public void Units_setting()
{
var fakeOrderItem = new OrderItem(
productId: 1,
productName: "FakeProductName",
unitPrice: 23.22m,
discount: 100.2m,
PictureUrl: "FakePictureUrl",
units: 10);
Assert.Throws <OrderingDomainException>(() => { fakeOrderItem.AddUnits(-1); });
fakeOrderItem.AddUnits(10);
Assert.Equal <int>(fakeOrderItem.GetUnits(), 20);
}
public void OrderItem_Invalid_Units_Setting()
{
//Arrange
var productId = Guid.NewGuid();
var productName = "A";
const int unitPrice = 12;
var fakeOrderItem = new OrderItem(Guid.NewGuid(), productId, unitPrice, _pricingStrategy);
//Assert
Assert.Throws <ArgumentOutOfRangeException>(() => fakeOrderItem.AddUnits(-1));
}
public void Invalid_units_setting()
{
// Arrange
var productId = 1;
var productName = "FakeProductName";
var unitPrice = 12;
var discount = 15;
var pictureUrl = "FakeUrl";
var units = 5;
// Act
var fakeOrderItem = new OrderItem(productId, productName, unitPrice, discount, pictureUrl, units);
// Assert
Assert.Throws <OrderingDomainException>(() => fakeOrderItem.AddUnits(-1));
}
public void OrderItem_AddUnits_UpdatesUnits()
{
//Arrange
var productId = Guid.NewGuid();
var productName = "A";
const int unitPrice = 12;
var fakeOrderItem = new OrderItem(Guid.NewGuid(), productId, unitPrice, _pricingStrategy);
//Act
fakeOrderItem.AddUnits(1);
const int expectedUnits = 2;
//Assert
Assert.Equal(expectedUnits, fakeOrderItem.GetUnits());
}