Merge pull request #117 from hermeznetwork/feature/ethclient5

Implement basic auction funcs in test.Client

eth/auction.go

@@ -62,12 +62,11 @@ type AuctionVariables struct {
 // AuctionState represents the state of the Rollup in the Smart Contract
 type AuctionState struct {
 	// Mapping to control slot state
-	Slots map[int64]SlotState
+	Slots map[int64]*SlotState
 	// Mapping to control balances pending to claim
 	PendingBalances map[ethCommon.Address]*big.Int
-
 	// Mapping to register all the coordinators. The address used for the mapping is the forger address
-	Coordinators map[ethCommon.Address]Coordinator
+	Coordinators map[ethCommon.Address]*Coordinator
 }
 
 // AuctionEventNewBid is an event of the Auction Smart Contract

test/ethclient.go

@@ -6,6 +6,8 @@ import (
 	"encoding/json"
 	"fmt"
 	"math/big"
+	"reflect"
+	"sync"
 	"time"
 
 	ethCommon "github.com/ethereum/go-ethereum/common"
@@ -18,18 +20,75 @@ import (
 	"github.com/mitchellh/copystructure"
 )
 
+func init() {
+	copystructure.Copiers[reflect.TypeOf(big.Int{})] =
+		func(raw interface{}) (interface{}, error) {
+			in := raw.(big.Int)
+			out := new(big.Int).Set(&in)
+			return *out, nil
+		}
+}
+
 // RollupBlock stores all the data related to the Rollup SC from an ethereum block
 type RollupBlock struct {
-	State  eth.RollupState
-	Vars   eth.RollupVariables
-	Events eth.RollupEvents
-}
+	State     eth.RollupState
+	Vars      eth.RollupVariables
+	Events    eth.RollupEvents
+	Constants *eth.RollupConstants
+	Eth       *EthereumBlock
+}
+
+var (
+	errBidClosed   = fmt.Errorf("Bid has already been closed")
+	errBidNotOpen  = fmt.Errorf("Bid has not been opened yet")
+	errBidBelowMin = fmt.Errorf("Bid below minimum")
+	errCoordNotReg = fmt.Errorf("Coordinator not registered")
+)
 
 // AuctionBlock stores all the data related to the Auction SC from an ethereum block
 type AuctionBlock struct {
-	State  eth.AuctionState
-	Vars   eth.AuctionVariables
-	Events eth.AuctionEvents
+	State     eth.AuctionState
+	Vars      eth.AuctionVariables
+	Events    eth.AuctionEvents
+	Constants *eth.AuctionConstants
+	Eth       *EthereumBlock
+}
+
+func (a *AuctionBlock) getSlotNumber(blockNumber int64) int64 {
+	if a.Eth.BlockNum >= a.Constants.GenesisBlockNum {
+		return (blockNumber - a.Constants.GenesisBlockNum) / int64(a.Constants.BlocksPerSlot)
+	}
+	return 0
+}
+
+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) getMinBidBySlot(slot int64) (*big.Int, error) {
+	if slot < a.getCurrentSlotNumber()+int64(a.Vars.ClosedAuctionSlots) {
+		return nil, errBidClosed
+	}
+
+	epoch := a.getEpoch(slot)
+	var prevBid *big.Int
+	slotState, ok := a.State.Slots[slot]
+	// 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]
+	} else {
+		prevBid = slotState.BidAmount
+	}
+	outBid := new(big.Int).Set(prevBid)
+	outBid.Mul(outBid, big.NewInt(int64(a.Vars.Outbidding)))
+	outBid.Div(outBid, big.NewInt(100)) //nolint:gomnd
+	outBid.Add(prevBid, outBid)
+	return outBid, nil
 }
 
 // EthereumBlock stores all the generic data related to the an ethereum block
@@ -48,17 +107,25 @@ type Block struct {
 	Eth     *EthereumBlock
 }
 
