Unit testing 用莫基托模仿阿克卡演员';s日志对象
我尝试了一些似乎可以编译但在单元测试期间抛出NullPointer异常的方法,因此我想知道如何才能潜在地克服单元测试中的限制。我有一个类似这样的类:Unit testing 用莫基托模仿阿克卡演员';s日志对象,unit-testing,scala,mockito,akka,actor,Unit Testing,Scala,Mockito,Akka,Actor,我尝试了一些似乎可以编译但在单元测试期间抛出NullPointer异常的方法,因此我想知道如何才能潜在地克服单元测试中的限制。我有一个类似这样的类: class LogWriter extends Actor{ def receive{ case x:Timing => log.info(x toString) case x:Event => log.info(x toString) case x:Any => log.warning("Improp
class LogWriter extends Actor{
def receive{
case x:Timing => log.info(x toString)
case x:Event => log.info(x toString)
case x:Any => log.warning("Improper message sent to LogWriter, %s".format(x toString))
}
}
但尝试使用Specs2和Mockito支持进行单元测试时,应遵循以下原则:
class LogWriterSpec extends Mokito with Specification{
val mockedLog = mock[Logger]
class MockedLogWriter extends LogWriter{
@transient override val log = mockedLog
}
val writer = actorOf(new MockedLogWriter).start
def testTiming = {
val message = Timing("testTiming", 15 seconds)
writer !! (message, 400)
there was one(mockedLog).info(message toString)
}
def is = "A LogWriter" ^
"should write a Timing message to log.info" ! testTiming ^
end
}
编译上述NullPointerException
中的结果时:
[akka:event-driven:dispatcher:global-10] ERROR akka.actor.Actor$ - Problem
java.lang.NullPointerException
at akka.util.Logger.warning_$qmark(Logging.scala:43)
at akka.util.Logger.warning(Logging.scala:117)
我尝试将其更改为使用一些mixin trait,它覆盖了AkkaLogging
trait的“log”对象,但编译器不允许这样做。编译器的回答是“我们不希望你犯一个不经意的错误。”啊!我想要那个“错误”
有人知道另一种方法吗?我并不拘泥于Mockito,欢迎任何建议。是一个原生的Scala模拟框架(其中包括允许模拟功能)。您可以在此处找到完整的示例:
也许它会解决你的问题