EmptyEntityTest.java

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package org.glassfish.jersey.tests.e2e.entity.filtering;

import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Application;

import org.glassfish.jersey.message.filtering.EntityFilteringFeature;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.test.TestProperties;
import org.glassfish.jersey.tests.e2e.entity.filtering.domain.EmptyEntity;
import org.glassfish.jersey.tests.e2e.entity.filtering.domain.NonEmptyEntity;

import org.junit.Test;

/**
 * Use-cases to check whether empty class causes problems (JERSEY-2824 reproducer).
 *
 * @author Michal Gajdos
 */
public class EmptyEntityTest extends EntityFilteringTest {

    @Path("/")
    @Consumes("entity/filtering")
    @Produces("entity/filtering")
    public static class Resource {

        @Path("nonEmptyEntity")
        @GET
        public NonEmptyEntity nonEmptyEntity() {
            return NonEmptyEntity.INSTANCE;
        }

        @Path("emptyEntity")
        @GET
        public EmptyEntity emptyEntity() {
            return new EmptyEntity();
        }
    }

    @Override
    protected Application configure() {
        enable(TestProperties.DUMP_ENTITY);
        enable(TestProperties.LOG_TRAFFIC);

        return new ResourceConfig()
                // Resources.
                .register(Resource.class)
                // Providers.
                .register(EntityFilteringFeature.class)
                .register(FilteringMessageBodyProvider.class);
    }

    @Test
    public void testNonEmptyEntity() throws Exception {
        final String fields = target("nonEmptyEntity").request().get(String.class);

        assertSameFields(fields, "value");
    }

    @Test
    public void testEmptyEntity() throws Exception {
        final String fields = target("emptyEntity").request().get(String.class);

        assertSameFields(fields, "");
    }
}