我正在尝试为Kafka producer编写单元测试。但是我在lateinit var embeddedKafkaBroker: EmbeddedKafkaBroker行中得到一个错误-Could not autowire. No beans of 'EmbeddedKafkaBroker' type found.
这是我的代码

@ActiveProfiles("test")
@EmbeddedKafka(
   partitions = 1,
   bootstrapServersProperty = "spring.kafka.bootstrap-servers",
   topics = arrayOf("someTopic"))
@SpringBootTest(
    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
    properties = ["kafka.schema-registry.url=mock://mock"]
)
internal class KafkaProducerServiceTest {

   @Autowired
   lateinit var embeddedKafkaBroker: EmbeddedKafkaBroker // Error line - Could not autowire. No beans of 'EmbeddedKafkaBroker' type found.

   @Autowired
   lateinit var producer: KafkaProducerService<EventKey, EventValue>

   @Test
   fun send() {
     val mockKey = mockk<EventKey>(relaxed = true)
     val mockValue = mockk<EventValue>(relaxed = true)

     producer.send(mockKey, mockValue)
   }
}

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我不太清楚这个错误的原因是什么。