Add corelib tests

test/codegen/corelib/queue_iterator_test.dart

Index: test/codegen/corelib/queue_iterator_test.dart
diff --git a/test/codegen/corelib/queue_iterator_test.dart b/test/codegen/corelib/queue_iterator_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..af0458b73dca918dcda7e772b7acafe9545a6d90
--- /dev/null
+++ b/test/codegen/corelib/queue_iterator_test.dart
@@ -0,0 +1,61 @@
+// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library queue.iterator.test;
+
+import "package:expect/expect.dart";
+import 'dart:collection' show Queue;
+
+class QueueIteratorTest {
+  static testMain() {
+    testSmallQueue();
+    testLargeQueue();
+    testEmptyQueue();
+  }
+
+  static int sum(int expected, Iterator<int> it) {
+    int count = 0;
+    while (it.moveNext()) {
+      count += it.current;
+    }
+    Expect.equals(expected, count);
+  }
+
+  static void testSmallQueue() {
+    Queue<int> queue = new Queue<int>();
+    queue.addLast(1);
+    queue.addLast(2);
+    queue.addLast(3);
+
+    Iterator<int> it = queue.iterator;
+    sum(6, it);
+    Expect.isFalse(it.moveNext());
+    Expect.isNull(it.current);
+  }
+
+  static void testLargeQueue() {
+    Queue<int> queue = new Queue<int>();
+    int count = 0;
+    for (int i = 0; i < 100; i++) {
+      count += i;
+      queue.addLast(i);
+    }
+    Iterator<int> it = queue.iterator;
+    sum(count, it);
+    Expect.isFalse(it.moveNext());
+    Expect.isNull(it.current);
+  }
+
+  static void testEmptyQueue() {
+    Queue<int> queue = new Queue<int>();
+    Iterator<int> it = queue.iterator;
+    sum(0, it);
+    Expect.isFalse(it.moveNext());
+    Expect.isNull(it.current);
+  }
+}
+
+main() {
+  QueueIteratorTest.testMain();
+}