@Autowired与JUnit测试

Question

我使用JUnit，但有些测试有一些问题，这些测试在Spring bean中有@Autowired注释，当我引用它们时，@Autowired的bean总是为空。

     public class Test {

                 protected ApplicationContext ac;

                 @Before
                 public void setUp() {
                     ac = new FileSystemXmlApplicationContext("classpath:config/applicationContext.xml"
                     "classpath:config/test-datasources.xml");
                 }

                 @Test
                 public void testRun() throws Exception {
                        IManager manager =  (IManager)this.ac.getBean("manager");
                        manager.doSomething();
                 }
    }

    @Service
    public class Manager implements IManager {

            public boolean doSomething() throws Exception {
                 ParametersJCSCache parametersJCSCache = new ParametersJCSCache();
                 String paramValue = parametersJCSCache.getParameter("XPTO");
                 ...
            }
    }

    public class ParametersJCSCache extends SpringBeanAutowiringSupport {

          @Autowired
          private IParameterManager parameterManager;  //THIS IS NULL
    }

Answer 1

尝试使用spring runner来运行单元测试。

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:config/applicationContext.xml",
                 "classpath:config/test-datasources.xml"})
public class MyTest {

   @Autowired private IManager manager;

   @Test public void someTest() {
     assertNotNull(manager);
   }
}

它将只加载配置一次，并在需要时加载，它将自动激活junit类