Packages

abstract class MultiNodeSpec extends TestKit with MultiNodeSpecCallbacks

Note: To be able to run tests with everything ignored or excluded by tags you must not use testconductor, or helper methods that use testconductor, from the constructor of your test class. Otherwise the controller node might be shutdown before other nodes have completed and you will see errors like: AskTimeoutException: sending to terminated ref breaks promises. Using lazy val is fine.

Source
MultiNodeSpec.scala
Type Hierarchy
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. MultiNodeSpec
  2. MultiNodeSpecCallbacks
  3. TestKit
  4. TestKitBase
  5. AnyRef
  6. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Instance Constructors

  1. new MultiNodeSpec(config: MultiNodeConfig)
  2. new MultiNodeSpec(config: MultiNodeConfig, actorSystemCreator: (Config) ⇒ ActorSystem)

    Constructor for using arbitrary logic to create the actor system used in the multi node spec (the Config passed to the creator must be used in the created actor system for the multi node tests to work)

  3. new MultiNodeSpec(myself: RoleName, _system: ActorSystem, _roles: Seq[RoleName], deployments: (RoleName) ⇒ Seq[String])

Type Members

  1. class AwaitHelper[T] extends AnyRef

Abstract Value Members

  1. abstract def initialParticipants: Int

    TO BE DEFINED BY USER: Defines the number of participants required for starting the test.

    TO BE DEFINED BY USER: Defines the number of participants required for starting the test. This might not be equals to the number of nodes available to the test.

    Must be a def:

    def initialParticipants = 5

Concrete Value Members

  1. def awaitAssert[A](a: ⇒ A, max: Duration = Duration.Undefined, interval: Duration = 100.millis): A

    Evaluate the given assert every interval until it does not throw an exception and return the result.

    Evaluate the given assert every interval until it does not throw an exception and return the result.

    If the max timeout expires the last exception is thrown.

    If no timeout is given, take it from the innermost enclosing within block.

    Note that the timeout is scaled using Duration.dilated, which uses the configuration entry "akka.test.timefactor".

    Definition Classes
    TestKitBase
  2. def awaitCond(p: ⇒ Boolean, max: Duration = Duration.Undefined, interval: Duration = 100.millis, message: String = ""): Unit

    Await until the given condition evaluates to true or the timeout expires, whichever comes first.

    Await until the given condition evaluates to true or the timeout expires, whichever comes first.

    If no timeout is given, take it from the innermost enclosing within block.

    Note that the timeout is scaled using Duration.dilated, which uses the configuration entry "akka.test.timefactor".

    Definition Classes
    TestKitBase
  3. implicit def awaitHelper[T](w: Awaitable[T]): AwaitHelper[T]

    Enrich .await() onto all Awaitables, using remaining duration from the innermost enclosing within block or QueryTimeout.

  4. def childActorOf(props: Props): ActorRef

    Spawns an actor as a child of this test actor with an auto-generated name and stopping supervisor strategy, returning the child's ActorRef.

    Spawns an actor as a child of this test actor with an auto-generated name and stopping supervisor strategy, returning the child's ActorRef.

    props

    Props to create the child actor

    Definition Classes
    TestKitBase
  5. def childActorOf(props: Props, name: String): ActorRef

    Spawns an actor as a child of this test actor with a stopping supervisor strategy, and returns the child's ActorRef.

    Spawns an actor as a child of this test actor with a stopping supervisor strategy, and returns the child's ActorRef.

    props

    Props to create the child actor

    name

    Actor name for the child actor

    Definition Classes
    TestKitBase
  6. def childActorOf(props: Props, supervisorStrategy: SupervisorStrategy): ActorRef

    Spawns an actor as a child of this test actor with an auto-generated name, and returns the child's ActorRef.

    Spawns an actor as a child of this test actor with an auto-generated name, and returns the child's ActorRef.

    props

    Props to create the child actor

    supervisorStrategy

    Strategy should decide what to do with failures in the actor.

    Definition Classes
    TestKitBase
  7. def childActorOf(props: Props, name: String, supervisorStrategy: SupervisorStrategy): ActorRef

    Spawns an actor as a child of this test actor, and returns the child's ActorRef.

    Spawns an actor as a child of this test actor, and returns the child's ActorRef.

    props

    Props to create the child actor

    name

    Actor name for the child actor

    supervisorStrategy

    Strategy should decide what to do with failures in the actor.

