Hi,
Ok, I knew I should have put more thought into the sample!
That is fine if the object isn't changed again later.
That is the case in my simple example, but what if the example cleared
the list after it was saved?
So change the function to
public static void Incrementer(List<int> list)
{
list.Add(1);
dummy.Save(list);
list.Clear();
}
I want to know what the value of list was when dummy.Save() was
called, I need to perform the test when Save() is called.
If I was to pass in a different instance of List<int> from the one
specified in the mock the code will fail on the Save() call because
the objects are not the same, I need to be able to force a comparison
at the same point in the execution.
I suppose fundamentally I want the option of testing equivalence
instead of equality, they may be the same objects but they have
different states and it is the state I care about.
Looking at it another way imagine if I knew the list I passed in would
be copied into a newly created local list.
I know what the contents of the new list will be but I couldn't pass
that as a value to my mock since they are different objects so I would
have to ignore the arguments completely.
Hope that makes more sense?
Vin
On Sep 22, 5:01 pm, Nathan Alden <[email protected]> wrote:
> If you wish to do state-based testing like "list.Count == 1" then simply use
> NUnit's Assert class:
>
> Assert.That(list.Count, Is.EqualTo(1));
>
> On Tue, Sep 22, 2009 at 10:58 AM, vin <[email protected]> wrote:
>
> > Hi,
>
> > I am trying to do something I thought would be common but can't find
> > anywhere.
> > I'll include full code below.
>
> > I want to have a Mocked object and make sure it calls a function, fine
> > so far.
> > The function takes an argument and I want to make sure the argument
> > has changed from what I passed in.
> > It will still be the same object but it's properties have changed.
>
> > So I am mocking a function that takes a List<int> as an argument, and
> > I don't want the test to be "is this the same object" I want it to be
> > "is the Count on the object equal to 1".
>
> > Is this possible?
>
> > Hopefully the code will explain this better.
>
> > Thanks, Vin
>
> > namespace TestingMocks
> > {
> > [TestClass]
> > public class TestingMock
> > {
> > [TestMethod]
> > public void TestMe()
> > {
> > MockRepository mocks = new MockRepository();
>
> > List<int> list = new List<int>();
>
> > Dummy dummy = mocks.DynamicMock<Dummy>();
> > using (mocks.Ordered())
> > {
> > dummy.Save(list);
> > Testing.dummy = dummy;
> > }
> > mocks.ReplayAll();
>
> > Testing.Incrementer(list);
>
> > mocks.VerifyAll();
> > }
> > }
>
> > public class Testing
> > {
> > public static Dummy dummy { get; set; }
>
> > public static void Incrementer(List<int> list)
> > {
> > list.Add(1);
> > dummy.Save(list);
> > }
> > }
>
> > public class Dummy
> > {
> > public virtual void Save(List<int> list)
> > {
> > }
> > }
> > }
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