1 files changed, 63 insertions, 0 deletions
diff --git a/js/src/tests/js1_7/geniter/yield-undefined.js b/js/src/tests/js1_7/geniter/yield-undefined.js
new file mode 100644
index 000000000..5e75fb601
--- /dev/null
+++ b/js/src/tests/js1_7/geniter/yield-undefined.js
@@ -0,0 +1,63 @@
+/* -*- 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/. */
+
+//-----------------------------------------------------------------------------
+// Note that this syntax isn't in the most recently posted ES4 TG1 wiki export,
+// either in the specification parts or in the grammar, so this test might be
+// Spidermonkey-specific.
+var BUGNUMBER     = "(none)";
+var summary = "|yield;| is equivalent to |yield undefined;| ";
+var actual, expect;
+
+printBugNumber(BUGNUMBER);
+printStatus(summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var failed = false;
+
+function gen()
+{
+  yield 7;
+  yield;
+  yield 3;
+}
+
+var it = gen();
+
+try
+{
+  if (it.next() != 7)
+    throw "7 not yielded";
+  if (it.next() !== undefined)
+    throw "|yield;| should be equivalent to |yield undefined;|";
+  if (it.next() != 3)
+    throw "3 not yielded";
+
+  var stopPassed = false;
+  try
+  {
+    it.next();
+  }
+  catch (e)
+  {
+    if (e === StopIteration)
+      stopPassed = true;
+  }
+
+  if (!stopPassed)
+    throw "it: missing or incorrect StopIteration";
+}
+catch (e)
+{
+  failed = e;
+}
+
+expect = false;
+actual = failed;
+
+reportCompare(expect, actual, summary);