate entering in forge time again")
+	c.rw.Lock()
 	c.isForgeSeq = true
-	time.Sleep(1 * time.Second)
+	c.rw.Unlock()
+	time.Sleep(2 * time.Second)
 
 	// simulate stopping forgerLoop by channel
 	log.Info("simulate stopping forgerLoop by closing coordinator stopch")

coordinator/proofpool.go

@@ -1,39 +1,92 @@
 package coordinator
 
 import (
+	"time"
+
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/log"
 )
 
-// ServerProofInfo contains the data related to a ServerProof
-type ServerProofInfo struct {
+// ServerProofInterface is the interface to a ServerProof that calculates zk proofs
+type ServerProofInterface interface {
+	CalculateProof(zkInputs *common.ZKInputs) error
+	GetProof(stopCh chan bool) (*Proof, error)
+}
+
+// ServerProof contains the data related to a ServerProof
+type ServerProof struct {
 	// TODO
+	URL       string
 	Available bool
 }
 
+// NewServerProof creates a new ServerProof
+func NewServerProof(URL string) *ServerProof {
+	return &ServerProof{URL: URL}
+}
+
 // CalculateProof sends the *common.ZKInputs to the ServerProof to compute the
 // Proof
-func (p *ServerProofInfo) CalculateProof(zkInputs *common.ZKInputs) error {
+func (p *ServerProof) CalculateProof(zkInputs *common.ZKInputs) error {
+	return errTODO
+}
+
+// GetProof retreives the Proof from the ServerProof
+func (p *ServerProof) GetProof(stopCh chan bool) (*Proof, error) {
+	return nil, errTODO
+}
+
+// ServerProofMock is a mock ServerProof to be used in tests.  It doesn't calculate anything
+type ServerProofMock struct {
+}
+
+// CalculateProof sends the *common.ZKInputs to the ServerProof to compute the
+// Proof
+func (p *ServerProofMock) CalculateProof(zkInputs *common.ZKInputs) error {
 	return nil
 }
 
 // GetProof retreives the Proof from the ServerProof
-func (p *ServerProofInfo) GetProof() (*Proof, error) {
-	return nil, nil
+func (p *ServerProofMock) GetProof(stopCh chan bool) (*Proof, error) {
+	// Simulate a delay
+	select {
+	case <-time.After(200 * time.Millisecond): //nolint:gomnd
+		return &Proof{}, nil
+	case <-stopCh:
+		return nil, ErrStop
+	}
 }
 
-// ServerProofPool contains the multiple ServerProofInfo
+// ServerProofPool contains the multiple ServerProof
 type ServerProofPool struct {
-	// pool []ServerProofInfo
+	pool chan ServerProofInterface
 }
 
-// GetNextAvailable returns the available ServerProofInfo
-func (p *ServerProofPool) GetNextAvailable(stopCh chan bool) (*ServerProofInfo, error) {
+// NewServerProofPool creates a new pool of ServerProofs.
+func NewServerProofPool(maxServerProofs int) *ServerProofPool {
+	return &ServerProofPool{
+		pool: make(chan ServerProofInterface, maxServerProofs),
+	}
+}
+
+// Add a ServerProof to the pool
+func (p *ServerProofPool) Add(serverProof ServerProofInterface) {
+	p.pool <- serverProof
+}
+
+// Get returns the next available ServerProof
+func (p *ServerProofPool) Get(stopCh chan bool) (ServerProofInterface, error) {
 	select {
 	case <-stopCh:
-		log.Info("ServerProofPool.GetNextAvailable stopped")
+		log.Info("ServerProofPool.Get stopped")
 		return nil, ErrStop
 	default:
+		select {
+		case <-stopCh:
+			log.Info("ServerProofPool.Get stopped")
+			return nil, ErrStop
+		case serverProof := <-p.pool:
+			return serverProof, nil
+		}
 	}
-	return nil, nil
 }

eth/auction.go

@@ -7,6 +7,7 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethclient"
 	HermezAuctionProtocol "github.com/hermeznetwork/hermez-node/eth/contracts/auction"
+	"github.com/hermeznetwork/hermez-node/log"
 )
 
 // AuctionConstants are the constants of the Rollup Smart Contract
@@ -35,6 +36,16 @@ type SlotState struct {
 	Fulfilled    bool
 }
 
+// NewSlotState returns an empty SlotState
+func NewSlotState() *SlotState {
+	return &SlotState{
+		Forger:       ethCommon.Address{},
+		BidAmount:    big.NewInt(0),
+		ClosedMinBid: big.NewInt(0),
+		Fulfilled:    false,
+	}
+}
+
 // Coordinator is the details of the Coordinator identified by the forger address
 type Coordinator struct {
 	WithdrawalAddress ethCommon.Address
@@ -48,15 +59,15 @@ type AuctionVariables struct {
 	// Boot Coordinator Address
 	BootCoordinator ethCommon.Address
 	// The minimum bid value in a series of 6 slots
-	MinBidEpoch [6]*big.Int
+	DefaultSlotSetBid [6]*big.Int
 	// Distance (#slots) to the closest slot to which you can bid ( 2 Slots = 2 * 40 Blocks = 20 min )
 	ClosedAuctionSlots uint16
 	// Distance (#slots) to the farthest slot to which you can bid (30 days = 4320 slots )
 	OpenAuctionSlots uint16
 	// How the HEZ tokens deposited by the slot winner are distributed (Burn: 40% - Donation: 40% - HGT: 20%)
-	AllocationRatio [3]uint8
+	AllocationRatio [3]uint16
 	// Minimum outbid (percentage) over the previous one to consider it valid
-	Outbidding uint8
+	Outbidding uint16
 	// Number of blocks at the end of a slot in which any coordinator can forge if the winner has not forged one before
 	SlotDeadline uint8
 }
@@ -90,7 +101,7 @@ type AuctionEventNewClosedAuctionSlots struct {
 
 // AuctionEventNewOutbidding is an event of the Auction Smart Contract
 type AuctionEventNewOutbidding struct {
-	NewOutbidding uint8
+	NewOutbidding uint16
 }
 
 // AuctionEventNewDonationAddress is an event of the Auction Smart Contract
@@ -110,7 +121,7 @@ type AuctionEventNewOpenAuctionSlots struct {
 
 // AuctionEventNewAllocationRatio is an event of the Auction Smart Contract
 type AuctionEventNewAllocationRatio struct {
-	NewAllocationRatio [3]uint8
+	NewAllocationRatio [3]uint16
 }
 
 // AuctionEventNewCoordinator is an event of the Auction Smart Contract
@@ -136,9 +147,9 @@ type AuctionEventNewForgeAllocated struct {
 	GovernanceAmount *big.Int
 }
 
-// AuctionEventNewMinBidEpoch is an event of the Auction Smart Contract
-type AuctionEventNewMinBidEpoch struct {
-	SlotEpoch        int64
+// AuctionEventNewDefaultSlotSetBid is an event of the Auction Smart Contract
+type AuctionEventNewDefaultSlotSetBid struct {
+	SlotSet          int64
 	NewInitialMinBid *big.Int
 }
 
