Comments on: Given, when, then and examples for classes

By: Olof Bjarnason

Olof Bjarnason — Fri, 12 Dec 2008 00:36:49 +0000

Liz! Thanks for shedding some more light to my BDD journey! The login example is much easier to understand, I’m not a farmer haha

cya

By: Phil

Phil — Thu, 11 Dec 2008 03:12:58 +0000

In your second example…I think I am missing something. Don’t you need to inject the mock(Authenticator) into the controller? I have not used this framework, so I may be missing something. Thanks.

Hmm, DI without the I. Fixed! Thanks – Liz

By: liz

liz — Thu, 11 Dec 2008 00:14:24 +0000

Since I can edit your comments, I’ve thrown the tags in – thank you, these are great!



By: Mike
Mike — Wed, 10 Dec 2008 17:58:41 +0000
opps sorry … the types in the generics TestObjectFor BehaviorOf don’t show in the post  
Fixed, I hope I got them right – Liz



By: Mike
Mike — Wed, 10 Dec 2008 17:55:40 +0000
Hi Liz,
I just wanted to write that test with fluentspec (in c#) if you don’t mind. 


public class CowhandTest : BehaviorOf {

  public void shouldMilkTheCow() {

    var daisy = TestObjectFor();
    Given.Shed.getCowByName("Daisy").Is(daisy);

    When.milkCow("Daisy");

    Then.Should(daisy).milk();

  }

}


that was with fluent syntax an having Shed as a property in Cowhand

keeping it closer to the example with classic syntax would look like ..


public class CowhandTest {

  public void shouldMilkTheCow() {
    // Given a repository which knows about one cow

    var shed = Create.TestObjectFor();

    var daisy = Create.TestObjectFor();
    Given.That(shed).getCowByName("Daisy").Is(daisy);
    // Given a cowhand who knows where the cows are kept

    var cowhand = new Cowhand(shed);
    // When I ask the cowhand to milk the cow

    cowhand.milkCow("Daisy");
    // Then the cow should have been milked

    Then.Should(daisy).milk();

  }

}


cheers

mike



By: Gabriel Schenker
Gabriel Schenker — Wed, 10 Dec 2008 10:02:00 +0000
uuups, my angle brackets in the code have been eaten! Should be 
ICowRepository shed = MockRepository.CreateMock();

Cow daisy = MockRepository.CreateMock();
Fixed – I love that I can do that in Wordpress! – Liz



By: Gabriel Schenker
Gabriel Schenker — Wed, 10 Dec 2008 09:59:00 +0000
Liz, thanks a lot for all of your very insightful postings here and in the BDD mailing list! I tried to write down your sample for C# and Rhino.Mocks


[TestFixutre]

public class CowhandTest {

  [Test]

  public void shouldMilkTheCow() {

    // Given a repository which knows about one cow

    ICowRepository shed = MockRepository.CreateMock();

    Cow daisy = MockRepository.CreateMock();

    shed.Stub(x=>x.getCowByName("Daisy")).Return(daisy);
    // Given a cowhand who knows where the cows are kept

    Cowhand cowhand = new Cowhand(shed);
    // When I ask the cowhand to milk the cow

    cowhand.milkCow("Daisy");
    // Then the cow should have been milked

    daisy.AssertWasCalled(x=>x.milk());

  }

}


I try to even re-arrange my test further like this (gives me a clearer separation of concerns)


[TestFixture]

public class CowhandTest : SpecificationBase

{

  protected override void Context() {

    // Given a repository which knows about one cow

    ICowRepository shed = MockRepository.CreateMock();

    Cow daisy = MockRepository.CreateMock();

    shed.Stub(x=>x.getCowByName("Daisy")).Return(daisy);

    // Given a cowhand who knows where the cows are kept

    Cowhand cowhand = new Cowhand(shed);

  }
  protected override void Because() {

    // When I ask the cowhand to milk the cow

    cowhand.milkCow("Daisy");

  }
  [Test]

  public void shouldMilkTheCow() {

    // Then the cow should have been milked

    daisy.AssertWasCalled(x=>x.milk());

  }

}





By: Tore Vestues
Tore Vestues — Wed, 10 Dec 2008 09:19:04 +0000
Great! 
I guess this post was triggered by my questions on BDD and DDD posted here: http://groups.google.com/group/behaviordrivendevelopment/browse_thread/thread/90e864e69c2e72ef
This post puts it all together for me. Thank you for taking the time to explain this.
Now I see that BDD and DDD works nice together.
- Tore Vestues



By: Olof Bjarnason
Olof Bjarnason — Wed, 10 Dec 2008 08:14:30 +0000
Liz;
Could you please translate this to some less-abstract example than milking cows using software..? I just don’t understand what your SUT is all about.
Maybe something including login-logic or some other more day-to-day software example.