diff --git a/pkg/backtest/exchange.go b/pkg/backtest/exchange.go
index 5675e85d6..58b0bbaa0 100644
--- a/pkg/backtest/exchange.go
+++ b/pkg/backtest/exchange.go
@@ -56,7 +56,7 @@ type Exchange struct {
 	currentTime    time.Time
 
 	account *types.Account
-	config  *bbgo.BackTest
+	config  *bbgo.Backtest
 
 	MarketDataStream types.StandardStreamEmitter
 
@@ -74,7 +74,7 @@ type Exchange struct {
 	Src *ExchangeDataSource
 }
 
-func NewExchange(sourceName types.ExchangeName, sourceExchange types.Exchange, srv *service.BacktestService, config *bbgo.BackTest) (*Exchange, error) {
+func NewExchange(sourceName types.ExchangeName, sourceExchange types.Exchange, srv *service.BacktestService, config *bbgo.Backtest) (*Exchange, error) {
 	ex := sourceExchange
 
 	markets, err := cache.LoadExchangeMarketsWithCache(context.Background(), ex)
diff --git a/pkg/backtest/fee.go b/pkg/backtest/fee.go
index 9cb413743..34ed82485 100644
--- a/pkg/backtest/fee.go
+++ b/pkg/backtest/fee.go
@@ -39,16 +39,16 @@ func feeModeFunctionQuote(order *types.Order, market *types.Market, feeRate fixe
 	return fee, feeCurrency
 }
 
-func getFeeModeFunction(feeMode bbgo.BackTestFeeMode) FeeModeFunction {
+func getFeeModeFunction(feeMode bbgo.BacktestFeeMode) FeeModeFunction {
 	switch feeMode {
 
-	case bbgo.BackTestFeeModeNative:
+	case bbgo.BacktestFeeModeNative:
 		return feeModeFunctionNative
 
-	case bbgo.BackTestFeeModeQuote:
+	case bbgo.BacktestFeeModeQuote:
 		return feeModeFunctionQuote
 
-	case bbgo.BackTestFeeModeToken:
+	case bbgo.BacktestFeeModeToken:
 		return feeModeFunctionToken
 
 	default:
diff --git a/pkg/bbgo/backtestfeemode_enumer.go b/pkg/bbgo/backtestfeemode_enumer.go
index 3fdd92d6d..546043668 100644
--- a/pkg/bbgo/backtestfeemode_enumer.go
+++ b/pkg/bbgo/backtestfeemode_enumer.go
@@ -1,4 +1,4 @@
-// Code generated by "enumer -type=BackTestFeeMode -transform=snake -trimprefix BackTestFeeMode -yaml -json"; DO NOT EDIT.
+// Code generated by "enumer -type=BacktestFeeMode -transform=snake -trimprefix BacktestFeeMode -yaml -json"; DO NOT EDIT.
 
 package bbgo
 
@@ -8,73 +8,73 @@ import (
 	"strings"
 )
 
-const _BackTestFeeModeName = "quotenativetoken"
+const _BacktestFeeModeName = "quotenativetoken"
 
-var _BackTestFeeModeIndex = [...]uint8{0, 5, 11, 16}
+var _BacktestFeeModeIndex = [...]uint8{0, 5, 11, 16}
 
-const _BackTestFeeModeLowerName = "quotenativetoken"
+const _BacktestFeeModeLowerName = "quotenativetoken"
 
-func (i BackTestFeeMode) String() string {
-	if i < 0 || i >= BackTestFeeMode(len(_BackTestFeeModeIndex)-1) {
-		return fmt.Sprintf("BackTestFeeMode(%d)", i)
+func (i BacktestFeeMode) String() string {
+	if i < 0 || i >= BacktestFeeMode(len(_BacktestFeeModeIndex)-1) {
+		return fmt.Sprintf("BacktestFeeMode(%d)", i)
 	}
-	return _BackTestFeeModeName[_BackTestFeeModeIndex[i]:_BackTestFeeModeIndex[i+1]]
+	return _BacktestFeeModeName[_BacktestFeeModeIndex[i]:_BacktestFeeModeIndex[i+1]]
 }
 
