Asserting that a method is called exactly one time

Question

I want to assert that a method is called exactly one time. I\'m using RhinoMocks 3.5.

Here\'s what I thought would work:

Answer 1

Here is what I just did (as recommended by Ray Houston). I would still appreciate a more elegant solution...

[Test]
public void just_once()
{
    var key = "id_of_something";

    var source = MockRepository.GenerateStub();

    // set a positive expectation
    source.Expect(x => x.GetSomethingThatTakesALotOfResources(key))
        .Return(new Something())
        .Repeat.Once();

    var client = new Client(soure);

    client.GetMeMyThing(key);

    // set a negative expectation
    source.Expect(x => x.GetSomethingThatTakesALotOfResources(key))
        .Return(new Something())
        .Repeat.Never();

    client.GetMeMyThing(key);
}