public void Test_CalculateTotal_WHEN_SingleSKUPromotionsApplyTo1Item_THEN_TotalIsAdjusted()
{
var orderItems = new IOrderItem[]
{
GetSKUOrderItem(PromotionEngineTestContext.Products.A, 5)
};
var target = new OrderTotalCalculatorTestBuilder().Build();
var result = target.CalculateTotal(orderItems, PromotionEngineTestContext.ActivePromotions);
Assert.AreEqual(230, result);
}
public void Test_CalculateTotal_WHEN_NoPromotionsApply_THEN_TotalIsUnaffected()
{
// scenario A
var orderItems = new IOrderItem[]
{
GetSKUOrderItem(PromotionEngineTestContext.Products.A, 1),
GetSKUOrderItem(PromotionEngineTestContext.Products.B, 1),
GetSKUOrderItem(PromotionEngineTestContext.Products.C, 1)
};
var target = new OrderTotalCalculatorTestBuilder().Build();
var result = target.CalculateTotal(orderItems, PromotionEngineTestContext.ActivePromotions);
Assert.AreEqual(100, result);
}
public void Test_CalculateTotal_WHEN_SingleAndCombinationSKUPromotionsApply_THEN_TotalIsAdjusted()
{
//scenario C
var orderItems = new IOrderItem[]
{
GetSKUOrderItem(PromotionEngineTestContext.Products.A, 3),
GetSKUOrderItem(PromotionEngineTestContext.Products.B, 5),
GetSKUOrderItem(PromotionEngineTestContext.Products.C, 1),
GetSKUOrderItem(PromotionEngineTestContext.Products.D, 1)
};
var target = new OrderTotalCalculatorTestBuilder().Build();
var result = target.CalculateTotal(orderItems, PromotionEngineTestContext.ActivePromotions);
Assert.AreEqual(280, result);
}