Ok cool - yeah, in this case it seems like you could use DI but I
understand the trepidation.
The only thing that always sucks is that distributing something like Nancy
requires Ruby to build or you would have to configure the entire test
setup. Invariably someone out there has a setup it won't work with - thus
why mocking and faking is typically preferred for testing. I am using
NSubstitute for something sorta similar (WCF endpoint integration, cloud
storage, etc) and it definitely makes life really easy.
Definitely getting to the point of having tests would take longer.
On Tue, Jul 15, 2014 at 8:29 PM, Hoover, Jacob <jacob.hoo...@greenheck.com>
wrote:
> It’s for WiX, but specifically the new bundle self-update feature I’ve
> been working on. IE, the downloading of an atom feed, as well as the
> downloading and applying of the updated bundle. These features are part of
> the engine. One could also test the other download functions but as they
> are long existing I’m not near as nervous as this new functionality.
>
>
>
>
>
> *From:* Bryan Wolf [mailto:bryanw...@gmail.com]
> *Sent:* Tuesday, July 15, 2014 8:05 PM
>
> *To:* WiX toolset developer mailing list
> *Subject:* Re: [WiX-devs] Self Updating bundles and test cases
>
>
>
> Sorry, I think I may have missed some context. Is this just for your own
> environment? I thought this was for the WiX project itself.
>
>
>
> On Tue, Jul 15, 2014 at 7:36 PM, Hoover, Jacob <jacob.hoo...@greenheck.com>
> wrote:
>
> This is part of why Nancy looks so interesting. It isn't easy to mock the
> engine from a test when doing it from outside your BA. But with Nancy it
> seems you can do that without introducing a new dependency that takes high
> effort to deploy.
>
> With Nancy, I could see spinning up different listeners (or modifying the
> configuration of a single one) in C# per test for the various expected
> cases. With a little effort, one could extend the WixStdBA tests to also
> test external BA's (or at least expose the conditions WiX is testing for).
>
> My ultimate goal is to have a self updating bundle test that works with no
> more changes or effort on the developers behalf than what it takes today
> for a developer to check out WiX source and run the tests.
>
>
> On Jul 15, 2014, at 6:43 PM, "Bryan Wolf" <bryanw...@gmail.com> wrote:
>
> I did want to touch on this because the C# ecosystem does have a lot of
> things that solve this problem.
>
>
>
> It seems like this is probably more a cause for dependency injection and
> something like NSubstitute, which allows you to mock out any interface
> really easily. The danger of using a real IIS system is you're using a real
> IIS system, which means you're coupled tightly to the behaviors and nuances
> that has. Plus you're testing more than is necessary to proof the concept -
> really, you just need something to come back with a canned response. If
> it's in C++ you could use Google Mock or Hippo Mock, but both are way more
> verbose than NSubstitute.
>
>
>
> They describe it really well here: http://nsubstitute.github.io/
>
>
>
> But the thought I was having is you could test pretty easily using
> Dependency Injection and having the class take an instance of, like,
> IHttpWebController or something. Let's say this interface looked like:
>
> interface IHttpWebRequest
>
> {
> ResponsePacket SendRequest(HttpRequestPacket packet);
>
> }
>
>
>
> NSubstitute can easily fake this interface similar to like:
>
> var sub = Substitute.For<IHttpWebController>()
>
> sub.SendRequest(Arg.Any<>()).Returns(new ResponsePacket { set properties
> here });
>
>
>
> Then you could simply change the Bundle class to accept an
> IHttpWebController and viola - you have a totally segregated connection to
> the web where your unit tests aren't trying to hit web addresses that may
> or may not work. I haven't looked in to how the Bundle is manipulating
> HTTP, but it does seem to be that we would want this is as decoupled as
> possible. E.g. there's no real reason that someone couldn't want to develop
> MSI For Mac or something and WiX would be the obvious central piece of that.
>
>
>
> Honestly, I've found that it's almost always easier to work through this
> approach of testing versus trying to spell it all out in detail once you
> get used to it. It also avoids connection issues and other weird behaviors
> like some computers randomly not being able to run unit tests, etc.
>
>
>
> Once you start getting in to DI, it becomes almost automatic that you are
> looking for some type of component service provider. That's when you get in
> to stuff like AutoFac, which can seriously make life way easier for the
> production side application and causes almost an irrelevant performance
> change: http://autofac.org/ My personal opinion is that unit tests should
> never take more than a couple of seconds - starting up IIS Express on my
> computer alone can take 5 or 6. Plus the tests allow you to test things
> that a unit test really can't get; e.g. 500 errors, 302/301/300, 405 black
> holes, etc. In theory those things should "Just work" but it's good to know
> that those error states are covered sometimes (especially 301/302, which
> web servers like to abuse the heck out of in my experience).
>
>
>
>
>
> On Tue, Jul 15, 2014 at 2:22 PM, Rob Mensching <r...@firegiant.com> wrote:
>
> I use IIS Express. A bit of a pain to configure but comes with VS and
> mimics IIS very well (since it is mostly IIS <smile/>).
>
> _______________________________________________________________
> FireGiant | Dedicated support for the WiX toolset |
> http://www.firegiant.com/
>
>
> -----Original Message-----
> From: Hoover, Jacob [mailto:jacob.hoo...@greenheck.com]
> Sent: Tuesday, July 15, 2014 11:22 AM
> To: WiX toolset developer mailing list
> Subject: Re: [WiX-devs] Self Updating bundles and test cases
>
> One suggestion I got from a co-worker was Nancy,
> http://www.nuget.org/packages/Nancy.
>
> -----Original Message-----
> From: Phill Hogland [mailto:phogl...@rimage.com]
> Sent: Tuesday, July 15, 2014 1:14 PM
> To: wix-devs@lists.sourceforge.net
> Subject: Re: [WiX-devs] Self Updating bundles and test cases
>
> source is available on GitHub
> https://github.com/cesanta/mongoose
>
>
>
> --
> View this message in context:
> http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/Self-Updating-bundles-and-test-cases-tp7595852p7595856.html
> Sent from the wix-devs mailing list archive at Nabble.com.
>
>
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