Add linter checks to GHA & Fix code to pass lints

Add linter checks to GHA & Fix code to pass lints.
The linters added are:
- whitespace: Tool for detection of leading and trailing whitespace
- gosec: Inspects source code for security problems
- gci: Gci control golang package import order and make it always deterministic
- misspell: Finds commonly misspelled English words in comments
- gomnd: An analyzer to detect magic numbers

The file utils/utils.go is excluded from the checks of gomnd, as uses magic numbers through the code

.github/workflows/lint.yml

@@ -12,5 +12,5 @@ jobs:
         uses: actions/checkout@v2
       - name: Lint
         run: |
-          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.24.0
-          $(go env GOPATH)/bin/golangci-lint run --timeout=5m
+          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.30.0
+          $(go env GOPATH)/bin/golangci-lint run --timeout=5m -E whitespace -E gosec -E gci -E misspell -E gomnd --max-same-issues 0

README.md

@@ -12,3 +12,10 @@ POSTGRES_PASS=yourpasswordhere; sudo docker run --rm --name hermez-db-test -p 54
 ```
 POSTGRES_PASS=yourpasswordhere go test ./...
 ```
+
+## Lint
+- Install [golangci-lint](https://golangci-lint.run)
+- Once installed, to check the lints
+```
+golangci-lint run --timeout=5m -E whitespace -E gosec -E gci -E misspell -E gomnd --max-same-issues 0
+```

common/account.go

@@ -12,7 +12,13 @@ import (
 	cryptoUtils "github.com/iden3/go-iden3-crypto/utils"
 )
 
-const NLEAFELEMS = 4
+const (
+	NLEAFELEMS = 4
+	// maxNonceValue is the maximum value that the Account.Nonce can have (40 bits: maxNonceValue=2**40-1)
+	maxNonceValue = 0xffffffffff
+	// maxBalanceBytes is the maximum bytes that can use the Account.Balance *big.Int
+	maxBalanceBytes = 24
+)
 
 // Account is a struct that gives information of the holdings of an address and a specific token. Is the data structure that generates the Value stored in the leaf of the MerkleTree
 type Account struct {
@@ -37,10 +43,10 @@ func (a *Account) String() string {
 func (a *Account) Bytes() ([32 * NLEAFELEMS]byte, error) {
 	var b [32 * NLEAFELEMS]byte
 
-	if a.Nonce > 0xffffffffff {
+	if a.Nonce > maxNonceValue {
 		return b, fmt.Errorf("%s Nonce", ErrNumOverflow)
 	}
-	if len(a.Balance.Bytes()) > 24 {
+	if len(a.Balance.Bytes()) > maxBalanceBytes {
 		return b, fmt.Errorf("%s Balance", ErrNumOverflow)
 	}
 

common/batch.go

@@ -8,6 +8,8 @@ import (
 	ethCommon "github.com/ethereum/go-ethereum/common"
 )
 
+const batchNumBytesLen = 4
+
 // Batch is a struct that represents Hermez network batch
 type Batch struct {
 	BatchNum      BatchNum             `meddler:"batch_num"`
@@ -33,7 +35,7 @@ func (bn BatchNum) Bytes() []byte {
 
 // BatchNumFromBytes returns BatchNum from a []byte
 func BatchNumFromBytes(b []byte) (BatchNum, error) {
-	if len(b) != 4 {
+	if len(b) != batchNumBytesLen {
 		return 0, fmt.Errorf("can not parse BatchNumFromBytes, bytes len %d, expected 4", len(b))
 	}
 	batchNum := binary.LittleEndian.Uint32(b[:4])

common/fee.go

@@ -1,6 +1,6 @@
 package common
 
-// Fee is a type that represents the percentage of tokens that will be payed in a transaction
+// Fee is a type that represents the percentage of tokens that will be paid in a transaction
 // to incentivaise the materialization of it
 type Fee float64
 
@@ -15,5 +15,7 @@ type RecommendedFee struct {
 // FeeSelector is used to select a percentage from the FeePlan.
 type FeeSelector uint8
 
