org.springframework.data.rest.webmvc.json.PersistentEntitySerializationTests.java Source code

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Here is the source code for org.springframework.data.rest.webmvc.json.PersistentEntitySerializationTests.java

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/*
 * Copyright 2012-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.data.rest.webmvc.json;

import static org.hamcrest.MatcherAssert.*;
import static org.hamcrest.Matchers.*;

import java.util.Arrays;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.MessageSourceAccessor;
import org.springframework.context.support.StaticMessageSource;
import org.springframework.data.projection.ProjectionFactory;
import org.springframework.data.projection.SpelAwareProxyProjectionFactory;
import org.springframework.data.repository.support.Repositories;
import org.springframework.data.rest.tests.RepositoryTestsConfig;
import org.springframework.data.rest.tests.mongodb.Address;
import org.springframework.data.rest.tests.mongodb.MongoDbRepositoryConfig;
import org.springframework.data.rest.tests.mongodb.User;
import org.springframework.data.rest.tests.mongodb.User.Gender;
import org.springframework.data.rest.webmvc.PersistentEntityResource;
import org.springframework.hateoas.Link;
import org.springframework.hateoas.LinkDiscoverer;
import org.springframework.hateoas.PagedResources;
import org.springframework.hateoas.PagedResources.PageMetadata;
import org.springframework.hateoas.hal.HalLinkDiscoverer;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletWebRequest;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.jayway.jsonpath.JsonPath;

/**
 * Integration tests for entity (de)serialization.
 * 
 * @author Jon Brisbin
 * @author Greg Turnquist
 * @author Oliver Gierke
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = { MongoDbRepositoryConfig.class, RepositoryTestsConfig.class,
        PersistentEntitySerializationTests.TestConfig.class })
public class PersistentEntitySerializationTests {

    @Autowired
    ObjectMapper mapper;
    @Autowired
    Repositories repositories;

    @Configuration
    static class TestConfig extends RepositoryTestsConfig {

        @Bean
        @Override
        public ObjectMapper objectMapper() {

            ObjectMapper objectMapper = super.objectMapper();
            objectMapper.registerModule(new JacksonSerializers(
                    new EnumTranslator(new MessageSourceAccessor(new StaticMessageSource()))));
            return objectMapper;
        }
    }

    LinkDiscoverer linkDiscoverer;
    ProjectionFactory projectionFactory;

    @Before
    public void setUp() {

        RequestContextHolder.setRequestAttributes(new ServletWebRequest(new MockHttpServletRequest()));

        this.linkDiscoverer = new HalLinkDiscoverer();
        this.projectionFactory = new SpelAwareProxyProjectionFactory();
    }

    /**
     * @see DATAREST-250
     */
    @Test
    public void serializesEmbeddedReferencesCorrectly() throws Exception {

        User user = new User();
        user.address = new Address();
        user.address.street = "Street";

        PersistentEntityResource userResource = PersistentEntityResource.//
                build(user, repositories.getPersistentEntity(User.class)).//
                withLink(new Link("/users/1")).//
                build();

        PagedResources<PersistentEntityResource> persistentEntityResource = new PagedResources<PersistentEntityResource>(
                Arrays.asList(userResource), new PageMetadata(1, 0, 10));

        String result = mapper.writeValueAsString(persistentEntityResource);

        assertThat(JsonPath.read(result, "$._embedded.users[*].address"), is(notNullValue()));
    }

    /**
     * @see DATAREST-654
     */
    @Test
    public void deserializesTranslatedEnumProperty() throws Exception {
        assertThat(mapper.readValue("{ \"gender\" : \"Male\" }", User.class).gender, is(Gender.MALE));
    }
}