public async Task <TotalHoldings> GetHoldings(string userId)
{
var transactions = _transactionQueryService.GetTransactions(userId);
if (transactions.Count > 0)
{
var latestPrice = await _stockService.LatestPrice(transactions);
var processedHoldings = _holdingsProcessor.HoldingsCombiner(transactions, latestPrice);
var holdingsValue = _holdingsProcessor.HoldingsValue(processedHoldings);
var cash = _walletQueryService.GetWallet(userId);
var holdings = new TotalHoldings()
{
Cash = cash.Cash,
Value = holdingsValue,
Holdings = processedHoldings
};
return(holdings);
}
else
{
var cash = _walletQueryService.GetWallet(userId);
var holdings = new TotalHoldings()
{
Cash = cash.Cash,
};
return(holdings);
}
}
public void CreateWallet_UserDoesNotExist_ReturnsUserId()
{
WalletEntity user = null;
_walletQueryService.GetWallet(Arg.Any <string>()).Returns(user);
_walletQueryService.Save(Arg.Any <WalletEntity>());
var result = _sut.CreateWallet("9fefa208-5c52-4435-a3ca-70d1e9cee692");
Assert.That(result, Is.EqualTo("9fefa208-5c52-4435-a3ca-70d1e9cee692"));
}
public void Buy_CashIsGreaterThanTotalPrice_ReturnsWallet()
{
var wallet = new WalletEntity()
{
Cash = 100.00M
};
_walletQueryService.GetWallet(Arg.Any <string>()).Returns(wallet);
var result = _sut.Buy("9fefa208-5c52-4435-a3ca-70d1e9cee692", "V", 10.00M, 1);
Assert.That(result.Cash, Is.EqualTo(100.00M));
}
public WalletEntity Buy(string userId, string stock, decimal price, int quantity)
{
var isPurchase = true;
decimal totalPrice = price * quantity;
var wallet = _walletQueryService.GetWallet(userId);
if (wallet.Cash < totalPrice)
{
throw new InsufficientAvailableFundsException("There are insufficient funds to complete this transaction.");
}
_walletQueryService.Update(wallet.WalletId, totalPrice, isPurchase);
_transactionQueryService.AddTransaction(userId, stock, price, quantity);
return(wallet);
}
public string CreateWallet(string userId)
{
var wallet = new WalletEntity()
{
UserId = userId,
Cash = 100000.00M
};
var user = _walletQueryService.GetWallet(userId);
if (user == null)
{
_walletQueryService.Save(wallet);
return(userId);
}
else
{
throw new UserAlreadyExistsException($"Error in creating wallet");
}
}
public async Task GetHoldings_TransactionCountIsGreaterThanZero_ReturnsHoldings()
{
var transactions = new List <TransactionEntity>();
transactions.Add(new TransactionEntity()
{
Price = 1.00M, Quantity = 1, Stock = "v"
});
transactions.Add(new TransactionEntity()
{
Price = 5.00M, Quantity = 1, Stock = "tsla"
});
transactions.Add(new TransactionEntity()
{
Price = 10.00M, Quantity = 1, Stock = "goog"
});
var latestPrice = new Dictionary <string, LatestPriceModel>();
latestPrice.Add("v", new LatestPriceModel()
{
Quote = new QuoteModel()
{
LatestPrice = 10.00M
}
});
latestPrice.Add("tsla", new LatestPriceModel()
{
Quote = new QuoteModel()
{
LatestPrice = 50.00M
}
});
latestPrice.Add("goog", new LatestPriceModel()
{
Quote = new QuoteModel()
{
LatestPrice = 100.00M
}
});
var processedHoldings = new List <Holding>();
processedHoldings.Add(new Holding()
{
Stock = "v", LatestPrice = 10.00M, Quantity = 1
});
processedHoldings.Add(new Holding()
{
Stock = "tsla", LatestPrice = 50.00M, Quantity = 1
});
processedHoldings.Add(new Holding()
{
Stock = "goog", LatestPrice = 100.00M, Quantity = 1
});
var holdingsValue = 160.00M;
var cash = new WalletEntity()
{
Cash = 100.00M
};
_transactionQueryService.GetTransactions(Arg.Any <string>()).Returns(transactions);
_stockService.LatestPrice(Arg.Any <List <TransactionEntity> >()).Returns(latestPrice);
_holdingsProcessor.HoldingsCombiner(Arg.Any <List <TransactionEntity> >(),
Arg.Any <Dictionary <string, LatestPriceModel> >()).Returns(processedHoldings);
_holdingsProcessor.HoldingsValue(Arg.Any <List <Holding> >()).Returns(holdingsValue);
_walletQueryService.GetWallet(Arg.Any <string>()).Returns(cash);
var result = await _sut.GetHoldings("9fefa208-5c52-4435-a3ca-70d1e9cee692");
Assert.That(result.Holdings.Count, Is.EqualTo(3));
Assert.That(result.Cash, Is.EqualTo(100.00M));
Assert.That(result.Value, Is.EqualTo(160.00M));
}