public void TestGivenRecipeScenarios()
{
// recipe 1:
var recipeItems = new List <IRecipeItem>();
recipeItems.Add(new ProduceItem("garlic", "clove", true, 0.67, 1));
recipeItems.Add(new ProduceItem("lemon", "whole", false, 2.03, 1));
recipeItems.Add(new PantryItem("olive oil", "cup", true, 1.92, 0.75));
recipeItems.Add(new PantryItem("salt", "teaspoon", false, 0.16, 0.75));
recipeItems.Add(new PantryItem("pepper", "teaspoon", false, 0.17, 0.5));
var baseCost = CalcRecipeCosts.CalculateCost(recipeItems);
var wellnessDiscount = CalcRecipeCosts.CalculateWellnessDiscount(recipeItems, 0.05);
var salestax = CalcRecipeCosts.CalculateSalesTax(recipeItems, 0.086, 7);
Assert.IsTrue(wellnessDiscount == 0.11);
Assert.IsTrue(salestax == 0.21);
Assert.IsTrue(Utilities.RoundUp(baseCost + salestax - wellnessDiscount, 2) == 4.45);
// recipe 2
recipeItems = new List <IRecipeItem>();
recipeItems.Add(new ProduceItem("garlic", "clove", true, 0.67, 1));
recipeItems.Add(new MeatPoultryItem("chicken breast", "whole", false, 2.19, 4));
recipeItems.Add(new PantryItem("olive oil", "cup", true, 1.92, 0.5));
recipeItems.Add(new PantryItem("vinegar", "cup", false, 1.26, 0.5));
baseCost = CalcRecipeCosts.CalculateCost(recipeItems);
wellnessDiscount = CalcRecipeCosts.CalculateWellnessDiscount(recipeItems, 0.05);
salestax = CalcRecipeCosts.CalculateSalesTax(recipeItems, 0.086, 7);
Assert.IsTrue(wellnessDiscount == 0.09);
Assert.IsTrue(salestax == 0.91);
var total = Utilities.RoundUp(baseCost + salestax - wellnessDiscount, 2);
// note: I had an off by 1 error in the processor where the total was calculated to be 11.020000000000001 which rounds up to 11.03, hence the need for both to pass.
Assert.IsTrue(total == 11.84 || total == 11.85);
// recipe 3
recipeItems = new List <IRecipeItem>();
recipeItems.Add(new ProduceItem("garlic", "clove", true, 0.67, 1));
recipeItems.Add(new ProduceItem("corn", "cup", false, 0.87, 4));
recipeItems.Add(new MeatPoultryItem("bacon", "slice", false, 0.24, 4));
recipeItems.Add(new PantryItem("pasta", "ounce", false, 0.31, 8));
recipeItems.Add(new PantryItem("olive oil", "cup", true, 1.92, Utilities.Convert("1/3")));
recipeItems.Add(new PantryItem("salt", "teaspoon", false, 0.16, Utilities.Convert("1 1/4")));
recipeItems.Add(new PantryItem("pepper", "teaspoon", false, 0.17, Utilities.Convert("3/4")));
baseCost = CalcRecipeCosts.CalculateCost(recipeItems);
wellnessDiscount = CalcRecipeCosts.CalculateWellnessDiscount(recipeItems, 0.05);
salestax = CalcRecipeCosts.CalculateSalesTax(recipeItems, 0.086, 7);
Assert.IsTrue(wellnessDiscount == 0.07);
Assert.IsTrue(salestax == 0.42);
total = Utilities.RoundUp(baseCost + salestax - wellnessDiscount, 2);
Assert.IsTrue(Utilities.RoundUp(baseCost + salestax - wellnessDiscount, 2) == 8.91);
}
static void Main(string[] args)
{
IDictionary <string, IRecipeItem> ingredientsList;
IDictionary <string, IDictionary <string, double> > recipeList;
var settings = LoadSettings();
LoadRecipes(out ingredientsList, out recipeList);
if (ingredientsList == null || recipeList == null)
{
throw new Exception("ingredients or recipe list did not load correctly");
}
var sbResults = new StringBuilder();
foreach (var recipeName in recipeList.Keys)
{
var recipeItemsWithUnits = new List <IRecipeItem>();
foreach (var ingredientName in recipeList[recipeName].Keys)
