public void Test_GetPortfolioPercentChangeInValueForMonth_Simple()
{
// provjera izračuna postotka mjesečne promjene
string dionica1 = "Dionica1";
_stockExchange.ListStock(dionica1, 1000, 100m, new DateTime(2014, 1, 1, 0, 0, 0, 0)); // 1.1.2014. 0:00 100kn
_stockExchange.SetStockPrice(dionica1, new DateTime(2014, 1, 31, 0, 0, 0, 0), 150); // 15.1.2014. 0:00 150kn (+50%)
string portfolio1 = "portfolio1";
_stockExchange.CreatePortfolio(portfolio1);
_stockExchange.AddStockToPortfolio(portfolio1, dionica1, 100);
Assert.AreEqual(50, _stockExchange.GetPortfolioPercentChangeInValueForMonth(portfolio1, 2014, 1)); // 1. mjesec 2014.
}