 // An "invalid array index" compiler error signifies that the constant values have changed.
 // Re-run the stringer command to generate them again.
-func _BackTestFeeModeNoOp() {
+func _BacktestFeeModeNoOp() {
 	var x [1]struct{}
-	_ = x[BackTestFeeModeQuote-(0)]
-	_ = x[BackTestFeeModeNative-(1)]
-	_ = x[BackTestFeeModeToken-(2)]
+	_ = x[BacktestFeeModeQuote-(0)]
+	_ = x[BacktestFeeModeNative-(1)]
+	_ = x[BacktestFeeModeToken-(2)]
 }
 
-var _BackTestFeeModeValues = []BackTestFeeMode{BackTestFeeModeQuote, BackTestFeeModeNative, BackTestFeeModeToken}
+var _BacktestFeeModeValues = []BacktestFeeMode{BacktestFeeModeQuote, BacktestFeeModeNative, BacktestFeeModeToken}
 
-var _BackTestFeeModeNameToValueMap = map[string]BackTestFeeMode{
-	_BackTestFeeModeName[0:5]:        BackTestFeeModeQuote,
-	_BackTestFeeModeLowerName[0:5]:   BackTestFeeModeQuote,
-	_BackTestFeeModeName[5:11]:       BackTestFeeModeNative,
-	_BackTestFeeModeLowerName[5:11]:  BackTestFeeModeNative,
-	_BackTestFeeModeName[11:16]:      BackTestFeeModeToken,
-	_BackTestFeeModeLowerName[11:16]: BackTestFeeModeToken,
+var _BacktestFeeModeNameToValueMap = map[string]BacktestFeeMode{
+	_BacktestFeeModeName[0:5]:        BacktestFeeModeQuote,
+	_BacktestFeeModeLowerName[0:5]:   BacktestFeeModeQuote,
+	_BacktestFeeModeName[5:11]:       BacktestFeeModeNative,
+	_BacktestFeeModeLowerName[5:11]:  BacktestFeeModeNative,
+	_BacktestFeeModeName[11:16]:      BacktestFeeModeToken,
+	_BacktestFeeModeLowerName[11:16]: BacktestFeeModeToken,
 }
 
-var _BackTestFeeModeNames = []string{
-	_BackTestFeeModeName[0:5],
-	_BackTestFeeModeName[5:11],
-	_BackTestFeeModeName[11:16],
+var _BacktestFeeModeNames = []string{
+	_BacktestFeeModeName[0:5],
+	_BacktestFeeModeName[5:11],
+	_BacktestFeeModeName[11:16],
 }
 
-// BackTestFeeModeString retrieves an enum value from the enum constants string name.
+// BacktestFeeModeString retrieves an enum value from the enum constants string name.
 // Throws an error if the param is not part of the enum.
-func BackTestFeeModeString(s string) (BackTestFeeMode, error) {
-	if val, ok := _BackTestFeeModeNameToValueMap[s]; ok {
+func BacktestFeeModeString(s string) (BacktestFeeMode, error) {
+	if val, ok := _BacktestFeeModeNameToValueMap[s]; ok {
 		return val, nil
 	}
 
-	if val, ok := _BackTestFeeModeNameToValueMap[strings.ToLower(s)]; ok {
+	if val, ok := _BacktestFeeModeNameToValueMap[strings.ToLower(s)]; ok {
 		return val, nil
 	}
-	return 0, fmt.Errorf("%s does not belong to BackTestFeeMode values", s)
+	return 0, fmt.Errorf("%s does not belong to BacktestFeeMode values", s)
 }
 
-// BackTestFeeModeValues returns all values of the enum
-func BackTestFeeModeValues() []BackTestFeeMode {
-	return _BackTestFeeModeValues
+// BacktestFeeModeValues returns all values of the enum
+func BacktestFeeModeValues() []BacktestFeeMode {
+	return _BacktestFeeModeValues
 }
 
