public async void CanPlaceAndCancelAndOrder()
{
var buyOrder = NewOrder.Buy(TickerSymbol.XBTUSD, CurrencyCode.XBT, 1, 210);
var newOrder = await _client.NewOrderAsync(_walletId, buyOrder);
var order = await _client.GetOrderAsync(_walletId, newOrder.Id);
await _client.CancelOrderAsync(_walletId, order.Id);
order = await _client.GetOrderAsync(_walletId, newOrder.Id);
Assert.AreEqual(OrderStatus.cancelled, order.Status);
}