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|
import akka.dispatch.{
Future => future,
Promise => promise
}
import akka.dispatch.Await.{result => await}
// Duration required for await
import akka.util.Duration
import java.util.concurrent.TimeUnit
import TimeUnit._
import scala.concurrent.{
TimeoutException,
SyncVar,
ExecutionException
}
//import scala.concurrent.future
//import scala.concurrent.promise
//import scala.concurrent.await
trait TestBase {
implicit val disp = akka.actor.ActorSystem().dispatcher
def once(body: (() => Unit) => Unit) {
val sv = new SyncVar[Boolean]
body(() => sv put true)
sv.take()
}
}
trait FutureCallbacks extends TestBase {
def testOnSuccess(): Unit = once {
done =>
var x = 0
val f = future {
x = 1
}
f onSuccess { case any =>
done()
assert(x == 1)
}
}
def testOnSuccessWhenCompleted(): Unit = once {
done =>
var x = 0
val f = future {
x = 1
}
f onSuccess { case any =>
assert(x == 1)
x = 2
f onSuccess { case any =>
assert(x == 2)
done()
}
}
}
def testOnSuccessWhenFailed(): Unit = once {
done =>
val f = future[Unit] {
done()
throw new Exception
}
f onSuccess { case any =>
assert(false)
}
}
def testOnFailure(): Unit = once {
done =>
var x = 0
val f = future[Unit] {
x = 1
throw new Exception
}
f onSuccess { case any =>
done()
assert(false)
}
f onFailure {
case _ =>
done()
assert(x == 1)
}
}
def testOnFailureWhenSpecialThrowable(num: Int, cause: Throwable): Unit = once {
done =>
val f = future[Unit] {
throw cause
}
f onSuccess { case any =>
done()
assert(false)
}
f onFailure {
case e: ExecutionException if (e.getCause == cause) =>
done()
case _ =>
done()
assert(false)
}
}
def testOnFailureWhenTimeoutException(): Unit = once {
done =>
val f = future[Unit] {
throw new TimeoutException()
}
f onSuccess { case any =>
done()
assert(false)
}
f onFailure {
case e: TimeoutException =>
done()
case other =>
done()
assert(false)
}
}
testOnSuccess()
testOnSuccessWhenCompleted()
testOnSuccessWhenFailed()
testOnFailure()
// testOnFailureWhenSpecialThrowable(5, new Error)
// testOnFailureWhenSpecialThrowable(6, new scala.util.control.ControlThrowable { })
// testOnFailureWhenSpecialThrowable(7, new InterruptedException)
// testOnFailureWhenTimeoutException()
}
trait FutureCombinators extends TestBase {
// map: stub
def testMapSuccess(): Unit = once {
done =>
done()
}
def testMapFailure(): Unit = once {
done =>
done()
}
// flatMap: stub
def testFlatMapSuccess(): Unit = once {
done =>
done()
}
def testFlatMapFailure(): Unit = once {
done =>
done()
}
// filter: stub
def testFilterSuccess(): Unit = once {
done =>
done()
}
def testFilterFailure(): Unit = once {
done =>
done()
}
// foreach: stub
def testForeachSuccess(): Unit = once {
done =>
done()
}
def testForeachFailure(): Unit = once {
done =>
done()
}
def testRecoverSuccess(): Unit = once {
done =>
val cause = new RuntimeException
val f = future {
throw cause
} recover {
case re: RuntimeException =>
"recovered"
} onSuccess { case x =>
done()
assert(x == "recovered")
} onFailure { case any =>
done()
assert(false)
}
}
def testRecoverFailure(): Unit = once {
done =>
val cause = new RuntimeException
val f = future {
throw cause
} recover {
case te: TimeoutException => "timeout"
} onSuccess { case x =>
done()
assert(false)
} onFailure { case any =>
done()
assert(any == cause)
}
}
testMapSuccess()
testMapFailure()
testFlatMapSuccess()
testFlatMapFailure()
testFilterSuccess()
testFilterFailure()
testForeachSuccess()
testForeachFailure()
testRecoverSuccess()
testRecoverFailure()
}
/*
trait FutureProjections extends TestBase {
def testFailedFailureOnComplete(): Unit = once {
done =>
val cause = new RuntimeException
val f = future {
throw cause
}
f.failed onComplete {
case Right(t) =>
assert(t == cause)
done()
case Left(t) =>
assert(false)
}
}
def testFailedFailureOnSuccess(): Unit = once {
done =>
val cause = new RuntimeException
val f = future {
throw cause
}
f.failed onSuccess {
t =>
assert(t == cause)
done()
}
}
def testFailedSuccessOnComplete(): Unit = once {
done =>
val f = future { 0 }
f.failed onComplete {
case Right(t) =>
assert(false)
case Left(t) =>
assert(t.isInstanceOf[NoSuchElementException])
done()
}
}
def testFailedSuccessOnFailure(): Unit = once {
done =>
val f = future { 0 }
f.failed onFailure {
case nsee: NoSuchElementException =>
done()
}
}
def testFailedFailureAwait(): Unit = once {
done =>
val cause = new RuntimeException
val f = future {
throw cause
}
assert(await(0, f.failed) == cause)
done()
}
def testFailedSuccessAwait(): Unit = once {
done =>
val f = future { 0 }
try {
println(await(0, f.failed))
assert(false)
} catch {
case nsee: NoSuchElementException => done()
}
}
testFailedFailureOnComplete()
testFailedFailureOnSuccess()
testFailedSuccessOnComplete()
testFailedSuccessOnFailure()
testFailedFailureAwait()
//testFailedSuccessAwait()
}
*/
trait Blocking extends TestBase {
def testAwaitSuccess(): Unit = once {
done =>
val f = future { 0 }
await(f, Duration(500, "ms"))
done()
}
def testAwaitFailure(): Unit = once {
done =>
val cause = new RuntimeException
val f = future {
throw cause
}
try {
await(f, Duration(500, "ms"))
assert(false)
} catch {
case t =>
assert(t == cause)
done()
}
}
testAwaitSuccess()
testAwaitFailure()
}
/*
trait Promises extends TestBase {
def testSuccess(): Unit = once {
done =>
val p = promise[Int]()
val f = p.future
f.onSuccess { x =>
done()
assert(x == 5)
} onFailure { case any =>
done()
assert(false)
}
p.success(5)
}
testSuccess()
}
*/
trait Exceptions extends TestBase {
}
object Test
extends App
with FutureCallbacks
with FutureCombinators
/*with FutureProjections*/
/*with Promises*/
with Blocking
with Exceptions
{
System.exit(0)
}
|
