public ActionResult Calculate(CalculatorViewModel viewModel)
{
// Validate parameters
if (!viewModel.IsValid())
{
ViewBag.FormMessage = FormMessages.POST_REQUEST_INVALID_PARAMS;
return(View("Index"));
}
// Get the relevant factory for the controller (casting is safe at this point)
ICalculationFactory calculationFactory = new BinaryCalculationFactory((double)viewModel.Operator1, (double)viewModel.Operator2);
// Convert the requested operation type
CalculationType calculationType = EnumUtils.ConvertToEnum <CalculationType>(viewModel.SelectedCalculation);
try
{
// Get the corresponding calculation type
ICalculation calculation = calculationFactory.Calculation(calculationType);
// Set the result to the view model and
viewModel.Result = calculation.Calculate();
// Log to file asyncronously
LogToFileAsync(viewModel, calculationType);
// Pass the view model back to the view
return(View("Index", viewModel));
}
catch (Exception ex)
{
return(new HttpStatusCodeResult(500, $"Server Error: {ex.Message}"));
}
}
public void Invalid_String_Should_Be_Converted_To_Default_Enum(string enumName, CalculationType calculationType)
{
//Arrange
CalculationType expected = calculationType;
//Act
CalculationType actual = EnumUtils.ConvertToEnum <CalculationType>(enumName);
//Assert
Assert.AreEqual(expected, actual);
}