/// <summary>
/// Call api/converter/convert endpoint to convert a number to its textual representation
/// </summary>
/// <param name="detail">A number detail view model</param>
/// <returns>A processed number detail</returns>
public NumberDetail ConvertNumebrDetail(NumberDetailViewModel detail)
{
NumberDetail result = null;
HttpResponseMessage response = null;
try
{
using (HttpClient client = new HttpClient())
{
ConfigureHttpClient(client);
response = client.PostAsync("api/converter/convert", detail, new JsonMediaTypeFormatter()).Result;
response.EnsureSuccessStatusCode();
result = response.Content.ReadAsAsync <NumberDetail>().Result;
}
}
catch (Exception)
{
throw new ApplicationException(response.ReasonPhrase);
}
return(result);
}
public void ProcessNumber_NegativeNumber_ReturnException()
{
var numberDetail = new NumberDetail
{
Name = "Behnam Karimi",
Number = -100.12m
};
var bc = new ConverterComponent();
var exception = Assert.Throws <ArgumentException>(() => bc.ProccesNumber(numberDetail));
Assert.AreEqual("The number should be positive.", exception.Message);
}
public ActionResult Index(NumberDetailViewModel numberDetailViewModel)
{
try
{
ConverterProcess process = new ConverterProcess();
// calls UI process to converts the number
NumberDetail result = process.ConvertNumebrDetail(numberDetailViewModel);
return(View("Result", result));
}
catch (Exception)
{
ModelState.AddModelError("Number", "Unable to process the request.");
return(View("Index"));
}
}
/// <summary>
/// Processes a number detail and converts the number to its textual representation
/// </summary>
/// <param name="numberDetail"></param>
/// <returns></returns>
public NumberDetail ProccesNumber(NumberDetail numberDetail)
{
if (numberDetail.Number < 0)
{
throw new ArgumentException("The number should be positive.");
}
ulong integer = (ulong)Truncate(numberDetail.Number); // extracts the integer part of the numebr
ulong decimals = (ulong)((numberDetail.Number - integer) * 100); // extracts the decimals of the number and converts it to integer
// generates a text for the response
// format: [integer] dollar(s) and [decimals] cent(s)
numberDetail.ConvertedNumber =
($"{integer.ToText()} dollar{(integer > 1 ? "s" : "")}" +
$"{(decimals > 0 ? $" and {decimals.ToText()} cent{(decimals > 1 ? "s" : "")}" : "")}");
return(numberDetail);
}
public HttpResponseMessage Convert(NumberDetailRequest request)
{
try
{
// maps the reqeust data contract to entity to be passed to business layer
NumberDetail numberDetail = Mapper.Map <NumberDetailRequest, NumberDetail>(request);
ConverterComponent converter = new ConverterComponent();
NumberDetail result = converter.ProccesNumber(numberDetail);
// creates a response with 200 status code and passes the result.
return(Request.CreateResponse(HttpStatusCode.OK, result));
}
catch (Exception ex)
{
return(Request.CreateResponse(HttpStatusCode.InternalServerError, ex.Message));
}
}
public void ProccesNumberTest(decimal number, string expected)
{
var numberDetail = new NumberDetail
{
Name = "Behnam Karimi",
Number = number
};
var bc = new ConverterComponent();
var result = bc.ProccesNumber(numberDetail);
TestContext.Out.WriteLine(numberDetail.ToString());
Assert.AreNotEqual(numberDetail.Id, Guid.Empty);
Assert.AreEqual(numberDetail.DateCreated.Date, DateTime.UtcNow.Date);
Assert.IsFalse(string.IsNullOrWhiteSpace(numberDetail.ConvertedNumber));
Assert.IsFalse(string.IsNullOrWhiteSpace(numberDetail.Name));
Assert.AreEqual(expected, numberDetail.ConvertedNumber);
}
