自动委托给 Scala 方法中的 val

Question

我正在为 Wicket 应用程序编写 ScalaTest FeatureSpec。我有一个 wicketTester 值，我必须继续调用方法，即：

scenario("No username and password") {
  val wicketTester = new WicketTester(app)
  given("user visits Admin home page")
  wicketTester.startPage(classOf[AdminHomePage])

  then("signin page is displayed")
  val login = wicketTester.newFormTester("signInPanel:signInForm")
  wicketTester.assertRenderedPage(classOf[SignInPage])
  ...
  when("correct username and password are entered")
  ...
  then("no login and error is displayed")
  wicketTester.assertRenderedPage(classOf[SignInPage])
  wicketTester.assertErrorMessages(Array("Field 'password' is required."))

现在所有这些对 wicketTester 的引用都让我沮丧，所以我想删除它们，旨在实现 DSL 涅槃...

scenario("No username and password") {
  val wicketTester = new WicketTester(app)
  given("user visits Admin home page")
  startPage(classOf[AdminHomePage])

  then("signin page is displayed")
  val login = wicketTester.newFormTester("signInPanel:signInForm")
  assertRenderedPage(classOf[SignInPage])...

有什么方法可以使本地方法看起来好像它们是我的类上的方法？

Answer 1

你尝试过导入吗？

scenario("No username and password") {
   val wicketTester = new WicketTester(app)
   import wicketTester._    // import wicketTester's members into scope
   given("user visits Admin home page")
   startPage(classOf[AdminHomePage])

   then("signin page is displayed")
   val login = wicketTester.newFormTester("signInPanel:signInForm")
   assertRenderedPage(classOf[SignInPage])...  
}