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JUnit 使用 StepScopeTestExecutionListener.class 对 Step 范围的 Bean 进行测试:仍然得到“未注册 Scope”

[英]JUnit test for a Step scoped Bean using StepScopeTestExecutionListener.class : Still getting “No Scope registered”

我正在尝试为“步骤”范围的 bean 编写一个独立的单元测试用例。 我之前发布了这个问题,并了解我需要使用StepScopeTestExecutionListener为我的单元测试创建一个步骤 scope; 但是,即使在使用StepScopeTestExecutionListener之后,我仍然会收到以下异常:

Caused by: java.lang.IllegalStateException: No Scope registered for scope name 'step'
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:343)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)

我的联合

@TestExecutionListeners({ StepScopeTestExecutionListener.class,DependencyInjectionTestExecutionListener.class  })
@RunWith(SpringJUnit4ClassRunner.class)
@PropertySource("classpath:properties/common.properties")
@ContextConfiguration(locations = { "/spring/common-context.xml" })
public class ConfigDAOImplTest {

    @Autowired
    private ConfigDAOImpl configDAO;

    @Spy
    private ContextParamDAO contextParamDAO = new ContextParamDAOImpl();

    private static final String SCHEMA_CONFIG = "classpath:data/CONFIG_SCHEMA.sql";
    private static final String DATA_CONFIG = "classpath:data/CONFIG_DATA.sql";

    @Before
    public void init() {
        MockitoAnnotations.initMocks(this);

        DataSource dataSource = new EmbeddedDatabaseBuilder()
                .setType(EmbeddedDatabaseType.H2)
                .addScript(SCHEMA_CONFIG)
                .addScript(DATA_CONFIG)
                .build();

        JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);

        //override the jdbcTemplate for the test case    
        configDAO.setJdbcTemplate(jdbcTemplate);
        configDAO.setContextParamDAO(contextParamDAO);


    }

    public StepExecution getStepExecution() {

        JobParametersBuilder jobParametersBuilder = new JobParametersBuilder();
        jobParametersBuilder.addString("test", "test");
        JobParameters jobParameters = jobParametersBuilder.toJobParameters();

        JobInstance jobInstance = new JobInstance(12345L,"testJob");
        JobExecution jobExecution = new JobExecution(jobInstance,jobParameters);

        StepExecution execution = 
        MetaDataInstanceFactory.createStepExecution(jobExecution,"step",11245L);
        execution.getExecutionContext().putString("input.data", "foo,bar,spam");
        return execution;
    }
}

我可以确认当我在调试模式下运行单元测试时确实调用了getStepExecution ,并在此方法上设置了断点。

问:为什么我的 JUnit 的步骤 scope 仍未初始化?

注意:在不相关的说明中,我在getStepExecution JobExecution不是使用MetaDataInstanceFactory.createJobExecution的原因是因为某些奇怪的原因,编译器能够找到createJobExecution方法,但在运行时找不到该方法。 I used the -verbose:class flag and can confirm that there is only one jar from where the MetaDataInstanceFactory class gets loaded and that jar contains the required method as well. 我假设手动创建JobExecution实例不应该是我的问题的根本原因。

该错误甚至在加载您的测试之前发生,因为您的common-context.xml文件中没有定义步骤 scope bean。 由于您没有在该文件中使用批处理命名空间,因此您需要手动声明步骤 scope。 这是文档(3.0.10)的摘录:

Because it is not part of the Spring container by default, 
the scope must be added explicitly, either by using the batch namespace
or by including a bean definition explicitly for the StepScope (but not both)

将以下内容添加到您的应用程序上下文中应该可以解决问题:

<bean class="org.springframework.batch.core.scope.StepScope">
   <property name="proxyTargetClass" value="true" />
</bean>

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