    Definition Classes
    TestKitBase
  8. def enterBarrier(name: String*): Unit

    Enter the named barriers in the order given.

    Enter the named barriers in the order given. Use the remaining duration from the innermost enclosing within block or the default BarrierTimeout

  9. def expectMsg[T](max: FiniteDuration, hint: String, obj: T): T

    Receive one message from the test actor and assert that it equals the given object.

    Receive one message from the test actor and assert that it equals the given object. Wait time is bounded by the given duration, with an AssertionFailure being thrown in case of timeout.

    returns

    the received object

    Definition Classes
    TestKitBase
  10. def expectMsg[T](max: FiniteDuration, obj: T): T

    Receive one message from the test actor and assert that it equals the given object.

    Receive one message from the test actor and assert that it equals the given object. Wait time is bounded by the given duration, with an AssertionFailure being thrown in case of timeout.

    returns

    the received object

    Definition Classes
    TestKitBase
  11. def expectMsg[T](obj: T): T

    Same as expectMsg(remainingOrDefault, obj), but correctly treating the timeFactor.

    Same as expectMsg(remainingOrDefault, obj), but correctly treating the timeFactor.

    Definition Classes
    TestKitBase
  12. def expectMsgAllClassOf[T](max: FiniteDuration, obj: Class[_ <: T]*): Seq[T]

    Receive a number of messages from the test actor matching the given number of classes and assert that for each given class one is received which is of that class (equality, not conformance).

    Receive a number of messages from the test actor matching the given number of classes and assert that for each given class one is received which is of that class (equality, not conformance). This construct is useful when the order in which the objects are received is not fixed. Wait time is bounded by the given duration, with an AssertionFailure being thrown in case of timeout.

    Definition Classes
    TestKitBase
  13. def expectMsgAllClassOf[T](obj: Class[_ <: T]*): Seq[T]

    Same as expectMsgAllClassOf(remainingOrDefault, obj...), but correctly treating the timeFactor.

    Same as expectMsgAllClassOf(remainingOrDefault, obj...), but correctly treating the timeFactor.

    Definition Classes
    TestKitBase
  14. def expectMsgAllConformingOf[T](max: FiniteDuration, obj: Class[_ <: T]*): Seq[T]

    Receive a number of messages from the test actor matching the given number of classes and assert that for each given class one is received which conforms to that class (and vice versa).

    Receive a number of messages from the test actor matching the given number of classes and assert that for each given class one is received which conforms to that class (and vice versa). This construct is useful when the order in which the objects are received is not fixed. Wait time is bounded by the given duration, with an AssertionFailure being thrown in case of timeout.

    Beware that one object may satisfy all given class constraints, which may be counter-intuitive.

    Definition Classes
    TestKitBase
  15. def expectMsgAllConformingOf[T](obj: Class[_ <: T]*): Seq[T]

    Same as expectMsgAllConformingOf(remainingOrDefault, obj...), but correctly treating the timeFactor.

    Same as expectMsgAllConformingOf(remainingOrDefault, obj...), but correctly treating the timeFactor.

    Definition Classes
    TestKitBase
  16. def expectMsgAllOf[T](max: FiniteDuration, obj: T*): Seq[T]

    Receive a number of messages from the test actor matching the given number of objects and assert that for each given object one is received which equals it and vice versa.

    Receive a number of messages from the test actor matching the given number of objects and assert that for each given object one is received which equals it and vice versa. This construct is useful when the order in which the objects are received is not fixed. Wait time is bounded by the given duration, with an AssertionFailure being thrown in case of timeout.

      dispatcher ! SomeWork1()
      dispatcher ! SomeWork2()
      expectMsgAllOf(1 second, Result1(), Result2())
    

    Definition Classes
    TestKitBase
  17. def expectMsgAllOf[T](obj: T*): Seq[T]

    Same as expectMsgAllOf(remainingOrDefault, obj...), but correctly treating the timeFactor.

    Same as expectMsgAllOf(remainingOrDefault, obj...), but correctly treating the timeFactor.

    Definition Classes
    TestKitBase
  18. def expectMsgAnyClassOf[C](max: FiniteDuration, obj: Class[_ <: C]*): C

    Receive one message from the test actor and assert that it conforms to one of the given classes.

    Receive one message from the test actor and assert that it conforms to one of the given classes. Wait time is bounded by the given duration, with an AssertionFailure being thrown in case of timeout.

    returns

    the received object

    Definition Classes
    TestKitBase
  19. def expectMsgAnyClassOf[C](obj: Class[_ <: C]*): C

    Same as expectMsgAnyClassOf(remainingOrDefault, obj...), but correctly treating the timeFactor.

