private static void CheckItemValueOperation(OperationWay operationWay, int operand, int currentItemValue, int originalItemValue)
{
switch (operationWay)
{
case OperationWay.Reduced:
Check.That(currentItemValue).IsEqualTo(originalItemValue - operand);
break;
case OperationWay.Increased:
Check.That(currentItemValue).IsEqualTo(originalItemValue + operand);
break;
case OperationWay.Equal:
Check.That(currentItemValue).IsEqualTo(operand);
break;
case OperationWay.LowerOrEqual:
Check.That(currentItemValue <= operand).IsTrue();
break;
case OperationWay.Unknown:
default:
throw new ArgumentOutOfRangeException("stepWay");
}
}
public void ThenItemsXPropertyIsYModifiedBy(CheckedProperty checkedProperty, OperationWay operationWay, int operand)
{
foreach (var currentItem in _program.Items)
{
var originalItem = _originalItems.Single(o => o.Name == currentItem.Name);
switch (checkedProperty)
{
case CheckedProperty.SellIn:
CheckItemValueOperation(operationWay, operand, currentItem.SellIn, originalItem.SellIn);
break;
case CheckedProperty.Quality:
CheckItemValueOperation(operationWay, operand, currentItem.Quality, originalItem.Quality);
break;
case CheckedProperty.Unknown:
default:
throw new ArgumentOutOfRangeException("checkedProperty");
}
}
}
