Hi there,

I've tried Googling this but turned up no results - was hoping I could
get some guidance from the list. Basically i've got a class which has
an expectation that AssertWasCalled on a method which takes in a List
as a parameter. If i call it twice with two new'ed up lists, the
framework fails the assertion citing "Expected #1, Actual #2".

I've devised the following test-case to reproduce the situation:
/************/
using System.Collections.Generic;
using NUnit.Framework;
using Rhino.Mocks;

namespace Test
{
    [TestFixture]
    public class ATest
    {
        private IActor _mockActor;
        private Manager _manager;
        private List<int> _list1, _list2;

        [SetUp]
        public void SetUp()
        {
            _list1 = new List<int>();
//            _list1.Add(0);
            _list2 = new List<int>();

            _mockActor = MockRepository.GenerateMock<IActor>();

            _manager = new Manager(_mockActor);
            _manager.DoItOnActor(_list1);
            _manager.DoItOnActor(_list2);
        }

        [Test]
        public void ShouldPerformActionOnList1()
        {
            _mockActor.AssertWasCalled(x => x.PerformAction(_list1));
        }

        [Test]
        public void ShouldPerformActionOnList2()
        {
            _mockActor.AssertWasCalled(x => x.PerformAction(_list2));
        }
    }

    public interface IActor
    {
        void PerformAction(List<int> list);
    }

    public class Manager
    {
        private readonly IActor _actor;

        public Manager(IActor actor)
        {
            _actor = actor;
        }

        public void DoItOnActor(List<int> dataForActor)
        {
            _actor.PerformAction(dataForActor);
        }
    }
}

/***********/

If I uncomment the second line in the set-up, Rhino seems to treat the
lists differently and the expectations pass. However, because they are
different lists (they just happen to both be empty in this scenario),
I believe I should be able to call them like that and the scenario
should pass. Any hints?

Thanks,
Xerx

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