/*
* 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.test.testutil;
import java.io.File;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import org.junit.Test;
import org.springframework.asm.Opcodes;
import org.springframework.beans.DirectFieldAccessor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import org.springframework.core.type.AnnotationMetadata;
import org.springframework.core.type.MethodMetadata;
import org.springframework.core.type.classreading.MetadataReader;
import org.springframework.core.type.classreading.SimpleMetadataReaderFactory;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Abstract base class for {@code @Configuration} sanity checks.
*
* @author Andy Wilkinson
*/
public abstract class AbstractConfigurationClassTests {
private ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
@Test
public void allBeanMethodsArePublic() throws IOException, ClassNotFoundException {
Set<String> nonPublicBeanMethods = new HashSet<>();
for (AnnotationMetadata configurationClass : findConfigurationClasses()) {
Set<MethodMetadata> beanMethods = configurationClass
.getAnnotatedMethods(Bean.class.getName());
for (MethodMetadata methodMetadata : beanMethods) {
if (!isPublic(methodMetadata)) {
nonPublicBeanMethods.add(methodMetadata.getDeclaringClassName() + "."
+ methodMetadata.getMethodName());
}
}
}
assertThat(nonPublicBeanMethods).as("Found non-public @Bean methods").isEmpty();
}
private Set<AnnotationMetadata> findConfigurationClasses() throws IOException {
Set<AnnotationMetadata> configurationClasses = new HashSet<>();
Resource[] resources = this.resolver.getResources("classpath*:"
+ getClass().getPackage().getName().replace('.', '/') + "/**/*.class");
for (Resource resource : resources) {
if (!isTestClass(resource)) {
MetadataReader metadataReader = new SimpleMetadataReaderFactory()
.getMetadataReader(resource);
AnnotationMetadata annotationMetadata = metadataReader
.getAnnotationMetadata();
if (annotationMetadata.getAnnotationTypes()
.contains(Configuration.class.getName())) {
configurationClasses.add(annotationMetadata);
}
}
}
return configurationClasses;
}
private boolean isTestClass(Resource resource) throws IOException {
return resource.getFile().getAbsolutePath()
.contains("target" + File.separator + "test-classes");
}
private boolean isPublic(MethodMetadata methodMetadata) {
int access = (Integer) new DirectFieldAccessor(methodMetadata)
.getPropertyValue("access");
return (access & Opcodes.ACC_PUBLIC) != 0;
}
}