-// BackTestFeeModeStrings returns a slice of all String values of the enum
-func BackTestFeeModeStrings() []string {
-	strs := make([]string, len(_BackTestFeeModeNames))
-	copy(strs, _BackTestFeeModeNames)
+// BacktestFeeModeStrings returns a slice of all String values of the enum
+func BacktestFeeModeStrings() []string {
+	strs := make([]string, len(_BacktestFeeModeNames))
+	copy(strs, _BacktestFeeModeNames)
 	return strs
 }
 
-// IsABackTestFeeMode returns "true" if the value is listed in the enum definition. "false" otherwise
-func (i BackTestFeeMode) IsABackTestFeeMode() bool {
-	for _, v := range _BackTestFeeModeValues {
+// IsABacktestFeeMode returns "true" if the value is listed in the enum definition. "false" otherwise
+func (i BacktestFeeMode) IsABacktestFeeMode() bool {
+	for _, v := range _BacktestFeeModeValues {
 		if i == v {
 			return true
 		}
@@ -82,36 +82,36 @@ func (i BackTestFeeMode) IsABackTestFeeMode() bool {
 	return false
 }
 
-// MarshalJSON implements the json.Marshaler interface for BackTestFeeMode
-func (i BackTestFeeMode) MarshalJSON() ([]byte, error) {
+// MarshalJSON implements the json.Marshaler interface for BacktestFeeMode
+func (i BacktestFeeMode) MarshalJSON() ([]byte, error) {
 	return json.Marshal(i.String())
 }
 
-// UnmarshalJSON implements the json.Unmarshaler interface for BackTestFeeMode
-func (i *BackTestFeeMode) UnmarshalJSON(data []byte) error {
+// UnmarshalJSON implements the json.Unmarshaler interface for BacktestFeeMode
+func (i *BacktestFeeMode) UnmarshalJSON(data []byte) error {
 	var s string
 	if err := json.Unmarshal(data, &s); err != nil {
-		return fmt.Errorf("BackTestFeeMode should be a string, got %s", data)
+		return fmt.Errorf("BacktestFeeMode should be a string, got %s", data)
 	}
 
 	var err error
-	*i, err = BackTestFeeModeString(s)
+	*i, err = BacktestFeeModeString(s)
 	return err
 }
 
-// MarshalYAML implements a YAML Marshaler for BackTestFeeMode
-func (i BackTestFeeMode) MarshalYAML() (interface{}, error) {
+// MarshalYAML implements a YAML Marshaler for BacktestFeeMode
+func (i BacktestFeeMode) MarshalYAML() (interface{}, error) {
 	return i.String(), nil
 }
 
-// UnmarshalYAML implements a YAML Unmarshaler for BackTestFeeMode
-func (i *BackTestFeeMode) UnmarshalYAML(unmarshal func(interface{}) error) error {
+// UnmarshalYAML implements a YAML Unmarshaler for BacktestFeeMode
+func (i *BacktestFeeMode) UnmarshalYAML(unmarshal func(interface{}) error) error {
 	var s string
 	if err := unmarshal(&s); err != nil {
 		return err
 	}
 
 	var err error
-	*i, err = BackTestFeeModeString(s)
+	*i, err = BacktestFeeModeString(s)
 	return err
 }
diff --git a/pkg/bbgo/config.go b/pkg/bbgo/config.go
index 523b2018b..d5164962e 100644
--- a/pkg/bbgo/config.go
+++ b/pkg/bbgo/config.go
@@ -101,26 +101,26 @@ type Session struct {
 	IsolatedMarginSymbol string `json:"isolatedMarginSymbol,omitempty" yaml:"isolatedMarginSymbol,omitempty"`
 }
 
-//go:generate go run github.com/dmarkham/enumer -type=BackTestFeeMode -transform=snake -trimprefix BackTestFeeMode -yaml -json
-type BackTestFeeMode int
+//go:generate go run github.com/dmarkham/enumer -type=BacktestFeeMode -transform=snake -trimprefix BacktestFeeMode -yaml -json
+type BacktestFeeMode int
 
 const (
 	// BackTestFeeModeQuoteFee is designed for clean position but which also counts the fee in the quote balance.
 	// buy order = quote currency fee
 	// sell order = quote currency fee
-	BackTestFeeModeQuote BackTestFeeMode = iota // quote
+	BacktestFeeModeQuote BacktestFeeMode = iota // quote
 
