1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/tests/non262/Array/array-length-set-on-nonarray.js b/js/src/tests/non262/Array/array-length-set-on-nonarray.js
new file mode 100644
index 0000000000..bc47c74777
--- /dev/null
+++ b/js/src/tests/non262/Array/array-length-set-on-nonarray.js
@@ -0,0 +1,26 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 548671;
+var summary =
+  "Don't use a shared-permanent inherited property to implement " +
+  "[].length or (function(){}).length";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var a = [];
+a.p = 1;
+var x = Object.create(a);
+assertEq(x.length, 0);
+assertEq(x.p, 1);
+assertEq(a.length, 0);
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);
+
+print("All tests passed!");