-// type ethState struct {
-// 	blockNum int64
-// }
-
-// type state struct {
-// 	rollupState  eth.RollupState
-// 	rollupVars   eth.RollupVariables
-// 	auctionState eth.AuctionState
-// 	auctionVars  eth.AuctionVariables
-// 	eth          ethState
-// }
+// Next prepares the successive block.
+func (b *Block) Next() *Block {
+	blockNextRaw, err := copystructure.Copy(b)
+	if err != nil {
+		panic(err)
+	}
+	blockNext := blockNextRaw.(*Block)
+	blockNext.Rollup.Events = eth.NewRollupEvents()
+	blockNext.Auction.Events = eth.NewAuctionEvents()
+	blockNext.Eth = &EthereumBlock{
+		BlockNum:   b.Eth.BlockNum + 1,
+		ParentHash: b.Eth.Hash,
+	}
+	blockNext.Rollup.Constants = b.Rollup.Constants
+	blockNext.Auction.Constants = b.Auction.Constants
+	blockNext.Rollup.Eth = blockNext.Eth
+	blockNext.Auction.Eth = blockNext.Eth
+	return blockNext
+}
 
 // ClientSetup is used to initialize the constants of the Smart Contracts and
 // other details of the test Client
@@ -70,6 +137,45 @@ type ClientSetup struct {
 	VerifyProof      bool
 }
 
+// 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{}
+	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),
+	}
+	auctionConstants := &eth.AuctionConstants{
+		BlocksPerSlot: 40,
+	}
+	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)},
+		ClosedAuctionSlots: 2,
+		OpenAuctionSlots:   100,
+		AllocationRatio:    [3]uint8{},
+		Outbidding:         10,
+		SlotDeadline:       20,
+	}
+	return &ClientSetup{
+		RollupConstants:  rollupConstants,
+		RollupVariables:  rollupVariables,
+		AuctionConstants: auctionConstants,
+		AuctionVariables: auctionVariables,
+	}
+}
+
 // Timer is an interface to simulate a source of time, useful to advance time
 // virtually.
 type Timer interface {
@@ -85,7 +191,9 @@ type Timer interface {
 // Client implements the eth.ClientInterface interface, allowing to manipulate the
 // values for testing, working with deterministic results.
 type Client struct {
+	rw               *sync.RWMutex
 	log              bool
+	addr             ethCommon.Address
 	rollupConstants  *eth.RollupConstants
 	auctionConstants *eth.AuctionConstants
 	blocks           map[int64]*Block
@@ -101,7 +209,7 @@ type Client struct {
 
 // NewClient returns a new test Client that implements the eth.IClient
 // interface, at the given initialBlockNumber.
-func NewClient(l bool, timer Timer, setup *ClientSetup) *Client {
+func NewClient(l bool, timer Timer, addr ethCommon.Address, setup *ClientSetup) *Client {
 	blocks := make(map[int64]*Block)
 	blockNum := int64(0)
 
@@ -124,17 +232,19 @@ func NewClient(l bool, timer Timer, setup *ClientSetup) *Client {
 				LastToForgeL1TxsNum:    1,
 				CurrentIdx:             0,
 			},
-			Vars:   *setup.RollupVariables,
-			Events: eth.NewRollupEvents(),
+			Vars:      *setup.RollupVariables,
+			Events:    eth.NewRollupEvents(),
+			Constants: setup.RollupConstants,
 		},
 		Auction: &AuctionBlock{
 			State: eth.AuctionState{
-				Slots:           make(map[int64]eth.SlotState),
+				Slots:           make(map[int64]*eth.SlotState),
 				PendingBalances: make(map[ethCommon.Address]*big.Int),
-				Coordinators:    make(map[ethCommon.Address]eth.Coordinator),
+				Coordinators:    make(map[ethCommon.Address]*eth.Coordinator),
 			},
-			Vars:   *setup.AuctionVariables,
-			Events: eth.NewAuctionEvents(),
+			Vars:      *setup.AuctionVariables,
+			Events:    eth.NewAuctionEvents(),
+			Constants: setup.AuctionConstants,
 		},
 		Eth: &EthereumBlock{
 			BlockNum:   blockNum,
@@ -143,16 +253,16 @@ func NewClient(l bool, timer Timer, setup *ClientSetup) *Client {
 			ParentHash: ethCommon.Hash{},
 		},
 	}
+	blockCurrent.Rollup.Eth = blockCurrent.Eth
+	blockCurrent.Auction.Eth = blockCurrent.Eth
 	blocks[blockNum] = &blockCurrent
-	blockNextRaw, err := copystructure.Copy(&blockCurrent)
-	if err != nil {
-		panic(err)
-	}
-	blockNext := blockNextRaw.(*Block)
+	blockNext := blockCurrent.Next()
 	blocks[blockNum+1] = blockNext
 
