diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/arguments/rest-basic.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/arguments/rest-basic.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+function check(expected, ...rest) {
+    assertEq(expected.toString(), rest.toString());
+}
+
+assertEq(check.length, 1);
+check([]);
+check(['a', 'b'], 'a', 'b');
+check(['a', 'b', 'c', 'd'], 'a', 'b', 'c', 'd');
+check.apply(null, [['a', 'b'], 'a', 'b'])
+check.call(null, ['a', 'b'], 'a', 'b')
+
+var g = newGlobal();
+g.eval("function f(...rest) { return rest; }");
+var a = g.f(1, 2, 3);
+assertEq(a instanceof g.Array, true);
\ No newline at end of file