@@ -167,7 +178,7 @@ type AuctionEvents struct { //nolint:structcheck
 	NewCoordinator        []AuctionEventNewCoordinator
 	CoordinatorUpdated    []AuctionEventCoordinatorUpdated
 	NewForgeAllocated     []AuctionEventNewForgeAllocated
-	NewMinBidEpoch        []AuctionEventNewMinBidEpoch
+	NewDefaultSlotSetBid  []AuctionEventNewDefaultSlotSetBid
 	NewForge              []AuctionEventNewForge
 	HEZClaimed            []AuctionEventHEZClaimed
 }
@@ -186,7 +197,7 @@ func NewAuctionEvents() AuctionEvents {
 		NewCoordinator:        make([]AuctionEventNewCoordinator, 0),
 		CoordinatorUpdated:    make([]AuctionEventCoordinatorUpdated, 0),
 		NewForgeAllocated:     make([]AuctionEventNewForgeAllocated, 0),
-		NewMinBidEpoch:        make([]AuctionEventNewMinBidEpoch, 0),
+		NewDefaultSlotSetBid:  make([]AuctionEventNewDefaultSlotSetBid, 0),
 		NewForge:              make([]AuctionEventNewForge, 0),
 		HEZClaimed:            make([]AuctionEventHEZClaimed, 0),
 	}
@@ -205,15 +216,15 @@ type AuctionInterface interface {
 	AuctionGetOpenAuctionSlots() (uint16, error)
 	AuctionSetClosedAuctionSlots(newClosedAuctionSlots uint16) (*types.Transaction, error)
 	AuctionGetClosedAuctionSlots() (uint16, error)
-	AuctionSetOutbidding(newOutbidding uint8) (*types.Transaction, error)
-	AuctionGetOutbidding() (uint8, error)
-	AuctionSetAllocationRatio(newAllocationRatio [3]uint8) (*types.Transaction, error)
-	AuctionGetAllocationRatio() ([3]uint8, error)
+	AuctionSetOutbidding(newOutbidding uint16) (*types.Transaction, error)
+	AuctionGetOutbidding() (uint16, error)
+	AuctionSetAllocationRatio(newAllocationRatio [3]uint16) (*types.Transaction, error)
+	AuctionGetAllocationRatio() ([3]uint16, error)
 	AuctionSetDonationAddress(newDonationAddress ethCommon.Address) (*types.Transaction, error)
 	AuctionGetDonationAddress() (*ethCommon.Address, error)
 	AuctionSetBootCoordinator(newBootCoordinator ethCommon.Address) (*types.Transaction, error)
 	AuctionGetBootCoordinator() (*ethCommon.Address, error)
-	AuctionChangeEpochMinBid(slotEpoch int64, newInitialMinBid *big.Int) (*types.Transaction, error)
+	AuctionChangeDefaultSlotSetBid(slotSet int64, newInitialMinBid *big.Int) (*types.Transaction, error)
 
 	// Coordinator Management
 	AuctionRegisterCoordinator(forgerAddress ethCommon.Address, URL string) (*types.Transaction, error)
@@ -223,13 +234,13 @@ type AuctionInterface interface {
 	// Slot Info
 	AuctionGetCurrentSlotNumber() (int64, error)
 	AuctionGetMinBidBySlot(slot int64) (*big.Int, error)
-	AuctionGetMinBidEpoch(epoch uint8) (*big.Int, error)
+	AuctionGetDefaultSlotSetBid(slotSet uint8) (*big.Int, error)
 
 	// Bidding
 	// AuctionTokensReceived(operator, from, to ethCommon.Address, amount *big.Int,
 	// 	userData, operatorData []byte) error // Only called from another smart contract
 	AuctionBid(slot int64, bidAmount *big.Int, forger ethCommon.Address) (*types.Transaction, error)
-	AuctionMultiBid(startingSlot int64, endingSlot int64, slotEpoch [6]bool,
+	AuctionMultiBid(startingSlot int64, endingSlot int64, slotSet [6]bool,
 		maxBid, closedMinBid, budget *big.Int, forger ethCommon.Address) (*types.Transaction, error)
 
 	// Forge
@@ -267,6 +278,7 @@ func NewAuctionClient(client *EthereumClient, address ethCommon.Address) *Auctio
 
 // AuctionSetSlotDeadline is the interface to call the smart contract function
 func (c *AuctionClient) AuctionSetSlotDeadline(newDeadline uint8) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -288,6 +300,7 @@ func (c *AuctionClient) AuctionGetSlotDeadline() (uint8, error) {
 
 // AuctionSetOpenAuctionSlots is the interface to call the smart contract function
 func (c *AuctionClient) AuctionSetOpenAuctionSlots(newOpenAuctionSlots uint16) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -309,6 +322,7 @@ func (c *AuctionClient) AuctionGetOpenAuctionSlots() (uint16, error) {
 
 // AuctionSetClosedAuctionSlots is the interface to call the smart contract function
 func (c *AuctionClient) AuctionSetClosedAuctionSlots(newClosedAuctionSlots uint16) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -329,49 +343,58 @@ func (c *AuctionClient) AuctionGetClosedAuctionSlots() (uint16, error) {
 }
 
 // AuctionSetOutbidding is the interface to call the smart contract function
-func (c *AuctionClient) AuctionSetOutbidding(newOutbidding uint8) (*types.Transaction, error) {
+func (c *AuctionClient) AuctionSetOutbidding(newOutbidding uint16) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionGetOutbidding is the interface to call the smart contract function
-func (c *AuctionClient) AuctionGetOutbidding() (uint8, error) {
-	var outbidding uint8
-	if err := c.client.Call(func(ec *ethclient.Client) error {
-		auction, err := HermezAuctionProtocol.NewHermezAuctionProtocol(c.address, ec)
-		if err != nil {
-			return err
-		}
-		outbidding, err = auction.GetOutbidding(nil)
-		return err
-	}); err != nil {
-		return 0, err
-	}
-	return outbidding, nil
+func (c *AuctionClient) AuctionGetOutbidding() (uint16, error) {
+	// TODO: Update
+	// var outbidding uint8
+	// if err := c.client.Call(func(ec *ethclient.Client) error {
+	// 	auction, err := HermezAuctionProtocol.NewHermezAuctionProtocol(c.address, ec)
+	// 	if err != nil {
+	// 		return err
+	// 	}
+	// 	outbidding, err = auction.GetOutbidding(nil)
+	// 	return err
+	// }); err != nil {
+	// 	return 0, err
+	// }
+	// return outbidding, nil
+	log.Error("TODO")
+	return 0, errTODO
 }
 
 // AuctionSetAllocationRatio is the interface to call the smart contract function
-func (c *AuctionClient) AuctionSetAllocationRatio(newAllocationRatio [3]uint8) (*types.Transaction, error) {
+func (c *AuctionClient) AuctionSetAllocationRatio(newAllocationRatio [3]uint16) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionGetAllocationRatio is the interface to call the smart contract function
-func (c *AuctionClient) AuctionGetAllocationRatio() ([3]uint8, error) {
-	var allocationRation [3]uint8
-	if err := c.client.Call(func(ec *ethclient.Client) error {
-		auction, err := HermezAuctionProtocol.NewHermezAuctionProtocol(c.address, ec)
-		if err != nil {
-			return err
-		}
-		allocationRation, err = auction.GetAllocationRatio(nil)
-		return err
-	}); err != nil {
-		return [3]uint8{}, err
-	}
-	return allocationRation, nil
+func (c *AuctionClient) AuctionGetAllocationRatio() ([3]uint16, error) {
+	// TODO: Update
+	// var allocationRation [3]uint8
+	// if err := c.client.Call(func(ec *ethclient.Client) error {
+	// 	auction, err := HermezAuctionProtocol.NewHermezAuctionProtocol(c.address, ec)
+	// 	if err != nil {
+	// 		return err
+	// 	}
+	// 	allocationRation, err = auction.GetAllocationRatio(nil)
+	// 	return err
+	// }); err != nil {
+	// 	return [3]uint8{}, err
+	// }
+	// return allocationRation, nil
+	log.Error("TODO")
+	return [3]uint16{}, errTODO
 }
 