+const MAXFEEPLAN = 256
+
 // FeePlan represents the fee model, a position in the array indicates the percentage of tokens paid in concept of fee for a transaction
-var FeePlan = [256]float64{}
+var FeePlan = [MAXFEEPLAN]float64{}

common/pooll2tx.go

@@ -17,7 +17,7 @@ type Nonce uint64
 
 // Bytes returns a byte array of length 5 representing the Nonce
 func (n Nonce) Bytes() ([5]byte, error) {
-	if n >= 1099511627776 { // 2**40bits
+	if n > maxNonceValue {
 		return [5]byte{}, ErrNonceOverflow
 	}
 	var nonceBytes [8]byte

common/pooll2tx_test.go

@@ -68,7 +68,6 @@ func TestTxCompressedData(t *testing.T) {
 	// test vector value generated from javascript implementation
 	assert.Equal(t, "6571340879233176732837827812956721483162819083004853354503", txCompressedData.String())
 	assert.Equal(t, "10c000000000b0000000a0009000000000008000000000007", hex.EncodeToString(txCompressedData.Bytes())[1:])
-
 }
 
 func TestHashToSign(t *testing.T) {

common/smartcontractparams.go

@@ -16,6 +16,6 @@ type SmartContractParameters struct {
 	ContractAddr        ethCommon.Address // Ethereum address of the rollup smart contract
 	NLevels             uint16            // Heigth of the SMT. This will determine the maximum number of accounts that can coexist in the Hermez network by 2^nLevels
 	MaxTxs              uint16            // Max amount of txs that can be added in a batch, either L1 or L2
-	FeeL1Tx             *big.Int          // amount of eth (in wei) that has to be payed to do a L1 tx
-	FeeDeposit          *big.Int          // amount of eth (in wei) that has to be payed to do a deposit
+	FeeL1Tx             *big.Int          // amount of eth (in wei) that has to be paid to do a L1 tx
+	FeeDeposit          *big.Int          // amount of eth (in wei) that has to be paid to do a deposit
 }

common/syncstate.go

@@ -4,7 +4,7 @@ import (
 	"time"
 )
 
-// SyncronizerState describes the syncronization progress of the smart contracts
+// SyncronizerState describes the synchronization progress of the smart contracts
 type SyncronizerState struct {
 	LastUpdate                time.Time // last time this information was updated
 	CurrentBatchNum           BatchNum  // Last batch that was forged on the blockchain

common/tx.go

@@ -6,6 +6,12 @@ import (
 	"math/big"
 )
 
+const (
+	idxBytesLen = 4
+	// maxIdxValue is the maximum value that Idx can have (32 bits: maxIdxValue=2**32-1)
+	maxIdxValue = 0xffffffff
+)
+
 // Idx represents the account Index in the MerkleTree
 type Idx uint32
 
@@ -23,7 +29,7 @@ func (idx Idx) BigInt() *big.Int {
 
 // IdxFromBytes returns Idx from a byte array
 func IdxFromBytes(b []byte) (Idx, error) {
-	if len(b) != 4 {
+	if len(b) != idxBytesLen {
 		return 0, fmt.Errorf("can not parse Idx, bytes len %d, expected 4", len(b))
 	}
 	idx := binary.LittleEndian.Uint32(b[:4])
@@ -32,7 +38,7 @@ func IdxFromBytes(b []byte) (Idx, error) {
 
 // IdxFromBigInt converts a *big.Int to Idx type
 func IdxFromBigInt(b *big.Int) (Idx, error) {
-	if b.Int64() > 0xffffffff { // 2**32-1
+	if b.Int64() > maxIdxValue {
 		return 0, ErrNumOverflow
 	}
 	return Idx(uint32(b.Int64())), nil

common/tx_test.go

@@ -19,5 +19,4 @@ func TestIdx(t *testing.T) {
 	assert.NotNil(t, err)
 	assert.Equal(t, ErrNumOverflow, err)
 	assert.Equal(t, Idx(0), i)
-
 }

coordinator/coordinator.go

@@ -294,17 +294,14 @@ func (c *Coordinator) isForgeSequence() bool {
 }
 
 func (c *Coordinator) purgeRemoveByTimeout() error {
-
 	return nil
 }
 
 func (c *Coordinator) purgeInvalidDueToL2TxsSelection(l2Txs []*common.PoolL2Tx) error {
-
 	return nil
 }
 
 func (c *Coordinator) shouldL1L2Batch() bool {
-
 	return false
 }
 

coordinator/proofpool.go

@@ -20,6 +20,5 @@ type ServerProofPool struct {
 }
 
 func (p *ServerProofPool) GetNextAvailable() (*ServerProofInfo, error) {
-
 	return nil, nil
 }

