1 files changed, 16 insertions, 0 deletions
diff --git a/test/files/scalacheck/parallel-collections/ParallelIterableCheck.scala b/test/files/scalacheck/parallel-collections/ParallelIterableCheck.scala
index 60e8c8b1f2..9ddd5781b9 100644
--- a/test/files/scalacheck/parallel-collections/ParallelIterableCheck.scala
+++ b/test/files/scalacheck/parallel-collections/ParallelIterableCheck.scala
@@ -414,6 +414,22 @@ abstract class ParallelIterableCheck[T](collName: String) extends Properties(col
       }).reduceLeft(_ && _)
   }
 
+  // property("groupBy must be equal") = forAll(collectionPairs) {
+  //   case (t, coll) =>
+  //     (for ((f, ind) <- groupByFunctions.zipWithIndex) yield {
+  //       val tgroup = t.groupBy(f)
+  //       val cgroup = coll.groupBy(f)
+  //       if (tgroup != cgroup || cgroup != tgroup) {
+  //         println("from: " + t)
+  //         println("and: " + coll)
+  //         println("groups are: ")
+  //         println(tgroup)
+  //         println(cgroup)
+  //       }
+  //       ("operator " + ind) |: tgroup == cgroup && cgroup == tgroup
+  //     }).reduceLeft(_ && _)
+  // }
+
 }