 // AuctionSetDonationAddress is the interface to call the smart contract function
 func (c *AuctionClient) AuctionSetDonationAddress(newDonationAddress ethCommon.Address) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -393,6 +416,7 @@ func (c *AuctionClient) AuctionGetDonationAddress() (*ethCommon.Address, error)
 
 // AuctionSetBootCoordinator is the interface to call the smart contract function
 func (c *AuctionClient) AuctionSetBootCoordinator(newBootCoordinator ethCommon.Address) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -412,23 +436,27 @@ func (c *AuctionClient) AuctionGetBootCoordinator() (*ethCommon.Address, error)
 	return &bootCoordinator, nil
 }
 
-// AuctionChangeEpochMinBid is the interface to call the smart contract function
-func (c *AuctionClient) AuctionChangeEpochMinBid(slotEpoch int64, newInitialMinBid *big.Int) (*types.Transaction, error) {
+// AuctionChangeDefaultSlotSetBid is the interface to call the smart contract function
+func (c *AuctionClient) AuctionChangeDefaultSlotSetBid(slotSet int64, newInitialMinBid *big.Int) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionRegisterCoordinator is the interface to call the smart contract function
 func (c *AuctionClient) AuctionRegisterCoordinator(forgerAddress ethCommon.Address, URL string) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionIsRegisteredCoordinator is the interface to call the smart contract function
 func (c *AuctionClient) AuctionIsRegisteredCoordinator(forgerAddress ethCommon.Address) (bool, error) {
+	log.Error("TODO")
 	return false, errTODO
 }
 
 // AuctionUpdateCoordinatorInfo is the interface to call the smart contract function
 func (c *AuctionClient) AuctionUpdateCoordinatorInfo(forgerAddress ethCommon.Address, newWithdrawAddress ethCommon.Address, newURL string) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -466,20 +494,24 @@ func (c *AuctionClient) AuctionGetMinBidBySlot(slot int64) (*big.Int, error) {
 	return minBid, nil
 }
 
-// AuctionGetMinBidEpoch is the interface to call the smart contract function
-func (c *AuctionClient) AuctionGetMinBidEpoch(epoch uint8) (*big.Int, error) {
-	var minBidEpoch *big.Int
-	if err := c.client.Call(func(ec *ethclient.Client) error {
-		auction, err := HermezAuctionProtocol.NewHermezAuctionProtocol(c.address, ec)
-		if err != nil {
-			return err
-		}
-		minBidEpoch, err = auction.GetMinBidEpoch(nil, epoch)
-		return err
-	}); err != nil {
-		return big.NewInt(0), err
-	}
-	return minBidEpoch, nil
+// AuctionGetDefaultSlotSetBid is the interface to call the smart contract function
+func (c *AuctionClient) AuctionGetDefaultSlotSetBid(slotSet uint8) (*big.Int, error) {
+	// TODO: Update
+	// 	var DefaultSlotSetBid *big.Int
+	// 	if err := c.client.Call(func(ec *ethclient.Client) error {
+	// 		auction, err := HermezAuctionProtocol.NewHermezAuctionProtocol(c.address, ec)
+	// 		if err != nil {
+	// 			return err
+	// 		}
+	// 		defaultSlotSetBid, err = auction.GetDefaultSlotSetBid(nil, slotSet)
+	// 		return err
+	// 	}); err != nil {
+	// 		return big.NewInt(0), err
+	// 	}
+	// 	return defaultSlotSetBid, nil
+
+	log.Error("TODO")
+	return nil, errTODO
 }
 
 // AuctionTokensReceived is the interface to call the smart contract function
@@ -489,16 +521,19 @@ func (c *AuctionClient) AuctionGetMinBidEpoch(epoch uint8) (*big.Int, error) {
 
 // AuctionBid is the interface to call the smart contract function
 func (c *AuctionClient) AuctionBid(slot int64, bidAmount *big.Int, forger ethCommon.Address) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionMultiBid is the interface to call the smart contract function
-func (c *AuctionClient) AuctionMultiBid(startingSlot int64, endingSlot int64, slotEpoch [6]bool, maxBid, closedMinBid, budget *big.Int, forger ethCommon.Address) (*types.Transaction, error) {
+func (c *AuctionClient) AuctionMultiBid(startingSlot int64, endingSlot int64, slotSet [6]bool, maxBid, closedMinBid, budget *big.Int, forger ethCommon.Address) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionCanForge is the interface to call the smart contract function
 func (c *AuctionClient) AuctionCanForge(forger ethCommon.Address) (bool, error) {
+	log.Error("TODO")
 	return false, errTODO
 }
 
@@ -509,15 +544,18 @@ func (c *AuctionClient) AuctionCanForge(forger ethCommon.Address) (bool, error)
 
 // AuctionClaimHEZ is the interface to call the smart contract function
 func (c *AuctionClient) AuctionClaimHEZ() (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionConstants returns the Constants of the Auction Smart Contract
 func (c *AuctionClient) AuctionConstants() (*AuctionConstants, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionEventsByBlock returns the events in a block that happened in the Auction Smart Contract
 func (c *AuctionClient) AuctionEventsByBlock(blockNum int64) (*AuctionEvents, *ethCommon.Hash, error) {
+	log.Error("TODO")
 	return nil, nil, errTODO
 }

eth/rollup.go

@@ -6,6 +6,7 @@ import (
 	ethCommon "github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/hermeznetwork/hermez-node/common"
+	"github.com/hermeznetwork/hermez-node/log"
 	"github.com/hermeznetwork/hermez-node/utils"
 	"github.com/iden3/go-iden3-crypto/babyjub"
 )
@@ -219,11 +220,13 @@ type RollupClient struct {
 
 // RollupForgeBatch is the interface to call the smart contract function
 func (c *RollupClient) RollupForgeBatch(args *RollupForgeBatchArgs) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupAddToken is the interface to call the smart contract function
 func (c *RollupClient) RollupAddToken(tokenAddress ethCommon.Address) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -234,76 +237,91 @@ func (c *RollupClient) RollupAddToken(tokenAddress ethCommon.Address) (*types.Tr
 
