scala - 如何为 Play 框架过滤器编写测试？

Question

我为我的 Play 应用程序编写了一个过滤器:

object MyFilter {
  def apply() = new MyFilter()
}

class MyFilter extends EssentialFilter {
  def apply(next: EssentialAction) = new EssentialAction {
    def apply(requestHeader: RequestHeader) = {

      requestHeader.cookies.get("myCookie") match {
        case Some(cookie) => {
          requestHeader.session + ("importantValue", cookie.value)
          next(requestHeader)
        }
        case None => {
          val importantValue = ... // retrieve the value from somewhere
          requestHeader.session + ("importantValue", importantValue)
          next(requestHeader).map(_.withCookies(Cookie("importantValue", value)))
      }

    }
  }
}

Play 文档中有很多关于如何编写测试的示例，但我不知道如何对 MyFilter 进行单元测试。有人可以帮我一点吗？

谢谢

托尔本

Answer 1

Play Framework 源代码显示了过滤器的测试。 例如:

val filter = SecurityHeadersFilter()
// Play.current is set at this point...
val rh = FakeRequest()
val action = Action(Ok("success"))
val result = filter(action)(rh).run()

header(X_FRAME_OPTIONS_HEADER, result) must beSome("DENY")

取自这里SecurityHeadersFilterSpec.scala