Jersey Test FrameworkとGuiceを一緒に使う ref: http://qiita.com/hisamekms/items/85de686f32d3a5d6fd4f

HelloResource.java

package web.resources;

import web.MyApplication;
import org.glassfish.jersey.test.DeploymentContext;
import org.glassfish.jersey.test.JerseyTest;
import org.junit.Test;

import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;

public class HelloResourceTest extends JerseyTest {

    @Test
    public void testHello() throws Exception {
        String response = target("hello").request().get(String.class);
        assertThat(response, is("Hello!"));
    }

    @Override
    protected DeploymentContext configureDeployment() {
        return DeploymentContext.newInstance(MyApplication.class);
    }
}