1 files changed, 69 insertions, 0 deletions
diff --git a/test/benchmarking/TreeSetIterator.scala b/test/benchmarking/TreeSetIterator.scala
new file mode 100644
index 0000000000..08c20e8b0c
--- /dev/null
+++ b/test/benchmarking/TreeSetIterator.scala
@@ -0,0 +1,69 @@
+
+object TreeSetIterator {
+
+  def main(args: Array[String]): Unit = {
+    val n = 500000
+    JavaUtilTS.main(args)
+    MutableTS.main(args)
+    ImmutableTS.main(args)
+  }
+}
+
+class Dummy(val a: Int) extends math.Ordered[Dummy] {
+    def compare(other: Dummy) = this.a - other.a
+
+    override def toString = a.toString
+  }
+
+
+object JavaUtilTS extends testing.Benchmark {
+  val length = sys.props("length").toInt
+  var data: Array[Dummy] = (0 until length) map { a => new Dummy(a) } toArray
+  var t: java.util.TreeSet[Dummy] = null
+
+  def run = {
+    t = new java.util.TreeSet[Dummy]()
+    data foreach { a => t add a }
+
+    var i: Dummy = null
+    var it = t.iterator
+    while (it.hasNext) {
+      i = it.next
+    }
+    i
+  }
+}
+
+object MutableTS extends testing.Benchmark {
+  val length = sys.props("length").toInt
+  var data: Array[Dummy] = (0 until length) map { a => new Dummy(a) } toArray
+  var t: collection.mutable.TreeSet[Dummy] = null
+
+  def run = {
+    t = collection.mutable.TreeSet[Dummy](data: _*)
+
+    var i: Dummy = null
+    var it = t.iterator
+    while (it.hasNext) {
+      i = it.next
+    }
+    i
+  }
+}
+
+object ImmutableTS extends testing.Benchmark {
+  val length = sys.props("length").toInt
+  var data: Array[Dummy] = (0 until length) map { a => new Dummy(a) } toArray
+  var t: collection.immutable.TreeSet[Dummy] = null
+
+  def run = {
+    t = collection.immutable.TreeSet[Dummy](data: _*)
+
+    var i: Dummy = null
+    var it = t.iterator
+    while (it.hasNext) {
+      i = it.next
+    }
+    i
+  }
+}