Integration testing and JNDI resource injection

[maximelaval]

Hi,

I want to test that a DAO/repository works properly with a test database (integration test). In the DAO I inject a JNDI datasource with the resource annotation:

public class SomeDAO {

  @Resource(lookup = "java:comp/env/ds")
  private DataSource dataSource;
  ...
}

I don't want to use any server during the tests, I just want to create a JNDI resource in some way and make Weld discover it and inject it.

Currently I am trying to achieve this using the Simple-JNDI library: when I only test that the InitialContext contains the datasource it works, but when I test the DAO, Weld doesn't find the datasource. 

How to create JNDI resources for Weld to inject, or how to make it work with Simple-JNDI?

I run the tests with a class extending BlockJUnit4ClassRunner, WeldJUnit4Runner:

@RunWith(WeldJUnit4Runner.class)

Where WeldJUnit4Runner initialize Weld.

Is there a way to add a datasource bean to the CDI, injectable with @Resource, before Weld creates an instance of the DAO?

Thanks.

[mkouba]

Hi Maxime,

you would have to implement and register Weld resource injection SPI, ie. either org.jboss.weld.injection.spi.InjectionServices or org.jboss.weld.injection.spi.ResourceInjectionServices. See also EE resource injection and resolution services and Registering services. If using Weld SE you could also subclass org.jboss.weld.environment.se.Weld, override Weld.createDeployment(ResourceLoader, CDI11Bootstrap) and register SPI service programatically - deployment.getServices().add().

[maximelaval]

Hi Martin,

What is the difference between a Service and a WeldBeanDeploymentArchive?

Also how to map the JNDI name to the bean, in my case "java:comp/env/ds"?

Thanks.

[mkouba]

BeanDeploymentArchive represents a CDI bean archive whereas Weld SPI Service implementation makes it possible to integrate Weld in various environments. In your case, I would probably start with implementing org.jboss.weld.injection.spi.InjectionServices.aroundInject(), ie. find all resource injection points, do a JNDI lookup manually and set the field.