Hi Petr, On Mon, Jun 22, 2015 at 7:41 PM, Petr Shypila <ikrump...@gmail.com> wrote: > ...So the only service which injects fine is > o.a.s.jcr.contentloader.ContentReader...
That's correct. If you look at the details of the org.apache.sling.jcr.contentloader bundle at http://localhost:8080/system/console/bundles on a standard Sling instance (for example java -jar target/org.apache.sling.launchpad-8-SNAPSHOT.jar ad launchpad/builder) you see that this bundle only supplies ContentReader services along with a ContentReaderWhiteboard service that's an internal class, not exported AFAICS. If you look the the details of the ContentReader services you can see that they all have an "extensions" property which allows the bundle's internal code to select them. This would be visible from the source code of course but it's easier to find out in that way initially. You could call those ContentReader services directly for testing them but IMO it's more useful to just install new bundles that supply initial content and verify that the content is correctly installed as per https://sling.apache.org/documentation/bundles/content-loading-jcr-contentloader.html . And maybe also update and remove those bundles to verify that the initial content is correctly handled. You'll probably need the RetryRule of the bundles/commons/testing module in your tests as the content won't appear immediately after a test bundle is installed. To create such test bundles you might be able to use https://ops4j1.jira.com/wiki/display/ops4j/Tinybundles but I'm not sure how to include json or other files in such bundles created on the fly - it looks like you just pull stuff from your current classpath so that might work. Otherwise you can use the technique of ./installer/it/pom.xml to generate a few test bundles at build time (look for "Create several simple test bundles" in there). This contentloader bundle is a bit unusual as it uses the so-called "extender pattern" to listen for new bundles that appear with a bundle header that's interesting in terms of content loading. The bundle's main role is not to provided services, it's to process such bundles, so IMO it's best to test that use case directly. Those tests are a bit tricky to setup though, so feel free to ask if you have more questions! Once you tackle this you'll be well equipped to write a large range of Sling tests. -Bertrand