 // RollupWithdrawMerkleProof is the interface to call the smart contract function
 func (c *RollupClient) RollupWithdrawMerkleProof(tokenID int64, balance *big.Int, babyPubKey *babyjub.PublicKey, numExitRoot int64, siblings []*big.Int, idx int64, instantWithdraw bool) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupForceExit is the interface to call the smart contract function
 func (c *RollupClient) RollupForceExit(fromIdx int64, amountF utils.Float16, tokenID int64) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupForceTransfer is the interface to call the smart contract function
 func (c *RollupClient) RollupForceTransfer(fromIdx int64, amountF utils.Float16, tokenID, toIdx int64) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupCreateAccountDepositTransfer is the interface to call the smart contract function
 func (c *RollupClient) RollupCreateAccountDepositTransfer(babyPubKey babyjub.PublicKey, loadAmountF, amountF utils.Float16, tokenID int64, toIdx int64) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupDepositTransfer is the interface to call the smart contract function
 func (c *RollupClient) RollupDepositTransfer(fromIdx int64, loadAmountF, amountF utils.Float16, tokenID int64, toIdx int64) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupDeposit is the interface to call the smart contract function
 func (c *RollupClient) RollupDeposit(fromIdx int64, loadAmountF utils.Float16, tokenID int64) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupCreateAccountDepositFromRelayer is the interface to call the smart contract function
 func (c *RollupClient) RollupCreateAccountDepositFromRelayer(accountCreationAuthSig []byte, babyPubKey babyjub.PublicKey, loadAmountF utils.Float16) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupCreateAccountDeposit is the interface to call the smart contract function
 func (c *RollupClient) RollupCreateAccountDeposit(babyPubKey babyjub.PublicKey, loadAmountF utils.Float16, tokenID int64) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupGetTokenAddress is the interface to call the smart contract function
 func (c *RollupClient) RollupGetTokenAddress(tokenID int64) (*ethCommon.Address, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupGetL1TxFromQueue is the interface to call the smart contract function
 func (c *RollupClient) RollupGetL1TxFromQueue(queue int64, position int64) ([]byte, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupGetQueue is the interface to call the smart contract function
 func (c *RollupClient) RollupGetQueue(queue int64) ([]byte, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupUpdateForgeL1Timeout is the interface to call the smart contract function
 func (c *RollupClient) RollupUpdateForgeL1Timeout(newForgeL1Timeout int64) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupUpdateFeeL1UserTx is the interface to call the smart contract function
 func (c *RollupClient) RollupUpdateFeeL1UserTx(newFeeL1UserTx *big.Int) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupUpdateFeeAddToken is the interface to call the smart contract function
 func (c *RollupClient) RollupUpdateFeeAddToken(newFeeAddToken *big.Int) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupUpdateTokensHEZ is the interface to call the smart contract function
 func (c *RollupClient) RollupUpdateTokensHEZ(newTokenHEZ ethCommon.Address) (*types.Transaction, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -314,11 +332,13 @@ func (c *RollupClient) RollupUpdateTokensHEZ(newTokenHEZ ethCommon.Address) (*ty
 
 // RollupConstants returns the Constants of the Rollup Smart Contract
 func (c *RollupClient) RollupConstants() (*RollupConstants, error) {
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupEventsByBlock returns the events in a block that happened in the Rollup Smart Contract
 func (c *RollupClient) RollupEventsByBlock(blockNum int64) (*RollupEvents, *ethCommon.Hash, error) {
+	log.Error("TODO")
 	return nil, nil, errTODO
 }
 
@@ -329,5 +349,6 @@ func (c *RollupClient) RollupForgeBatchArgs(ethTxHash ethCommon.Hash) (*RollupFo
 	// m := abi.MethodById(txData) -> Method
 	// m.Inputs.Unpack(txData) -> Args
 	// client.TransactionReceipt()?
+	log.Error("TODO")
 	return nil, errTODO
 }

go.mod

@@ -20,6 +20,7 @@ require (
 	github.com/stretchr/testify v1.6.1
 	github.com/urfave/cli v1.22.1
 	github.com/urfave/cli/v2 v2.2.0
-	go.uber.org/zap v1.13.0
+	go.uber.org/multierr v1.6.0 // indirect
+	go.uber.org/zap v1.16.0
 	gopkg.in/go-playground/validator.v9 v9.29.1
 )

go.sum

@@ -601,13 +601,23 @@ go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.5.0 h1:OI5t8sDa1Or+q8AeE+yKeB/SDYioSHAgcVljj9JIETY=
 go.uber.org/atomic v1.5.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
+go.uber.org/atomic v1.6.0 h1:Ezj3JGmsOnG1MoRWQkPBsKLe9DwWD9QeXzTRzzldNVk=
+go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
+go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
+go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/multierr v1.3.0 h1:sFPn2GLc3poCkfrpIXGhBD2X0CMIo4Q/zSULXrj/+uc=
 go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
+go.uber.org/multierr v1.5.0 h1:KCa4XfM8CWFCpxXRGok+Q0SS/0XBhMDbHHGABQLvD2A=
+go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
+go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
+go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
 go.uber.org/zap v1.13.0 h1:nR6NoDBgAf67s68NhaXbsojM+2gxp3S1hWkHDl27pVU=
 go.uber.org/zap v1.13.0/go.mod h1:zwrFLgMcdUuIBviXEYEH1YKNaOBnKXsx2IPda5bBwHM=
+go.uber.org/zap v1.16.0 h1:uFRZXykJGK9lLY4HtgSw44DnIcAM+kRBP7x5m+NpAOM=
+go.uber.org/zap v1.16.0/go.mod h1:MA8QOfq0BHJwdXa996Y4dYkAqRKB8/1K1QMMZVaNZjQ=
 golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=

node/node.go

@@ -86,28 +86,32 @@ func NewNode(mode Mode, cfg *config.Node, coordCfg *config.Coordinator) (*Node,
 			cfg.PostgreSQL.Host,
 			cfg.PostgreSQL.User,
 			cfg.PostgreSQL.Password,
-			cfg.L2DB.Name,
-			cfg.L2DB.SafetyPeriod,
-			cfg.L2DB.MaxTxs,
-			cfg.L2DB.TTL.Duration,
+			coordCfg.L2DB.Name,
+			coordCfg.L2DB.SafetyPeriod,
+			coordCfg.L2DB.MaxTxs,
+			coordCfg.L2DB.TTL.Duration,
 		)
 		if err != nil {
 			return nil, err
 		}
 		// TODO: Get (maxL1UserTxs, maxL1OperatorTxs, maxTxs) from the smart contract
-		txSelector, err := txselector.NewTxSelector(cfg.TxSelector.Path, stateDB, l2DB, 10, 10, 10)
+		txSelector, err := txselector.NewTxSelector(coordCfg.TxSelector.Path, stateDB, l2DB, 10, 10, 10)
 		if err != nil {
 			return nil, err
 		}
 		// TODO: Get (configCircuits []ConfigCircuit, batchNum common.BatchNum, nLevels uint64) from smart contract
 		nLevels := uint64(32) //nolint:gomnd
-		batchBuilder, err := batchbuilder.NewBatchBuilder(cfg.BatchBuilder.Path, stateDB, nil, 0, nLevels)
+		batchBuilder, err := batchbuilder.NewBatchBuilder(coordCfg.BatchBuilder.Path, stateDB, nil, 0, nLevels)
 		if err != nil {
 			return nil, err
 		}
 		if err != nil {
 			return nil, err
 		}
+		serverProofs := make([]coordinator.ServerProofInterface, len(coordCfg.ServerProofs))
+		for i, serverProofCfg := range coordCfg.ServerProofs {
+			serverProofs[i] = coordinator.NewServerProof(serverProofCfg.URL)
+		}
 		coord = coordinator.NewCoordinator(
 			coordinator.Config{
 				ForgerAddress: coordCfg.ForgerAddress,
@@ -115,6 +119,7 @@ func NewNode(mode Mode, cfg *config.Node, coordCfg *config.Coordinator) (*Node,
 			historyDB,
 			txSelector,
 			batchBuilder,
+			serverProofs,
 			client,
 		)
 	}

test/ethclient.go

@@ -65,8 +65,8 @@ func (a *AuctionBlock) getCurrentSlotNumber() int64 {
 	return a.getSlotNumber(a.Eth.BlockNum)
 }
 
