public async void TickerPriceAllOnline()
{
var r = new Maybe <IDownloadData>();
var b = new Binance(r);
var res = await b.TickerPrice("");
Assert.NotEmpty(res);
}
public async void TickerPriceSingleOnline()
{
var r = new Maybe <IDownloadData>();
var b = new Binance(r);
var res = await b.TickerPrice("ETHBTC");
Assert.NotEmpty(res);
Assert.Single(res);
Assert.Equal("ETHBTC", res[0].Symbol);
}