在IntelliJ中运行ScalaTest时“无法加载套件类”

Question

我今天在IntelliJ中运行一个简单的TestKit测试时遇到了一些问题。测试是针对Scala代码的（我有用于Intellij的Scala插件），并且基于Ray Roestenburg的示例。

Intellij项目是使用“Maven模块”创建的，然后我将所有依赖项添加到该模块并创建了我的项目。测试位于以下地方：

缺少类:BasicActorSpec java.lang.ClassNotFoundException:BasicActorSpec at java.net.URLClassLoader$1.run(URLClassLoader.java:366)at java.net.URLClassLoader$1.run(URLClassLoader.java:355)at java.security.AccessController.doprivileged（本机方法）at java.net.URLClassLoader.findClass(URLClassLoader.java:354)at.scalatest.tools.runner$$anonfun$35.在org.scalatest.tools.runner$$$anonfun$35.在scala.collection.traversablelike$$$anonfun$1应用(runner.scala:2391)在scala.collection.traversablelike.$$anonfun$filter$1应用(runner.scala:2391)在scala.collection.immutable.list.foreach(list.scalction.traversablelike$class.filter在o处运行(runner.scala:2391)rg.scalatest.tools.runn$$anonfun$runoptionallyWithPassfailReporter$2.在org.scalatest.tools.runn$$anonfun$runoptionallyWithPassfailReporter$2.在org.scalatest.tools.runn.$$anonfun$runoptionallyWithPassfailReporter$2.在org.scalatest.tools.runner应用(runner.scala:1006)在org.scalatest.tools.runner应用gins.scala.testingsupport.scalatest.scalatestrunner.runscalateStrunner.java:144)在org.jetbrains.plugins.scala.testingsupport.scalatingsupport.scalatestrunner.main（scalateStrunner.java:35)在sun.reflect.nativeMethodAccessorImpl.invoke0（原生方法）在sun.reflect.nativeMethodAccessorImpl.invoke（com.intellij.rt.execution.application.appmain.main(appmain.java:120)

进程结束，退出代码为0

我不明白这是什么意思。我做了很多搜索，但似乎找不到答案。请注意，运行者抱怨找不到的类就是我试图测试/运行的类。basicTest.scala如下所示：

// Testing specific imports
import org.junit.runner.RunWith
import org.scalatest.junit.JUnitRunner
import org.scalatest.{ShouldMatchers, WordSpecLike, BeforeAndAfterAll}
import akka.testkit.{TestKit, DefaultTimeout, ImplicitSender}
// Actor specific imports
import akka.actor.{ActorRef, Actor, ActorSystem, Props}
// Misc. needed imports
import scala.concurrent.duration._
import com.typesafe.config.ConfigFactory


// In order to run tests in this module you need to use JUnitRunner (as per scalatest.org)
@RunWith(classOf[JUnitRunner])
class BasicActorSpec extends TestKit(ActorSystem("BasicActorSpec", ConfigFactory.parseString(BasicActorSpec.config)))
  with DefaultTimeout with ImplicitSender with WordSpecLike with ShouldMatchers with BeforeAndAfterAll {

  import BasicActorSpec._

  val echoRef = system.actorOf(Props[EchoActor])
  val forwardRef = system.actorOf(Props[ForwardActor])

  override def afterAll {
    shutdown(system)
  }


  /**
   * The actual tests...
   */
  "An EchoActor" should {
    "Respond with the same message it receives" in {
      within(500 millis) {
        echoRef ! "test"
        expectMsg("test")
      }
    }
  }

  "A Forwarding Actor" should {
    "Forward a message it receives" in {
      within(500 millis) {
        forwardRef ! "test"
        expectMsg("test")
      }
    }
  }

}

/**
 * Companion object of test class
 */
object BasicActorSpec {

  val config =
    """
      |akka {
      | loglevel = "Warning"
      |}
    """.stripMargin

  /**
   * Classes of Actors used in testing
   */
  class EchoActor extends Actor {
    def receive = {
      case msg => sender ! msg
    }
  }

  class ForwardActor(next: ActorRef) extends Actor {
    def receive = {
      case msg => next ! msg
    }
  }

}

任何关于为什么我会得到这个错误的帮助都将非常感谢。

Answer 1

运行build the Project--它帮助我解决了在试图解决另一个问题时清除缓存想法时可能发生的问题：）