public void Change_Ask_Price_NOT_To_The_Best_Should_NOT_Publish_Event(decimal price)
{
//arrange
PriceChanged priceChanged = null;
SetupSubscribe <PriceChanged>((pc) => priceChanged = pc);
var ask = NewAsk(units: 10, price: 99.99m);
//act
_matcher.Tell(ask);
Thread.Sleep(500);
//assert
Assert.NotNull(priceChanged);
Assert.Equal(99.99m, priceChanged.Ask);
//arrange
var ask2 = NewAsk(units: 10, price: price);
//act
_matcher.Tell(ask2);
Thread.Sleep(500);
//assert
Assert.Equal(99.99m, priceChanged.Ask);
}
public void Change_Bid_Price_To_The_Best_Should_Publish_Event()
{
//arrange
var bid = NewBid(units: 10, price: 99.98m);
PriceChanged priceChanged = null;
SetupSubscribe <PriceChanged>((pc) => priceChanged = pc);
//act
_matcher.Tell(bid);
Thread.Sleep(500);
//assert
Assert.NotNull(priceChanged);
Assert.Equal(99.98m, priceChanged.Bid);
//arrange
var bid2 = NewBid(units: 10, price: 99.99m);
//act
_matcher.Tell(bid2);
Thread.Sleep(500);
//assert
Assert.Equal(99.99m, priceChanged.Bid);
}
public void Making_Trades_Affect_Best_Prices()
{
//arrange
var bid = NewBid(units: 10, price: 99.98m);
PriceChanged priceChanged = null;
SetupSubscribe <PriceChanged>((pc) => priceChanged = pc);
//act
_matcher.Tell(bid);
Thread.Sleep(500);
//assert
Assert.NotNull(priceChanged);
Assert.Equal(99.98m, priceChanged.Bid);
//arrange
var bid2 = NewBid(units: 10, price: 99.99m);
//act
_matcher.Tell(bid2);
Thread.Sleep(500);
//assert
Assert.Equal(99.99m, priceChanged.Bid);
//arrange
var ask = NewAsk(units: 10, price: 99.99m);
//act
_matcher.Tell(ask);
Thread.Sleep(500);
//assert
Assert.Equal(99.98m, priceChanged.Bid);
Assert.Null(priceChanged.Ask);
}