Question

关于如何最好地测试包含Akka Http Flow的Akka Stream的任何想法？我特别挣扎于以下方法：

def akkaHttpFlow(server: String)(implicit actorSystem: ActorSystem, actorMaterializer: ActorMaterializer) = {

  val uri = new java.net.URI(server)
  val port: Int = if( uri.getPort != -1) { uri.getPort } else { 80 }

  Http().cachedHostConnectionPool[Seq[String]](uri.getHost, port)
  .withAttributes(ActorAttributes.supervisionStrategy(decider))

}

这是测试代码

val emails = Set("tonymurphy@example.com")
val source: Source[String, NotUsed] = Source(emails)

val f = source
  .grouped(10)
  .via(requestBuilderFlow)
  .via(akkaHttpFlow)
  .map(responseHandler)
  .runForeach(println)

f.futureValue.shouldBe(Done)

它失败并出现以下错误（非意外的tbh）＆gt;＆gt;＆gt;

 The future returned an exception of type: akka.stream.StreamTcpException, with message: Tcp command [Connect(localhost:9001,None,List(),Some(10 seconds),true)] failed because of Connection refused.

是否可以在测试中嵌入akka http服务器？或者我如何最好地构建代码以便能够模拟它？

支持代码

object MyOperations extends StrictLogging {

  val requestBuilderFunc : Seq[String] => (HttpRequest, Seq[String]) = { emails : Seq[String] =>
    HttpRequest(method = HttpMethods.POST, uri = "/subscribers").withEntity(ContentTypes.`application/json`, ByteString(Json.toJson(emails).toString())) -> emails.toVector
  }

  val requestBuilderFlow : Flow[Seq[String],(HttpRequest, Seq[String]),NotUsed] = Flow[Seq[String]] map requestBuilderFunc

  val responseHandler: ((Try[HttpResponse], Seq[String])) => (HttpResponse, Seq[String]) = {
   case (responseTry, context) =>
     logger.debug(s"Response: $responseTry")
      (responseTry.get, context.asInstanceOf[Seq[String]])
  }
}

我不得不承认我正在努力解决如何将我的scala应用程序组织成对象，特征，类，高阶函数等并测试它们

Answer 1

您要做的是使用依赖注入之类的东西来注入CASE WHEN SUBSTRING([COUNTRY_CODE_NEW], 6,2) = '16' AND IS NOT NULL THEN 'ALBANIA'。

在生产中，流程将来自akka http，但在测试中，您可以自己模拟它以返回您需要的任何内容。

测试包含Akka Http cachedHostConnectionPool流的Akka Stream

1 个答案: