/*
* Copyright 2012-2017 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.boot.autoconfigure.hateoas;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import org.junit.After;
import org.junit.Test;
import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
import org.springframework.boot.autoconfigure.http.HttpMessageConvertersAutoConfiguration;
import org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration;
import org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration;
import org.springframework.boot.test.util.EnvironmentTestUtils;
import org.springframework.context.annotation.Configuration;
import org.springframework.hateoas.EntityLinks;
import org.springframework.hateoas.LinkDiscoverer;
import org.springframework.hateoas.LinkDiscoverers;
import org.springframework.hateoas.MediaTypes;
import org.springframework.hateoas.config.EnableHypermediaSupport;
import org.springframework.hateoas.config.EnableHypermediaSupport.HypermediaType;
import org.springframework.hateoas.hal.HalLinkDiscoverer;
import org.springframework.hateoas.mvc.TypeConstrainedMappingJackson2HttpMessageConverter;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.mock.web.MockServletContext;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Tests for {@link HypermediaAutoConfiguration}.
*
* @author Roy Clarkson
* @author Oliver Gierke
* @author Andy Wilkinson
*/
public class HypermediaAutoConfigurationTests {
private AnnotationConfigWebApplicationContext context;
@After
public void close() {
if (this.context != null) {
this.context.close();
}
}
@Test
public void linkDiscoverersCreated() throws Exception {
this.context = new AnnotationConfigWebApplicationContext();
this.context.setServletContext(new MockServletContext());
this.context.register(BaseConfig.class);
this.context.refresh();
LinkDiscoverers discoverers = this.context.getBean(LinkDiscoverers.class);
assertThat(discoverers).isNotNull();
LinkDiscoverer discoverer = discoverers.getLinkDiscovererFor(MediaTypes.HAL_JSON);
assertThat(HalLinkDiscoverer.class.isInstance(discoverer)).isTrue();
}
@Test
public void entityLinksCreated() throws Exception {
this.context = new AnnotationConfigWebApplicationContext();
this.context.setServletContext(new MockServletContext());
this.context.register(BaseConfig.class);
this.context.refresh();
EntityLinks discoverers = this.context.getBean(EntityLinks.class);
assertThat(discoverers).isNotNull();
}
@Test
public void doesBackOffIfEnableHypermediaSupportIsDeclaredManually() {
this.context = new AnnotationConfigWebApplicationContext();
this.context.setServletContext(new MockServletContext());
this.context.register(EnableHypermediaSupportConfig.class, BaseConfig.class);
EnvironmentTestUtils.addEnvironment(this.context,
"spring.jackson.serialization.INDENT_OUTPUT:true");
this.context.refresh();
ObjectMapper objectMapper = this.context.getBean("_halObjectMapper",
ObjectMapper.class);
assertThat(objectMapper.getSerializationConfig()
.isEnabled(SerializationFeature.INDENT_OUTPUT)).isFalse();
}
@Test
public void jacksonConfigurationIsAppliedToTheHalObjectMapper() {
this.context = new AnnotationConfigWebApplicationContext();
this.context.setServletContext(new MockServletContext());
this.context.register(BaseConfig.class);
EnvironmentTestUtils.addEnvironment(this.context,
"spring.jackson.serialization.INDENT_OUTPUT:true");
this.context.refresh();
ObjectMapper objectMapper = this.context.getBean("_halObjectMapper",
ObjectMapper.class);
assertThat(objectMapper.getSerializationConfig()
.isEnabled(SerializationFeature.INDENT_OUTPUT)).isTrue();
}
@Test
public void supportedMediaTypesOfTypeConstrainedConvertersIsCustomized() {
this.context = new AnnotationConfigWebApplicationContext();
this.context.setServletContext(new MockServletContext());
this.context.register(BaseConfig.class);
this.context.refresh();
RequestMappingHandlerAdapter handlerAdapter = this.context
.getBean(RequestMappingHandlerAdapter.class);
for (HttpMessageConverter<?> converter : handlerAdapter.getMessageConverters()) {
if (converter instanceof TypeConstrainedMappingJackson2HttpMessageConverter) {
assertThat(converter.getSupportedMediaTypes())
.contains(MediaType.APPLICATION_JSON, MediaTypes.HAL_JSON);
}
}
}
@Test
public void customizationOfSupportedMediaTypesCanBeDisabled() {
this.context = new AnnotationConfigWebApplicationContext();
this.context.setServletContext(new MockServletContext());
this.context.register(BaseConfig.class);
EnvironmentTestUtils.addEnvironment(this.context,
"spring.hateoas.use-hal-as-default-json-media-type:false");
this.context.refresh();
RequestMappingHandlerAdapter handlerAdapter = this.context
.getBean(RequestMappingHandlerAdapter.class);
for (HttpMessageConverter<?> converter : handlerAdapter.getMessageConverters()) {
if (converter instanceof TypeConstrainedMappingJackson2HttpMessageConverter) {
assertThat(converter.getSupportedMediaTypes())
.containsExactly(MediaTypes.HAL_JSON);
}
}
}
@ImportAutoConfiguration({ HttpMessageConvertersAutoConfiguration.class,
WebMvcAutoConfiguration.class, JacksonAutoConfiguration.class,
HypermediaAutoConfiguration.class })
static class BaseConfig {
}
@Configuration
@EnableHypermediaSupport(type = HypermediaType.HAL)
static class EnableHypermediaSupportConfig {
}
}