import com.airhacks.rulz.em.*;
import javax.persistence.EntityManager;
import javax.persistence.EntityTransaction;
import static org.junit.Assert.assertNotNull;
import org.junit.Rule;
import org.junit.Test;


public class WorkshopTest {

    @Rule
    public EntityManagerProvider emProvider = EntityManagerProvider.persistenceUnit("it");

    @Test
    public void crud() {
        EntityManager em = emProvider.em();
        assertNotNull(em);
        EntityTransaction tx = emProvider.tx();
        assertNotNull(tx);
        tx.begin();
        em.merge(new Workshop("html5", "html5 for javaee developers"));
        tx.commit();
    }
}

import javax.ws.rs.client.Client;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertThat;
import org.junit.Rule;
import org.junit.Test;

public class JAXRSClientProviderTest {

    @Rule
    public JAXRSClientProvider provider = JAXRSClientProvider.buildWithURI("http://www.java.com");

    @Test
    public void pingJava() {
        Client client = provider.client();
        assertNotNull(client);
        WebTarget target = provider.target();
        assertNotNull(target);
        Response response = target.request(MediaType.TEXT_HTML).get();
        assertThat(response.getStatus(), is(200));
    }

}