public void GetItemsBidOnByUserWhenUserHasBidReturnsAllItems()
{
BidRepository repo = new BidRepository();
repo.Items.Add(new Item("item1", "name1"));
repo.Items.Add(new Item("item2", "name2"));
repo.Bids.Add(new Bid("bid1", "item1", "user1", 2));
repo.Bids.Add(new Bid("bid2", "item1", "user2", 3));
repo.Bids.Add(new Bid("bid3", "item1", "user3", 4));
repo.Bids.Add(new Bid("bid4", "item2", "user3", 3));
BidTracker tracker = new BidTracker(repo);
IEnumerable <Item> items = tracker.GetItemsBidOn("user3");
Assert.NotEmpty(items);
Assert.Equal(2, items.Count());
Item item1 = items.SingleOrDefault(i => i.Id == "item1");
Assert.NotNull(item1);
Assert.Equal("name1", item1.Name);
Item item2 = items.SingleOrDefault(i => i.Id == "item2");
Assert.NotNull(item2);
Assert.Equal("name2", item2.Name);
}
public void GetBidsForItemReturnBidsSuccessfully()
{
BidRepository repo = new BidRepository();
repo.Items.Add(new Item("item1", "name1"));
repo.Bids.Add(new Bid("bid1", "item1", "user1", 2));
repo.Bids.Add(new Bid("bid2", "item1", "user2", 3));
BidTracker tracker = new BidTracker(repo);
List <Bid> bids = tracker.GetBids("item1").ToList();
Assert.Equal(2, bids.Count());
Bid bid1 = bids.SingleOrDefault(b => b.Id == "bid1");
Assert.NotNull(bid1);
Assert.Equal(2, bid1.Amount);
Assert.Equal("item1", bid1.ItemId);
Assert.Equal("user1", bid1.UserId);
Bid bid2 = bids.SingleOrDefault(b => b.Id == "bid2");
Assert.NotNull(bid2);
Assert.Equal(3, bid2.Amount);
Assert.Equal("item1", bid2.ItemId);
Assert.Equal("user2", bid2.UserId);
}
public void BidAddedToNonExistingItemThrowsException()
{
BidRepository repo = new BidRepository();
BidTracker tracker = new BidTracker(repo);
InvalidBidException exception = Assert.Throws <InvalidBidException>(() => tracker.AddBid("item1", 1, "user1"));
Assert.Equal("An item with id 'item1' does not exist.", exception.Message);
}
public void BidAddedWithInvalidAmountThrowsException(decimal bidAmount)
{
BidRepository repo = new BidRepository();
BidTracker tracker = new BidTracker(repo);
var ex = Assert.Throws <ArgumentException>(() => tracker.AddBid("item1", bidAmount, "user1"));
Assert.Contains("The bid amount must be greater than 0.", ex.Message);
}
public void BidAddedWithoutUserIdThrowsException(string userId)
{
BidRepository repo = new BidRepository();
BidTracker tracker = new BidTracker(repo);
var ex = Assert.Throws <ArgumentNullException>(() => tracker.AddBid("item1", 1, userId));
Assert.Contains("A user id must be specified.", ex.Message);
}
public void GetWinningBidForItemWithoutItemIdThrowsException(string itemId)
{
BidRepository repo = new BidRepository();
BidTracker tracker = new BidTracker(repo);
var ex = Assert.Throws <ArgumentNullException>(() => tracker.GetWinningBid(itemId));
Assert.Contains("An item id must be specified.", ex.Message);
}
public void GetItemsBidOnByUserWithoutUserIdThrowsException(string userId)
{
BidRepository repo = new BidRepository();
BidTracker tracker = new BidTracker(repo);
var ex = Assert.Throws <ArgumentNullException>(() => tracker.GetItemsBidOn(userId));
Assert.Contains("A user id must be specified.", ex.Message);
}
public void GetWinningBidWhenThereAreNoBidsReturnsNull()
{
BidRepository repo = new BidRepository();
repo.Items.Add(new Item("item1", "name1"));
BidTracker tracker = new BidTracker(repo);
Bid bid = tracker.GetWinningBid("item1");
Assert.Null(bid);
}
public void BidLowerThanWinningBidThrowsException()
{
BidRepository repo = new BidRepository();
repo.Items.Add(new Item("item1", "name1"));
repo.Bids.Add(new Bid("bid1", "item1", "user1", 2));
repo.Bids.Add(new Bid("bid2", "item1", "user2", 3));
BidTracker tracker = new BidTracker(repo);
InvalidBidException exception = Assert.Throws <InvalidBidException>(() => tracker.AddBid("item1", 1, "user3"));
Assert.Equal("Bid too low. The current highest bid is 3.", exception.Message);
}
public void GetItemsBidOnByUserWhenUserHasNotBidReturnsNoItems()
{
BidRepository repo = new BidRepository();
repo.Items.Add(new Item("item1", "name1"));
repo.Bids.Add(new Bid("bid1", "item1", "user1", 2));
repo.Bids.Add(new Bid("bid2", "item1", "user2", 3));
BidTracker tracker = new BidTracker(repo);
IEnumerable <Item> items = tracker.GetItemsBidOn("user3");
Assert.Empty(items);
}
public void GetWinningBidReturnsSuccessfully()
{
BidRepository repo = new BidRepository();
repo.Items.Add(new Item("item1", "name1"));
repo.Bids.Add(new Bid("bid1", "item1", "user1", 2));
repo.Bids.Add(new Bid("bid2", "item1", "user2", 4));
repo.Bids.Add(new Bid("bid3", "item1", "user3", 3));
BidTracker tracker = new BidTracker(repo);
Bid bid = tracker.GetWinningBid("item1");
Assert.NotNull(bid);
Assert.Equal("item1", bid.ItemId);
Assert.Equal(4, bid.Amount);
Assert.Equal("user2", bid.UserId);
Assert.Equal("bid2", bid.Id);
}
public void UserCanCreateBidSuccessfully()
{
BidRepository repo = new BidRepository();
repo.Items.Add(new Item("item1", "name1"));
repo.Bids.Add(new Bid("bid1", "item1", "user1", 2));
repo.Bids.Add(new Bid("bid2", "item1", "user2", 3));
BidTracker tracker = new BidTracker(repo);
Bid bid = tracker.AddBid("item1", 5, "user3");
Assert.Equal(3, repo.Bids.Count);
// Retrieve the newly created bid and check its values.
Bid newBid = repo.Bids.Single(b => b.Id == bid.Id);
Assert.Equal(5, newBid.Amount);
Assert.Equal("item1", newBid.ItemId);
Assert.Equal("user3", newBid.UserId);
}
