1 files changed, 65 insertions, 0 deletions
diff --git a/js/src/tests/js1_7/geniter/multiple-close.js b/js/src/tests/js1_7/geniter/multiple-close.js
new file mode 100644
index 000000000..7864459ef
--- /dev/null
+++ b/js/src/tests/js1_7/geniter/multiple-close.js
@@ -0,0 +1,65 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER     = "(none)";
+var summary = "calling it.close multiple times is harmless";
+var actual, expect;
+
+printBugNumber(BUGNUMBER);
+printStatus(summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+function fib()
+{
+  yield 0; // 0
+  yield 1; // 1
+  yield 1; // 2
+  yield 2; // 3
+  yield 3; // 4
+  yield 5; // 5
+  yield 8; // 6
+}
+
+var failed = false;
+var it = fib();
+
+try
+{
+  if (it.next() != 0)
+    throw "0 failed";
+
+  // closing an already-closed generator is a no-op
+  it.close();
+  it.close();
+  it.close();
+
+  var stopPassed = false;
+  try
+  {
+    it.next();
+  }
+  catch (e)
+  {
+    if (e === StopIteration)
+      stopPassed = true;
+  }
+  if (!stopPassed)
+    throw "a closed iterator throws StopIteration on next";
+}
+catch (e)
+{
+  failed = e;
+}
+
+
+
+expect = false;
+actual = failed;
+
+reportCompare(expect, actual, summary);