public void Given_some_prices_When_entity_receives_a_negative_value_for_cost_or_customer_price_Then_throws_a_exception()
{
// Given
var product = new Product {
Id = 1
};
decimal costPrice = -12.99m;
decimal endCustomerPrice = -15.99m;
DateTimeOffset startDate = DateTimeOffset.UtcNow;
// When..., Then
Assert.Throws <ArgumentException>(() => ProductPrice.CreateNewPrice(product, costPrice, endCustomerPrice, startDate));
}
public void Given_Update_Price_Object_When_Calling_UpdatePrice_Method_On_Instance_Of_Product_And_Pass_UpdatePrice_Object_Then_Add_Object_Collection_And_Update_Internal_Fields()
{
//Given
var product = new ProductSeed().GetSeedObject();
var productPrice = ProductPrice.CreateNewPrice(product, costPrice: 12.99m, endCustomerDrugPrice: 15.99m, DateTimeOffset.UtcNow);
//When
product.SetNewPrice(productPrice);
var newPrice = product.ProductPrices.Where(p => p == productPrice).FirstOrDefault();
//Then
Assert.Equal(12.99m, newPrice.CostPrice);
Assert.Equal(15.99m, newPrice.EndCustomerDrugPrice);
Assert.Equal(productPrice, newPrice);
}
public void Given_some_start_date_When_entity_receives_a_date_older_than_actual_Then_set_date_to_actual_utc_date()
{
// Given
var product = new Product {
Id = 1
};
decimal costPrice = 12.99m;
decimal endCustomerPrice = 15.99m;
DateTimeOffset startDate = DateTimeOffset.UtcNow;
// When
var price = ProductPrice.CreateNewPrice(product, costPrice, endCustomerPrice, startDate);
// Then
Assert.NotEqual(startDate, price.Pricestartdate);
}
public void Given_Cost_Price_And_Customer_Price_For_A_ProductPrice_When_Calling_Method_To_Calculates_Percentage_Of_Saving_Then_Return_Saving_Percentage_Between_Cost_Price_And_Customer_Price()
{
// Given
var product = new Product
{
Id = 1
};
decimal costPrice = 12.99m;
decimal endCustomerPrice = 15.99m;
var productPrice = ProductPrice.CreateNewPrice(product, costPrice, endCustomerPrice, DateTimeOffset.UtcNow);
// When
var savingPercentage = productPrice.CalculatePercentageSaving();
// Then
Assert.Equal(0.187617m, savingPercentage, 6);
}
