public void Buyer_does_not_react_to_a_purchase_event_related_to_another_buyer()
{
var stockItem = new Mock <IStockItem>(MockBehavior.Strict);
var sut = new Buyer("ItemId", 10, 1, stockItem.Object);
sut.CurrentPrice(100, 5);
sut.ItemPurchased(1, PurchaseSource.FromOtherBuyer);
}
public void Buyer_attempts_to_buy_maximum_amount_available()
{
var stockItem = new Mock <IStockItem>();
var sut = new Buyer("ItemId", 50, 10, stockItem.Object);
sut.CurrentPrice(10, 5);
stockItem.Verify(x => x.Buy(10, 5));
}
public void Buyer_does_not_buy_when_price_event_with_too_high_price_arrives()
{
var mock = new Mock <IBuyerListener>();
var sut = new Buyer("ItemId", 10, 1, null);
sut.AddBuyerListener(mock.Object);
sut.CurrentPrice(20, 5);
mock.Verify(x => x.BuyerStateChanged(new BuyerSnapshot("ItemId", 20, 5, 0, BuyerState.Monitoring)));
}
public void Buyer_closes_when_it_buys_enough_items()
{
var listener = new Mock <IBuyerListener>();
var sut = new Buyer("ItemId", 10, 5, null);
sut.AddBuyerListener(listener.Object);
sut.CurrentPrice(50, 10);
sut.ItemPurchased(5, PurchaseSource.FromBuyer);
listener.Verify(x => x.BuyerStateChanged(new BuyerSnapshot("ItemId", 50, 5, 5, BuyerState.Closed)));
}
public void Buyer_updates_items_bought_so_far_when_purchase_event_with_the_same_user_name_arrives()
{
var listener = new Mock <IBuyerListener>();
var sut = new Buyer("ItemId", 10, 10, null);
sut.AddBuyerListener(listener.Object);
sut.CurrentPrice(50, 10);
sut.ItemPurchased(1, PurchaseSource.FromBuyer);
listener.Verify(x => x.BuyerStateChanged(new BuyerSnapshot("ItemId", 50, 9, 1, BuyerState.Monitoring)));
}
public void Buyer_buys_when_price_event_with_appropriate_price_arrives()
{
var listener = new Mock <IBuyerListener>();
var stockItem = new Mock <IStockItem>();
var sut = new Buyer("ItemId", 50, 1, stockItem.Object);
sut.AddBuyerListener(listener.Object);
sut.CurrentPrice(10, 5);
listener.Verify(x => x.BuyerStateChanged(new BuyerSnapshot("ItemId", 10, 5, 0, BuyerState.Buying)));
stockItem.Verify(x => x.Buy(10, 1));
}
public void Closed_buyer_does_not_react_to_further_messages_()
{
var listener = new Mock <IBuyerListener>(MockBehavior.Strict);
listener.Setup(x => x.BuyerStateChanged(new BuyerSnapshot("ItemId", 0, 0, 0, BuyerState.Closed)));
var stockItem = new Mock <IStockItem>(MockBehavior.Strict);
var sut = new Buyer("ItemId", 10, 10, stockItem.Object);
sut.AddBuyerListener(listener.Object);
sut.ItemClosed();
sut.CurrentPrice(10, 10);
}