 	return &Client{
+		rw:                    &sync.RWMutex{},
 		log:                   l,
+		addr:                  addr,
 		rollupConstants:       setup.RollupConstants,
 		auctionConstants:      setup.AuctionConstants,
 		blocks:                blocks,
@@ -197,29 +307,26 @@ func (c *Client) nextBlock() *Block {
 	return c.blocks[c.blockNum+1]
 }
 
+func (c *Client) currentBlock() *Block {
+	return c.blocks[c.blockNum]
+}
+
 // CtlMineBlock moves one block forward
 func (c *Client) CtlMineBlock() {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	blockCurrent := c.nextBlock()
 	c.blockNum++
 	c.maxBlockNum = c.blockNum
-	blockCurrent.Eth = &EthereumBlock{
-		BlockNum:   c.blockNum,
-		Time:       c.timer.Time(),
-		Hash:       c.hasher.Next(),
-		ParentHash: blockCurrent.Eth.Hash,
-	}
+	blockCurrent.Eth.Time = c.timer.Time()
+	blockCurrent.Eth.Hash = c.hasher.Next()
 	for ethTxHash, forgeBatchArgs := range c.forgeBatchArgsPending {
 		c.forgeBatchArgs[ethTxHash] = forgeBatchArgs
 	}
 	c.forgeBatchArgsPending = make(map[ethCommon.Hash]*eth.RollupForgeBatchArgs)
 
-	blockNextRaw, err := copystructure.Copy(blockCurrent)
-	if err != nil {
-		panic(err)
-	}
-	blockNext := blockNextRaw.(*Block)
-	blockNext.Rollup.Events = eth.NewRollupEvents()
-	blockNext.Auction.Events = eth.NewAuctionEvents()
+	blockNext := blockCurrent.Next()
 	c.blocks[c.blockNum+1] = blockNext
 	c.Debugw("TestClient mined block", "blockNum", c.blockNum)
 }
@@ -227,6 +334,9 @@ func (c *Client) CtlMineBlock() {
 // CtlRollback discards the last mined block.  Use this to replace a mined
 // block to simulate reorgs.
 func (c *Client) CtlRollback() {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	if c.blockNum == 0 {
 		panic("Can't rollback at blockNum = 0")
 	}
@@ -234,13 +344,7 @@ func (c *Client) CtlRollback() {
 	delete(c.blocks, c.blockNum)   // delete current block
 	c.blockNum--
 	blockCurrent := c.blocks[c.blockNum]
-	blockNextRaw, err := copystructure.Copy(blockCurrent)
-	if err != nil {
-		panic(err)
-	}
-	blockNext := blockNextRaw.(*Block)
-	blockNext.Rollup.Events = eth.NewRollupEvents()
-	blockNext.Auction.Events = eth.NewAuctionEvents()
+	blockNext := blockCurrent.Next()
 	c.blocks[c.blockNum+1] = blockNext
 }
 
@@ -250,6 +354,9 @@ func (c *Client) CtlRollback() {
 
 // EthCurrentBlock returns the current blockNum
 func (c *Client) EthCurrentBlock() (int64, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	if c.blockNum < c.maxBlockNum {
 		panic("blockNum has decreased.  " +
 			"After a rollback you must mine to reach the same or higher blockNum")
@@ -273,6 +380,9 @@ func (c *Client) EthCurrentBlock() (int64, error) {
 // EthBlockByNumber returns the *common.Block for the given block number in a
 // deterministic way.
 func (c *Client) EthBlockByNumber(ctx context.Context, blockNum int64) (*common.Block, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	block, ok := c.blocks[blockNum]
 	if !ok {
 		return nil, fmt.Errorf("block not found")
@@ -293,6 +403,9 @@ var errTODO = fmt.Errorf("TODO: Not implemented yet")
 
