The problem is that JAX-RS knows how to inject some classes, Guice
the others, and there is no way for me to use constructor injection
where some objects come from Guice and others from JAX-RS. At least, I
don't know how this could be done.
As for the package-private constructor approach, I'd want to use one
constructor for production (without UriInfo) and another one for testing
(with UriInfo) and Guice injecting both of them (which you can't do).
Would it be possible to have a single Guice-injected constructor
that includes objects such as UriInfo which Guice doesn't know how to
inject, then telling Guice to simply bind them to null at production
time and a mock object at testing time? Somehow I suspect Guice doesn't
let you inject null...
Gili
Robbie Vanbrabant wrote:
> In general you should dependency inject it, using constructor
> injection or method injection.
> Field injection is only a good idea in code that you don't need to
> test. I would image that JAX-RS does more than just field injection?
> If that doesn't work, you could add a constructor and make it package
> private. Or create a builder using a library that makes it easy
> (shameless self-promotion: http://tinyurl.com/builderbuilder).
>
> Robbie
>
> On Sun, Oct 26, 2008 at 9:52 PM, Gili <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
>
> Hi,
>
> I've got code that runs on top of JAX-RS and Guice. All my classes use
> construction injection. One such class has the following field:
>
> @Context UriInfo uri;
>
> that is injected after-the-fact by JAX-RS.
>
> When I try unit testing this code I run into a problem because I'm not
> sure how to inject a mock object in place of "uri". Guice isn't
> injecting it in the first place. I was thinking of adding UriInfo to
> the constructor and making it optional but Guice doesn't support that
> sort of thing. Alternatively I could add a setUri() method to be used
> exclusively by the test framework but this seems a bit ugly.
>
> I'm new to unit testing. I would appreciate some advice.
>
> Thank you,
> Gili
>
>
>
> >
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