 	// BackTestFeeModeNativeFee is the default crypto exchange fee mode.
 	// buy order = base currency fee
 	// sell order = quote currency fee
-	BackTestFeeModeNative // BackTestFeeMode = "native"
+	BacktestFeeModeNative // BackTestFeeMode = "native"
 
 	// BackTestFeeModeFeeToken is the mode which calculates fee from the outside of the balances.
 	// the fee will not be included in the balances nor the profit.
-	BackTestFeeModeToken // BackTestFeeMode = "token"
+	BacktestFeeModeToken // BackTestFeeMode = "token"
 )
 
-type BackTest struct {
+type Backtest struct {
 	StartTime types.LooseFormatTime  `json:"startTime,omitempty" yaml:"startTime,omitempty"`
 	EndTime   *types.LooseFormatTime `json:"endTime,omitempty" yaml:"endTime,omitempty"`
 
@@ -131,14 +131,14 @@ type BackTest struct {
 	// Account is deprecated, use Accounts instead
 	Account map[string]BacktestAccount `json:"account" yaml:"account"`
 
-	FeeMode BackTestFeeMode `json:"feeMode" yaml:"feeMode"`
+	FeeMode BacktestFeeMode `json:"feeMode" yaml:"feeMode"`
 
 	Accounts map[string]BacktestAccount `json:"accounts" yaml:"accounts"`
 	Symbols  []string                   `json:"symbols" yaml:"symbols"`
 	Sessions []string                   `json:"sessions" yaml:"sessions"`
 }
 
-func (b *BackTest) GetAccount(n string) BacktestAccount {
+func (b *Backtest) GetAccount(n string) BacktestAccount {
 	accountConfig, ok := b.Accounts[n]
 	if ok {
 		return accountConfig
@@ -309,7 +309,7 @@ type Config struct {
 	// Deprecated: use BuildConfig instead
 	Imports []string `json:"imports,omitempty" yaml:"imports,omitempty"`
 
-	Backtest *BackTest `json:"backtest,omitempty" yaml:"backtest,omitempty"`
+	Backtest *Backtest `json:"backtest,omitempty" yaml:"backtest,omitempty"`
 
 	Sync *SyncConfig `json:"sync,omitempty" yaml:"sync,omitempty"`
 
diff --git a/pkg/bbgo/config_test.go b/pkg/bbgo/config_test.go
index a28ba8c4d..74d13ca66 100644
--- a/pkg/bbgo/config_test.go
+++ b/pkg/bbgo/config_test.go
@@ -255,10 +255,10 @@ func TestSyncSymbol(t *testing.T) {
 }
 
 func TestBackTestFeeMode(t *testing.T) {
-	var mode BackTestFeeMode
+	var mode BacktestFeeMode
 	var err = yaml.Unmarshal([]byte(`quote`), &mode)
 	assert.NoError(t, err)
-	assert.Equal(t, BackTestFeeModeQuote, mode)
+	assert.Equal(t, BacktestFeeModeQuote, mode)
 }
 
 func Test_categorizeSyncSymbol(t *testing.T) {
diff --git a/pkg/cmd/backtest.go b/pkg/cmd/backtest.go
index 56a6b43ef..e3866f4c2 100644
--- a/pkg/cmd/backtest.go
+++ b/pkg/cmd/backtest.go
@@ -141,7 +141,7 @@ var BacktestCmd = &cobra.Command{
 		startTime = userConfig.Backtest.StartTime.Time().Local()
 
 		// set default start time to the past 6 months
-		// userConfig.BackTest.StartTime = now.AddDate(0, -6, 0).Format("2006-01-02")
+		// userConfig.Backtest.StartTime = now.AddDate(0, -6, 0).Format("2006-01-02")
 		if userConfig.Backtest.EndTime != nil {
 			endTime = userConfig.Backtest.EndTime.Time().Local()
 		} else {