unable to get the mocked property

Hi,

I have a cart object which I am mocking, and I want clients to get a particular items collection, that is why I have the following statement while mocking the cart.

mock.ExpectGetAlways("Items",c.Items);

what is the type of Items?

Hi,
I am trying to understand the code.
Do you have two instances of Cart?
Is one is mocked and returns the value of the other, that isn't mocked?

Scott:

Your understanding is correct. Items is one of the properties in Cart object and it's type is LineItemCollection.

Hi,
I have tried this case, and it works, TypeMock returns the correct value.

Probrably c.Items is null at the time of setting the expectation.
If you want the mocked Items to return the value of c.Items dynamiclly according to its value at runtime, you can use DynamicReturnValue as follows:

private Cart c;
public object ReturnItems(object[] parameters, object context)
{
     return c.Items;
}
[Test]
public void TheTest()
{
     // get cart data
     c = CartObject.Create();
     // init mock manager
     MockManager.Init();
     // mock cart
     mock = MockManager.Mock(typeof(Cart));
     // configure mock
     mock.ExpectGetAlways("Items",new DymanicReturnValue(ReturnItems));
}

Scott:

I guess in my case it is not happening. Here is the code complete.

private Cart _c = new Cart();

// it is guaranteed that when a cart is created like this, the Items Collection is populated with one item

this._c = CartObject.Create();

public object GetItems(object[] parameters, object context)
{
return _c.Items;
}

/// <summary>
/// Test the Delete Function
/// </summary>
[Test]
public void TestDelete()
{

// init mock manager
MockManager.Init();
// mock cart
Mock mock = MockManager.Mock(typeof(Cart));

mock.ExpectGetAlways("Items",new DynamicReturnValue(GetItems));
// configure mock
//Configure(c);

// the following instance would be mocked.
// it is interesting in TypeMock that future/next instances can be mocked.

cart = new Cart();
LineItemCollection items = cart.Items;
//items stll contain nothing

Is there anything that I am not doing ok?

Hi,
Lets put a little code to see what is happening.
Add a small assert that will fail if _c.Items is null.

public object GetItems(object[] parameters, object context)
{
   Assert.IsNotNull(_c.Items,"Woops, _c.Items is null");
   return _c.Items;
} 

You can also check what happens if you return a new LineItemCollection as follows:

LineItemCollection retCollection = new LineItemCollection();
retCollection.Add(...);
mock.ExpectGetAlways("Items",retCollection);