public void Can_Edit_Product()
{
// Arrange - create the mock repository
Mock<IShoeStoreRepository> mock = new Mock<IShoeStoreRepository>();
mock.Setup(m => m.Products).Returns(new Product[] {
new Product {ProductId = 1, ProductName = "P1"},
new Product {ProductId = 2, ProductName = "P2"},
new Product {ProductId = 3, ProductName = "P3"},
});
// Arrange - create the controller
ProductController target = new ProductController(mock.Object);
// Act
Product p1 = target.Edit(1).ViewData.Model as Product;
Product p2 = target.Edit(2).ViewData.Model as Product;
Product p3 = target.Edit(3).ViewData.Model as Product;
// Assert
Assert.AreEqual(1, p1.ProductId);
Assert.AreEqual(2, p2.ProductId);
Assert.AreEqual(3, p3.ProductId);
}
public void Cannot_Edit_Nonexistent_Product()
{
// Arrange - create the mock repository
Mock<IShoeStoreRepository> mock = new Mock<IShoeStoreRepository>();
mock.Setup(m => m.Products).Returns(new Product[] {
new Product {ProductId = 1, ProductName = "P1"},
new Product {ProductId = 2, ProductName = "P2"},
new Product {ProductId = 3, ProductName = "P3"},
});
// Arrange - create the controller
ProductController target = new ProductController(mock.Object);
// Act
Product result = (Product)target.Edit(4).ViewData.Model;
// Assert
Assert.IsNull(result);
}
public void Cannot_Save_Invalid_Changes()
{
// Arrange - create mock repository
Mock<IShoeStoreRepository> mock = new Mock<IShoeStoreRepository>();
// Arrange - create the controller
ProductController target = new ProductController(mock.Object);
// Arrange - create a product
Product product = new Product { ProductName = "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 type
Assert.IsInstanceOfType(result, typeof(ViewResult));
}
public void Can_Save_Valid_Changes()
{
// Arrange - create mock repository
Mock<IShoeStoreRepository> mock = new Mock<IShoeStoreRepository>();
// Arrange - create the controller
ProductController target = new ProductController(mock.Object);
// Arrange - create a product
Product product = new Product { ProductName = "Test" };
// Act - try to save the product
ActionResult result = target.Edit(product);
// Assert - check that the repository was called
mock.Verify(m => m.SaveProduct(product));
// Assert - check the method result type
Assert.IsNotInstanceOfType(result, typeof(ViewResult));
}