public async Task SavePreviousResultsAsync()
{
//Arrange
var previousResultEntity = new PreviousResult();
previousResultEntity.LifeOfProject = 5;
previousResultEntity.InitialCost = 300000;
previousResultEntity.LowerBoundDiscountRate = 1;
previousResultEntity.UpperBoundDiscountRate = 15;
previousResultEntity.DiscountRateIncrement = 0.65;
previousResultEntity.NetPresentValue = 234553;
previousResultEntity.PresentValueOfCashFlows = 17345;
previousResultEntity.CreatedDate = DateTime.UtcNow;
previousResultEntity.CashFlows.Add(new CashFlows {
Year = 1,
Value = 12345,
});
previousResultEntity.CashFlows.Add(new CashFlows
{
Year = 2,
Value = 24223,
});
previousResultEntity.CashFlows.Add(new CashFlows
{
Year = 3,
Value = 22345,
});
previousResultEntity.CashFlows.Add(new CashFlows
{
Year = 4,
Value = 52344,
});
previousResultEntity.CashFlows.Add(new CashFlows
{
Year = 5,
Value = 12623,
});
//Act
_npvContext.AddPreviousResults(previousResultEntity);
var saveChangesResult = await _npvContext.SaveEntityChangesAsync();
//Assert
Assert.IsTrue(saveChangesResult > 0);
}
public async Task <IActionResult> SavePreviousResults(CalculationModel calculationModel)
{
if (calculationModel == null)
{
throw new Exception("The parameter calculationModel is null");
}
var netPresentValue = Convert.ToDecimal(_calculationService.CalculateNetPresentValue(calculationModel));
var presentValueOfCashFlows = netPresentValue + calculationModel.InitialCost;
var previousResult = new PreviousResult();
previousResult.LifeOfProject = calculationModel.LifeOfProject;
previousResult.InitialCost = calculationModel.InitialCost;
previousResult.LowerBoundDiscountRate = calculationModel.LowerBoundDiscountRate;
previousResult.UpperBoundDiscountRate = calculationModel.UpperBoundDiscountRate;
previousResult.DiscountRateIncrement = calculationModel.DiscountRateIncrement;
previousResult.NetPresentValue = netPresentValue;
previousResult.PresentValueOfCashFlows = presentValueOfCashFlows;
calculationModel?.CashFlows?.ForEach(x =>
{
previousResult.CashFlows.Add(new CashFlows {
Year = x.Year,
Value = x.Value
});
});
previousResult.CreatedDate = DateTime.UtcNow;
_npvContext.AddPreviousResults(previousResult);
var saveChangesResult = await _npvContext.SaveEntityChangesAsync();
if (saveChangesResult > 0)
{
return(Ok(new { Success = true }));
}
return(StatusCode((int)HttpStatusCode.InternalServerError));
}