1 files changed, 100 insertions, 0 deletions
diff --git a/test/files/run/iq.scala b/test/files/run/iq.scala
new file mode 100644
index 0000000000..1b57fb3674
--- /dev/null
+++ b/test/files/run/iq.scala
@@ -0,0 +1,100 @@
+/* $Id$
+ * Test file for immutable queues.
+ */
+
+import scala.collection.immutable.Queue
+
+object iq {
+  def main {
+    /* Create an empty queue. */
+    val q: Queue[Int] = Queue.Empty
+
+    /* Test isEmpty.
+     * Expected: Empty
+     */
+    if (q.isEmpty) {
+      Console.println("Empty")
+    }
+
+    /* Test infix enqueing. */
+    //val q2 = q + 42 + 0  // deprecated
+    val q2 = q.enqueue(42).enqueue(0)
+
+    /* Test is empty and dequeue.
+     * Expected: Head: 42
+     */
+    val q4 =
+      if (q2.isEmpty) {
+        Console.println("Empty")
+        q2
+      }
+      else {
+	val (head, q3) = q2.dequeue
+        Console.println("Head: " + head)
+        q3
+      }
+
+    /* Test sequence enqueing. */
+    val q5: Queue[Any] = q4.enqueue(List(1,2,3,4,5,6,7,8,9))
+    /* Test toString.
+     * Expected: Head: q5: Queue(0,1,2,3,4,5,6,7,8,9)
+     */
+    Console.println("q5: " + q5)
+    /* Test apply
+     * Expected: q5[5]: 5
+     */
+    Console.println("q5[5]: " + q5(5))
+
+    val q5c: Queue[Int] = Queue.Empty.enqueue(List(0, 1, 2, 3, 4, 5, 6, 7, 8, 9))
+
+    /* Testing ==
+     *  Expected: q5 == q9: true
+     *            q9 == q5: true
+     */
+    Console.println("q5 == q5c: " + (q5 == q5c))
+    Console.println("q5c == q5: " + (q5c == q5))
+
+    val (_, q6) = q5.dequeue
+    val (_, q7) = q6.dequeue
+    //val q8 = q7 + 10 + 11  //deprecated
+    val q8 = q7.enqueue(10).enqueue(11)
+    /* Test dequeu
+     * Expected: q8: Queue(2,3,4,5,6,7,8,9,10,11)
+     */
+    Console.println("q8: " + q8)
+    val q9 = Queue(2,3,4,5,6,7,8,9,10,11)
+
+    /* Testing ==
+     *  Expected: q8 == q9: true
+     */
+    Console.println("q8 == q9: " + (q8 == q9))
+
+    /* Testing elements
+     *  Expected: Elements:  1  2  3  4  5  6  7  8  9
+     */
+    Console.print("Elements: ");
+    q6.iterator.foreach(e => Console.print(" "+ e + " "))
+    Console.println;
+
+   /* Testing mkString
+     *  Expected: String: <1-2-3-4-5-6-7-8-9>
+     */
+    Console.println("String: " + q6.mkString("<","-",">"))
+
+    /* Testing length
+     *  Expected: Length: 9
+     */
+    Console.println("Length: " + q6.length)
+
+    /* Testing front
+     *  Expected: Front: 1
+     */
+    Console.println("Front: " + q6.front);
+  }
+}
+
+object Test {
+  def main(args: Array[String]) {
+    iq.main
+  }
+}