在Play中运行规范时，“连接被拒绝：没有进一步的信息”错误

Question

我创建了一个使用WsTestClient的规范。当我运行测试时（右键单击并选择run ScalaTest in test中的IntelliJ），我收到以下错误 - Connection refused: no further information: localhost/0:0:0:0:0:0:0:1:9190。我做错了什么？

我的测试用例是

class UserControllerSpec extends AsyncWordSpec {

  implicit val port:play.api.test.WsTestClient.Port = 9190;

    "User signup request with non-JSON body" must {
      "return  400 (Bad Request) and the validation text 'Incorrect body type. Body type must be JSON'" in {
        val request = WsTestClient.wsUrl("/ws/users/signup")
        val responseFuture = request.get()
        println("sending dummy signup up request")
        responseFuture.map(response =>{
          println("response :"+response);
          assert(response.status == play.api.http.Status.BAD_REQUEST)
        })
      }
    }
}

对我来说，问题似乎是没有服务器来响应这个客户端。但我假设Play将自己启动一些服务器。