我想对连接到React式mongodb的spring应用程序进行集成测试。但是经过测试，数据不会回滚。
mongo配置

@AllArgsConstructor
@Configuration
@EnableTransactionManagement
@EnableReactiveMongoRepositories
public class MongoConfiguration extends AbstractReactiveMongoConfiguration {

    private MongoProperties mongoProperties;

    @Bean
    public ReactiveMongoTransactionManager transactionManager(ReactiveMongoDatabaseFactory dbFactory) {
        return new ReactiveMongoTransactionManager(dbFactory);
    }

    @Override
    protected String getDatabaseName() {
        return mongoProperties.getDatabase();
    }

    @Override
    protected void configureClientSettings(Builder builder) {
        ConnectionString connectionString = new ConnectionString(mongoProperties.getUri());
        builder.applyConnectionString(connectionString);
    }

    @Override
    protected boolean autoIndexCreation() {
        return mongoProperties.isAutoIndexCreation();
    }

    @Override
    protected void configureConverters(MongoConverterConfigurationAdapter converterConfigurationAdapter) {
        converterConfigurationAdapter.registerConverter(new OffsetDateTimeReadConverter());
        converterConfigurationAdapter.registerConverter(new OffsetDateTimeWriteConverter());
    }

}

这是我的样品服务

@RequiredArgsConstructor
@Service
public class SampleServiceImpl implements SampleService {

    @NonNull
    private SampleRepository sampleRepository;

    @Transactional
    public Mono<Sample> save(Sample sample) {
        return sampleRepository.save(sample);
    }

}

集成测试

@SpringBootTest
@ActiveProfiles("test")
public class SampleServiceTest {

    @Autowired
    private SampleService sampleService;

    @Rollback
    @Test
    public void saveTest() {
        Sample sample = new Sample();
        sampe.setName("Test");
        Mono<Sample> resultMono = sampleService.save(sample);
        StepVerifier.create(resultMono)
            .consumeNextWith(result -> {
                assertThat(result, is(samePropertyValuesAs(sample, "id")));
            })
            .verifyComplete();
    }

}

测试已成功运行，但数据不会回滚
我阅读了关于https://docs.spring.io/spring-framework/docs/current/reference/html/testing.html#integration-测试时，需要platformtransactionmanagerbean来测试事务管理。
但是reactivemongotransactionmanager没有实现。对于mongodb，只有mongotransactionmanager。我使用的是springboot2.4.4版本
然后我使用mongotransactionmanager尝试了另一个解决方案，但仍然不起作用。
这是我的测试配置

@TestConfiguration
@EnableTransactionManagement
public class MongoConfigurationIntegrationTest {

    @Bean
    @Primary
    public PlatformTransactionManager mongoTransactionManager(MongoDatabaseFactory databaseFactory) {
        return new MongoTransactionManager(databaseFactory);
    }

}

使用MongoTransactionManager的新集成测试

@SpringBootTest
@ActiveProfiles("test")
@ContextConfiguration(classes = MongoConfigurationIntegrationTest.class)
public class SampleServiceTest {

    @Autowired
    private SampleService sampleService;

    @Transactional
    @Rollback
    @Test
    public void saveTest() {
        Sample sample = new Sample();
        sampe.setName("Test");
        Mono<Sample> resultMono = sampleService.save(sample);
        StepVerifier.create(resultMono)
            .consumeNextWith(result -> {
                assertThat(result, is(samePropertyValuesAs(sample, "id")));
            })
            .verifyComplete();
    }

}

控制台日志
o、 事务上下文：开始测试上下文的事务（1）[defaulttestcontext@36b4091c
org.mongodb.driver.connection:打开的连接[connectionid{l]ocalvalue:8，东南rvervalue:211}]至localhost:27017
o、 s.t.c.transaction.transactioncontext:用于测试的回滚事务：[defaulttestcontext@36b4091c
org.mongodb.driver.connection:关闭连接[connectionid{l]ocalvalue:5，东南rvervalue:208}]至localhost:27017
日志上说事务是回滚的，但是当我检查db时数据没有回滚。
配置有问题吗？