public void ProcessBuyLimit_PickBidOrder_PartialFilled()
{
// Arrange
var price = 100;
var partialFilledAmount = 0.4;
var fullAmount = 1;
var askOrder = new Order(OrderSide.Sell, price, partialFilledAmount);
var orderbook = new OrderBook();
orderbook.AddAskOrder(askOrder);
var bidOrder = new Order(OrderSide.Buy, price, fullAmount);
// Act
var processor = new Processor();
var trades = processor.ProcessBuyLimit(bidOrder, orderbook);
// Assert
Assert.AreEqual(trades.Count, 1);
Assert.AreEqual(trades[0].Price, bidOrder.Price);
Assert.AreEqual(trades[0].Amount, partialFilledAmount);
Assert.AreEqual(trades[0].TakerOrderId, bidOrder.Id);
Assert.AreEqual(trades[0].MakerOrderId, askOrder.Id);
Assert.AreEqual(orderbook.BidOrders.Count, 1);
Assert.AreEqual(orderbook.BidOrders[0].Id, bidOrder.Id);
Assert.AreEqual(orderbook.BidOrders[0].Price, bidOrder.Price);
Assert.AreEqual(orderbook.BidOrders[0].Amount, fullAmount - partialFilledAmount);
Assert.AreEqual(orderbook.BidOrders[0].Side, bidOrder.Side);
}