    Same as expectMsgAnyClassOf(remainingOrDefault, obj...), but correctly treating the timeFactor.

    Definition Classes
    TestKitBase
  20. def expectMsgAnyOf[T](max: FiniteDuration, obj: T*): T

    Receive one message from the test actor and assert that it equals one of the given objects.

    Receive one message from the test actor and assert that it equals one of the given objects. Wait time is bounded by the given duration, with an AssertionFailure being thrown in case of timeout.

    returns

    the received object

    Definition Classes
    TestKitBase
  21. def expectMsgAnyOf[T](obj: T*): T

    Same as expectMsgAnyOf(remainingOrDefault, obj...), but correctly treating the timeFactor.

    Same as expectMsgAnyOf(remainingOrDefault, obj...), but correctly treating the timeFactor.

    Definition Classes
    TestKitBase
  22. def expectMsgClass[C](max: FiniteDuration, c: Class[C]): C

    Receive one message from the test actor and assert that it conforms to the given class.

    Receive one message from the test actor and assert that it conforms to the given class. Wait time is bounded by the given duration, with an AssertionFailure being thrown in case of timeout.

    returns

    the received object

    Definition Classes
    TestKitBase
  23. def expectMsgClass[C](c: Class[C]): C

    Same as expectMsgClass(remainingOrDefault, c), but correctly treating the timeFactor.

    Same as expectMsgClass(remainingOrDefault, c), but correctly treating the timeFactor.

    Definition Classes
    TestKitBase
  24. def expectMsgPF[T](max: Duration = Duration.Undefined, hint: String = "")(f: PartialFunction[Any, T]): T

    Receive one message from the test actor and assert that the given partial function accepts it.

    Receive one message from the test actor and assert that the given partial function accepts it. Wait time is bounded by the given duration, with an AssertionFailure being thrown in case of timeout.

    Use this variant to implement more complicated or conditional processing.

    returns

    the received object as transformed by the partial function

    Definition Classes
    TestKitBase
  25. def expectMsgType[T](max: FiniteDuration)(implicit t: ClassTag[T]): T

    Receive one message from the test actor and assert that it conforms to the given type (after erasure).

    Receive one message from the test actor and assert that it conforms to the given type (after erasure). Wait time is bounded by the given duration, with an AssertionFailure being thrown in case of timeout.

    returns

    the received object

    Definition Classes
    TestKitBase
  26. def expectMsgType[T](implicit t: ClassTag[T]): T

    Same as expectMsgType[T](remainingOrDefault), but correctly treating the timeFactor.

    Same as expectMsgType[T](remainingOrDefault), but correctly treating the timeFactor.

    Definition Classes
    TestKitBase
  27. def expectNoMessage(): Unit

    Same as expectNoMessage(remainingOrDefault), but correctly treating the timeFactor.

    Same as expectNoMessage(remainingOrDefault), but correctly treating the timeFactor.

    Definition Classes
    TestKitBase
  28. def expectNoMessage(max: FiniteDuration): Unit

    Assert that no message is received for the specified time.

    Assert that no message is received for the specified time. Supplied value is not dilated.

    Definition Classes
    TestKitBase
  29. def expectTerminated(target: ActorRef, max: Duration = Duration.Undefined): Terminated

    Receive one message from the test actor and assert that it is the Terminated message of the given ActorRef.

    Receive one message from the test actor and assert that it is the Terminated message of the given ActorRef. Before calling this method, you have to watch the target actor ref. Wait time is bounded by the given duration, with an AssertionFailure being thrown in case of timeout.

    target

    the actor ref expected to be Terminated

    max

    wait no more than max time, otherwise throw AssertionFailure

    returns

    the received Terminated message

    Definition Classes
    TestKitBase
  30. def fishForMessage(max: Duration = Duration.Undefined, hint: String = "")(f: PartialFunction[Any, Boolean]): Any

    Hybrid of expectMsgPF and receiveWhile: receive messages while the partial function matches and returns false.

    Hybrid of expectMsgPF and receiveWhile: receive messages while the partial function matches and returns false. Use it to ignore certain messages while waiting for a specific message.

    returns

    the last received message, i.e. the first one for which the partial function returned true

    Definition Classes
    TestKitBase
  31. def fishForSpecificMessage[T](max: Duration = Duration.Undefined, hint: String = "")(f: PartialFunction[Any, T]): T

    Waits for specific message that partial function matches while ignoring all other messages coming in the meantime.

