scala - 在 Scala 方法中自动委派给 val

Question

我正在为 Wicket 应用编写 ScalaTest FeatureSpec。我有一个 wicketTester 值，我不得不继续调用方法，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 的引用都让我失望，所以我想删除它们，以实现 DSL 必杀技...

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就像是我的类中的方法一样？

Answer 1

你试过导入吗？

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])...  
}