1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arguments/testDelArg2.js b/js/src/jit-test/tests/arguments/testDelArg2.js
new file mode 100644
index 0000000000..09fcf1f57d
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/testDelArg2.js
@@ -0,0 +1,13 @@
+function f(del) {
+    o = arguments;
+    if (del)
+        delete o[2];
+    for (var i = 0; i < 10; ++i)
+        assertEq(o[2] == undefined, del);
+}
+
+// record without arg deleted
+f(false, 1,2,3,4);
+
+// run with arg deleted
+f(true, 1,2,3,4);