 // CtlAddL1TxUser adds an L1TxUser to the L1UserTxs queue of the Rollup
 func (c *Client) CtlAddL1TxUser(l1Tx *common.L1Tx) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	nextBlock := c.nextBlock()
 	r := nextBlock.Rollup
 	queue := r.State.MapL1TxQueue[r.State.LastToForgeL1TxsNum]
@@ -311,8 +424,13 @@ func (c *Client) CtlAddL1TxUser(l1Tx *common.L1Tx) {
 	r.Events.L1UserTx = append(r.Events.L1UserTx, eth.RollupEventL1UserTx{L1Tx: *l1Tx})
 }
 
+type transactionData struct {
+	Name  string
+	Value interface{}
+}
+
 func (c *Client) newTransaction(name string, value interface{}) *types.Transaction {
-	data, err := json.Marshal(value)
+	data, err := json.Marshal(transactionData{name, value})
 	if err != nil {
 		panic(err)
 	}
@@ -322,11 +440,17 @@ 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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // CtlAddBatch adds forged batch to the Rollup, without checking any ZKProof
 func (c *Client) CtlAddBatch(args *eth.RollupForgeBatchArgs) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	nextBlock := c.nextBlock()
 	r := nextBlock.Rollup
 	r.State.StateRoot = args.NewStRoot
@@ -352,6 +476,9 @@ func (c *Client) CtlAddBatch(args *eth.RollupForgeBatchArgs) {
 
 // RollupAddToken is the interface to call the smart contract function
 func (c *Client) RollupAddToken(tokenAddress ethCommon.Address) (*types.Transaction, error) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	nextBlock := c.nextBlock()
 	r := nextBlock.Rollup
 	if _, ok := r.State.TokenMap[tokenAddress]; ok {
@@ -372,76 +499,121 @@ 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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // RollupGetTokenAddress is the interface to call the smart contract function
 func (c *Client) RollupGetTokenAddress(tokenID int64) (*ethCommon.Address, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return nil, errTODO
 }
 
 // RollupGetL1TxFromQueue is the interface to call the smart contract function
 func (c *Client) RollupGetL1TxFromQueue(queue int64, position int64) ([]byte, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return nil, errTODO
 }
 
 // RollupGetQueue is the interface to call the smart contract function
 func (c *Client) RollupGetQueue(queue int64) ([]byte, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return nil, errTODO
 }
 
 // RollupUpdateForgeL1Timeout is the interface to call the smart contract function
 func (c *Client) RollupUpdateForgeL1Timeout(newForgeL1Timeout int64) (*types.Transaction, error) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // RollupUpdateFeeL1UserTx is the interface to call the smart contract function
 func (c *Client) RollupUpdateFeeL1UserTx(newFeeL1UserTx *big.Int) (*types.Transaction, error) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // RollupUpdateFeeAddToken is the interface to call the smart contract function
 func (c *Client) RollupUpdateFeeAddToken(newFeeAddToken *big.Int) (*types.Transaction, error) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // RollupUpdateTokensHEZ is the interface to call the smart contract function
 func (c *Client) RollupUpdateTokensHEZ(newTokenHEZ ethCommon.Address) (*types.Transaction, error) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
@@ -452,11 +624,17 @@ func (c *Client) RollupUpdateTokensHEZ(newTokenHEZ ethCommon.Address) (*types.Tr
 
 // RollupConstants returns the Constants of the Rollup Smart Contract
 func (c *Client) RollupConstants() (*eth.RollupConstants, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return nil, errTODO
 }
 
 // RollupEventsByBlock returns the events in a block that happened in the Rollup Smart Contract
 func (c *Client) RollupEventsByBlock(blockNum int64) (*eth.RollupEvents, *ethCommon.Hash, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	block, ok := c.blocks[blockNum]
 	if !ok {
 		return nil, nil, fmt.Errorf("Block %v doesn't exist", blockNum)
@@ -466,6 +644,9 @@ func (c *Client) RollupEventsByBlock(blockNum int64) (*eth.RollupEvents, *ethCom
 