-func (a *AuctionBlock) getEpoch(slot int64) int64 {
-	return slot % int64(len(a.Vars.MinBidEpoch))
+func (a *AuctionBlock) getSlotSet(slot int64) int64 {
+	return slot % int64(len(a.Vars.DefaultSlotSetBid))
 }
 
 func (a *AuctionBlock) getMinBidBySlot(slot int64) (*big.Int, error) {
@@ -74,23 +74,89 @@ func (a *AuctionBlock) getMinBidBySlot(slot int64) (*big.Int, error) {
 		return nil, errBidClosed
 	}
 
-	epoch := a.getEpoch(slot)
+	slotSet := a.getSlotSet(slot)
+	// fmt.Println("slot:", slot, "slotSet:", slotSet)
 	var prevBid *big.Int
 	slotState, ok := a.State.Slots[slot]
+	if !ok {
+		slotState = eth.NewSlotState()
+		a.State.Slots[slot] = slotState
+	}
 	// If the bidAmount for a slot is 0 it means that it has not yet been bid, so the midBid will be the minimum
 	// bid for the slot time plus the outbidding set, otherwise it will be the bidAmount plus the outbidding
-	if !ok || slotState.BidAmount.Cmp(big.NewInt(0)) == 0 {
-		prevBid = a.Vars.MinBidEpoch[epoch]
+	if slotState.BidAmount.Cmp(big.NewInt(0)) == 0 {
+		prevBid = a.Vars.DefaultSlotSetBid[slotSet]
 	} else {
 		prevBid = slotState.BidAmount
 	}
 	outBid := new(big.Int).Set(prevBid)
+	// fmt.Println("outBid:", outBid)
 	outBid.Mul(outBid, big.NewInt(int64(a.Vars.Outbidding)))
-	outBid.Div(outBid, big.NewInt(100)) //nolint:gomnd
+	outBid.Div(outBid, big.NewInt(10000)) //nolint:gomnd
 	outBid.Add(prevBid, outBid)
+	// fmt.Println("minBid:", outBid)
 	return outBid, nil
 }
 
+func (a *AuctionBlock) forge(forger ethCommon.Address) error {
+	if ok, err := a.canForge(forger, a.Eth.BlockNum); err != nil {
+		return err
+	} else if !ok {
+		return fmt.Errorf("Can't forge")
+	}
+
+	slotToForge := a.getSlotNumber(a.Eth.BlockNum)
+	slotState, ok := a.State.Slots[slotToForge]
+	if !ok {
+		slotState = eth.NewSlotState()
+		a.State.Slots[slotToForge] = slotState
+	}
+	slotState.Fulfilled = true
+
+	a.Events.NewForge = append(a.Events.NewForge, eth.AuctionEventNewForge{
+		Forger:      forger,
+		CurrentSlot: slotToForge,
+	})
+	return nil
+}
+
+func (a *AuctionBlock) canForge(forger ethCommon.Address, blockNum int64) (bool, error) {
+	if blockNum < a.Constants.GenesisBlockNum {
+		return false, fmt.Errorf("Auction has not started yet")
+	}
+
+	slotToForge := a.getSlotNumber(blockNum)
+	// Get the relativeBlock to check if the slotDeadline has been exceeded
+	relativeBlock := blockNum - (a.Constants.GenesisBlockNum + (slotToForge * int64(a.Constants.BlocksPerSlot)))
+
+	// If the closedMinBid is 0 it means that we have to take as minBid the one that is set for this slot set,
+	// otherwise the one that has been saved will be used
+	var minBid *big.Int
+	slotState, ok := a.State.Slots[slotToForge]
+	if !ok {
+		slotState = eth.NewSlotState()
+		a.State.Slots[slotToForge] = slotState
+	}
+	if slotState.ClosedMinBid.Cmp(big.NewInt(0)) == 0 {
+		minBid = a.Vars.DefaultSlotSetBid[a.getSlotSet(slotToForge)]
+	} else {
+		minBid = slotState.ClosedMinBid
+	}
+
+	if !slotState.Fulfilled && (relativeBlock >= int64(a.Vars.SlotDeadline)) {
+		// if the relative block has exceeded the slotDeadline and no batch has been forged, anyone can forge
+		return true, nil
+	} else if slotState.Forger == forger && slotState.BidAmount.Cmp(minBid) >= 0 {
+		// if forger bidAmount has exceeded the minBid it can forge
+		return true, nil
+	} else if a.Vars.BootCoordinator == forger && slotState.BidAmount.Cmp(minBid) == -1 {
+		// if it's the boot coordinator and it has not been bid or the bid is below the minimum it can forge
+		return true, nil
+	} else {
+		return false, nil
+	}
+}
+
 // EthereumBlock stores all the generic data related to the an ethereum block
 type EthereumBlock struct {
 	BlockNum   int64
@@ -107,13 +173,18 @@ type Block struct {
 	Eth     *EthereumBlock
 }
 
-// Next prepares the successive block.
-func (b *Block) Next() *Block {
-	blockNextRaw, err := copystructure.Copy(b)
+func (b *Block) copy() *Block {
+	bCopyRaw, err := copystructure.Copy(b)
 	if err != nil {
 		panic(err)
 	}
-	blockNext := blockNextRaw.(*Block)
+	bCopy := bCopyRaw.(*Block)
+	return bCopy
+}
+
+// Next prepares the successive block.
+func (b *Block) Next() *Block {
+	blockNext := b.copy()
 	blockNext.Rollup.Events = eth.NewRollupEvents()
 	blockNext.Auction.Events = eth.NewAuctionEvents()
 	blockNext.Eth = &EthereumBlock{
@@ -138,34 +209,59 @@ type ClientSetup struct {
 }
 
