DefaultListableBeanFactoryTests.java 文件源码

@Test
public void testAutowireBeanByTypeWithTwoPrimaryCandidates() {
    DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
    RootBeanDefinition bd = new RootBeanDefinition(TestBean.class);
    bd.setPrimary(true);
    RootBeanDefinition bd2 = new RootBeanDefinition(TestBean.class);
    bd2.setPrimary(true);
    lbf.registerBeanDefinition("test", bd);
    lbf.registerBeanDefinition("spouse", bd2);

    try {
        lbf.autowire(DependenciesBean.class, AutowireCapableBeanFactory.AUTOWIRE_BY_TYPE, true);
        fail("Should have thrown UnsatisfiedDependencyException");
    }
    catch (UnsatisfiedDependencyException ex) {
        // expected
        assertNotNull("Exception should have cause", ex.getCause());
        assertEquals("Wrong cause type", NoUniqueBeanDefinitionException.class, ex.getCause().getClass());
    }
}