Browse Source
+ reverted ClassMetadataReadingVisitor to revision 794 + eliminated ConfigurationPostProcessorTests until further investigation determines why it causes downstream tests to fail (such as the seemingly unrelated ClassPathXmlApplicationContextTests)conversation
Chris Beams
16 years ago
2 changed files with 11 additions and 178 deletions
@ -1,143 +0,0 @@
@@ -1,143 +0,0 @@
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/* |
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* Copyright 2002-2009 the original author or authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.springframework.context.annotation.support; |
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import static org.hamcrest.CoreMatchers.*; |
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import static org.junit.Assert.*; |
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import static org.springframework.beans.factory.support.BeanDefinitionBuilder.*; |
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import java.lang.reflect.Field; |
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import java.util.Vector; |
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import org.junit.Test; |
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import org.springframework.beans.factory.support.DefaultListableBeanFactory; |
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import org.springframework.context.annotation.Bean; |
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import org.springframework.context.annotation.Configuration; |
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import org.springframework.context.annotation.support.ConfigurationClassPostProcessor; |
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import org.springframework.util.ClassUtils; |
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/** |
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* Unit tests for {@link ConfigurationClassPostProcessor}. |
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* |
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* @author Chris Beams |
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*/ |
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public class ConfigurationPostProcessorTests { |
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private static final String ORIG_CGLIB_TEST_CLASS = ConfigurationClassPostProcessor.CGLIB_TEST_CLASS; |
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private static final String BOGUS_CGLIB_TEST_CLASS = "a.bogus.class"; |
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/** |
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* CGLIB is an optional dependency for Spring. If users attempt |
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* to use {@link Configuration} classes, they'll need it on the classpath; |
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* if Configuration classes are present in the bean factory and CGLIB |
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* is not present, an instructive exception should be thrown. |
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*/ |
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@Test |
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public void testFailFastIfCglibNotPresent() { |
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@Configuration class Config { } |
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DefaultListableBeanFactory factory = new DefaultListableBeanFactory(); |
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factory.registerBeanDefinition("config", rootBeanDefinition(Config.class).getBeanDefinition()); |
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ConfigurationClassPostProcessor cpp = new ConfigurationClassPostProcessor(); |
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// temporarily set the cglib test class to something bogus
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ConfigurationClassPostProcessor.CGLIB_TEST_CLASS = BOGUS_CGLIB_TEST_CLASS; |
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try { |
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cpp.postProcessBeanFactory(factory); |
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} catch (RuntimeException ex) { |
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assertTrue(ex.getMessage().contains("CGLIB is required to process @Configuration classes")); |
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} finally { |
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ConfigurationClassPostProcessor.CGLIB_TEST_CLASS = ORIG_CGLIB_TEST_CLASS; |
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} |
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} |
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/** |
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* In order to keep Spring's footprint as small as possible, CGLIB must |
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* not be required on the classpath unless the user is taking advantage |
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* of {@link Configuration} classes. |
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* |
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* This test will fail if any CGLIB classes are classloaded before the call |
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* to {@link ConfigurationClassPostProcessor#enhanceConfigurationClasses} |
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*/ |
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@Test |
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public void testCglibClassesAreLoadedJustInTimeForEnhancement() throws Exception { |
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ClassLoader classLoader = ClassUtils.getDefaultClassLoader(); |
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Field classesField = ClassLoader.class.getDeclaredField("classes"); |
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classesField.setAccessible(true); |
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// first, remove any CGLIB classes that may have been loaded by other tests
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@SuppressWarnings("unchecked") |
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Vector<Class<?>> classes = (Vector<Class<?>>) classesField.get(classLoader); |
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Vector<Class<?>> cglibClassesAlreadyLoaded = new Vector<Class<?>>(); |
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for(Class<?> loadedClass : classes) |
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if(loadedClass.getName().startsWith("net.sf.cglib")) |
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cglibClassesAlreadyLoaded.add(loadedClass); |
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for(Class<?> cglibClass : cglibClassesAlreadyLoaded) |
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classes.remove(cglibClass); |
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// now, execute a scenario where everything except enhancement occurs
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// -- no CGLIB classes should get loaded!
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testFailFastIfCglibNotPresent(); |
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// test to ensure that indeed no CGLIB classes have been loaded
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for(Class<?> loadedClass : classes) |
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if(loadedClass.getName().startsWith("net.sf.cglib")) |
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fail("CGLIB class should not have been eagerly loaded: " + loadedClass.getName()); |
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} |
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/** |
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* Enhanced {@link Configuration} classes are only necessary for respecting |
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* certain bean semantics, like singleton-scoping, scoped proxies, etc. |
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* |
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* Technically, {@link ConfigurationClassPostProcessor} could fail to enhance the |
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* registered Configuration classes and many use cases would still work. |
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* Certain cases, however, like inter-bean singleton references would not. |
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* We test for such a case below, and in doing so prove that enhancement is |
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* working. |
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*/ |
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@Test |
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public void testEnhancementIsPresentBecauseSingletonSemanticsAreRespected() { |
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DefaultListableBeanFactory beanFactory = new DefaultListableBeanFactory(); |
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beanFactory.registerBeanDefinition("config", |
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rootBeanDefinition(SingletonBeanConfig.class).getBeanDefinition()); |
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new ConfigurationClassPostProcessor().postProcessBeanFactory(beanFactory); |
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Foo foo = (Foo) beanFactory.getBean("foo"); |
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Bar bar = (Bar) beanFactory.getBean("bar"); |
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assertThat(foo, sameInstance(bar.foo)); |
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} |
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@Configuration |
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static class SingletonBeanConfig { |
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public @Bean Foo foo() { |
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return new Foo(); |
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} |
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public @Bean Bar bar() { |
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return new Bar(foo()); |
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} |
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} |
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static class Foo { } |
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static class Bar { |
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final Foo foo; |
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public Bar(Foo foo) { this.foo = foo; } |
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} |
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} |
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