    Waits for specific message that partial function matches while ignoring all other messages coming in the meantime. Use it to ignore any number of messages while waiting for a specific one.

    returns

    result of applying partial function to the last received message, i.e. the first one for which the partial function is defined

    Definition Classes
    TestKitBase
  32. def ignoreMsg(f: PartialFunction[Any, Boolean]): Unit

    Ignore all messages in the test actor for which the given partial function returns true.

    Ignore all messages in the test actor for which the given partial function returns true.

    Definition Classes
    TestKitBase
  33. def ignoreNoMsg(): Unit

    Stop ignoring messages in the test actor.

    Stop ignoring messages in the test actor.

    Definition Classes
    TestKitBase
  34. def isNode(nodes: RoleName*): Boolean

    Verify that the running node matches one of the given nodes

  35. def lastSender: ActorRef
    Definition Classes
    TestKitBase
  36. val log: LoggingAdapter
  37. def msgAvailable: Boolean

    Query queue status.

    Query queue status.

    Definition Classes
    TestKitBase
  38. final def multiNodeSpecAfterAll(): Unit

    Call this after the all test cases have run.

    Call this after the all test cases have run. NOT after every test case.

    Definition Classes
    MultiNodeSpecMultiNodeSpecCallbacks
  39. final def multiNodeSpecBeforeAll(): Unit

    Call this before the start of the test run.

    Call this before the start of the test run. NOT before every test case.

    Definition Classes
    MultiNodeSpecMultiNodeSpecCallbacks
  40. def muteDeadLetters(messageClasses: Class[_]*)(sys: ActorSystem = system): Unit
  41. val myself: RoleName
  42. def node(role: RoleName): ActorPath

    Query the controller for the transport address of the given node (by role name) and return that as an ActorPath for easy composition:

    Query the controller for the transport address of the given node (by role name) and return that as an ActorPath for easy composition:

    val serviceA = system.actorSelection(node("master") / "user" / "serviceA")
  43. def now: FiniteDuration

    Obtain current time (System.nanoTime) as Duration.

    Obtain current time (System.nanoTime) as Duration.

    Definition Classes
    TestKitBase
  44. def receiveN(n: Int, max: FiniteDuration): Seq[AnyRef]

    Receive N messages in a row before the given deadline.

    Receive N messages in a row before the given deadline.

    Definition Classes
    TestKitBase
  45. def receiveN(n: Int): Seq[AnyRef]

    Same as receiveN(n, remaining) but correctly taking into account Duration.timeFactor.

    Same as receiveN(n, remaining) but correctly taking into account Duration.timeFactor.

    Definition Classes
    TestKitBase
  46. def receiveOne(max: Duration): AnyRef

    Receive one message from the internal queue of the TestActor.

    Receive one message from the internal queue of the TestActor. If the given duration is zero, the queue is polled (non-blocking).

    This method does NOT automatically scale its Duration parameter!

    Definition Classes
    TestKitBase
  47. def receiveWhile[T](max: Duration = Duration.Undefined, idle: Duration = Duration.Inf, messages: Int = Int.MaxValue)(f: PartialFunction[AnyRef, T]): Seq[T]

    Receive a series of messages until one does not match the given partial function or the idle timeout is met (disabled by default) or the overall maximum duration is elapsed or expected messages count is reached.

    Receive a series of messages until one does not match the given partial function or the idle timeout is met (disabled by default) or the overall maximum duration is elapsed or expected messages count is reached. Returns the sequence of messages.

    Note that it is not an error to hit the max duration in this case.

    One possible use of this method is for testing whether messages of certain characteristics are generated at a certain rate:

    test ! ScheduleTicks(100 millis)
    val series = receiveWhile(750 millis) {
        case Tick(count) => count
    }
    assert(series == (1 to 7).toList)
    Definition Classes
    TestKitBase
  48. def remaining: FiniteDuration

    Obtain time remaining for execution of the innermost enclosing within block or throw an AssertionError if no within block surrounds this call.

    Obtain time remaining for execution of the innermost enclosing within block or throw an AssertionError if no within block surrounds this call.

    Definition Classes
    TestKitBase
  49. def remainingOr(duration: FiniteDuration): FiniteDuration

    Obtain time remaining for execution of the innermost enclosing within block or missing that it returns the given duration.