 // RollupForgeBatchArgs returns the arguments used in a ForgeBatch call in the Rollup Smart Contract in the given transaction
 func (c *Client) RollupForgeBatchArgs(ethTxHash ethCommon.Hash) (*eth.RollupForgeBatchArgs, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	forgeBatchArgs, ok := c.forgeBatchArgs[ethTxHash]
 	if !ok {
 		return nil, fmt.Errorf("transaction not found")
@@ -479,104 +660,194 @@ 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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // AuctionGetSlotDeadline is the interface to call the smart contract function
 func (c *Client) AuctionGetSlotDeadline() (uint8, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return 0, errTODO
 }
 
 // AuctionSetOpenAuctionSlots is the interface to call the smart contract function
 func (c *Client) AuctionSetOpenAuctionSlots(newOpenAuctionSlots uint16) (*types.Transaction, error) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // AuctionGetOpenAuctionSlots is the interface to call the smart contract function
-func (c *Client) AuctionGetOpenAuctionSlots() (uint16, error) { return 0, errTODO }
+func (c *Client) AuctionGetOpenAuctionSlots() (uint16, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
+	return 0, errTODO
+}
 
 // AuctionSetClosedAuctionSlots is the interface to call the smart contract function
 func (c *Client) AuctionSetClosedAuctionSlots(newClosedAuctionSlots uint16) (*types.Transaction, error) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // AuctionGetClosedAuctionSlots is the interface to call the smart contract function
 func (c *Client) AuctionGetClosedAuctionSlots() (uint16, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return 0, errTODO
 }
 
 // AuctionSetOutbidding is the interface to call the smart contract function
 func (c *Client) AuctionSetOutbidding(newOutbidding uint8) (*types.Transaction, error) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // AuctionGetOutbidding is the interface to call the smart contract function
 func (c *Client) AuctionGetOutbidding() (uint8, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return 0, errTODO
 }
 
 // AuctionSetAllocationRatio is the interface to call the smart contract function
 func (c *Client) AuctionSetAllocationRatio(newAllocationRatio [3]uint8) (*types.Transaction, error) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // AuctionGetAllocationRatio is the interface to call the smart contract function
 func (c *Client) AuctionGetAllocationRatio() ([3]uint8, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return [3]uint8{}, errTODO
 }
 
 // AuctionSetDonationAddress is the interface to call the smart contract function
 func (c *Client) AuctionSetDonationAddress(newDonationAddress ethCommon.Address) (*types.Transaction, error) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // AuctionGetDonationAddress is the interface to call the smart contract function
 func (c *Client) AuctionGetDonationAddress() (*ethCommon.Address, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return nil, errTODO
 }
 
 // AuctionSetBootCoordinator is the interface to call the smart contract function
 func (c *Client) AuctionSetBootCoordinator(newBootCoordinator ethCommon.Address) (*types.Transaction, error) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // AuctionGetBootCoordinator is the interface to call the smart contract function
 func (c *Client) AuctionGetBootCoordinator() (*ethCommon.Address, error) {
-	return nil, errTODO
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
+	currentBlock := c.currentBlock()
+	a := currentBlock.Auction
+
+	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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	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) {
-	return nil, errTODO
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
+	nextBlock := c.nextBlock()
+	a := nextBlock.Auction
+
+	if _, ok := a.State.Coordinators[forgerAddress]; ok {
+		return nil, fmt.Errorf("Already registered")
+	}
+	a.State.Coordinators[forgerAddress] = &eth.Coordinator{
+		WithdrawalAddress: c.addr,
+		URL:               URL,
+	}
+
+	a.Events.NewCoordinator = append(a.Events.NewCoordinator,
+		eth.AuctionEventNewCoordinator{
+			ForgerAddress:     forgerAddress,
+			WithdrawalAddress: c.addr,
+			URL:               URL,
+		})
+
+	type data struct {
+		ForgerAddress ethCommon.Address
+		URL           string
+	}
+	return c.newTransaction("registercoordinator", data{forgerAddress, URL}), nil
 }
 
