Java 轴突测试：缺少上下文

在Axon SpringBoot应用程序中，我有一个聚合，它在一些命令处理程序中使用注入的DAO

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 ...
          }
    }

}

一个标准的测试，比如

@Test
void creationSucceeds () {

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

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

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

}

如何提供测试实现？

解决方案1：模拟 因为这是关于单元测试的，我的问题涉及数据库调用（外部服务），所以只要测试只是关于孤立的聚合行为，模拟就似乎是适用的

@Test
void creationSucceeds () {

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

}

将application.properties放在src/test/resources中

编写启动完全运行的Spring容器的Spring测试配置：

@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);

}

private AggregateTestFixture AggregateTestFixture；
@自动连线
私用myDao myDao；
@之前
在每个（）之前无效{
aggregateTestFixture=新的aggregateTestFixture（MyAggregate.class）；
//我们仍然需要手动注册资源
aggregateTestFixture.registerInjectableResource（myDao）；
}

与JUnit4 设置使用JUnit4启动Spring容器的测试配置有点不同，但是有足够的文档。开始

@EnableAutoConfiguration
public class SpringTestConfig {

     // Set up whatever you need

     @Bean
     @Autowired
     MyAggregateDao myDao (DataSource dataSource) {

         // ...
     }


     @Bean
     @Autowired
     EventStorageEngine eventStorageEngine () {

         return new InMemoryEventStorageEngine();

     }

}

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);

}