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POWhy does Rhino Mocks error on a stub, but not on the exact same thing as a mock?
 

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  1. POWhy does Rhino Mocks error on a stub, but not on the exact same thing as a mock?
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    <p>I'm fairly new to rhino Mocks, just started using it this project. </p> <p>I am testing some code which calls an external method to get an IEnumerable of 'Project', which I've got an interface for it so that I can stub/mock it out. </p> <p>at the start of my unit test that tests some of the code that iterates over (or calls Count(), both cause the error) that IENumerable, I setup a stub implementation </p> <pre><code>IJobProcess stub = MockRepository.Stub&lt;IJobProcess&gt;(); SetupResult.For(stub.CheckTeamMeetingInLastMonth(null)).IgnoreArguments().Return(true); SetupResult.For(stub.GetOutstandingActions(null)).IgnoreArguments().Return( new List&lt;ProjectActionsDomain.DomainObjects.ProjectAction&gt;() ); </code></pre> <p>This however results in:</p> <pre><code>PmqccFormTests.GetFlagsReturnsIncompleteFlagWhenIncomplete : FailedSystem.InvalidOperationException : Previous method 'IEnumerator.MoveNext();' requires a return value or an exception to throw. at Rhino.Mocks.Impl.RecordMockState.AssertPreviousMethodIsClose() at Rhino.Mocks.Impl.RecordMockState.MethodCall(IInvocation invocation, MethodInfo method, Object[] args) at Rhino.Mocks.MockRepository.MethodCall(IInvocation invocation, Object proxy, MethodInfo method, Object[] args) at Rhino.Mocks.Impl.RhinoInterceptor.Intercept(IInvocation invocation) at Castle.DynamicProxy.AbstractInvocation.Proceed() at System.Linq.Enumerable.Count(IEnumerable`1 source) at PmqccDomain.DomainObjects.PmqccForm.GetFlags() in PmqccForm.cs: line 387 at PmqccUnitTests.PmqccFormTests.GetFlagsReturnsIncompleteFlagWhenIncomplete() in PmqccFormTests.cs: line 426 </code></pre> <p>However, if I change this to </p> <pre><code> IJobProcess mock = MockRepository.GenerateMock&lt;IJobProcess&gt;(); mock.Expect(x =&gt; x.GetOutstandingActions(null)).IgnoreArguments().Return( new List&lt;ProjectActionsDomain.DomainObjects.ProjectAction&gt;()); mock.Expect(x =&gt; x.CheckTeamMeetingInLastMonth(null)).IgnoreArguments().Return(true); </code></pre> <p>It does not error, I thought a stub was a mock that didn't assert on its results basically? or am I wrong there? What does Rhino Mocks do differently that avoids the error when using a mock?</p>
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    1. COCan you post the code at line 387 within PmqccForm.cs.
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    2. COThat line of code simply calls the IJobProcess interface which Rhino mocks is stubbing/mocking out.
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