public void Setup()
{
stockAPIService = Substitute.For <StockAPIService>(new RemoteURLReader());
stockAPIService.GetPrice(Arg.Any <string>()).Returns(150);
logger = Substitute.For <Logger>();
trader = new Trader(stockAPIService, logger);
}
/// <summary>
/// Checks the price of a stock, and buys it if the price is not greater than the bid amount.
/// </summary>
/// <param name="symbol">the symbol to buy, e.g. aapl</param>
/// <param name="bid">the bid amount</param>
/// <returns>whether any stock was bought</returns>
public bool Buy(string symbol, double bid)
{
double price = _stockApiService.GetPrice(symbol);
bool result;
if (price <= bid)
{
result = true;
_stockApiService.Buy(symbol);
_logger.Log("Purchased " + symbol + " stock at $" + bid + ", since its higher that the current price ($" + price + ")");
}
else
{
_logger.Log("Bid for " + symbol + " was $" + bid + " but the stock price is $" + price + ", no purchase was made.");
result = false;
}
return(result);
}
[Test] // everything works
public void TestGetPriceNormalValues()
{
remoteURLReader.ReadFromUrl(String.Format(apipath, "ibm")).Returns("{\n \"symbol\": \"ibm\",\n \"price\": 123\n}");
Assert.AreEqual(123.0d, stockAPIService.GetPrice("ibm"));
}
