/*
* 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.boot.autoconfigure.freemarker;
import java.io.File;
import java.io.StringWriter;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.springframework.boot.test.rule.OutputCapture;
import org.springframework.boot.test.util.EnvironmentTestUtils;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.mock.web.MockServletContext;
import org.springframework.test.util.ReflectionTestUtils;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.resource.ResourceUrlEncodingFilter;
import org.springframework.web.servlet.support.RequestContext;
import org.springframework.web.servlet.view.AbstractTemplateViewResolver;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;
import org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver;
import static org.assertj.core.api.Assertions.assertThat;
import static org.hamcrest.Matchers.containsString;
/**
* Tests for {@link FreeMarkerAutoConfiguration}.
*
* @author Andy Wilkinson
* @author Kazuki Shimizu
*/
public class FreeMarkerAutoConfigurationTests {
@Rule
public OutputCapture output = new OutputCapture();
private AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
@Before
public void setupContext() {
this.context.setServletContext(new MockServletContext());
}
@After
public void close() {
if (this.context != null) {
this.context.close();
}
}
@Test
public void defaultConfiguration() {
registerAndRefreshContext();
assertThat(this.context.getBean(FreeMarkerViewResolver.class)).isNotNull();
assertThat(this.context.getBean(FreeMarkerConfigurer.class)).isNotNull();
}
@Test
public void nonExistentTemplateLocation() throws Exception {
registerAndRefreshContext("spring.freemarker.templateLoaderPath:"
+ "classpath:/does-not-exist/,classpath:/also-does-not-exist");
this.output.expect(containsString("Cannot find template location"));
}
@Test
public void emptyTemplateLocation() {
new File("target/test-classes/templates/empty-directory").mkdir();
registerAndRefreshContext("spring.freemarker.templateLoaderPath:"
+ "classpath:/templates/empty-directory/");
}
@Test
public void nonExistentLocationAndEmptyLocation() {
new File("target/test-classes/templates/empty-directory").mkdir();
registerAndRefreshContext("spring.freemarker.templateLoaderPath:"
+ "classpath:/does-not-exist/,classpath:/templates/empty-directory/");
}
@Test
public void defaultViewResolution() throws Exception {
registerAndRefreshContext();
MockHttpServletResponse response = render("home");
String result = response.getContentAsString();
assertThat(result).contains("home");
assertThat(response.getContentType()).isEqualTo("text/html;charset=UTF-8");
}
@Test
public void customContentType() throws Exception {
registerAndRefreshContext("spring.freemarker.contentType:application/json");
MockHttpServletResponse response = render("home");
String result = response.getContentAsString();
assertThat(result).contains("home");
assertThat(response.getContentType()).isEqualTo("application/json;charset=UTF-8");
}
@Test
public void customPrefix() throws Exception {
registerAndRefreshContext("spring.freemarker.prefix:prefix/");
MockHttpServletResponse response = render("prefixed");
String result = response.getContentAsString();
assertThat(result).contains("prefixed");
}
@Test
public void customSuffix() throws Exception {
registerAndRefreshContext("spring.freemarker.suffix:.freemarker");
MockHttpServletResponse response = render("suffixed");
String result = response.getContentAsString();
assertThat(result).contains("suffixed");
}
@Test
public void customTemplateLoaderPath() throws Exception {
registerAndRefreshContext(
"spring.freemarker.templateLoaderPath:classpath:/custom-templates/");
MockHttpServletResponse response = render("custom");
String result = response.getContentAsString();
assertThat(result).contains("custom");
}
@Test
public void disableCache() {
registerAndRefreshContext("spring.freemarker.cache:false");
assertThat(this.context.getBean(FreeMarkerViewResolver.class).getCacheLimit())
.isEqualTo(0);
}
@Test
public void allowSessionOverride() {
registerAndRefreshContext("spring.freemarker.allow-session-override:true");
AbstractTemplateViewResolver viewResolver = this.context
.getBean(FreeMarkerViewResolver.class);
assertThat(ReflectionTestUtils.getField(viewResolver, "allowSessionOverride"))
.isEqualTo(true);
}
@SuppressWarnings("deprecation")
@Test
public void customFreeMarkerSettings() {
registerAndRefreshContext("spring.freemarker.settings.boolean_format:yup,nope");
assertThat(this.context.getBean(FreeMarkerConfigurer.class).getConfiguration()
.getSetting("boolean_format")).isEqualTo("yup,nope");
}
@Test
public void renderTemplate() throws Exception {
registerAndRefreshContext();
FreeMarkerConfigurer freemarker = this.context
.getBean(FreeMarkerConfigurer.class);
StringWriter writer = new StringWriter();
freemarker.getConfiguration().getTemplate("message.ftl").process(this, writer);
assertThat(writer.toString()).contains("Hello World");
}
@Test
public void renderNonWebAppTemplate() throws Exception {
AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(
FreeMarkerAutoConfiguration.class);
try {
freemarker.template.Configuration freemarker = context
.getBean(freemarker.template.Configuration.class);
StringWriter writer = new StringWriter();
freemarker.getTemplate("message.ftl").process(this, writer);
assertThat(writer.toString()).contains("Hello World");
}
finally {
context.close();
}
}
@Test
public void registerResourceHandlingFilterDisabledByDefault() throws Exception {
registerAndRefreshContext();
assertThat(this.context.getBeansOfType(ResourceUrlEncodingFilter.class))
.isEmpty();
}
@Test
public void registerResourceHandlingFilterOnlyIfResourceChainIsEnabled()
throws Exception {
registerAndRefreshContext("spring.resources.chain.enabled:true");
assertThat(this.context.getBean(ResourceUrlEncodingFilter.class)).isNotNull();
}
private void registerAndRefreshContext(String... env) {
EnvironmentTestUtils.addEnvironment(this.context, env);
this.context.register(FreeMarkerAutoConfiguration.class);
this.context.refresh();
}
public String getGreeting() {
return "Hello World";
}
private MockHttpServletResponse render(String viewName) throws Exception {
FreeMarkerViewResolver resolver = this.context
.getBean(FreeMarkerViewResolver.class);
View view = resolver.resolveViewName(viewName, Locale.UK);
assertThat(view).isNotNull();
HttpServletRequest request = new MockHttpServletRequest();
request.setAttribute(RequestContext.WEB_APPLICATION_CONTEXT_ATTRIBUTE,
this.context);
MockHttpServletResponse response = new MockHttpServletResponse();
view.render(null, request, response);
return response;
}
}