static void PrintOutput()
{
Console.WriteLine("*********************Super Simple Stock Market**********************");
Console.WriteLine("Ticker\tPrice\tP/E\t Div.Yield\t\tVW Stock Price");
foreach (IStock stk in _stockService.LoadStockData())
{
var str = $"\n {stk.Ticker} \t {stk.LastPrice} \t {_stockService.CalcPERatio(stk)?.ToString()??"-"} \t\t {_stockService.CalcDividendYield(stk).ToString("P")} \t\t {_tradeService.CalculateVWStockPrice(stk.Ticker,15)}";
Console.WriteLine(str);
}
Console.WriteLine($"\nGBCE All Share Index: {_stockService.CalcAllShareIndex()}");
}
public void CalcDividendYieldNullTest()
{
var divyield = _mockService.CalcDividendYield(null);
Assert.IsTrue(divyield == -1);
}