 // AuctionIsRegisteredCoordinator is the interface to call the smart contract function
 func (c *Client) AuctionIsRegisteredCoordinator(forgerAddress ethCommon.Address) (bool, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // AuctionGetCurrentSlotNumber is the interface to call the smart contract function
 func (c *Client) AuctionGetCurrentSlotNumber() (int64, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return 0, errTODO
 }
 
 // AuctionGetMinBidBySlot is the interface to call the smart contract function
 func (c *Client) AuctionGetMinBidBySlot(slot int64) (*big.Int, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return nil, errTODO
 }
 
 // AuctionGetMinBidEpoch is the interface to call the smart contract function
 func (c *Client) AuctionGetMinBidEpoch(epoch uint8) (*big.Int, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return nil, errTODO
 }
 
@@ -587,16 +858,64 @@ 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) {
-	return nil, errTODO
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
+	nextBlock := c.nextBlock()
+	a := nextBlock.Auction
+
+	if slot < a.getCurrentSlotNumber()+int64(a.Vars.ClosedAuctionSlots) {
+		return nil, errBidClosed
+	}
+
+	if slot >= a.getCurrentSlotNumber()+int64(a.Vars.ClosedAuctionSlots)+int64(a.Vars.OpenAuctionSlots) {
+		return nil, errBidNotOpen
+	}
+
+	minBid, err := a.getMinBidBySlot(slot)
+	if err != nil {
+		return nil, err
+	}
+	if bidAmount.Cmp(minBid) == -1 {
+		return nil, errBidBelowMin
+	}
+
+	if _, ok := a.State.Coordinators[forger]; !ok {
+		return nil, errCoordNotReg
+	}
+
+	slotState, ok := a.State.Slots[slot]
+	if !ok {
+		slotState = &eth.SlotState{}
+		a.State.Slots[slot] = slotState
+	}
+	slotState.Forger = forger
+	slotState.BidAmount = bidAmount
+
+	a.Events.NewBid = append(a.Events.NewBid,
+		eth.AuctionEventNewBid{Slot: slot, BidAmount: bidAmount, CoordinatorForger: forger})
+
+	type data struct {
+		Slot      int64
+		BidAmount *big.Int
+		Forger    ethCommon.Address
+	}
+	return c.newTransaction("bid", data{slot, bidAmount, forger}), nil
 }
 
 // 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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // AuctionCanForge is the interface to call the smart contract function
 func (c *Client) AuctionCanForge(forger ethCommon.Address) (bool, error) {
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
 	return false, errTODO
 }
 
@@ -607,15 +926,28 @@ 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) {
+	c.rw.Lock()
+	defer c.rw.Unlock()
+
 	return nil, errTODO
 }
 
 // AuctionConstants returns the Constants of the Auction Smart Contract
 func (c *Client) AuctionConstants() (*eth.AuctionConstants, error) {
-	return nil, errTODO
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
+	return c.auctionConstants, nil
 }
 
 // AuctionEventsByBlock returns the events in a block that happened in the Auction Smart Contract
 func (c *Client) AuctionEventsByBlock(blockNum int64) (*eth.AuctionEvents, *ethCommon.Hash, error) {
-	return nil, nil, errTODO
+	c.rw.RLock()
+	defer c.rw.RUnlock()
+
+	block, ok := c.blocks[blockNum]
+	if !ok {
+		return nil, nil, fmt.Errorf("Block %v doesn't exist", blockNum)
+	}
+	return &block.Auction.Events, &block.Eth.Hash, nil
 }

test/ethclient_test.go

@@ -17,42 +17,6 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-var clientSetup *ClientSetup
-
-func init() {
-	rollupConstants := &eth.RollupConstants{}
-	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),
-	}
-	auctionConstants := &eth.AuctionConstants{}
-	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)},
-		ClosedAuctionSlots: 0,
-		OpenAuctionSlots:   0,
-		AllocationRatio:    [3]uint8{},
-		Outbidding:         0,
-		SlotDeadline:       0,
-	}
-	clientSetup = &ClientSetup{
-		RollupConstants:  rollupConstants,
-		RollupVariables:  rollupVariables,
-		AuctionConstants: auctionConstants,
-		AuctionVariables: auctionVariables,
-	}
-}
-
 type timer struct {
 	time int64
 }
@@ -66,16 +30,16 @@ func (t *timer) Time() int64 {
 func TestClientInterface(t *testing.T) {
 	var c eth.ClientInterface
 	var timer timer
-	client := NewClient(true, &timer, clientSetup)
+	clientSetup := NewClientSetupExample()
+	client := NewClient(true, &timer, ethCommon.Address{}, clientSetup)
 	c = client
 	require.NotNil(t, c)
 }
 
