Re: [RhinoMocks] Re: Stubbing a void method

Tim Barcz Wed, 18 Aug 2010 18:43:23 -0700

Samah,

The code you want is below (I encourage you to paste into your code and run
(note the use of xUnit)...a few notes however



   - I've used AAA syntax, which is our preferred method (over
   record/replay)
   - Since we're "stubbing" foo1 (that is intercepting calls made to it), it
   needs to be virtual.  Method foo2 does not have this requirement.
   - I'm using xUnit as the testing framework - this should translate very
   easily to MSTest (as it appears you are using)
   - The correct output of this program should be "I'm in foo2" - even
   though "I'm in foo1" coded into foo1, the call to it is intercepted.


Certainly if you have more questions, just ask.

Cheers,

Tim


public class FieldProblem_Samah
{
  [Fact]
  public void CanMockMethodWithEnvironmentPermissions()
  {
      // Arrange
      var mockedFoo = MockRepository.GeneratePartialMock<fooClass>();
      mockedFoo.Stub(x => x.foo1());

      // Act
      mockedFoo.methodToTest();

      // Assert
      mockedFoo.AssertWasCalled(x=>x.foo1());
  }
}

public class fooClass
{

  public void methodToTest ()
  {
      foo1();
      foo2();
  }

  public virtual void foo1()
  {
      Console.WriteLine("I'm in foo1");
  }

  public void foo2()
  {
      Console.WriteLine("I'm in foo2");
  }

}

On Wed, Aug 18, 2010 at 2:23 PM, samah <[email protected]> wrote:

>
> Thanks for your replyes..
>
> The senario I have is
>
> public class fooClass {
>
> public void methodToTest {
>
>   ....
>   calls foo1
>   calls foo2
> }
>
> }
>
>
> I want to test if the "methodToTest" calls foo2 but I don't want it to
> break when calling foo1 and I want to use Partial Mocks because I want
> the test to use the actual methods when not set in the expectations
>
> [testMethod()]
> public void test()
> {
>    MockRepository mocks = new MockRepository();
>
>    fooClass fakeClass = mocks.PartialMock<fooClass>();
>
>  **  fakeClass.Stub(x => x.foo1()).whenCalled(x => ;);
>
>    using(mocks.Record())
>   {
>        fakeClass.foo2();
>   }
>
>   mocks.Verify(fakeClass);
>
> }
>
> How do I Stub foo1 on line *, I don't want to assert anything against
> it I just don't want to break my test becuase it is talking to an
> outsource dependency?
>
> Thanks,
>
> Samah
>
>
> On Aug 17, 9:11 pm, Tim Barcz <[email protected]> wrote:
> > Per my original email, I would actually suggest using a mock
> > MockRepository.GenerateMock<IFoo>();
> >
> > While you *can* assert on Stubs, it's muddied the waters a bit and the
> more
> > semantically correct use is a Mock.
> >
> > Tim
> >
> >
> >
> >
> >
> > On Tue, Aug 17, 2010 at 8:16 PM, David Tchepak <[email protected]>
> wrote:
> > > public interface IFoo {
> > >   void DoFoo();
> > > }
> >
> > > var foo = MockRepository.GenerateStub<IFoo>();
> >
> > > //Do something when void method is called:
> > > foo.Stub(x => x.DoFoo()).WhenCalled(x => RunSomeCode());
> >
> > > //Assert void method was called
> > > foo.AssertWasCalled(x => x.DoFoo());
> >
> > > Hope this helps.
> > > Regards,
> > > David
> >
> > > On Wed, Aug 18, 2010 at 5:36 AM, samah <[email protected]>
> wrote:
> >
> > >> Hi all,
> >
> > >> How can we stub a method that returns nothing using Rhino Mocks?
> >
> > >> Thanks,
> >
> > >> -Samah
> >
> > >> --
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-- 
Tim Barcz
Microsoft C# MVP
Microsoft ASPInsider
http://timbarcz.devlicio.us
http://www.twitter.com/timbarcz

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Re: [RhinoMocks] Re: Stubbing a void method

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