    Obtain time remaining for execution of the innermost enclosing within block or missing that it returns the given duration.

    Definition Classes
    TestKitBase
  50. def remainingOrDefault: FiniteDuration

    Obtain time remaining for execution of the innermost enclosing within block or missing that it returns the properly dilated default for this case from settings (key "akka.test.single-expect-default").

    Obtain time remaining for execution of the innermost enclosing within block or missing that it returns the properly dilated default for this case from settings (key "akka.test.single-expect-default").

    Definition Classes
    TestKitBase
  51. def roles: Seq[RoleName]

    All registered roles

  52. def runOn(nodes: RoleName*)(thunk: ⇒ Unit): Unit

    Execute the given block of code only on the given nodes (names according to the roleMap).

  53. def setAutoPilot(pilot: AutoPilot): Unit

    Install an AutoPilot to drive the testActor: the AutoPilot will be run for each received message and can be used to send or forward messages, etc.

    Install an AutoPilot to drive the testActor: the AutoPilot will be run for each received message and can be used to send or forward messages, etc. Each invocation must return the AutoPilot for the next round.

    Definition Classes
    TestKitBase
  54. def shutdown(actorSystem: ActorSystem = system, duration: Duration = 10.seconds.dilated.min(10.seconds), verifySystemShutdown: Boolean = false): Unit

    Shut down an actor system and wait for termination.

    Shut down an actor system and wait for termination. On failure debug output will be logged about the remaining actors in the system.

    If verifySystemShutdown is true, then an exception will be thrown on failure.

    Definition Classes
    TestKitBase
  55. def shutdownTimeout: FiniteDuration
  56. implicit val system: ActorSystem
    Definition Classes
    TestKitTestKitBase
  57. val testActor: ActorRef

    ActorRef of the test actor.

    ActorRef of the test actor. Access is provided to enable e.g. registration as message target.

    Definition Classes
    TestKitBase
  58. var testConductor: TestConductorExt

    Access to the barriers, failure injection, etc.

    Access to the barriers, failure injection, etc. The extension will have been started either in Conductor or Player mode when the constructor of MultiNodeSpec finishes, i.e. do not call the start*() methods yourself!

  59. val testKitSettings: TestKitSettings
    Definition Classes
    TestKitBase
  60. def unwatch(ref: ActorRef): ActorRef

    Have the testActor stop watching someone (i.e.

    Have the testActor stop watching someone (i.e. context.unwatch(...)).

    Definition Classes
    TestKitBase
  61. def verifySystemShutdown: Boolean

    Override this and return true to assert that the shutdown of the ActorSystem was done properly.

  62. def watch(ref: ActorRef): ActorRef

    Have the testActor watch someone (i.e.

    Have the testActor watch someone (i.e. context.watch(...)).

    Definition Classes
    TestKitBase
  63. def within[T](max: FiniteDuration)(f: ⇒ T): T

    Same as calling within(0 seconds, max)(f).

    Same as calling within(0 seconds, max)(f).

    Definition Classes
    TestKitBase
  64. def within[T](min: FiniteDuration, max: FiniteDuration)(f: ⇒ T): T

    Execute code block while bounding its execution time between min and max.

    Execute code block while bounding its execution time between min and max. within blocks may be nested. All methods in this trait which take maximum wait times are available in a version which implicitly uses the remaining time governed by the innermost enclosing within block.

    Note that the timeout is scaled using Duration.dilated, which uses the configuration entry "akka.test.timefactor", while the min Duration is not.

    val ret = within(50 millis) {
      test ! "ping"
      expectMsgClass(classOf[String])
    }
    Definition Classes
    TestKitBase

Deprecated Value Members

  1. def expectNoMsg(max: FiniteDuration): Unit

    Assert that no message is received for the specified time.

    Assert that no message is received for the specified time. NOTE! Supplied value is always dilated.

    Definition Classes
    TestKitBase
    Annotations
    @deprecated
    Deprecated

    (Since version 2.5.5) Use expectNoMessage instead

  2. def expectNoMsg(): Unit

    Same as expectNoMsg(remainingOrDefault), but correctly treating the timeFactor.

    Same as expectNoMsg(remainingOrDefault), but correctly treating the timeFactor.

    Definition Classes
    TestKitBase
    Annotations
    @deprecated
    Deprecated

    (Since version 2.5.5) Use expectNoMessage instead