Question

我想为foreach ($data[0] as $key => $value) { // dd($value->name); $insert[] = [ 'name' => $value->name, 'email' => $value->email, 'phone' => $value->phone, ]; }项目设置测试环境。另外，我需要启动在Docker容器中运行的Kafka。在开始测试之前，应先启动Kafka容器。

我正在使用Scalatest，并打算在测试运行之前一次在TestFixture中启动Kafka容器。

问题是，这是在运行测试之前启动容器的推荐方法。我考虑过Docker API，但不确定，这是否正确。

Answer 1

您可以使用testcontainers-scala，它只是testcontainers的包装。

在您的build.sbt中添加：

libraryDependencies += "com.dimafeng" %% "testcontainers-scala" % "0.25.0" % "test"
libraryDependencies += "org.apache.kafka" % "kafka-clients" % "2.2.0"

然后您可以创建规范：

import com.dimafeng.testcontainers.{ForAllTestContainer, GenericContainer}
import org.apache.kafka.clients.consumer.KafkaConsumer
import org.apache.kafka.common.serialization.{StringDeserializer, StringSerializer}
import org.scalatest.FlatSpec
import org.testcontainers.containers.Network
import org.testcontainers.utility.Base58


class KafkaSpec extends FlatSpec with ForAllTestContainer {

  final val KafkaPort = 9093

  override val container = GenericContainer("confluentinc/cp-kafka").configure{ c =>
    c.withNetwork(Network.newNetwork())
    c.withNetworkAliases("kafka-" + Base58.randomString(6))
    c.withExposedPorts(KafkaPort)
    c.withEnv("KAFKA_LISTENERS", "PLAINTEXT://0.0.0.0:" + KafkaPort + ",BROKER://0.0.0.0:9092")
    c.withEnv("KAFKA_LISTENER_SECURITY_PROTOCOL_MAP", "BROKER:PLAINTEXT,PLAINTEXT:PLAINTEXT")
    c.withEnv("KAFKA_INTER_BROKER_LISTENER_NAME", "BROKER")
    c.withEnv("KAFKA_BROKER_ID", "1")
    c.withEnv("KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR", "1")
    c.withEnv("KAFKA_OFFSETS_TOPIC_NUM_PARTITIONS", "1")
    c.withEnv("KAFKA_LOG_FLUSH_INTERVAL_MESSAGES", Long.MaxValue.toString)
    c.withEnv("KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS", "0")
  }


  it should "do something" in {

    val properties = new Properties()
    properties.put("bootstrap.servers", s"${container.containerIpAddress}:$KafkaPort")
    properties.put("group.id", "test")
    properties.put("key.deserializer", classOf[StringDeserializer])
    properties.put("value.deserializer", classOf[StringDeserializer])
    properties.put("key.serializer", classOf[StringSerializer])
    properties.put("value.serializer", classOf[StringSerializer])

    val kafkaConsumer = new KafkaConsumer[String, String](properties)
    ....

  }
}

在运行测试之前如何启动Docker容器

1 个答案: