如果测试失败，如何配置ScalaTest以中止套件？

Question

我正在使用ScalaTest 2.1.4和SBT 0.13.5。 我有一些长期运行的测试套件，如果单个测试失败可能需要很长时间才能完成（多JVM Akka测试）。 如果其中任何一个失败，我希望整个套件中止，否则套件可能需要很长时间才能完成，特别是在我们的CI服务器上。

如果套件中的任何测试失败，如何配置ScalaTest以中止套件？

Answer 1

如果您只需要取消与同一规格/套件/测试中的测试失败的测试，您可以使用scalatest中的CancelAfterFailure混合。 如果你想在全球取消它们，例如：

import org.scalatest._


object CancelGloballyAfterFailure {
  @volatile var cancelRemaining = false
}

trait CancelGloballyAfterFailure extends SuiteMixin { this: Suite =>
  import CancelGloballyAfterFailure._

  abstract override def withFixture(test: NoArgTest): Outcome = {
    if (cancelRemaining)
      Canceled("Canceled by CancelGloballyAfterFailure because a test failed previously")
    else
      super.withFixture(test) match {
        case failed: Failed =>
          cancelRemaining = true
          failed
        case outcome => outcome
      }
  }

  final def newInstance: Suite with OneInstancePerTest = throw new UnsupportedOperationException
}

class Suite1 extends FlatSpec with CancelGloballyAfterFailure {

  "Suite1" should "fail in first test" in {
    println("Suite1 First Test!")
    assert(false)
  }

  it should "skip second test" in {
    println("Suite1 Second Test!")
  }

}

class Suite2 extends FlatSpec with CancelGloballyAfterFailure {

  "Suite2" should "skip first test" in {
    println("Suite2 First Test!")
  }

  it should "skip second test" in {
    println("Suite2 Second Test!")
  }

}

Answer 2

谢谢Eugene; 这是我的进步：

trait TestBase extends FunSuite {
  import TestBase._

  override def withFixture(test: NoArgTest): Outcome = {
    if (aborted) Canceled(s"Canceled because $explanation")
    else super.withFixture(test)
  }

  def abort(text: String = "one of the tests failed"): Unit = {
    aborted = true
    explanation = text
  }
}

object TestBase {
  @volatile var aborted = false
  @volatile var explanation = "nothing happened"
}

我想知道是否可以在不使用var的情况下完成。