public void Test_close_should_return_total_investment_amount()
{
StockHistory history = new StockHistory();
Quote quote = new Quote(1, 2);
Broker broker = new Broker(0);
Investment investment = new Investment(history, broker);
DateTime closeDate = new DateTime(2020, 3, 1);
Wallet wallet = new Wallet();
wallet.AddStocks(10);
double totalPrice = 20;
history.Add(closeDate, quote);
Assert.AreEqual(totalPrice, investment.Close(wallet, closeDate));
}