public static bool TryProcessRule(this ParcelRuleBase parcelRule, Parcel parcel, out decimal cost)
{
cost = 0;
//No weight or volume limit. Price by volume only
if (parcelRule.WeightLimit <= 0 && parcelRule.VolumeLimit <= 0)
{
cost = parcel.Volume() * parcelRule.Rate;
return(true);
}
//Weight Limit. Price by weight
if (parcelRule.WeightLimit > 0 && parcel.Weight > parcelRule.WeightLimit)
{
cost = parcel.Weight * parcelRule.Rate;
return(true);
}
//Volume Limit. Price by volume
if (parcelRule.VolumeLimit > 0 && parcel.Volume() < parcelRule.VolumeLimit)
{
cost = parcel.Volume() * parcelRule.Rate;
return(true);
}
return(false);
}
public void TryProcessRule_returns_correct_cost(ParcelRuleBase parcelRule, Parcel parcel, decimal expectedCost)
{
//Given
var sut = parcelRule;
//When
sut.TryProcessRule(parcel, out decimal cost);
//Then
Assert.Equal(expectedCost, cost);
}
