/*
* Copyright 2002-2016 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.test.context.junit4.aci.annotation;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContextInitializer;
import org.springframework.context.annotation.AnnotatedBeanDefinitionReader;
import org.springframework.context.support.GenericApplicationContext;
import org.springframework.core.annotation.AliasFor;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.context.junit4.aci.annotation.InitializerConfiguredViaMetaAnnotationTests.ComposedContextConfiguration;
import org.springframework.test.context.support.AnnotationConfigContextLoader;
import static org.junit.Assert.assertEquals;
/**
* Integration test that demonstrates how to register one or more {@code @Configuration}
* classes via an {@link ApplicationContextInitializer} in a composed annotation so
* that certain {@code @Configuration} classes are always registered whenever the composed
* annotation is used, even if the composed annotation is used to declare additional
* {@code @Configuration} classes.
*
* <p>This class has been implemented in response to the following Stack Overflow question:
* <a href="http://stackoverflow.com/questions/35733344/can-contextconfiguration-in-a-custom-annotation-be-merged">
* Can {@code @ContextConfiguration} in a custom annotation be merged?</a>
*
* @author Sam Brannen
* @since 4.3
*/
@RunWith(SpringRunner.class)
@ComposedContextConfiguration(BarConfig.class)
public class InitializerConfiguredViaMetaAnnotationTests {
@Autowired
String foo;
@Autowired
String bar;
@Autowired
List<String> strings;
@Test
public void beansFromInitializerAndComposedAnnotation() {
assertEquals(2, strings.size());
assertEquals("foo", foo);
assertEquals("bar", bar);
}
static class FooConfigInitializer implements ApplicationContextInitializer<GenericApplicationContext> {
@Override
public void initialize(GenericApplicationContext applicationContext) {
new AnnotatedBeanDefinitionReader(applicationContext).register(FooConfig.class);
}
}
@ContextConfiguration(loader = AnnotationConfigContextLoader.class, initializers = FooConfigInitializer.class)
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
@interface ComposedContextConfiguration {
@AliasFor(annotation = ContextConfiguration.class, attribute = "classes")
Class<?>[] value() default {};
}
}