Add ticker test helper

Signed-off-by: c9s <yoanlin93@gmail.com>

pkg/testing/testhelper/ticker.go

@@ -0,0 +1,42 @@
+package testhelper
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/c9s/bbgo/pkg/fixedpoint"
+	"github.com/c9s/bbgo/pkg/types"
+)
+
+var tickers = map[string]types.Ticker{
+	"BTCUSDT": {
+		Time:   time.Now(),
+		Volume: fixedpoint.Zero,
+		Last:   fixedpoint.NewFromFloat(19000.0),
+		Open:   fixedpoint.NewFromFloat(19500.0),
+		High:   fixedpoint.NewFromFloat(19900.0),
+		Low:    fixedpoint.NewFromFloat(18800.0),
+		Buy:    fixedpoint.NewFromFloat(19500.0),
+		Sell:   fixedpoint.NewFromFloat(18900.0),
+	},
+
+	"ETHUSDT": {
+		Time:   time.Now(),
+		Volume: fixedpoint.Zero,
+		Open:   fixedpoint.NewFromFloat(2510.0),
+		High:   fixedpoint.NewFromFloat(2530.0),
+		Low:    fixedpoint.NewFromFloat(2505.0),
+		Last:   fixedpoint.NewFromFloat(2520.0),
+		Buy:    fixedpoint.NewFromFloat(2519.0),
+		Sell:   fixedpoint.NewFromFloat(2521.0),
+	},
+}
+
+func Ticker(symbol string) types.Ticker {
+	ticker, ok := tickers[symbol]
+	if !ok {
+		panic(fmt.Errorf("%s test ticker not found, valid tickers: %+v", symbol, []string{"BTCUSDT", "ETHUSDT"}))
+	}
+
+	return ticker
+}