尝试使用junit 5和micronaut设置TestMongodbContainer，而不是在测试环境的随机端口上启动mongodb，它使用的是application.yml配置。
应用程序.yml

micronaut:
  application:
    name: feteBirdProductConsumer

mongodb:
  uri: "mongodb://${MONGO_HOST:localhost}:${MONGO_PORT:27017}"
  database: "FeteBird-Product"

junit测试

@MicronautTest
@Testcontainers
public class ProductListenerTest {
    private final IProductProducer iProductProducer;
    @Container
    private final MongoDBContainer mongoDBContainer = new MongoDBContainer(DockerImageName.parse("mongo:4.0.10"));

    public ProductListenerTest(IProductProducer iProductProducer) {
        this.iProductProducer = iProductProducer;
    }

    @BeforeEach
    @DisplayName("Mongo Db container starting")
    void mongoDbContainerStarting() {
        mongoDBContainer.start();
    }

    @Test
    @DisplayName("Check if Mongo db container is up")
    void checkIfMongoDbContainerIsUp() {
        Assertions.assertTrue(mongoDBContainer.isRunning());
    }

    @Test
    @DisplayName("Should search based on the name")
    void shouldSearchBasedOnTheName() {
        iProductProducer.findFreeText("string").subscribe(item -> {
            System.out.println(item);
        });
    }
}

在 shouldSearchBasedOnTheName 方法返回值来自application.yml mongodb config。
在测试环境中，我没有向mongodb插入任何值，但是该方法已经从应用程序mongodb返回了值
我想我缺少mongodb的配置，但不知道如何设置
更新

@TestInstance(TestInstance.Lifecycle.PER_CLASS)
public class ProductListenerTest implements TestPropertyProvider {
@Nonnull
    @Override
    public Map<String, String> getProperties() {
        mongoDBContainer.start();
        String address = mongoDBContainer.getHost();
        Integer port = mongoDBContainer.getFirstMappedPort();
        return CollectionUtils.mapOf(
                "MONGO_HOST", address,
                "MONGO_PORT", port
        );
    }
}

例外

com.mongodb.MongoSocketReadException: Prematurely reached end of stream