Karate-Gatling: Not able to use object fields inside Karate features-CodePudding

For the following Gatling simulation

class DeviceSimulation extends Simulation {

  var devices: List[Device] = List[Device]()

  before {
    // Preparing data.
    devices = DataFetch.getDevices()
  }

   // Feed device
  val devicesFeederCont: Iterator[Map[String, Device]] = Iterator.continually(devices.map(d => {
    Map("device" -> d)
  })).flatten
  val devicesFeederToKarate: ScenarioBuilder = scenario("feederDeviceToKarate").exec(karateSet("device", session => session("device").as[Device]))


  val Devices: ScenarioBuilder = scenario("Device")
    .feed(devicesFeederCont)
    .exec(devicesFeederToKarate)
    .exec(karateFeature("classpath:features/device/Devices.feature"))

  setUp(
    Devices.inject(rampUsers(5).during(5 seconds))
  ).protocols()
}

I would like to be able to inject Device object inside my feature:

Feature: Device actions

  Background:
    * url 'https://server-host'
    * print 'Device obj: ', device


  Scenario: Device actions

    Given path '/api/device/name/', device.name
    When method GET
    Then status 200

But, although for the Background print I get: c.intuit.karate - [print] Device obj: Device(1234,989898989), for the GET request I have: GET /api/device/name/com.intuit.karate.graal.JsExecutable@333d7..

I mention that Device is just a case class with two fields: case class Device(id: Int, name: String).

Is there a way to properly use objects passed from feeder inside Karate features?

CodePudding user response：

Right now we've tested only with primitive values passed into the Gatling session. It may work if you convert the data into a java.util.Map. So maybe your best bet is to write some toMap() function on your data-object. Or if you manage to emit a JSON string, there is a karate.fromString() helper that can be useful.

So please read the docs here and figure out what works: https://github.com/karatelabs/karate/tree/master/karate-gatling#gatling-session

You are most welcome to contribute code to improve the state of things.