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package scala.collection.parallel
package mutable
import org.scalacheck._
import org.scalacheck.Gen
import org.scalacheck.Gen._
import org.scalacheck.Prop._
import org.scalacheck.Properties
import org.scalacheck.Arbitrary._
import scala.collection._
import scala.collection.parallel.ops._
abstract class ParallelArrayCheck[T](tp: String) extends ParallelSeqCheck[T]("ParallelArray[" + tp + "]") {
ForkJoinTasks.defaultForkJoinPool.setMaximumPoolSize(Runtime.getRuntime.availableProcessors * 2)
ForkJoinTasks.defaultForkJoinPool.setParallelism(Runtime.getRuntime.availableProcessors * 2)
type CollType = ParArray[T]
def isCheckingViews = false
def instances(vals: Seq[Gen[T]]): Gen[Seq[T]] = sized { sz =>
val a = new mutable.ArrayBuffer[T](sz)
val gen = vals(rnd.nextInt(vals.size))
for (i <- 0 until sz) a += sample(gen)
a
}
def fromSeq(a: Seq[T]) = {
val pa = new ParArray[T](a.size)
var i = 0
for (elem <- a.toList) {
pa(i) = elem
i += 1
}
pa
}
property("array mappings must be equal") = forAll(collectionPairs) { case (t, coll) =>
val results = for ((f, ind) <- mapFunctions.zipWithIndex)
yield ("op index: " + ind) |: t.map(f) == coll.map(f)
results.reduceLeft(_ && _)
}
}
object IntParallelArrayCheck extends ParallelArrayCheck[Int]("Int") with IntSeqOperators with IntValues {
override def instances(vals: Seq[Gen[Int]]) = oneOf(super.instances(vals), sized { sz =>
(0 until sz).toArray.toSeq
}, sized { sz =>
(-sz until 0).toArray.toSeq
})
}
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