@Test
public void testCreateBeanFails() {
DefaultBeanFactory factory = new DefaultBeanFactory();
try {
SmallBean bean = (SmallBean) factory.createBean(SmallBean.class);
fail();
} catch (BeanCreationException e) {
assertEquals(InstantiationException.class, e.getCause().getClass());
}
}
@Test
public void testPrototype() throws Exception {
// 1.创建Bean工厂
DefaultBeanFactory bf = new DefaultBeanFactory();
// 2.创建原型 Bean定义
BeanDefinition bd = new BeanDefinition();
bd.setId("bean");
bd.setScope(BeanDefinition.SCOPE_PROTOTYPE);
bd.setClazz(HelloImpl2.class.getName());
bf.registerBeanDefinition(bd);
// 对于原型Bean每次应该返回一个全新的Bean
System.out.println(bf.getBean("bean") != bf.getBean("bean"));
}
@Test
public void testSingleton() throws Exception {
// 1.创建Bean工厂
DefaultBeanFactory bf = new DefaultBeanFactory();
// 2.创建单例 Bean定义
BeanDefinition bd = new BeanDefinition();
bd.setId("bean");
bd.setScope(BeanDefinition.SCOPE_SINGLETON);
bd.setClazz(HelloImpl2.class.getName());
bf.registerBeanDefinition(bd);
// 对于单例Bean应该返回同一个Bean
System.out.println(bf.getBean("bean") == bf.getBean("bean"));
}
@Test
public void testCreateBeanOK() throws BeanCreationException {
DefaultBeanFactory factory = new DefaultBeanFactory();
Order order = (Order) factory.createBean(Order.class);
assertNotNull(order);
}