DefaultListableBeanFactoryTests.java 文件源码

@Test
public void testRegisterExistingSingletonWithNameOverriding() {
    DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
    Properties p = new Properties();
    p.setProperty("test.(class)", TestBean.class.getName());
    p.setProperty("test.name", "Tony");
    p.setProperty("test.age", "48");
    p.setProperty("test.spouse(ref)", "singletonObject");
    (new PropertiesBeanDefinitionReader(lbf)).registerBeanDefinitions(p);
    lbf.registerBeanDefinition("singletonObject", new RootBeanDefinition(PropertiesFactoryBean.class));
    Object singletonObject = new TestBean();
    lbf.registerSingleton("singletonObject", singletonObject);
    lbf.preInstantiateSingletons();

    assertTrue(lbf.isSingleton("singletonObject"));
    assertEquals(TestBean.class, lbf.getType("singletonObject"));
    TestBean test = (TestBean) lbf.getBean("test");
    assertEquals(singletonObject, lbf.getBean("singletonObject"));
    assertEquals(singletonObject, test.getSpouse());

    Map<?, ?>  beansOfType = lbf.getBeansOfType(TestBean.class, false, true);
    assertEquals(2, beansOfType.size());
    assertTrue(beansOfType.containsValue(test));
    assertTrue(beansOfType.containsValue(singletonObject));

    beansOfType = lbf.getBeansOfType(null, false, true);

    Iterator<String> beanNames = lbf.getBeanNamesIterator();
    assertEquals("test", beanNames.next());
    assertEquals("singletonObject", beanNames.next());
    assertFalse(beanNames.hasNext());
    assertEquals(2, beansOfType.size());

    assertTrue(lbf.containsSingleton("test"));
    assertTrue(lbf.containsSingleton("singletonObject"));
    assertTrue(lbf.containsBeanDefinition("test"));
    assertTrue(lbf.containsBeanDefinition("singletonObject"));
}