-func TestEthClient(t *testing.T) {
-	token1Addr := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
-
+func TestClientEth(t *testing.T) {
 	var timer timer
-	c := NewClient(true, &timer, clientSetup)
+	clientSetup := NewClientSetupExample()
+	c := NewClient(true, &timer, ethCommon.Address{}, clientSetup)
 	blockNum, err := c.EthCurrentBlock()
 	require.Nil(t, err)
 	assert.Equal(t, int64(0), blockNum)
@@ -98,6 +62,62 @@ func TestEthClient(t *testing.T) {
 	require.Nil(t, err)
 	assert.Equal(t, int64(2), block.EthBlockNum)
 	assert.Equal(t, time.Unix(2, 0), block.Timestamp)
+}
+
+func TestClientAuction(t *testing.T) {
+	addrWithdraw := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
+	addrForge := ethCommon.HexToAddress("0xCfAA413eEb796f328620a3630Ae39124cabcEa92")
+	addrForge2 := ethCommon.HexToAddress("0x1fCb4ac309428feCc61B1C8cA5823C15A5e1a800")
+
+	var timer timer
+	clientSetup := NewClientSetupExample()
+	clientSetup.AuctionVariables.ClosedAuctionSlots = 2
+	clientSetup.AuctionVariables.OpenAuctionSlots = 100
+	c := NewClient(true, &timer, addrWithdraw, clientSetup)
+
+	_, err := c.AuctionBid(0, big.NewInt(1), addrForge)
+	assert.Equal(t, errBidClosed, err)
+
+	_, err = c.AuctionBid(102, big.NewInt(1), addrForge)
+	assert.Equal(t, errBidNotOpen, err)
+
+	_, err = c.AuctionBid(101, big.NewInt(16), addrForge)
+	assert.Equal(t, errCoordNotReg, err)
+
+	_, err = c.AuctionRegisterCoordinator(addrForge, "https://foo.bar")
+	assert.Nil(t, err)
+
+	_, err = c.AuctionBid(3, big.NewInt(1), addrForge)
+	assert.Equal(t, errBidBelowMin, err)
+
+	_, err = c.AuctionBid(3, big.NewInt(16), addrForge)
+	assert.Nil(t, err)
+
+	_, err = c.AuctionRegisterCoordinator(addrForge2, "https://foo2.bar")
+	assert.Nil(t, err)
+
+	_, err = c.AuctionBid(3, big.NewInt(16), addrForge2)
+	assert.Equal(t, errBidBelowMin, err)
+
+	_, err = c.AuctionBid(3, big.NewInt(17), addrForge2)
+	assert.Nil(t, err)
+
+	c.CtlMineBlock()
+
+	blockNum, err := c.EthCurrentBlock()
+	require.Nil(t, err)
+
+	auctionEvents, _, err := c.AuctionEventsByBlock(blockNum)
+	require.Nil(t, err)
+	assert.Equal(t, 2, len(auctionEvents.NewBid))
+}
+
+func TestClientRollup(t *testing.T) {
+	token1Addr := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
+
+	var timer timer
+	clientSetup := NewClientSetupExample()
+	c := NewClient(true, &timer, ethCommon.Address{}, clientSetup)
 
 	// Add a token
 
@@ -123,7 +143,7 @@ func TestEthClient(t *testing.T) {
 	}
 	c.CtlMineBlock()
 
-	blockNum, err = c.EthCurrentBlock()
+	blockNum, err := c.EthCurrentBlock()
 	require.Nil(t, err)
 	rollupEvents, _, err := c.RollupEventsByBlock(blockNum)
 	require.Nil(t, err)