Test web service using unit tests

I have implemented some simple web services, and I want to test them using unit tests. I really don't know how to do it for the POST and DELETE methods. Also I would like to use the @Before and After annotations.

Here is my code:

public class Server {

    public static void main(String[] args) {

        JAXRSServerFactoryBean serverFactory = new JAXRSServerFactoryBean();
        serverFactory.setResourceClasses(SubscriptionService.class);
        serverFactory.setResourceProvider(SubscriptionService.class, 
                new SingletonResourceProvider(new SubscriptionService()));
        serverFactory.setAddress("http://localhost:8080/service/");
        serverFactory.setProvider(JacksonJsonProvider.class);
        serverFactory.create();
    }

}

the class for the Service

@Path("/")
public class SubscriptionService {

    @GET
    @Produces(MediaType.APPLICATION_JSON)
    @Path("/status/{subsId}")
    public Response getSubscriptionStatus(@PathParam("subsId") int subsId) {
        return Response.status(200).entity("subscription status for id: " + subsId).build();
    }

    @POST
    @Consumes(MediaType.TEXT_PLAIN)
    @Produces(MediaType.APPLICATION_JSON)
    public String subscribe(String url) {
//      subscriberList.add(url);
        return "subscribed";
    }

    @DELETE
    @Produces(MediaType.APPLICATION_JSON)
    @Path("/subscriber/{subsId}")
    public String unsubscribe(@PathParam("subId") int subsId ) {
//      subscriberList.remove(subsId);
        return "unsubscribed";
    }

}

and the test class:

public class TestSubscriptionService {

    private SubscriptionService service = new SubscriptionService();

    @Test
    public void testGetSubscriptionStatus() {

        final Response response = service.getSubscriptionStatus(5);

        Assert.assertEquals(200, response.getStatus());
        Assert.assertEquals("subscription status for id: 5", response.getEntity());
    }

    @Test
    public void testSubscribe() {

    }
}

The test for the GET method passes but I don't know if it is ok like I implemented it.

Can anyone help me with some advices