测试通过,因为它没有执行任何操作:)
省略@TestExecutionListeners
注释时,Spring会注册3个默认侦听器,其中一个称为DependencyInjectionTestExecutionListener
。该侦听器负责扫描你的测试类以查找要注入的内容,包括@Resource注释。tObj由于未定义范围,此侦听器尝试注入,但失败。
当你声明时@TestExecutionListeners({})
,你将禁止的注册DependencyInjectionTestExecutionListener
,因此该测试根本不会被tObj
注入,并且由于你的测试未在检查的存在tObj,因此该测试通过了。
修改你的测试,使其执行此操作,它将失败:
@Test
public void testBean() {
assertNotNull("tObj is null", tObj);
}
所以空着的话@TestExecutionListeners
,测试就通过了,因为什么都没发生。
现在,解决你原来的问题。如果你想尝试在测试上下文中注册请求范围,请查看的源代码WebApplicationContextUtils.registerWebApplicationScopes(),你将找到以下行:
beanfactory.registerScope(WebApplicationContext.SCOPE_REQUEST, new RequestScope());
你可以尝试一下,看看你的计划如何,但是可能会有奇怪的副作用,因为你并不是真的打算在测试中这样做。
相反,我建议改写测试,以便你不需要请求作用域的bean。@Test
如果你编写自包含的测试,这应该不难,不应该超过请求范围的Bean的生命周期。记住,不需要测试作用域机制,它是Spring的一部分,你可以假设它起作用。
Spring 3.2或更高版本的解决方案 从3.2版开始的Spring 提供了对会话/请求范围内的bean的支持,以进行集成测试。
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = TestConfig.class)
@WebAppConfiguration
public class SampleTest {
@Autowired WebApplicationContext wac;
@Autowired MockHttpServletRequest request;
@Autowired MockHttpSession session;
@Autowired MySessionBean mySessionBean;
@Autowired MyRequestBean myRequestBean;
@Test
public void requestScope() throws Exception {
assertThat(myRequestBean)
.isSameAs(request.getAttribute("myRequestBean"));
assertThat(myRequestBean)
.isSameAs(wac.getBean("myRequestBean", MyRequestBean.class));
}
@Test
public void sessionScope() throws Exception {
assertThat(mySessionBean)
.isSameAs(session.getAttribute("mySessionBean"));
assertThat(mySessionBean)
.isSameAs(wac.getBean("mySessionBean", MySessionBean.class));
}
}
使用监听器的3.2之前的Spring解决方案
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = TestConfig.class)
@TestExecutionListeners({WebContextTestExecutionListener.class,
DependencyInjectionTestExecutionListener.class,
DirtiesContextTestExecutionListener.class})
public class SampleTest {
...
}
WebContextTestExecutionListener.java
public class WebContextTestExecutionListener extends AbstractTestExecutionListener {
@Override
public void prepareTestInstance(TestContext testContext) {
if (testContext.getApplicationContext() instanceof GenericApplicationContext) {
GenericApplicationContext context = (GenericApplicationContext) testContext.getApplicationContext();
ConfigurableListablebeanfactory beanfactory = context.getbeanfactory();
beanfactory.registerScope(WebApplicationContext.SCOPE_REQUEST,
new SimpleThreadScope());
beanfactory.registerScope(WebApplicationContext.SCOPE_SESSION,
new SimpleThreadScope());
}
}
}
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = TestConfig.class, locations = "test-config.xml")
public class SampleTest {
...
}
TestConfig.java
@Configuration
@ComponentScan(...)
public class TestConfig {
@Bean
public CustomScopeConfigurer customScopeConfigurer(){
CustomScopeConfigurer scopeConfigurer = new CustomScopeConfigurer();
HashMap<String, Object> scopes = new HashMap<String, Object>();
scopes.put(WebApplicationContext.SCOPE_REQUEST,
new SimpleThreadScope());
scopes.put(WebApplicationContext.SCOPE_SESSION,
new SimpleThreadScope());
scopeConfigurer.setScopes(scopes);
return scopeConfigurer
}
或使用xml配置
test-config.xml
<bean class="org.springframework.beans.factory.config.CustomScopeConfigurer">
<property name="scopes">
<map>
<entry key="request">
<bean class="org.springframework.context.support.SimpleThreadScope"/>
</entry>
</map>
<map>
<entry key="session">
<bean class="org.springframework.context.support.SimpleThreadScope"/>
</entry>
</map>
</property>
</bean>