 // NewClientSetupExample returns a ClientSetup example with hardcoded realistic values.
-// TODO: Fill all values that are currently default.
 //nolint:gomnd
 func NewClientSetupExample() *ClientSetup {
-	rollupConstants := &eth.RollupConstants{}
+	rfield, ok := new(big.Int).SetString("21888242871839275222246405745257275088548364400416034343698204186575808495617", 10)
+	if !ok {
+		panic("bad rfield")
+	}
+	initialMinimalBidding, ok := new(big.Int).SetString("10000000000000000000", 10) // 10 * (1e18)
+	if !ok {
+		panic("bad initialMinimalBidding")
+	}
+	tokenHEZ := ethCommon.HexToAddress("0x51D243D62852Bba334DD5cc33f242BAc8c698074")
+	governanceAddress := ethCommon.HexToAddress("0x688EfD95BA4391f93717CF02A9aED9DBD2855cDd")
+	rollupConstants := &eth.RollupConstants{
+		MaxAmountDeposit:   new(big.Int).Lsh(big.NewInt(1), 128),
+		MaxAmountL2:        new(big.Int).Lsh(big.NewInt(1), 192),
+		MaxTokens:          0xffffffff,
+		MaxL1Tx:            256,
+		MaxL1UserTx:        128,
+		Rfield:             rfield,
+		L1CoordinatorBytes: 101,
+		L1UserBytes:        68,
+		L2Bytes:            11,
+	}
 	rollupVariables := &eth.RollupVariables{
-		MaxTxVerifiers:     make([]int, 0),
-		TokenHEZ:           ethCommon.Address{},
-		GovernanceAddress:  ethCommon.Address{},
-		SafetyBot:          ethCommon.Address{},
-		ConsensusContract:  ethCommon.Address{},
-		WithdrawalContract: ethCommon.Address{},
-		FeeAddToken:        big.NewInt(1),
-		ForgeL1Timeout:     16,
-		FeeL1UserTx:        big.NewInt(2),
+		MaxTxVerifiers:     []int{512, 1024, 2048},
+		TokenHEZ:           tokenHEZ,
+		GovernanceAddress:  governanceAddress,
+		SafetyBot:          ethCommon.HexToAddress("0x84d8B79E84fe87B14ad61A554e740f6736bF4c20"),
+		ConsensusContract:  ethCommon.HexToAddress("0x8E442975805fb1908f43050c9C1A522cB0e28D7b"),
+		WithdrawalContract: ethCommon.HexToAddress("0x5CB7979cBdbf65719BEE92e4D15b7b7Ed3D79114"),
+		FeeAddToken:        big.NewInt(11),
+		ForgeL1Timeout:     9,
+		FeeL1UserTx:        big.NewInt(22),
 	}
 	auctionConstants := &eth.AuctionConstants{
-		BlocksPerSlot: 40,
+		DelayGenesis:          0,
+		BlocksPerSlot:         40,
+		InitialMinimalBidding: initialMinimalBidding,
+		GenesisBlockNum:       0,
+		GovernanceAddress:     governanceAddress,
+		TokenHEZ:              tokenHEZ,
+		HermezRollup:          ethCommon.HexToAddress("0x474B6e29852257491cf283EfB1A9C61eBFe48369"),
 	}
 	auctionVariables := &eth.AuctionVariables{
-		DonationAddress: ethCommon.Address{},
-		BootCoordinator: ethCommon.Address{},
-		MinBidEpoch: [6]*big.Int{
-			big.NewInt(10), big.NewInt(11), big.NewInt(12),
-			big.NewInt(13), big.NewInt(14), big.NewInt(15)},
+		DonationAddress: ethCommon.HexToAddress("0x61Ed87CF0A1496b49A420DA6D84B58196b98f2e7"),
+		BootCoordinator: ethCommon.HexToAddress("0xE39fEc6224708f0772D2A74fd3f9055A90E0A9f2"),
+		DefaultSlotSetBid: [6]*big.Int{
+			big.NewInt(1000), big.NewInt(1100), big.NewInt(1200),
+			big.NewInt(1300), big.NewInt(1400), big.NewInt(1500)},
 		ClosedAuctionSlots: 2,
-		OpenAuctionSlots:   100,
-		AllocationRatio:    [3]uint8{},
-		Outbidding:         10,
+		OpenAuctionSlots:   4320,
+		AllocationRatio:    [3]uint16{4000, 4000, 2000},
+		Outbidding:         1000,
 		SlotDeadline:       20,
 	}
 	return &ClientSetup{
@@ -277,6 +373,17 @@ func NewClient(l bool, timer Timer, addr ethCommon.Address, setup *ClientSetup)
 // Mock Control
 //
 
+func (c *Client) setNextBlock(block *Block) {
+	c.blocks[c.blockNum+1] = block
+}
+
+func (c *Client) revertIfErr(err error, block *Block) {
+	if err != nil {
+		log.Infow("TestClient revert", "block", block.Eth.BlockNum, "err", err)
+		c.setNextBlock(block)
+	}
+}
+
 // Debugf calls log.Debugf if c.log is true
 func (c *Client) Debugf(template string, args ...interface{}) {
 	if c.log {
@@ -439,11 +546,30 @@ func (c *Client) newTransaction(name string, value interface{}) *types.Transacti
 }
 
 // RollupForgeBatch is the interface to call the smart contract function
-func (c *Client) RollupForgeBatch(*eth.RollupForgeBatchArgs) (*types.Transaction, error) {
+func (c *Client) RollupForgeBatch(args *eth.RollupForgeBatchArgs) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
-	return nil, errTODO
+	a := c.nextBlock().Auction
+	ok, err := a.canForge(c.addr, a.Eth.BlockNum)
+	if err != nil {
+		return nil, err
+	}
+	if !ok {
+		return nil, fmt.Errorf("incorrect slot")
+	}
+
+	// TODO: Verify proof
+
+	// Auction
+	err = a.forge(c.addr)
+	if err != nil {
+		return nil, err
+	}
+
+	return c.addBatch(args)
 }
 
 // CtlAddBatch adds forged batch to the Rollup, without checking any ZKProof
@@ -451,11 +577,17 @@ func (c *Client) CtlAddBatch(args *eth.RollupForgeBatchArgs) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 
+	if _, err := c.addBatch(args); err != nil {
+		panic(err)
+	}
+}
+
+func (c *Client) addBatch(args *eth.RollupForgeBatchArgs) (*types.Transaction, error) {
 	nextBlock := c.nextBlock()
 	r := nextBlock.Rollup
 	r.State.StateRoot = args.NewStRoot
 	if args.NewLastIdx < r.State.CurrentIdx {
-		panic("args.NewLastIdx < r.State.CurrentIdx")
+		return nil, fmt.Errorf("args.NewLastIdx < r.State.CurrentIdx")
 	}
 	r.State.CurrentIdx = args.NewLastIdx
 	r.State.ExitRoots = append(r.State.ExitRoots, args.NewExitRoot)
@@ -472,12 +604,16 @@ func (c *Client) CtlAddBatch(args *eth.RollupForgeBatchArgs) {
 		BatchNum:  int64(len(r.State.ExitRoots)),
 		EthTxHash: ethTx.Hash(),
 	})
+
+	return ethTx, nil
 }
 
 // RollupAddToken is the interface to call the smart contract function
-func (c *Client) RollupAddToken(tokenAddress ethCommon.Address) (*types.Transaction, error) {
+func (c *Client) RollupAddToken(tokenAddress ethCommon.Address) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
 	nextBlock := c.nextBlock()
 	r := nextBlock.Rollup
@@ -498,66 +634,90 @@ func (c *Client) RollupAddToken(tokenAddress ethCommon.Address) (*types.Transact
 // }
 
