Test Guice projects using the JPAPersistModule with Jukito

DatabaseModule.java

import javax.persistence.EntityManager;

import com.google.inject.AbstractModule;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import com.google.inject.persist.PersistService;
import com.google.inject.persist.jpa.JpaPersistModule;

public class DatabaseModule extends AbstractModule {
	
	@Override
	protected void configure() {
		install(new JpaPersistModule("default"));
		bind(JPAInitializer.class).asEagerSingleton();
	}
	
	@Singleton
	public static class JPAInitializer {

		@Inject
		public JPAInitializer(final PersistService service) {
			service.start();
		}
		
	}
	
}

JPA-Juktio.md

Test Guice projects using the JPAPersistModule with Jukito

This is an example of how to get the JPAPersistModule to work in Jukito test cases, and shows how the PersistService needs to be started on Injector creation to avoid exceptions.

TestDAO.java

import org.jukito.JukitoRunner;
import org.jukito.UseModules;
import org.junit.Test;
import org.junit.runner.RunWith;

import com.google.inject.Inject;

import static org.junit.Assert.*;

@RunWith(JukitoRunner.class)
@UseModules(DatabaseModule.class)
public class TestDAO {

  @Inject
  EntityManager entityManager;
  
  @Test
  public void test() {
    assertNotNull(entityManager);
  }

}