public void SellInvestment()
{
// Arrange
StockEngine engine = new YahooStockEngine();
IEnumerable <Quote> stocks = engine.AllQuotes();
Investment investment = new Investment()
{
Id = Guid.NewGuid()
};
decimal newPrice = 1.1m;
// Act
engine.SellInvestment(investment.Id, newPrice, SellReason.HighPrice, DateTime.Today);
// Assert
}