db/historydb/historydb.go

@@ -7,7 +7,9 @@ import (
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/db"
 	"github.com/jmoiron/sqlx"
-	_ "github.com/lib/pq" // driver for postgres DB
+
+	//nolint:errcheck // driver for postgres DB
+	_ "github.com/lib/pq"
 	migrate "github.com/rubenv/sql-migrate"
 	"github.com/russross/meddler"
 )

db/historydb/historydb_test.go

@@ -49,8 +49,8 @@ func TestBlocks(t *testing.T) {
 	// Generate fake blocks
 	blocks := genBlocks(fromBlock, toBlock)
 	// Insert blocks into DB
-	for _, block := range blocks {
-		err := historyDB.AddBlock(&block)
+	for i := 0; i < len(blocks); i++ {
+		err := historyDB.AddBlock(&blocks[i])
 		assert.NoError(t, err)
 	}
 	// Get all blocks from DB

db/l2db/l2db.go

@@ -10,7 +10,9 @@ import (
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/db"
 	"github.com/jmoiron/sqlx"
-	_ "github.com/lib/pq" // driver for postgres DB
+
+	//nolint:errcheck // driver for postgres DB
+	_ "github.com/lib/pq"
 	migrate "github.com/rubenv/sql-migrate"
 	"github.com/russross/meddler"
 )
@@ -26,7 +28,7 @@ type L2DB struct {
 
 // NewL2DB creates a L2DB.
 // More info on how to set dbDialect and dbArgs here: http://gorm.io/docs/connecting_to_the_database.html
-// safetyPeriod is the ammount of blockchain blocks that must be waited before deleting anything (to avoid reorg problems).
+// safetyPeriod is the amount of blockchain blocks that must be waited before deleting anything (to avoid reorg problems).
 // maxTxs indicates the desired maximum amount of txs stored on the L2DB.
 // TTL indicates the maximum amount of time that a tx can be in the L2DB
 // (to prevent tx that won't ever be forged to stay there, will be used if maxTxs is exceeded).
@@ -153,7 +155,7 @@ func (l2db *L2DB) UpdateTxs(txs []*common.PoolL2Tx) error {
 	return nil
 }
 
-// Reorg updates the state of txs that were updated in a batch that has been discarted due to a blockchian reorg.
+// Reorg updates the state of txs that were updated in a batch that has been discarted due to a blockchain reorg.
 // The state of the affected txs can change form Forged -> Pending or from Invalid -> Pending
 func (l2db *L2DB) Reorg(lastValidBatch common.BatchNum) error {
 	// TODO: impl

db/l2db/l2db_test.go

@@ -122,7 +122,7 @@ func TestStartForging(t *testing.T) {
 
 func genTxs(n int) []*common.PoolL2Tx {
 	// WARNING: This tx doesn't follow the protocol (signature, txID, ...)
-	// it's just to test geting/seting from/to the DB.
+	// it's just to test getting/setting from/to the DB.
 	// Type and RqTxCompressedData: not initialized because it's not stored
 	// on the DB and add noise when checking results.
 	txs := make([]*common.PoolL2Tx, 0, n)

db/statedb/statedb_test.go

@@ -32,7 +32,6 @@ func newAccount(t *testing.T, i int) *common.Account {
 		PublicKey: pk,
 		EthAddr:   address,
 	}
-
 }
 
 func TestStateDBWithoutMT(t *testing.T) {

db/statedb/txprocessors.go

@@ -213,7 +213,7 @@ func (s *StateDB) applyDeposit(tx *common.L1Tx, transfer bool) error {
 		if err != nil {
 			return err
 		}
-		// substract amount to the sender
+		// subtract amount to the sender
 		accSender.Balance = new(big.Int).Sub(accSender.Balance, tx.Amount)
 		// add amount to the receiver
 		accReceiver.Balance = new(big.Int).Add(accReceiver.Balance, tx.Amount)
@@ -247,7 +247,7 @@ func (s *StateDB) applyTransfer(tx *common.Tx) error {
 	// increment nonce
 	accSender.Nonce++
 
