如何配置ScalaTest以在测试失败时中止套件？

Question

我使用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。

如何在套件中的任何测试失败时将ScalaTest配置为中止套件？

Answer 1

如果您只需要取消相同规格/套件/测试的测试作为失败测试，​​则可以使用scalatest中的CancelAfterFailure混合。如果你想全局取消它们，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

谢谢尤金;这里是我的改进：

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" 
} 

不知是否可以在不使用var s内完成。