tri: load test data from static file

pkg/strategy/tri/strategy_test.go

@@ -3,24 +3,20 @@
 package tri
 
 import (
-	"context"
 	"fmt"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/c9s/bbgo/pkg/cache"
-	"github.com/c9s/bbgo/pkg/exchange/binance"
 	"github.com/c9s/bbgo/pkg/fixedpoint"
 	"github.com/c9s/bbgo/pkg/types"
+	"github.com/c9s/bbgo/pkg/util"
 )
 
 var markets = make(types.MarketMap)
 
 func init() {
-	var err error
+	if err := util.ReadJsonFile("../../../testdata/binance-markets.json", &markets); err != nil {
-	markets, err = cache.LoadExchangeMarketsWithCache(context.Background(), &binance.Exchange{})
-	if err != nil {
 		panic(err)
 	}
 }

pkg/util/json.go

@@ -2,7 +2,9 @@ package util
 
 import (
 	"encoding/json"
+	"io"
 	"io/ioutil"
+	"os"
 )
 
 func WriteJsonFile(p string, obj interface{}) error {
@@ -13,3 +15,24 @@ func WriteJsonFile(p string, obj interface{}) error {
 
 	return ioutil.WriteFile(p, out, 0644)
 }
+
+func ReadJsonFile(file string, obj interface{}) error {
+	f, err := os.Open(file)
+	if err != nil {
+		return err
+	}
+
+	defer f.Close()
+
+	byteResult, err := io.ReadAll(f)
+	if err != nil {
+		return err
+	}
+
+	err = json.Unmarshal([]byte(byteResult), obj)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

testdata/binance-markets.json

@@ -62,5 +62,21 @@
     "minPrice": 0.01,
     "maxPrice": 100000,
     "tickSize": 0.01
+  },
+  "ETHBTC": {
+  "symbol": "ETHBTC",
+  "localSymbol": "ETHBTC",
+  "pricePrecision": 8,
+  "volumePrecision": 8,
+  "quoteCurrency": "BTC",
+  "baseCurrency": "ETH",
+  "minNotional": 0.0001,
+  "minAmount": 0.0001,
+  "minQuantity": 0.0001,
+  "maxQuantity": 100000,
+  "stepSize": 0.0001,
+  "minPrice": 1e-05,
+  "maxPrice": 922327,
+  "tickSize": 1e-05
   }
 }