Unable to test controller using Action.async

Question

I\'m trying to test controller, which is using new Action.async. Following documentation I have excluded part under controller I want to test to separate trait

Answer 1

For me works this:

import concurrent._
import play.api.libs.json._
import play.api.mvc.{SimpleResult, Results, Controller, Action}
import play.api.test._
import ExecutionContext.Implicits.global

trait UserController {
  this: Controller =>
  def index() = Action {
    Ok("index")
  }

  def register() = Action.async(parse.json) {
    request =>
      future(Ok("register: " + request.body))
  }
}

object UsersControllerSpec extends PlaySpecification with Results {

  class TestController() extends Controller with UserController

  "register action" should {
    "should be valid" in {
      val controller = new TestController()
      val request = FakeRequest().withBody(Json.obj("a" -> JsString("A"), "b" -> JsString("B")))
      val result: Future[SimpleResult] = controller.register()(request)
      /* assertions */
      contentAsString(result) === """register: {"a":"A","b":"B"}"""
    }
  }
}