-	// substract amount to the sender
+	// subtract amount to the sender
 	accSender.Balance = new(big.Int).Sub(accSender.Balance, tx.Amount)
 	// add amount to the receiver
 	accReceiver.Balance = new(big.Int).Add(accReceiver.Balance, tx.Amount)
@@ -267,7 +267,7 @@ func (s *StateDB) applyTransfer(tx *common.Tx) error {
 }
 
 func (s *StateDB) applyExit(exitTree *merkletree.MerkleTree, tx *common.Tx) (*common.Account, error) {
-	// 0. substract tx.Amount from current Account in StateMT
+	// 0. subtract tx.Amount from current Account in StateMT
 	// add the tx.Amount into the Account (tx.FromIdx) in the ExitMT
 	acc, err := s.GetAccount(tx.FromIdx)
 	if err != nil {

eth/client.go

@@ -27,20 +27,45 @@ var (
 const (
 	errStrDeploy      = "deployment of %s failed: %w"
 	errStrWaitReceipt = "wait receipt of %s deploy failed: %w"
+
+	// default values
+	defaultCallGasLimit        = 300000
+	defaultDeployGasLimit      = 1000000
+	defaultGasPriceDiv         = 100
+	defaultReceiptTimeout      = 60
+	defaultIntervalReceiptLoop = 200
 )
 
+type Config struct {
+	CallGasLimit        uint64
+	DeployGasLimit      uint64
+	GasPriceDiv         uint64
+	ReceiptTimeout      time.Duration // in seconds
+	IntervalReceiptLoop time.Duration // in milliseconds
+}
+
 // Client is an ethereum client to call Smart Contract methods.
 type Client struct {
 	client         *ethclient.Client
 	account        *accounts.Account
 	ks             *ethKeystore.KeyStore
 	ReceiptTimeout time.Duration
+	config         *Config
 }
 
 // NewClient creates a Client instance.  The account is not mandatory (it can
 // be nil).  If the account is nil, CallAuth will fail with ErrAccountNil.
-func NewClient(client *ethclient.Client, account *accounts.Account, ks *ethKeystore.KeyStore) *Client {
-	return &Client{client: client, account: account, ks: ks, ReceiptTimeout: 60 * time.Second}
+func NewClient(client *ethclient.Client, account *accounts.Account, ks *ethKeystore.KeyStore, config *Config) *Client {
+	if config == nil {
+		config = &Config{
+			CallGasLimit:        defaultCallGasLimit,
+			DeployGasLimit:      defaultDeployGasLimit,
+			GasPriceDiv:         defaultGasPriceDiv,
+			ReceiptTimeout:      defaultReceiptTimeout,
+			IntervalReceiptLoop: defaultIntervalReceiptLoop,
+		}
+	}
+	return &Client{client: client, account: account, ks: ks, ReceiptTimeout: config.ReceiptTimeout * time.Second, config: config}
 }
 
 // BalanceAt retieves information about the default account
@@ -67,7 +92,7 @@ func (c *Client) CallAuth(gasLimit uint64,
 		return nil, err
 	}
 	inc := new(big.Int).Set(gasPrice)
-	inc.Div(inc, new(big.Int).SetUint64(100))
+	inc.Div(inc, new(big.Int).SetUint64(c.config.GasPriceDiv))
 	gasPrice.Add(gasPrice, inc)
 	log.Debug("Transaction metadata", "gasPrice", gasPrice)
 
@@ -77,7 +102,7 @@ func (c *Client) CallAuth(gasLimit uint64,
 	}
 	auth.Value = big.NewInt(0) // in wei
 	if gasLimit == 0 {
-		auth.GasLimit = uint64(300000) // in units
+		auth.GasLimit = c.config.CallGasLimit // in units
 	} else {
 		auth.GasLimit = gasLimit // in units
 	}
@@ -99,14 +124,13 @@ type ContractData struct {
 // Deploy a smart contract.  `name` is used to log deployment information.  fn
 // is a wrapper to the deploy function generated by abigen.  In case of error,
 // the returned `ContractData` may have some parameters filled depending on the
-// kind of error that ocurred.
-// successfull.
+// kind of error that occurred.
 func (c *Client) Deploy(name string,
 	fn func(c *ethclient.Client, auth *bind.TransactOpts) (ethCommon.Address, *types.Transaction, interface{}, error)) (ContractData, error) {
 	var contractData ContractData
 	log.Info("Deploying", "contract", name)
 	tx, err := c.CallAuth(
-		1000000,
+		c.config.DeployGasLimit,
 		func(client *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
 			addr, tx, _, err := fn(client, auth)
 			if err != nil {
@@ -162,7 +186,7 @@ func (c *Client) waitReceipt(tx *types.Transaction, ctx context.Context, timeout
 		if receipt != nil || time.Since(start) >= timeout {
 			break
 		}
-		time.Sleep(200 * time.Millisecond)
+		time.Sleep(c.config.IntervalReceiptLoop * time.Millisecond)
 	}
 