 // RollupWithdrawMerkleProof is the interface to call the smart contract function
-func (c *Client) RollupWithdrawMerkleProof(tokenID int64, balance *big.Int, babyPubKey *babyjub.PublicKey, numExitRoot int64, siblings []*big.Int, idx int64, instantWithdraw bool) (*types.Transaction, error) {
+func (c *Client) RollupWithdrawMerkleProof(tokenID int64, balance *big.Int, babyPubKey *babyjub.PublicKey, numExitRoot int64, siblings []*big.Int, idx int64, instantWithdraw bool) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupForceExit is the interface to call the smart contract function
-func (c *Client) RollupForceExit(fromIdx int64, amountF utils.Float16, tokenID int64) (*types.Transaction, error) {
+func (c *Client) RollupForceExit(fromIdx int64, amountF utils.Float16, tokenID int64) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupForceTransfer is the interface to call the smart contract function
-func (c *Client) RollupForceTransfer(fromIdx int64, amountF utils.Float16, tokenID, toIdx int64) (*types.Transaction, error) {
+func (c *Client) RollupForceTransfer(fromIdx int64, amountF utils.Float16, tokenID, toIdx int64) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupCreateAccountDepositTransfer is the interface to call the smart contract function
-func (c *Client) RollupCreateAccountDepositTransfer(babyPubKey babyjub.PublicKey, loadAmountF, amountF utils.Float16, tokenID int64, toIdx int64) (*types.Transaction, error) {
+func (c *Client) RollupCreateAccountDepositTransfer(babyPubKey babyjub.PublicKey, loadAmountF, amountF utils.Float16, tokenID int64, toIdx int64) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupDepositTransfer is the interface to call the smart contract function
-func (c *Client) RollupDepositTransfer(fromIdx int64, loadAmountF, amountF utils.Float16, tokenID int64, toIdx int64) (*types.Transaction, error) {
+func (c *Client) RollupDepositTransfer(fromIdx int64, loadAmountF, amountF utils.Float16, tokenID int64, toIdx int64) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupDeposit is the interface to call the smart contract function
-func (c *Client) RollupDeposit(fromIdx int64, loadAmountF utils.Float16, tokenID int64) (*types.Transaction, error) {
+func (c *Client) RollupDeposit(fromIdx int64, loadAmountF utils.Float16, tokenID int64) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupCreateAccountDepositFromRelayer is the interface to call the smart contract function
-func (c *Client) RollupCreateAccountDepositFromRelayer(accountCreationAuthSig []byte, babyPubKey babyjub.PublicKey, loadAmountF utils.Float16) (*types.Transaction, error) {
+func (c *Client) RollupCreateAccountDepositFromRelayer(accountCreationAuthSig []byte, babyPubKey babyjub.PublicKey, loadAmountF utils.Float16) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupCreateAccountDeposit is the interface to call the smart contract function
-func (c *Client) RollupCreateAccountDeposit(babyPubKey babyjub.PublicKey, loadAmountF utils.Float16, tokenID int64) (*types.Transaction, error) {
+func (c *Client) RollupCreateAccountDeposit(babyPubKey babyjub.PublicKey, loadAmountF utils.Float16, tokenID int64) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -566,6 +726,7 @@ func (c *Client) RollupGetTokenAddress(tokenID int64) (*ethCommon.Address, error
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -574,6 +735,7 @@ func (c *Client) RollupGetL1TxFromQueue(queue int64, position int64) ([]byte, er
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -582,38 +744,51 @@ func (c *Client) RollupGetQueue(queue int64) ([]byte, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupUpdateForgeL1Timeout is the interface to call the smart contract function
-func (c *Client) RollupUpdateForgeL1Timeout(newForgeL1Timeout int64) (*types.Transaction, error) {
+func (c *Client) RollupUpdateForgeL1Timeout(newForgeL1Timeout int64) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupUpdateFeeL1UserTx is the interface to call the smart contract function
-func (c *Client) RollupUpdateFeeL1UserTx(newFeeL1UserTx *big.Int) (*types.Transaction, error) {
+func (c *Client) RollupUpdateFeeL1UserTx(newFeeL1UserTx *big.Int) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupUpdateFeeAddToken is the interface to call the smart contract function
-func (c *Client) RollupUpdateFeeAddToken(newFeeAddToken *big.Int) (*types.Transaction, error) {
+func (c *Client) RollupUpdateFeeAddToken(newFeeAddToken *big.Int) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // RollupUpdateTokensHEZ is the interface to call the smart contract function
-func (c *Client) RollupUpdateTokensHEZ(newTokenHEZ ethCommon.Address) (*types.Transaction, error) {
+func (c *Client) RollupUpdateTokensHEZ(newTokenHEZ ethCommon.Address) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -627,6 +802,7 @@ func (c *Client) RollupConstants() (*eth.RollupConstants, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -659,10 +835,13 @@ func (c *Client) RollupForgeBatchArgs(ethTxHash ethCommon.Hash) (*eth.RollupForg
 //
 
 // AuctionSetSlotDeadline is the interface to call the smart contract function
-func (c *Client) AuctionSetSlotDeadline(newDeadline uint8) (*types.Transaction, error) {
+func (c *Client) AuctionSetSlotDeadline(newDeadline uint8) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -671,14 +850,18 @@ func (c *Client) AuctionGetSlotDeadline() (uint8, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return 0, errTODO
 }
 
 // AuctionSetOpenAuctionSlots is the interface to call the smart contract function
-func (c *Client) AuctionSetOpenAuctionSlots(newOpenAuctionSlots uint16) (*types.Transaction, error) {
+func (c *Client) AuctionSetOpenAuctionSlots(newOpenAuctionSlots uint16) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -687,14 +870,18 @@ func (c *Client) AuctionGetOpenAuctionSlots() (uint16, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return 0, errTODO
 }
 
 // AuctionSetClosedAuctionSlots is the interface to call the smart contract function
-func (c *Client) AuctionSetClosedAuctionSlots(newClosedAuctionSlots uint16) (*types.Transaction, error) {
+func (c *Client) AuctionSetClosedAuctionSlots(newClosedAuctionSlots uint16) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -703,46 +890,58 @@ func (c *Client) AuctionGetClosedAuctionSlots() (uint16, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return 0, errTODO
 }
 
 // AuctionSetOutbidding is the interface to call the smart contract function
-func (c *Client) AuctionSetOutbidding(newOutbidding uint8) (*types.Transaction, error) {
+func (c *Client) AuctionSetOutbidding(newOutbidding uint16) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionGetOutbidding is the interface to call the smart contract function
-func (c *Client) AuctionGetOutbidding() (uint8, error) {
+func (c *Client) AuctionGetOutbidding() (uint16, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return 0, errTODO
 }
 
 // AuctionSetAllocationRatio is the interface to call the smart contract function
-func (c *Client) AuctionSetAllocationRatio(newAllocationRatio [3]uint8) (*types.Transaction, error) {
+func (c *Client) AuctionSetAllocationRatio(newAllocationRatio [3]uint16) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionGetAllocationRatio is the interface to call the smart contract function
-func (c *Client) AuctionGetAllocationRatio() ([3]uint8, error) {
+func (c *Client) AuctionGetAllocationRatio() ([3]uint16, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
-	return [3]uint8{}, errTODO
+	log.Error("TODO")
+	return [3]uint16{}, errTODO
 }
 
 // AuctionSetDonationAddress is the interface to call the smart contract function
-func (c *Client) AuctionSetDonationAddress(newDonationAddress ethCommon.Address) (*types.Transaction, error) {
+func (c *Client) AuctionSetDonationAddress(newDonationAddress ethCommon.Address) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -751,14 +950,18 @@ func (c *Client) AuctionGetDonationAddress() (*ethCommon.Address, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionSetBootCoordinator is the interface to call the smart contract function
-func (c *Client) AuctionSetBootCoordinator(newBootCoordinator ethCommon.Address) (*types.Transaction, error) {
+func (c *Client) AuctionSetBootCoordinator(newBootCoordinator ethCommon.Address) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -773,18 +976,23 @@ func (c *Client) AuctionGetBootCoordinator() (*ethCommon.Address, error) {
 	return &a.Vars.BootCoordinator, nil
 }
 
