1 files changed, 24 insertions, 0 deletions
diff --git a/test/files/run/priorityQueue.scala b/test/files/run/priorityQueue.scala
new file mode 100644
index 0000000000..9f453788fc
--- /dev/null
+++ b/test/files/run/priorityQueue.scala
@@ -0,0 +1,24 @@
+
+// populate a priority queue a few different ways and make sure they all seem equal
+object Test extends Application {
+  import scala.collection.mutable.PriorityQueue
+  import scala.util.Random.nextInt
+  val pq1 = new PriorityQueue[String]
+  val pq2 = new PriorityQueue[String]
+  val pq3 = new PriorityQueue[String]
+  val pq4 = new PriorityQueue[String]
+
+  val strings = (1 to 20).toList map (i => List.fill((Math.abs(nextInt % 20)) + 1)("x").mkString)
+
+  pq1 ++= strings
+  pq2 ++= strings.reverse
+  for (s <- strings) pq3 += s
+  for (s <- strings.reverse) pq4 += s
+
+  val pqs = List(pq1, pq2, pq3, pq4, pq1.clone, pq2.clone)
+
+  for (queue1 <- pqs ; queue2 <- pqs) {
+    assert(queue1 == queue2)
+    assert(queue1.max == queue2.max)
+  }
+}