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package scala.collection.mutable
import org.junit.runner.RunWith
import org.junit.runners.JUnit4
import org.junit.Test
import scala.collection.mutable
import java.io.{ObjectInputStream, ByteArrayInputStream, ByteArrayOutputStream, ObjectOutputStream}
@RunWith(classOf[JUnit4])
/* Test for SI-7568 */
class PriorityQueueTest {
val priorityQueue = new mutable.PriorityQueue[Int]()
val elements = List.fill(1000)(scala.util.Random.nextInt(Int.MaxValue))
priorityQueue.enqueue(elements :_*)
@Test
def orderingReverseReverse() {
val pq = new mutable.PriorityQueue[Nothing]()((_,_)=>42)
assert(pq.ord eq pq.reverse.reverse.ord)
}
@Test
def canSerialize() {
val outputStream = new ByteArrayOutputStream()
new ObjectOutputStream(outputStream).writeObject(priorityQueue)
}
@Test
def maintainsStateWhenDeserialized() {
val outputStream = new ByteArrayOutputStream()
new ObjectOutputStream(outputStream).writeObject(priorityQueue)
val bytes = outputStream.toByteArray
val objectInputStream = new ObjectInputStream(new ByteArrayInputStream(bytes))
val deserializedPriorityQueue = objectInputStream.readObject().asInstanceOf[PriorityQueue[Int]]
//correct sequencing is also tested here:
assert(deserializedPriorityQueue.dequeueAll == elements.sorted.reverse)
}
}
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