/*
* Copyright 2002-2014 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.beans.factory.support;
import org.junit.Test;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.ObjectFactory;
import org.springframework.tests.sample.beans.DerivedTestBean;
import org.springframework.tests.sample.beans.TestBean;
import static org.junit.Assert.*;
/**
* @author Juergen Hoeller
* @author Chris Beams
* @since 04.07.2006
*/
public class DefaultSingletonBeanRegistryTests {
@Test
public void testSingletons() {
DefaultSingletonBeanRegistry beanRegistry = new DefaultSingletonBeanRegistry();
TestBean tb = new TestBean();
beanRegistry.registerSingleton("tb", tb);
assertSame(tb, beanRegistry.getSingleton("tb"));
TestBean tb2 = (TestBean) beanRegistry.getSingleton("tb2", new ObjectFactory<Object>() {
@Override
public Object getObject() throws BeansException {
return new TestBean();
}
});
assertSame(tb2, beanRegistry.getSingleton("tb2"));
assertSame(tb, beanRegistry.getSingleton("tb"));
assertSame(tb2, beanRegistry.getSingleton("tb2"));
assertEquals(2, beanRegistry.getSingletonCount());
String[] names = beanRegistry.getSingletonNames();
assertEquals(2, names.length);
assertEquals("tb", names[0]);
assertEquals("tb2", names[1]);
beanRegistry.destroySingletons();
assertEquals(0, beanRegistry.getSingletonCount());
assertEquals(0, beanRegistry.getSingletonNames().length);
}
@Test
public void testDisposableBean() {
DefaultSingletonBeanRegistry beanRegistry = new DefaultSingletonBeanRegistry();
DerivedTestBean tb = new DerivedTestBean();
beanRegistry.registerSingleton("tb", tb);
beanRegistry.registerDisposableBean("tb", tb);
assertSame(tb, beanRegistry.getSingleton("tb"));
assertSame(tb, beanRegistry.getSingleton("tb"));
assertEquals(1, beanRegistry.getSingletonCount());
String[] names = beanRegistry.getSingletonNames();
assertEquals(1, names.length);
assertEquals("tb", names[0]);
assertFalse(tb.wasDestroyed());
beanRegistry.destroySingletons();
assertEquals(0, beanRegistry.getSingletonCount());
assertEquals(0, beanRegistry.getSingletonNames().length);
assertTrue(tb.wasDestroyed());
}
@Test
public void testDependentRegistration() {
DefaultSingletonBeanRegistry beanRegistry = new DefaultSingletonBeanRegistry();
beanRegistry.registerDependentBean("a", "b");
beanRegistry.registerDependentBean("b", "c");
beanRegistry.registerDependentBean("c", "b");
assertTrue(beanRegistry.isDependent("a", "b"));
assertTrue(beanRegistry.isDependent("b", "c"));
assertTrue(beanRegistry.isDependent("c", "b"));
assertTrue(beanRegistry.isDependent("a", "c"));
assertFalse(beanRegistry.isDependent("c", "a"));
assertFalse(beanRegistry.isDependent("b", "a"));
assertFalse(beanRegistry.isDependent("a", "a"));
assertTrue(beanRegistry.isDependent("b", "b"));
assertTrue(beanRegistry.isDependent("c", "c"));
}
}