{
if (!ingredientsList.ContainsKey(ingredientName))
{
throw new Exception("Ingredient " + ingredientName + " does not exist in Ingredient list!");
}
// get a deep copy of the ingredient so we dont alter unit amounts
var ingredient = facIngredientItem.GetItemOfType(ingredientsList[ingredientName], recipeList[recipeName][ingredientName]);
recipeItemsWithUnits.Add(ingredient);
}
// Calculate Recipe Cost
var recipeBaseCost = CalcRecipeCosts.CalculateCost(recipeItemsWithUnits);
var recipeSalestax = CalcRecipeCosts.CalculateSalesTax(recipeItemsWithUnits, settings.SalesTaxPercent, settings.SalesTaxRoundTo);
var recipeWellnessDiscount = CalcRecipeCosts.CalculateWellnessDiscount(recipeItemsWithUnits, settings.WellnessDiscountPercent);
sbResults.AppendLine(recipeName);
// TAX
var sbTmp = new StringBuilder("\tTax = $");
sbTmp.Append(recipeSalestax);
sbResults.AppendLine(sbTmp.ToString());
// DISCOUNT
sbTmp = new StringBuilder("\tDiscount = ($");
sbTmp.Append(recipeWellnessDiscount);
sbTmp.Append(")");
sbResults.AppendLine(sbTmp.ToString());
// TOTAL
sbTmp = new StringBuilder("\tTotal = $");
var total = Utilities.RoundUp(recipeBaseCost + recipeSalestax - recipeWellnessDiscount, 2);
sbTmp.Append(total);
sbResults.AppendLine(sbTmp.ToString());
sbResults.AppendLine(String.Empty);
}
Console.Write(sbResults.ToString());
Console.WriteLine("I noticed that the 11.84 becomes 11.85, this is because the total was calculated to be 11.020000000000001 which rounds up to 11.03, I think the discrepency is minor and the code is correct :)");
Console.Read();
}
public void TestCalcRecipeCosts()
{
try
{
var items = new List <IRecipeItem>();
items.Add(new ProduceItem("nonorganic1", "can", false, 2.12, 1));
items.Add(new ProduceItem("nonorganic2", "jar", false, 3.13, 1));
Assert.IsTrue(CalcRecipeCosts.CalculateWellnessDiscount(items, 100) == 0);
items.Add(new ProduceItem("organic1", "leaf", true, 3.45, 1));
Assert.IsTrue(CalcRecipeCosts.CalculateSalesTax(items, 100, 10) == 0);
var curWellnessDiscount = CalcRecipeCosts.CalculateWellnessDiscount(items, 100);
Assert.IsTrue(curWellnessDiscount > 0);
items.Add(new ProduceItem("organic2", "clove", true, 5.73, 1));
var curWellnessDiscount2 = CalcRecipeCosts.CalculateWellnessDiscount(items, 100);
Assert.IsTrue(curWellnessDiscount2 > curWellnessDiscount);
items.Add(new ProduceItem("nonorganic3", "bag", false, 2.53, 1));
items.Add(new ProduceItem("nonorganic4", "box", false, 1.18, 1));
Assert.IsTrue(CalcRecipeCosts.CalculateSalesTax(items, 100, 10) == 0);
items.Add(new MeatPoultryItem("nonorganic5", "slab", false, 5.18, 1));
var curTax = CalcRecipeCosts.CalculateSalesTax(items, 100, 10);
Assert.IsTrue(curTax > 0);
// adding 0 units of the recipe item
items.Add(new PantryItem("organic4", "gallon", true, 11.21, 0));
Assert.IsTrue(CalcRecipeCosts.CalculateSalesTax(items, 100, 10) == curTax);
Assert.IsTrue(CalcRecipeCosts.CalculateWellnessDiscount(items, 100) == curWellnessDiscount2);
// add 2 units now
items.Add(new PantryItem("organic5", "gallon", true, 11.21, 2));
Assert.IsTrue(CalcRecipeCosts.CalculateSalesTax(items, 100, 10) > curTax);
Assert.IsTrue(CalcRecipeCosts.CalculateWellnessDiscount(items, 100) > curWellnessDiscount2);
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(ex.Message);
Assert.IsTrue(false);
}
}