 	if receipt != nil && receipt.Status == types.ReceiptStatusFailed {
@@ -174,7 +198,7 @@ func (c *Client) waitReceipt(tx *types.Transaction, ctx context.Context, timeout
 		log.Debug("Pendingtransaction / Wait receipt timeout", "tx", txid.Hex(), "lasterr", err)
 		return receipt, ErrReceiptNotReceived
 	}
-	log.Debug("Successfull transaction", "tx", txid.Hex())
+	log.Debug("Successful transaction", "tx", txid.Hex())
 
 	return receipt, err
 }

priceupdater/priceupdater.go

@@ -10,6 +10,11 @@ import (
 	"github.com/dghubble/sling"
 )
 
+const (
+	defaultMaxIdleConns    = 10
+	defaultIdleConnTimeout = 10
+)
+
 var (
 	// ErrSymbolDoesNotExistInDatabase is used when trying to get a token that is not in the DB
 	ErrSymbolDoesNotExistInDatabase = errors.New("symbol does not exist in database")
@@ -39,20 +44,17 @@ type PriceUpdater struct {
 
 // NewPriceUpdater is the constructor for the updater
 func NewPriceUpdater(config ConfigPriceUpdater) PriceUpdater {
-
 	return PriceUpdater{
 		db:     make(map[string]TokenInfo),
 		config: config,
 	}
-
 }
 
 // UpdatePrices is triggered by the Coordinator, and internally will update the token prices in the db
 func (p *PriceUpdater) UpdatePrices() error {
-
 	tr := &http.Transport{
-		MaxIdleConns:       10,
-		IdleConnTimeout:    10 * time.Second,
+		MaxIdleConns:       defaultMaxIdleConns,
+		IdleConnTimeout:    defaultIdleConnTimeout * time.Second,
 		DisableCompression: true,
 	}
 	httpClient := &http.Client{Transport: tr}
@@ -61,12 +63,12 @@ func (p *PriceUpdater) UpdatePrices() error {
 	state := [10]float64{}
 
 	for _, tokenSymbol := range p.config.TokensList {
-
 		resp, err := client.New().Get("ticker/t" + tokenSymbol + "USD").ReceiveSuccess(&state)
 		if err != nil {
 			return err
 		}
-		if resp.StatusCode != 200 {
+		// if resp.StatusCode != 200 {
+		if resp.StatusCode != http.StatusOK {
 			return fmt.Errorf("Unexpected response status code: %v", resp.StatusCode)
 		}
 
@@ -77,7 +79,6 @@ func (p *PriceUpdater) UpdatePrices() error {
 		}
 
 		p.UpdateTokenInfo(tinfo)
-
 	}
 
 	return nil
@@ -85,17 +86,14 @@ func (p *PriceUpdater) UpdatePrices() error {
 
 // UpdateConfig allows to update the price-updater configuration
 func (p *PriceUpdater) UpdateConfig(config ConfigPriceUpdater) {
-
 	p.mu.Lock()
 	defer p.mu.Unlock()
 
 	p.config = config
-
 }
 
 // Get one token information
 func (p *PriceUpdater) Get(tokenSymbol string) (TokenInfo, error) {
-
 	var info TokenInfo
 
 	// Check if symbol exists in database
@@ -107,12 +105,10 @@ func (p *PriceUpdater) Get(tokenSymbol string) (TokenInfo, error) {
 	}
 
 	return info, ErrSymbolDoesNotExistInDatabase
-
 }
 
 // GetPrices gets all the prices contained in the db
 func (p *PriceUpdater) GetPrices() map[string]TokenInfo {
-
 	var info = make(map[string]TokenInfo)
 
 	p.mu.RLock()
@@ -127,10 +123,8 @@ func (p *PriceUpdater) GetPrices() map[string]TokenInfo {
 
