Re: [Nmock-general] remotable mocks

[Joe W. <jo...@tr...>]

Looks cool, but I think I'm missing something. Can you give me a 
scenario of when it would be preferable to host a mock in a remote server?

-joe

Owen Rogers wrote:

>
>
>as i've been doing a bunch of work lately with remoting, i wanted a way to
>test my remotable interfaces and the code that called them.  to facilitate
>this, i've augmented nmock to serve remotable mocks.  this basically
>entails two things:
>1) generating dynamic mocks that extend MarshalByRef so that they can be
>serialised and proxy'ed.
>2) providing a simple server to host the mocks
>
>here's a sample test to show you how it works:
>
>            [Test]
>            public void MarshalRemotingMock()
>            {
>                  RemotingMock mock = new RemotingMock(typeof(Foo));
>                  mock.Expect("Bar");
>
>                  TcpChannel channel = new TcpChannel(1234);
>                  using (MockServer server = new
>MockServer(mock.MarshalByRefInstance, channel, "mock.rem"))
>                  {
>                        Foo foo =
>(Foo)RemotingServices.Connect(typeof(Foo),
>"tcp://localhost:1234/mock.rem");
>                        foo.Bar();
>                  }
>
>                  mock.Verify();
>            }
>
>            interface Foo
>            {
>                  void Bar();
>            }
>
>- as you can see, #1 is accomplished by creating a new instance of
>RemotingMock and passing in the type to mock (done in a similar fashion to
>working with DynamicMock).
>- for #2, create an instance of a MockServer (in a using block).  the mock
>server will install your remotable mock on the specified channel and uri.
>- next, you can retrieve a proxy of your mock using RemotingServices and
>invoke methods on it to your mocking-hearts' content.
>simple, yet very powerful IMO!
>
>here's another example from the CC.NET source:
>
>      [Test]
>            public void SendScheduleToCruiseManager()
>            {
>                  CollectingConstraint projectNameConstraint = new
>CollectingConstraint();
>                  CollectingConstraint scheduleConstraint = new
>CollectingConstraint();
>                  RemotingMock cc = new RemotingMock(typeof
>(ICruiseManager));
>                  cc.Expect("Run", projectNameConstraint,
>scheduleConstraint);
>
>                  TcpChannel channel = new TcpChannel(2334);
>                  using (MockServer server = new
>MockServer(cc.MarshalByRefInstance, channel, "MockCruise.rem"))
>                  {
>                        Runner runner = new Runner();
>                        runner.Url = "tcp://localhost:2334/MockCruise.rem";
>                        runner.Run("myProject");
>                  }
>
>                  AssertEquals("myProject",
>projectNameConstraint.Parameter);
>                  AssertEquals(new Schedule(),
>scheduleConstraint.Parameter);
>                  cc.Verify();
>            }
>
>thoughts?  comments?
>cheers,
>owen.
>
>---
>R. Owen Rogers
>ThoughtWorks Ltd
>
>ThoughtWorks - Deliver with passion!
>
>
>
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