1 files changed, 12 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/generators/yield-yield.js b/js/src/jit-test/tests/generators/yield-yield.js
new file mode 100644
index 0000000000..4c468ba5af
--- /dev/null
+++ b/js/src/jit-test/tests/generators/yield-yield.js
@@ -0,0 +1,12 @@
+// Bug 880447
+
+load(libdir + "asserts.js");
+
+function* f() {
+    yield yield 1;
+}
+
+var g = f();
+assertEq(g.next().value, 1);
+assertEq(g.return("hello").value, "hello");
+assertEq(g.next().value, undefined);