Also makes for clean controller tests.

gistfile1.cs

[TestClass()]
public class ConfirmationModuleTest
{
    private Mock<IBus> _bus;
    private Browser _browser;

    [TestInitialize]
    public void Setup()
    {
        _bus = new Mock<IBus>();       

        var bootstrapper = new ConfigurableBootstrapper(with =>
        {
            with.Module<ConfirmationModule>();
            with.Dependency<IBus>(_bus.Object);
        });
        _browser = new Browser(bootstrapper);
    }     

    [TestMethod]
    public void Confirm_done_GET_returns_OK()
    {      
        var response = _browser.Get("/confirm/done");

        Assert.AreEqual(HttpStatusCode.OK, response.StatusCode);
    }

    [TestMethod]
    public void Confirm_POST_puts_command_on_bus()
    {           
        var response = _browser.Post("/confirm/565036d3-9bb8-40a1-b353-ab62cdbc51de");

        _bus.Verify(x => x.ExecuteCommand(new ConfirmQueryCommand(Guid.Parse("565036d3-9bb8-40a1-b353-ab62cdbc51de"))));
    }
}