Very strange ..

[Charliers Frédéric]

 Hi All,

 

 A customer asked me to add some Unit test on his application. First Idea => Unit Test + Rhino Mock, because I had already used Mocking few years ago and was satisfied by the quality of RM.

But I have a problem. I try since 2 days to find a solution on the web => no answer.

 

Here it is (Challenge! :)) :

 

 I Try to mock a repository layer access class (ITemplateRepository) accessed by a method of my Business Layer (ITemplateBl).

 

 Here is the begining of my Business Layer method :

 

// -------------------------------------- 

public IEnumerable<TemplateProjectDto> GetTemplateProjects(CallContext callContext) 

{ 

var templateProjects = _templateRepository.GetTemplateProjects();

var templateProjectWorkOrders = _templateRepository.GetTemplateProjectWorkOrders();

var templateProjectQuestions = _templateRepository.GetTemplateProjectQuestions().OrderBy(x => x.OrderBy);

var templateQuestions = _templateRepository.GetTemplateQuestions();

.....

 

 

nothing very difficult.. I just load data from the repository.

Here is my test :

 

[TestMethod] 

public void GetAllTemplateProject() 

{ 

 ITemplateRepository _templateRepositoryStub = MockRepository.GenerateStub<ITemplateRepository>(); 

 

 _templateRepositoryStub.Stub(repo => repo.GetTemplateProjects()) 

.IgnoreArguments() 

.Return(TemplateProjectMock.GetList());

 

_templateRepositoryStub.Stub(repo => repo.GetTemplateWorkOrders()) 

.IgnoreArguments() 

.Repeat 

.Any() 

.Return(TemplateWorkOrderMock.GetList());

 

_templateRepositoryStub.Stub(repo => repo.GetTemplateWorkOrderLinks()) 

.IgnoreArguments() 

.Repeat 

.Any() 

.Return(TemplateWorkOrderLinkMock.GetList());

 

_templateRepositoryStub.Stub(repo => repo.GetTemplateProjectQuestions()) 

.IgnoreArguments() 

.Repeat 

.Any() 

.Return(TemplateProjectQuestionMock.GetList()); 

 

 

var result = _templateBl.GetTemplateProjects(_callContext) 

.OrderBy(x=>x.Id) 

.ToList();

.....

Thus something very simple .. I just build stubs for repository methods return and I do not take care of parameter at this time (there is only ony and it is optional)..

On the call the code does not return a non visible value for the first call, a null for the other and crash on that call with this error :

An exception of type 'System.InvalidOperationException' occurred in Rhino.Mocks.dll but was not handled in user code

Additional information: Previous method 'ITemplateRepository.GetTemplateProjectWorkOrders(null);' requires a return value or an exception to throw.

It seems clear .. but it is not, as the static class is returning an List of 2 objects (tested, again and again) .. And If I switch 2 line, it still crashing.

On another test with a single call to the repository, it works perfectly .. If I add one, it crashs.

 Any Idea about what i am doing wrong ?

 Regards,

 Frédéric

 

[Patrick Steele]

It's difficult to diagnose since you don't have a complete code sample.

What is "_templateBl"?  How is it created?  How does it get a reference to your mock?

---
Patrick Steele
http://weblogs.asp.net/psteele

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[bill richards]

There is nothing in your code to suggest that your _templateBI is even using the Mock object.

But also you have not stubbed the call to

ITemplateRepository.GetTemplateProjectWorkOrders(null)