public bool ExecuteSale()
{
decimal adjValue = SaleAdjustment.AdjustmentValue;
AdjustmentType adjType = SaleAdjustment.AdjustmentType;
// Add the sale first
if (!DataManager.AddSale(Sale))
{
return(false);
}
// fetch only sales relevent to the adjustment product
var productSales = DataManager.GetReadOnlySaleList().Where(s => s.Product.Equals(SaleAdjustment.Product, StringComparison.OrdinalIgnoreCase)).ToList();
// and adjust them. for each adjusted there will be a sale adjustment history log
productSales.ForEach(s =>
{
// create the adjustment object to log
SaleAdjustmentLog adjLog = new SaleAdjustmentLog(s.SaleId, s.SaleValue, 0, null, SaleAdjustment);
// change the sale value
s.SaleValue = SaleAdjustmentHelper.CalculateSaleValue(adjType, adjValue, s.SaleValue);
// and log the adjustment
adjLog.NewValue = s.SaleValue;
adjLog.OccuredAt = DateTime.Now;
DataManager.AddSaleAdjustment(adjLog);
});
return(true);
}
public void SaleAdjustmentHelper_When_InvalidValues_ThrowsException()
{
// Arrange
OutputLoggerHelper.SkipOutputFile = true;
// Act
// Assert
Assert.Throws(typeof(OverflowException), delegate { SaleAdjustmentHelper.CalculateSaleValue(AdjustmentType.Add, decimal.MaxValue, decimal.MaxValue); });
}
public void SaleAdjustmentHelper_When_12minus15_Equals0()
{
// Arrange
OutputLoggerHelper.SkipOutputFile = true;
decimal returnedValue = 0;
// Act
returnedValue = SaleAdjustmentHelper.CalculateSaleValue(AdjustmentType.Subtract, 15, 12);
// Assert
Assert.AreEqual(0, returnedValue);
}
public void SaleAdjustmentHelper_When_12times15_Equals180()
{
// Arrange
OutputLoggerHelper.SkipOutputFile = true;
decimal returnedValue = 0;
// Act
returnedValue = SaleAdjustmentHelper.CalculateSaleValue(AdjustmentType.Multiply, 12, 15);
// Assert
Assert.AreEqual(180, returnedValue);
}
public void SaleAdjustmentHelper_When_12and15_Equals27()
{
// Arrange
OutputLoggerHelper.SkipOutputFile = true;
decimal returnedValue = 0;
// Act
returnedValue = SaleAdjustmentHelper.CalculateSaleValue(AdjustmentType.Add, 12, 15);
// Assert
Assert.AreEqual(27, returnedValue);
}
