public void Totals_Are_Using_Correct_Adjustment_Rates()
{
var calc = new RecipeCalculator();
var receiptItems = calc.CreateRecipeReceipt(CreateRecipeTwo());
var receiptTotals = calc.TotalCost(receiptItems);
decimal beforeTax = receiptItems.FirstOrDefault(chicken => chicken.ProductId == 4).BeforeTaxTotal;
decimal afterTax = calc.ApplySalesTax(beforeTax);
var taxPercentageDifference = Math.Round((Math.Round((afterTax - beforeTax), 2) / beforeTax), 3) * 100;
decimal beforeDiscount = receiptItems.FirstOrDefault(garlic => garlic.ProductId == 1).BeforeTaxTotal;
decimal afterDiscount = calc.ApplyWellnessDiscount(beforeDiscount);
var discountPercentageDifference = ((beforeDiscount - afterDiscount) / beforeDiscount) * 100;
Assert.IsNotNull(receiptItems);
Assert.IsNotNull(receiptTotals);
Assert.AreNotEqual(0, receiptItems.Count);
Assert.IsNotNull(discountPercentageDifference);
Assert.AreEqual(WelnessDiscountRate, discountPercentageDifference);
Assert.IsNotNull(taxPercentageDifference);
Assert.AreEqual(TaxRate, taxPercentageDifference);
//View receipt results in the Output pane.
PrintReceiptToOutput(calc.CreateRecipeReceipt(CreateRecipeOne()), calc.TotalCost(calc.CreateRecipeReceipt(CreateRecipeOne())));
PrintReceiptToOutput(calc.CreateRecipeReceipt(CreateRecipeTwo()), calc.TotalCost(calc.CreateRecipeReceipt(CreateRecipeTwo())));
PrintReceiptToOutput(calc.CreateRecipeReceipt(CreateRecipeThree()), calc.TotalCost(calc.CreateRecipeReceipt(CreateRecipeThree())));
}
public void Retrieve_AdjustmentRate_Settings()
{
var calc = new RecipeCalculator();
var salesTax = calc.AppSettings.SalesTax;
Assert.IsNotNull(salesTax);
Assert.AreEqual(TaxRate, salesTax);
}
public void Verify_Price_Before_Tax()
{
var calc = new RecipeCalculator();
var quantity = 2;
var chicken = new IngredientBO()
{
Id = 1,
ProductId = 4,
Quantity = quantity,
RecipeId = 1,
UnitType = Enums.UnitTypes.None
};
var expected = (quantity * 2.19m);
decimal beforeTax = calc.BeforeTaxPrice(chicken);
Assert.IsNotNull(beforeTax);
Assert.AreEqual(expected, beforeTax);
}
public void Verify_Tax_Rate_Is_Correct()
{
var calc = new RecipeCalculator();
var chicken = new IngredientBO()
{
Id = 1,
ProductId = 4,
Quantity = 17,
RecipeId = 1,
UnitType = Enums.UnitTypes.None
};
decimal beforeTax = calc.BeforeTaxPrice(chicken);
decimal afterTax = calc.ApplySalesTax(beforeTax);
var percentageDifference = Math.Round((Math.Round((afterTax - beforeTax), 2) / beforeTax), 3) * 100;
Assert.IsNotNull(beforeTax);
Assert.IsNotNull(afterTax);
Assert.IsNotNull(percentageDifference);
Assert.AreEqual(TaxRate, percentageDifference);
}