将基于Spring 3.0.0 java的IOC添加到JUnit 4.7测试中

Question

有一个文档http://static.springsource.org/spring/docs/2.5.6/reference/testing.html如何使用xml-configuration为junit测试添加IoC支持,但我找不到基于java的示例组态...

例如,我有基于java的bean:

public class AppConfig
{
    @Bean
    public Test getTest() { return new Test(); }
}

并测试:

@RunWith(SpringJUnit4ClassRunner.class)
public class IocTest
{
    @Autowired
    private Test test;

    @Test
    public void testIoc()
    {
        Assert.assertNotNull(test);
    }
}

在不使用xml-configs的情况下,我应该添加什么来启用基于java的bean到我的junit测试？

通常我使用:

new AnnotationConfigApplicationContext(AppConfig.class);

但它不适用于测试......

Answer 1

更新: Spring 3.1将支持开箱即用,请参阅Spring 3.1 M2:使用@Configuration类和配置文件进行测试.

似乎Spring尚未支持此功能.但是,它可以很容易地实现:

public class AnnotationConfigContextLoader implements ContextLoader {

    public ApplicationContext loadContext(String... locations) throws Exception {
        Class<?>[] configClasses = new Class<?>[locations.length];
        for (int i = 0; i < locations.length; i++) {
            configClasses[i] = Class.forName(locations[i]);
        }        
        return new AnnotationConfigApplicationContext(configClasses);
    }

    public String[] processLocations(Class<?> c, String... locations) {
        return locations;
    }
}

-

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(loader = AnnotationConfigContextLoader.class, 
    value = "com.sample.AppConfig")
public class IocTest {
    @Autowired
    TestSerivce service;

    @Test
    public void testIoc()
    {
        Assert.assertNotNull(service.getPredicate());
    }
}

-

@Configuration
public class ApplicationConfig
{
    ...

    @Bean
    public NotExistsPredicate getNotExistsPredicate()
    {
        return new NotExistsPredicate();
    }

    @Bean
    public TestService getTestService() {
        return new TestService();
    }
}