public ActionResult Edit(Product product)
{
if (ModelState.IsValid)
{
repository.SaveProduct(product);
TempData["message"] = string.Format("{0} has been saved", product.Name);
return RedirectToAction("Index");
}
else
{
//There is something wrong with the data values
return View(product);
}
}
//Adds a item or quanity to the shopping cart for a specific product
public void AddItem(Product product, int quantity)
{
CartLine line = lineCollection
.Where(p => p.Product.ProductID == product.ProductID)
.FirstOrDefault();
if (line == null)
{
lineCollection.Add(new CartLine { Product = product, Quantity = quantity });
}
else
{
line.Quantity += quantity;
}
}
//Saves a new Product to the database.
public void SaveProduct(Product product)
{
if (product.ProductID == 0)
{
context.Products.Add(product);
}
else
{
Product dbEntry = context.Products.Find(product.ProductID);
if (dbEntry != null)
{
dbEntry.Name = product.Name;
dbEntry.Description = product.Description;
dbEntry.Price = product.Price;
dbEntry.Category = product.Category;
}
}
context.SaveChanges();
}
public void Cann_Save_Valid_Changes()
{
//Arrange - Create mock repository
Mock<IProductsRepository> mock = new Mock<IProductsRepository>();
//Arrange - Create the controller
AdminController target = new AdminController(mock.Object);
//Arrange - Create a Product
Product product = new Product { Name = "Test" };
//Act - Try to save the product
ActionResult result = target.Edit(product);
//Assert - Check if the repository was called
mock.Verify(m => m.SaveProduct(product));
//Assert - Check the method result type
Assert.IsNotInstanceOfType(result, typeof(ViewResult));
}
public void Cannot_Save_Invalid_Changes()
{
//Arrange - Create mock repository
Mock<IProductsRepository> mock = new Mock<IProductsRepository>();
//Arrange - Create the controller
AdminController target = new AdminController(mock.Object);
//Arrange - Create a Product
Product product = new Product { Name = "Test" };
//Arrange - Add an error to the model state
target.ModelState.AddModelError("error", "error");
//Act - try to save the product
ActionResult result = target.Edit(product);
//Assert - Check that the repository was not called
mock.Verify(m => m.SaveProduct(It.IsAny<Product>()), Times.Never());
//Assert - Check the method result
Assert.IsInstanceOfType(result, typeof(ViewResult));
}
public void Can_Delete_Valid_Products()
{
//Arrange - Create a Product
Product prod = new Product { ProductID = 2, Name = "Test" };
//Arrange - Create the mock repository
Mock<IProductsRepository> mock = new Mock<IProductsRepository>();
mock.Setup(m => m.Products).Returns(new Product[]{
new Product {ProductID = 1, Name = "P1"},
prod,
new Product { ProductID = 3, Name = "P3"},
});
//Arrange - Create the controller
AdminController target = new AdminController(mock.Object);
//Act - Delete the product
target.Delete(prod.ProductID);
//Assert - Ensure that the repository delete method was called with the correct Product
mock.Verify(m => m.DeleteProduct(prod.ProductID));
}
//Removes the entire line item for the specific product
public void RemoveLine(Product product)
{
lineCollection.RemoveAll(l => l.Product.ProductID == product.ProductID);
}