-// AuctionChangeEpochMinBid is the interface to call the smart contract function
-func (c *Client) AuctionChangeEpochMinBid(slotEpoch int64, newInitialMinBid *big.Int) (*types.Transaction, error) {
+// AuctionChangeDefaultSlotSetBid is the interface to call the smart contract function
+func (c *Client) AuctionChangeDefaultSlotSetBid(slotSet int64, newInitialMinBid *big.Int) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
 // AuctionRegisterCoordinator is the interface to call the smart contract function
-func (c *Client) AuctionRegisterCoordinator(forgerAddress ethCommon.Address, URL string) (*types.Transaction, error) {
+func (c *Client) AuctionRegisterCoordinator(forgerAddress ethCommon.Address, URL string) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
 	nextBlock := c.nextBlock()
 	a := nextBlock.Auction
@@ -816,14 +1024,18 @@ func (c *Client) AuctionIsRegisteredCoordinator(forgerAddress ethCommon.Address)
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return false, errTODO
 }
 
 // AuctionUpdateCoordinatorInfo is the interface to call the smart contract function
-func (c *Client) AuctionUpdateCoordinatorInfo(forgerAddress ethCommon.Address, newWithdrawAddress ethCommon.Address, newURL string) (*types.Transaction, error) {
+func (c *Client) AuctionUpdateCoordinatorInfo(forgerAddress ethCommon.Address, newWithdrawAddress ethCommon.Address, newURL string) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -832,6 +1044,7 @@ func (c *Client) AuctionGetCurrentSlotNumber() (int64, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return 0, errTODO
 }
 
@@ -840,14 +1053,16 @@ func (c *Client) AuctionGetMinBidBySlot(slot int64) (*big.Int, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
-// AuctionGetMinBidEpoch is the interface to call the smart contract function
-func (c *Client) AuctionGetMinBidEpoch(epoch uint8) (*big.Int, error) {
+// AuctionGetDefaultSlotSetBid is the interface to call the smart contract function
+func (c *Client) AuctionGetDefaultSlotSetBid(slotSet uint8) (*big.Int, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -857,9 +1072,11 @@ func (c *Client) AuctionGetMinBidEpoch(epoch uint8) (*big.Int, error) {
 // }
 
 // AuctionBid is the interface to call the smart contract function
-func (c *Client) AuctionBid(slot int64, bidAmount *big.Int, forger ethCommon.Address) (*types.Transaction, error) {
+func (c *Client) AuctionBid(slot int64, bidAmount *big.Int, forger ethCommon.Address) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { func() { c.revertIfErr(err, cpy) }() }()
 
 	nextBlock := c.nextBlock()
 	a := nextBlock.Auction
@@ -886,7 +1103,7 @@ func (c *Client) AuctionBid(slot int64, bidAmount *big.Int, forger ethCommon.Add
 
 	slotState, ok := a.State.Slots[slot]
 	if !ok {
-		slotState = &eth.SlotState{}
+		slotState = eth.NewSlotState()
 		a.State.Slots[slot] = slotState
 	}
 	slotState.Forger = forger
@@ -904,10 +1121,13 @@ func (c *Client) AuctionBid(slot int64, bidAmount *big.Int, forger ethCommon.Add
 }
 
 // AuctionMultiBid is the interface to call the smart contract function
-func (c *Client) AuctionMultiBid(startingSlot int64, endingSlot int64, slotEpoch [6]bool, maxBid, closedMinBid, budget *big.Int, forger ethCommon.Address) (*types.Transaction, error) {
+func (c *Client) AuctionMultiBid(startingSlot int64, endingSlot int64, slotSet [6]bool, maxBid, closedMinBid, budget *big.Int, forger ethCommon.Address) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 
@@ -916,7 +1136,9 @@ func (c *Client) AuctionCanForge(forger ethCommon.Address) (bool, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
-	return false, errTODO
+	currentBlock := c.currentBlock()
+	a := currentBlock.Auction
+	return a.canForge(forger, a.Eth.BlockNum)
 }
 
 // AuctionForge is the interface to call the smart contract function
@@ -925,10 +1147,13 @@ func (c *Client) AuctionCanForge(forger ethCommon.Address) (bool, error) {
 // }
 
 // AuctionClaimHEZ is the interface to call the smart contract function
-func (c *Client) AuctionClaimHEZ() (*types.Transaction, error) {
+func (c *Client) AuctionClaimHEZ() (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
+	cpy := c.nextBlock().copy()
+	defer func() { c.revertIfErr(err, cpy) }()
 
+	log.Error("TODO")
 	return nil, errTODO
 }
 

test/ethclient_test.go

@@ -72,16 +72,22 @@ func TestClientAuction(t *testing.T) {
 	var timer timer
 	clientSetup := NewClientSetupExample()
 	clientSetup.AuctionVariables.ClosedAuctionSlots = 2
-	clientSetup.AuctionVariables.OpenAuctionSlots = 100
+	clientSetup.AuctionVariables.OpenAuctionSlots = 4320
+	clientSetup.AuctionVariables.DefaultSlotSetBid = [6]*big.Int{
+		big.NewInt(1000), big.NewInt(1100), big.NewInt(1200),
+		big.NewInt(1300), big.NewInt(1400), big.NewInt(1500)}
 	c := NewClient(true, &timer, addrWithdraw, clientSetup)
 
+	// Check several cases in which bid doesn't succed, and also do 2 successful bids.
+
 	_, err := c.AuctionBid(0, big.NewInt(1), addrForge)
 	assert.Equal(t, errBidClosed, err)
 
-	_, err = c.AuctionBid(102, big.NewInt(1), addrForge)
+	_, err = c.AuctionBid(4322, big.NewInt(1), addrForge)
 	assert.Equal(t, errBidNotOpen, err)
 
-	_, err = c.AuctionBid(101, big.NewInt(16), addrForge)
+	// 101 % 6 = 5;  defaultSlotSetBid[5] = 1500;  1500 + 10% = 1650
+	_, err = c.AuctionBid(101, big.NewInt(1650), addrForge)
 	assert.Equal(t, errCoordNotReg, err)
 
 	_, err = c.AuctionRegisterCoordinator(addrForge, "https://foo.bar")
@@ -90,7 +96,7 @@ func TestClientAuction(t *testing.T) {
 	_, err = c.AuctionBid(3, big.NewInt(1), addrForge)
 	assert.Equal(t, errBidBelowMin, err)
 
-	_, err = c.AuctionBid(3, big.NewInt(16), addrForge)
+	_, err = c.AuctionBid(3, big.NewInt(1650), addrForge)
 	assert.Nil(t, err)
 
 	_, err = c.AuctionRegisterCoordinator(addrForge2, "https://foo2.bar")
@@ -99,7 +105,8 @@ func TestClientAuction(t *testing.T) {
 	_, err = c.AuctionBid(3, big.NewInt(16), addrForge2)
 	assert.Equal(t, errBidBelowMin, err)
 
-	_, err = c.AuctionBid(3, big.NewInt(17), addrForge2)
+	// 1650 + 10% = 1815
+	_, err = c.AuctionBid(3, big.NewInt(1815), addrForge2)
 	assert.Nil(t, err)
 
 	c.CtlMineBlock()