scala - 在 Play Framework 2.4.2 中使用 scalates/specs2 测试 HttpErrorHandler

Question

我已经在 Play Framework 2.4.2 中实现了我自己的 HttpErrorHander 并且它运行得很好，但现在我希望能够使用故意抛出异常的“假 Action ”进行测试。我试过 scalatest和 specs2

import play.api.http.HttpErrorHandler
import play.api.mvc._
import play.api.mvc.Results._
import scala.concurrent._

class MyErrorHandler extends HttpErrorHandler {

  def onClientError(request: RequestHeader, statusCode: Int, message: String) = {
    Future.successful(
      Status(statusCode)("A client error occurred: " + message)
   )
  }

  def onServerError(request: RequestHeader, exception: Throwable) = {
    Future.successful(
      InternalServerError("A server error occurred: " + exception.getMessage)
    )
  }
}

到目前为止，我尝试了以下测试。我尝试调试代码，但我从不输入我的方法。 play.api.http.DefaultHttpErrorHandler的方法都没有被执行。

object ThrowableControllerSpec extends PlaySpecification with Results {

  "Example Page" should {


    "throwErrorAction should be valid" in {
       val controller = new TestController()
       val result: Future[Result] = controller.exceptionAction().apply(FakeRequest())
       //val bodyText: String = contentAsString(result)
       status(result) mustEqual INTERNAL_SERVER_ERROR
       //bodyText must be startingWith "A server error occurred:"
    }
  }
}

TestController.exceptionAction中的Action方法看起来:

def exceptionAction() = Action {
  if (true)
    throw new Exception("error")
  else
    Ok("")
}

第二次尝试:

class ApplicationSpec extends Specification {
  "Application" should {

  "sent 500 on server error" in new WithApplication {
   route(FakeRequest(GET, "/exception")) must beSome.which(status(_) == INTERNAL_SERVER_ERROR)
   }

  }
}

以及 /exception的路线

GET        /exception               controllers.TestController.exceptionAction

我还在 application.conf中添加了 play.http.errorHandler .但正如我所说，这是有效的，但我无法对其进行测试。测试总是失败，并在 exceptionAction 中给出异常.

先感谢您

Answer 1

如果你使用的是 Specs2，试试这个

await(controller.exceptionAction()(FakeRequest())) must throwA[Throwable] // or any error you want to test against

请参阅这些链接。

https://twitter.github.io/scala_school/specs.html

http://www.scalatest.org/user_guide/using_assertions (用于 ScalaTest)

http://www.scalatest.org/getting_started_with_fun_suite

希望这可以帮助!