 // UpdateTokenInfo updates one token info
 func (p *PriceUpdater) UpdateTokenInfo(tokenInfo TokenInfo) {
-
 	p.mu.Lock()
 	defer p.mu.Unlock()
 
 	p.db[tokenInfo.Symbol] = tokenInfo
-
 }

priceupdater/priceupdater_test.go

@@ -7,7 +7,6 @@ import (
 )
 
 func TestCon(t *testing.T) {
-
 	config := ConfigPriceUpdater{
 
 		RecommendedFee:              1,
@@ -36,5 +35,4 @@ func TestCon(t *testing.T) {
 	prices := pud.GetPrices()
 	assert.Equal(t, prices["ETH"], info)
 	assert.Equal(t, prices["NEC"], info2)
-
 }

test/lang.go

@@ -313,7 +313,7 @@ func (p *Parser) parseLine() (*Instruction, error) {
 			c.Literal += line
 			return c, err
 		}
-		if fee > 255 {
+		if fee > common.MAXFEEPLAN-1 {
 			line, _ := p.s.r.ReadString('\n')
 			c.Literal += line
 			return c, fmt.Errorf("Fee %d can not be bigger than 255", fee)

test/txs.go

@@ -143,7 +143,6 @@ func GenerateTestTxs(t *testing.T, instructions Instructions) ([][]*common.L1Tx,
 		default:
 			continue
 		}
-
 	}
 	l1Txs = append(l1Txs, batchL1Txs)
 	coordinatorL1Txs = append(coordinatorL1Txs, batchCoordinatorL1Txs)

txselector/txselector_test.go

@@ -7,7 +7,6 @@ import (
 
 	"github.com/hermeznetwork/hermez-node/db/l2db"
 	"github.com/hermeznetwork/hermez-node/db/statedb"
-
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )

utils/utils.go

@@ -1,3 +1,4 @@
+//nolint:gomnd
 package utils
 
 import (
@@ -33,9 +34,7 @@ func (fl16 *Float16) BigInt() *big.Int {
 	res := m.Mul(m, exp)
 
 	if e5 != 0 && e.Cmp(big.NewInt(0)) != 0 {
-
 		res.Add(res, exp.Div(exp, big.NewInt(2)))
-
 	}
 	return res
 }
@@ -56,11 +55,9 @@ func floorFix2Float(_f *big.Int) Float16 {
 	s := big.NewInt(0).Rsh(m, 10)
 
 	for s.Cmp(zero) != 0 {
-
 		m.Div(m, ten)
 		s.Rsh(m, 10)
 		e++
-
 	}
 
 	return Float16(m.Int64() | e<<11)
@@ -98,13 +95,11 @@ func NewFloat16(f *big.Int) (Float16, error) {
 	d3 := big.NewInt(0).Abs(fi3.Sub(fi3, f))
 
 	if d.Cmp(d3) == 1 {
-
 		res = fl3
 	}
 
 	// Do rounding check
 	if res.BigInt().Cmp(f) == 0 {
-
 		return res, nil
 	}
 	return res, ErrRoundingLoss

utils/utils_test.go

@@ -8,7 +8,6 @@ import (
 )
 
 func TestConversions(t *testing.T) {
-
 	testVector := map[Float16]string{
 		0x307B: "123000000",
 		0x1DC6: "454500",
@@ -24,7 +23,6 @@ func TestConversions(t *testing.T) {
 	}
 
 	for test := range testVector {
-
 		fix := test.BigInt()
 
 		assert.Equal(t, fix.String(), testVector[test])
@@ -37,13 +35,10 @@ func TestConversions(t *testing.T) {
 
 		fx2 := fl.BigInt()
 		assert.Equal(t, fx2.String(), testVector[test])
-
 	}
-
 }
 
 func TestFloorFix2Float(t *testing.T) {
-
 	testVector := map[string]Float16{
 		"87999990000000000": 0x776f,
 		"87950000000000001": 0x776f,
@@ -52,16 +47,13 @@ func TestFloorFix2Float(t *testing.T) {
 	}
 
 	for test := range testVector {
-
 		bi := big.NewInt(0)
 		bi.SetString(test, 10)
 
 		testFloat := NewFloat16Floor(bi)
 
 		assert.Equal(t, testFloat, testVector[test])
-
 	}
-
 }
 
 func TestConversionLosses(t *testing.T) {
@@ -94,7 +86,6 @@ func TestConversionLosses(t *testing.T) {
 	assert.Equal(t, ErrRoundingLoss, err)
 	c = b.BigInt()
 	assert.NotEqual(t, c, a)
-
 }
 
 func BenchmarkFloat16(b *testing.B) {