/*
* Copyright 2014 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.core.support;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
import static org.springframework.data.rest.core.support.DomainObjectMerger.NullHandlingPolicy.*;
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.ConfigurableApplicationContext;
import org.springframework.core.convert.support.DefaultConversionService;
import org.springframework.data.repository.support.Repositories;
import org.springframework.data.rest.core.domain.jpa.JpaRepositoryConfig;
import org.springframework.data.rest.core.domain.jpa.Person;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
/**
* Integration tests for {@link DomainObjectMerger}.
*
* @author Greg Turnquist
* @author Oliver Gierke
*/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = JpaRepositoryConfig.class)
public class DomainObjectMergerTests {
@Autowired ConfigurableApplicationContext context;
DomainObjectMerger merger;
@Before
public void setUp() {
this.merger = new DomainObjectMerger(new Repositories(context.getBeanFactory()), new DefaultConversionService());
}
/**
* @see DATAREST-130
*/
@Test
public void mergeNewValue() {
Person incoming = new Person("Bilbo", "Baggins");
Person existingDomainObject = new Person("Frodo", "Baggins");
merger.merge(incoming, existingDomainObject, APPLY_NULLS);
assertThat(existingDomainObject.getFirstName(), is(incoming.getFirstName()));
assertThat(existingDomainObject.getLastName(), is(incoming.getLastName()));
}
/**
* @see DATAREST-130
*/
@Test
public void mergeNullValue() {
Person incoming = new Person(null, null);
Person existingDomainObject = new Person("Frodo", "Baggins");
merger.merge(incoming, existingDomainObject, APPLY_NULLS);
assertThat(existingDomainObject.getFirstName(), is(incoming.getFirstName()));
assertThat(existingDomainObject.getLastName(), is(incoming.getLastName()));
}
/**
* @see DATAREST-327
*/
@Test
public void doesNotMergeEmptyCollectionsForReferences() {
Person bilbo = new Person("Bilbo", "Baggins");
Person frodo = new Person("Frodo", "Baggins");
frodo.setSiblings(Arrays.asList(bilbo));
merger.merge(new Person("Sam", null), frodo, IGNORE_NULLS);
assertThat(frodo.getSiblings(), is(not(emptyIterable())));
}
}