public void TestCalculateYears0()
{
var data = new StockData
{
Price = 200,
Percentage = 3,
Quantity = 17,
Years = 0
};
var result = StockCalculator.Calculate(data);
Assert.AreEqual(1, result.Count);
}
public void TestCalculatePercentage0()
{
var data = new StockData
{
Price = 0,
Percentage = 3,
Quantity = 17,
Years = 7
};
var result = StockCalculator.Calculate(data);
Assert.AreEqual(data.Years + 1, result.Count);
foreach (var value in result)
{
Assert.AreEqual(result[0], value);
}
}
public void TestCalculatePriceOrQuantity0()
{
var data = new StockData
{
Price = 0,
Percentage = 3,
Quantity = 17,
Years = 7
};
var result = StockCalculator.Calculate(data);
CheckValues(data, result);
data.Price = 200;
data.Quantity = 0;
result = StockCalculator.Calculate(data);
CheckValues(data, result);
}
public void TestCalculateByRegularWay()
{
var data = new StockData
{
Price = 200,
Percentage = 3,
Quantity = 17,
Years = 6
};
var result = StockCalculator.Calculate(data);
Assert.AreEqual(data.Years + 1, result.Count);
Assert.AreEqual(data.Price * data.Quantity, result[0]);
for (int i = 1; i < result.Count; i++)
{
Assert.AreEqual(result[i - 1] + result[i - 1] * (decimal)data.Percentage / 100, result[i]);
}
}
//TODO: there are missed tests for double convertion to decimal
public void TestCalculateByPriceMaxValue()
{
var data = new StockData
{
Price = decimal.MaxValue,
Percentage = 3,
Quantity = 17,
Years = 6
};
try
{
StockCalculator.Calculate(data);
Assert.Fail("An exception with OverflowException type is ecpexted.");
}
catch (Exception e)
{
Assert.IsInstanceOfType(e, typeof(OverflowException));
}
}
public HttpResponseMessage Calculate(StockDetails details)
{
if (!ModelState.IsValid)
{
return(Request.CreateErrorResponse(System.Net.HttpStatusCode.BadRequest, ModelState));
}
//custom validation for price
if (details.Price < 0)
{
ModelState.AddModelError("Price", string.Format("The value {0} is not valid for the field Price", details.Price));
return(Request.CreateErrorResponse(System.Net.HttpStatusCode.BadRequest,
ModelState));
}
//Need to encode string before save in repository
details.Name = HttpUtility.HtmlEncode(details.Name);
var result = StockCalculator.Calculate(new StockData(details));
var repository = new StockHttpApplicationRepository(HttpContext.Current.Application);
repository.Add(new StockCalculationResult(details, result));
return(Request.CreateResponse(System.Net.HttpStatusCode.OK, result));
}