I think there is a limitation on mocked 'object' as I recall it was due to
some limitation in dynamic proxy. I think you get the same or similar
problem if you try and mock object.ToString()

On 4 February 2010 13:36, bill richards <[email protected]>wrote:

>        [Test]
>        public void TestEquals()
>        {
>            // Arrange
>            var someObject = MockRepository.GenerateMock<Object>();
>            var someParameter = MockRepository.GenerateMock<Object>();
>            someObject.Expect(x
> =>x.Equals(someParameter)).Return(false);
>
>            // Act
>            var result = someObject == someParameter;
>
>            // Assert
>            Assert.That(result, Is.False);
>            someObject.VerifyAllExpectations();
>        }
>
> The above would be the preferred syntax, however, as Tim pointed out,
> it's not testing aything!
> Though I am a little confused as to why the exception is thrown since
> Equals is deffinately a virtual member.
>
> On Feb 4, 12:12 pm, BB <[email protected]> wrote:
> > The error in the exception is "Invalid call, the last call has been
> > used or no call has been made (make sure that you are calling a
> > virtual (C#) / Overridable (VB) method)."
> >
> > Sample code
> >         [Test]
> >         public void TestEquals()
> >         {
> >
> >             MockRepository mocks = new MockRepository();
> >             // example
> >             Object someObject = mocks.CreateMock<System.Object>();
> >             Object someParameter = mocks.CreateMock<System.Object>();
> >             //Exception occurs on the line below Expect.Call
> >
> > Expect.Call<Object>(someObject.Equals(someParameter)).Return(false);
> >             mocks.ReplayAll();
> >             Assert.IsTrue(someObject.Equals(someParameter));
> >         }
>
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