Question

在Axon-SpringBoot应用程序中，我有一个在其某些命令处理程序中使用注入DAO的聚合。

例如：

@Aggregate
class MyAggregate {

    @CommandHandler
    public MyAggregate (CreateMyAggregateCommand command, @Autowired MyAggregateDao dao) {

          final SomeProperty = command.getSomePoprtery();

          if (dao.findBySomeProperty(someProperty) == null) {
               AggregateLifeCycle.apply(
                     new MyAggregateCreatedEvent(command.getIdentifier(),
                                                 someProperty);
          } else {
               // Don't create, already exits with some property
               // report ...
          }
    }

}

标准测试，如

@Test
void creationSucceeds () {

    aggregateTestFixture = new AggregateTestFixture<>(MyAggregate.class);

    final CreateMyAggregateCommand command = new CreateMyAggregateCommand(...);
    final MyAggregateCreatedEvent = new MyAggregateCreatedEvent(...);

    aggregateTestFixture
            .givenNoPriorActivity()
            .when(command)
            .expectEvents(event);

}

失败了：

org.axonframework.test.FixtureExecutionException: No resource of type 
[com.xmpl.MyAggregateDao] has been registered. It is required 
for one of the handlers being executed.

我如何提供测试实施？

Answer 1

解决方案1：模拟

由于这是关于单元测试而我的问题涉及数据库调用（外部服务），只要测试仅涉及孤立的聚合行为，模拟似乎是适用的。

@Test
void creationSucceeds () {

    aggregateTestFixture = new AggregateTestFixture<>(MyAggregate.class);
    aggregateTestFixture.registerInjectableResource(
          Mockito.mock(MyAggregateDao.class));

}

解决方案2：实际注入（jUnit 5）

这个适用于我：

从this github repo

注释测试类：

@SpringBootTest(classes = {SpringTestConfig.class}) 
@ExtendWith(SpringExtension.class)
public class MyAggregateTest {

    // ...        

}

将application.properties放在src / test / resources

编写Spring Test Test，启动一个功能齐全的Spring容器：

@EnableAutoConfiguration
public class SpringTestConfig {

     // Set up whatever you need

     @Bean
     @Autowired
     MyAggregateDao myDao (DataSource dataSource) {

         // ...
     }


     @Bean
     @Autowired
     EventStorageEngine eventStorageEngine () {

         return new InMemoryEventStorageEngine();

     }

}

直接注入测试，配置AggregateTestFixture

private AggregateTestFixture<MyAggregate> aggregateTestFixture;

@Autowired
private MyAggregateDao myDao;

@BeforeEach
void beforeEach () {

    aggregateTestFixture = new AggregateTestFixture<>(MyAggregate.class);

    // We still need to register resources manually
    aggregateTestFixture.registerInjectableResource(myDao);

}

使用jUnit 4

设置一个使用jUnit 4启动Spring容器的测试配置有点不同，但那里有足够的文档。开始here

轴突测试：缺少上下文

1 个答案:

解决方案1：模拟

解决方案2：实际注入（jUnit 5）

使用jUnit 4