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-rw-r--r--js/src/jit-test/tests/basic/cross-global-for-in.js11
1 files changed, 11 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/cross-global-for-in.js b/js/src/jit-test/tests/basic/cross-global-for-in.js
new file mode 100644
index 000000000..3fd772052
--- /dev/null
+++ b/js/src/jit-test/tests/basic/cross-global-for-in.js
@@ -0,0 +1,11 @@
+var global = newGlobal();
+
+var arrayIter = (new global.Array())[global.Symbol.iterator]();
+var ArrayIteratorPrototype = Object.getPrototypeOf(arrayIter);
+var arrayIterProtoBase = Object.getPrototypeOf(ArrayIteratorPrototype);
+var IteratorPrototype = arrayIterProtoBase;
+delete IteratorPrototype.next;
+
+var obj = global.eval('({a: 1})')
+for (var x in obj) {}
+assertEq(x, "a");