diff options
author | phaller <hallerp@gmail.com> | 2012-10-31 02:11:20 +0100 |
---|---|---|
committer | phaller <hallerp@gmail.com> | 2012-10-31 02:11:20 +0100 |
commit | 5c87d7d1ecf528360d74f219d8a857a516514cdd (patch) | |
tree | f86ac1dbcd243107f3df6d6cd465ae1a7d9bb803 /test/files | |
parent | 1584de89b122fbea98b95bdb4a3a45205c932842 (diff) | |
download | scala-async-5c87d7d1ecf528360d74f219d8a857a516514cdd.tar.gz scala-async-5c87d7d1ecf528360d74f219d8a857a516514cdd.tar.bz2 scala-async-5c87d7d1ecf528360d74f219d8a857a516514cdd.zip |
Fix #2
Diffstat (limited to 'test/files')
-rw-r--r-- | test/files/run/await0/MinimalScalaTest.scala | 102 | ||||
-rw-r--r-- | test/files/run/await0/await0.scala | 76 |
2 files changed, 178 insertions, 0 deletions
diff --git a/test/files/run/await0/MinimalScalaTest.scala b/test/files/run/await0/MinimalScalaTest.scala new file mode 100644 index 0000000..91de1fc --- /dev/null +++ b/test/files/run/await0/MinimalScalaTest.scala @@ -0,0 +1,102 @@ +import language.reflectiveCalls +import language.postfixOps +import language.implicitConversions + +import scala.reflect.{ ClassTag, classTag } + +import scala.collection.mutable +import scala.concurrent.{ Future, Awaitable, CanAwait } +import java.util.concurrent.{ TimeoutException, CountDownLatch, TimeUnit } +import scala.concurrent.duration.Duration + + + +trait Output { + val buffer = new StringBuilder + + def bufferPrintln(a: Any): Unit = buffer.synchronized { + buffer.append(a.toString + "\n") + } +} + + +trait MinimalScalaTest extends Output { + + val throwables = mutable.ArrayBuffer[Throwable]() + + def check() { + if (throwables.nonEmpty) println(buffer.toString) + } + + implicit def stringops(s: String) = new { + + def should[U](snippets: =>U): U = { + bufferPrintln(s + " should:") + snippets + } + + def in[U](snippet: =>U): Unit = { + try { + bufferPrintln("- " + s) + snippet + bufferPrintln("[OK] Test passed.") + } catch { + case e: Throwable => + bufferPrintln("[FAILED] " + e) + bufferPrintln(e.getStackTrace().mkString("\n")) + throwables += e + } + } + + } + + implicit def objectops(obj: Any) = new { + + def mustBe(other: Any) = assert(obj == other, obj + " is not " + other) + def mustEqual(other: Any) = mustBe(other) + + } + + def intercept[T <: Throwable: ClassTag](body: =>Any): T = { + try { + body + throw new Exception("Exception of type %s was not thrown".format(classTag[T])) + } catch { + case t: Throwable => + if (classTag[T].runtimeClass != t.getClass) throw t + else t.asInstanceOf[T] + } + } + + def checkType[T: ClassTag, S](in: Future[T], refclasstag: ClassTag[S]): Boolean = classTag[T] == refclasstag +} + + +object TestLatch { + val DefaultTimeout = Duration(5, TimeUnit.SECONDS) + + def apply(count: Int = 1) = new TestLatch(count) +} + + +class TestLatch(count: Int = 1) extends Awaitable[Unit] { + private var latch = new CountDownLatch(count) + + def countDown() = latch.countDown() + def isOpen: Boolean = latch.getCount == 0 + def open() = while (!isOpen) countDown() + def reset() = latch = new CountDownLatch(count) + + @throws(classOf[TimeoutException]) + def ready(atMost: Duration)(implicit permit: CanAwait) = { + val opened = latch.await(atMost.toNanos, TimeUnit.NANOSECONDS) + if (!opened) throw new TimeoutException("Timeout of %s." format (atMost.toString)) + this + } + + @throws(classOf[Exception]) + def result(atMost: Duration)(implicit permit: CanAwait): Unit = { + ready(atMost) + } + +} diff --git a/test/files/run/await0/await0.scala b/test/files/run/await0/await0.scala new file mode 100644 index 0000000..dfa3370 --- /dev/null +++ b/test/files/run/await0/await0.scala @@ -0,0 +1,76 @@ +/** + * Copyright (C) 2012 Typesafe Inc. <http://www.typesafe.com> + */ + +import language.{ reflectiveCalls, postfixOps } + +import scala.concurrent.{ Future, ExecutionContext, future, Await } +import scala.concurrent.duration._ +import scala.async.Async.{ async, await } + +object Test extends App { + + Await0Spec.check() + +} + +class Await0Class { + import ExecutionContext.Implicits.global + + def m1(x: Double): Future[Double] = future { + Thread.sleep(200) + x + 2.0 + } + + def m2(x: Float): Future[Float] = future { + Thread.sleep(200) + x + 2.0f + } + + def m3(x: Char): Future[Char] = future { + Thread.sleep(200) + (x.toInt + 2).toChar + } + + def m4(x: Short): Future[Short] = future { + Thread.sleep(200) + (x + 2).toShort + } + + def m5(x: Byte): Future[Byte] = future { + Thread.sleep(200) + (x + 2).toByte + } + + def m0(y: Int): Future[Double] = async { + val f1 = m1(y.toDouble) + val x1: Double = await(f1) + + val f2 = m2(y.toFloat) + val x2: Float = await(f2) + + val f3 = m3(y.toChar) + val x3: Char = await(f3) + + val f4 = m4(y.toShort) + val x4: Short = await(f4) + + val f5 = m5(y.toByte) + val x5: Byte = await(f5) + + x1 + x2 + 2.0 + } +} + +object Await0Spec extends MinimalScalaTest { + + "An async method" should { + "support a simple await" in { + val o = new Await0Class + val fut = o.m0(10) + val res = Await.result(fut, 10 seconds) + res mustBe(26.0) + } + } + +} |