如何使用feeder启动gatling场景

Question

我有测试单个endpoint的简单场景。我对DSL有问题。不知道如何使用feeder启动场景。我必须先进行无用的调用才能编译它。

class GetDataSimulation extends Simulation {


  val httpProtocol = http
    .baseUrl("http://localhost:8080") // Here is the root for all relative URLs
    .header("Content-Type", "application/json")
    .header("Accept", "application/json")

  object GetData {
    val feeder = csv("data.csv").shuffle.circular
    val getData = exec(
      http("Home")
        .get("/")
    ) // first call .get("/") is useless. I've added it only to make it compile
      .pause(1.millisecond)
      .feed(feeder)  // start feeder, want to start scenario from here.
      .exec(
        http("GetData") // interpolate params using CSV feeder.
          .get("/api/v1/data?firstParam=${firstParam}&secondParam=${secondParam}") 
      )
      .pause(1)

  }

  setUp(
    constantUsers.inject(constantUsersPerSec(3).during(60.seconds))
  ).protocols(httpProtocol)

}

我怎样才能摆脱

exec(
      http("Home")
        .get("/")
    ) // first call .get("/") is useless. I've added it only to make it compile

Answer 1

feed作为顶级功能提供，类似于exec本身：

    val getData = feed(feeder)
      .exec(
        http("GetData") // interpolate params using CSV feeder.
          .get("/api/v1/data?firstParam=${firstParam}&secondParam=${secondParam}") 
      )
      .pause(1)

您可以在Feeders文档中看到它。