public void FatPercentageForFemaleBasedOffMeasurementsShouldBeAbout25Percent()
{
AppUser appUser = new AppUser("", "", "", 60, GenderType.Female, MeasurementSystem.Imperial);
BodyMeasurement bodyMeasurement = new BodyMeasurement(appUser, 10, 30, 30, 60, 60, DateTime.Today, MeasurementSystem.Imperial);
double actual = BodyFatPercentageCalculator.CalculateBodyFatPercentage(bodyMeasurement);
Assert.AreEqual(25.19, actual, .01);
}
private void TryEditingMeasurement(CreateOrEditBodyMeasurementRequest request)
{
int currentUserId = _userAccessor.GetCurrentUserId();
Dictionary <string, string> errors = new Dictionary <string, string>();
AppUser appUser = _bodyFitTrackerContext.AppUsers.Where(x => x.AppUserId == currentUserId).First();
BodyMeasurement bodyMeasurementToEdit = appUser.BodyMeasurements.Where(x => x.BodyMeasurementId ==
request.IdOfBodyMeasurementToEdit).FirstOrDefault();
if (bodyMeasurementToEdit == null)
{
errors.Add("", $"The bodymeasurement with id {request.IdOfBodyMeasurementToEdit} was not found");
throw new RestException(HttpStatusCode.NotFound, errors);
}
// all measurements in the database should be in imperial units
MeasurementSystem sourceUnits = appUser.MeasurementSystemPreference;
MeasurementSystem destinationUnits = MeasurementSystem.Imperial;
bodyMeasurementToEdit.NeckCircumference =
MeasurementConverter.ConvertLength(request.NeckCircumference, sourceUnits, destinationUnits);
bodyMeasurementToEdit.WaistCircumference =
MeasurementConverter.ConvertLength(request.WaistCircumference,
sourceUnits, destinationUnits);
if (request.HipCircumference.HasValue)
{
bodyMeasurementToEdit.HipCircumference =
MeasurementConverter.ConvertLength((double)request.HipCircumference, sourceUnits, destinationUnits);
}
bodyMeasurementToEdit.Height =
MeasurementConverter.ConvertLength(request.Height, sourceUnits, destinationUnits);
bodyMeasurementToEdit.Weight =
MeasurementConverter.ConvertWeight(request.Weight, sourceUnits, destinationUnits);
bodyMeasurementToEdit.DateAdded = request.DateAdded;
bodyMeasurementToEdit.BodyFatPercentage = BodyFatPercentageCalculator.CalculateBodyFatPercentage(bodyMeasurementToEdit);
_bodyFitTrackerContext.SaveChanges();
}
/// <summary>
/// All units are expected to be in the the units parameter
/// </summary>
public BodyMeasurement(AppUser appUser, double neckCircumference, double waistCircumference, double?hipCircumference, double height, double weight, DateTime dateAdded, MeasurementSystem units)
{
if (appUser == null)
{
throw new ArgumentNullException(nameof(appUser));
}
if (appUser.Gender == GenderType.Female && hipCircumference == null)
{
throw new ArgumentNullException($"{nameof(hipCircumference)} can't be null for {nameof(GenderType.Female)}");
}
AppUser = appUser;
NeckCircumference = neckCircumference;
WaistCircumference = waistCircumference;
AppUserId = appUser.AppUserId;
Weight = weight;
DateAdded = dateAdded;
HipCircumference = appUser.Gender == GenderType.Female ? hipCircumference : null;
Height = height;
Units = units;
BodyFatPercentage = BodyFatPercentageCalculator.CalculateBodyFatPercentage(this);
}