/*
* 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.web.servlet.support;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.springframework.beans.DirectFieldAccessor;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.embedded.undertow.UndertowServletWebServerFactory;
import org.springframework.boot.web.server.WebServer;
import org.springframework.boot.web.servlet.ServletContextInitializer;
import org.springframework.boot.web.servlet.server.ServletWebServerFactory;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.mock.web.MockServletContext;
import org.springframework.web.context.WebApplicationContext;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Tests for {@link SpringBootServletInitializer}.
*
* @author Phillip Webb
* @author Andy Wilkinson
*/
public class SpringBootServletInitializerTests {
@Rule
public ExpectedException thrown = ExpectedException.none();
private ServletContext servletContext = new MockServletContext();
private SpringApplication application;
@Test
public void failsWithoutConfigure() throws Exception {
this.thrown.expect(IllegalStateException.class);
this.thrown.expectMessage("No SpringApplication sources have been defined");
new MockSpringBootServletInitializer()
.createRootApplicationContext(this.servletContext);
}
@Test
public void withConfigurationAnnotation() throws Exception {
new WithConfigurationAnnotation()
.createRootApplicationContext(this.servletContext);
assertThat(this.application.getAllSources()).containsOnly(
WithConfigurationAnnotation.class, ErrorPageFilterConfiguration.class);
}
@Test
public void withConfiguredSource() throws Exception {
new WithConfiguredSource().createRootApplicationContext(this.servletContext);
assertThat(this.application.getAllSources()).containsOnly(Config.class,
ErrorPageFilterConfiguration.class);
}
@Test
public void applicationBuilderCanBeCustomized() throws Exception {
CustomSpringBootServletInitializer servletInitializer = new CustomSpringBootServletInitializer();
servletInitializer.createRootApplicationContext(this.servletContext);
assertThat(servletInitializer.applicationBuilder.built).isTrue();
}
@Test
@SuppressWarnings("rawtypes")
public void mainClassHasSensibleDefault() throws Exception {
new WithConfigurationAnnotation()
.createRootApplicationContext(this.servletContext);
Class mainApplicationClass = (Class<?>) new DirectFieldAccessor(this.application)
.getPropertyValue("mainApplicationClass");
assertThat(mainApplicationClass).isEqualTo(WithConfigurationAnnotation.class);
}
@Test
public void errorPageFilterRegistrationCanBeDisabled() throws Exception {
WebServer webServer = new UndertowServletWebServerFactory(0)
.getWebServer(new ServletContextInitializer() {
@Override
public void onStartup(ServletContext servletContext)
throws ServletException {
AbstractApplicationContext context = (AbstractApplicationContext) new WithErrorPageFilterNotRegistered()
.createRootApplicationContext(servletContext);
try {
assertThat(context.getBeansOfType(ErrorPageFilter.class))
.hasSize(0);
}
finally {
context.close();
}
}
});
try {
webServer.start();
}
finally {
webServer.stop();
}
}
@Test
public void executableWarThatUsesServletInitializerDoesNotHaveErrorPageFilterConfigured()
throws Exception {
ConfigurableApplicationContext context = new SpringApplication(
ExecutableWar.class).run();
try {
assertThat(context.getBeansOfType(ErrorPageFilter.class)).hasSize(0);
}
finally {
context.close();
}
}
@Test
public void servletContextApplicationListenerIsAdded() {
new WithConfiguredSource().createRootApplicationContext(this.servletContext);
assertThat(this.application.getListeners())
.hasAtLeastOneElementOfType(ServletContextApplicationListener.class);
}
private class MockSpringBootServletInitializer extends SpringBootServletInitializer {
@Override
protected WebApplicationContext run(SpringApplication application) {
SpringBootServletInitializerTests.this.application = application;
return null;
};
}
private class CustomSpringBootServletInitializer
extends MockSpringBootServletInitializer {
private final CustomSpringApplicationBuilder applicationBuilder = new CustomSpringApplicationBuilder();
@Override
protected SpringApplicationBuilder createSpringApplicationBuilder() {
return this.applicationBuilder;
}
@Override
protected SpringApplicationBuilder configure(
SpringApplicationBuilder application) {
return application.sources(Config.class);
}
}
@Configuration
public class WithConfigurationAnnotation extends MockSpringBootServletInitializer {
}
public class WithConfiguredSource extends MockSpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(
SpringApplicationBuilder application) {
return application.sources(Config.class);
}
}
@Configuration
public static class WithErrorPageFilterNotRegistered
extends SpringBootServletInitializer {
public WithErrorPageFilterNotRegistered() {
setRegisterErrorPageFilter(false);
}
}
@Configuration
public static class ExecutableWar extends SpringBootServletInitializer {
@Bean
public ServletWebServerFactory webServerFactory() {
return new UndertowServletWebServerFactory(0);
}
}
@Configuration
public static class Config {
}
private static class CustomSpringApplicationBuilder extends SpringApplicationBuilder {
private boolean built;
@Override
public SpringApplication build() {
this.built = true;
return super.build();
}
}
}