Hameds

[Test]
using System;

namespace TddStore.Core.Exceptions
{
  public class InvalidOrderException : Exception
  {

  }
}

Hameds

[Test]
public void WhenUserPlacesACorrectOrderThenAnOrderNumberShouldBeReturned()
{
    //Arrange
    var shoppingCart = new ShoppingCart();
    shoppingCart.Items.Add(new ShoppingCartItem { ItemId = Guid.NewGuid(), Quantity = 1 });
    var customerId = Guid.NewGuid();
    var expectedOrderId = Guid.NewGuid();

    Mock.Arrange(() => _orderDataService.Save(Arg.IsAny<Order>()))

Hameds

[TestFixture]
class OrderServiceTests
{
  private OrderService _orderService;
  private IOrderDataService _orderDataService;

  [TestFixtureSetUp]
  public void SetupTestFixture()
  {
    _orderDataService = Mock.Create<IOrderDataService>();

Hameds

[TestFixture]
class OrderServiceTests
{
private OrderService _orderService;

[TestFixtureSetUp]
public void SetupTestFixture()
{
  _orderService = new OrderService();
}

Hameds

[Test]
[ExpectedException(typeof(InvalidOrderException))]
public void WhenAUserAttemptsToOrderAnItemWithAQuantityOfZeroThrowInvalidOrderException()
{
  //Arrange

  //Act
  orderService.PlaceOrder(customerId, shoppingCart);

  //Assert

Hameds

[Test]
[ExpectedException(typeof(InvalidOrderException))]
public void WhenAUserAttemptsToOrderAnItemWithAQuantityOfZeroThrowInvalidOrderException()
{
  //Arrange

  //Act

  //Assert
  Mock.Assert(orderDataService);

Hameds

[Test]
[ExpectedException(typeof(InvalidOrderException))]
public void WhenAUserAttemptsToOrderAnItemWithAQuantityOfZeroThrowInvalidOrderException()
{
  //Arrange

  //Act

  //Assert
}

Hameds

[Test]
public void WhenUserPlacesACorrectOrderThenAnOrderNumberShouldBeReturned()
{
  //Arrange
  var shoppingCart = new ShoppingCart();
  shoppingCart.Items.Add(new ShoppingCartItem { ItemId = Guid.NewGuid(), Quantity = 1 });
  var customerId = Guid.NewGuid();
  var expectedOrderId = Guid.NewGuid();

  var orderDataService = Mock.Create();

Hameds

[Test]
public void WhenUserPlacesACorrectOrderThenAnOrderNumberShouldBeReturned()
{
  //Arrange
  var shoppingCart = new ShoppingCart();
  shoppingCart.Items.Add(new ShoppingCartItem { ItemId = Guid.NewGuid(), Quantity = 1 });
  var customerId = Guid.NewGuid();
  var expectedOrderId = Guid.NewGuid();

  var orderDataService = Mock.Create();

Hameds

public Guid PlaceOrder(Guid customerId, ShoppingCart shoppingCart)
{
  var order = new Order();
  return _orderDataService.Save(order);
}