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1 files changed, 100 insertions, 0 deletions

diff --git a/test-nsc/files/run/iq.scala b/test-nsc/files/run/iq.scala
new file mode 100755
index 0000000000..87bbe45cd7
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+++ b/test-nsc/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;
+
+    /* Test is empty and dequeue.
+     * Expected: Head: 42
+     */
+    val q4 =
+      if(q2.isEmpty) {
+        Console.println("Empty");
+        q2;
+      } else {
+	  val Pair(head,q3) = q2.dequeue;
+	  Console.println("Head: " + head);
+	  q3;
+      };
+
+    /* Test sequence enqueing. */
+    val q5:Queue[Any] = q4.enqueue(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(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 Pair(_,q6) = q5.dequeue;
+    val Pair(_,q7) = q6.dequeue;
+    val q8 = q7 + 10 + 11;
+    /* Test dequeu
+     * Expected: q8: Queue(2,3,4,5,6,7,8,9,10,11)
+     */
+    Console.println("q8: " + q8);
+    val q9 = new 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.elements.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]): Unit = {
+    iq.main;
+    ();
+  }
+}