michael@0: function f(a=1, b=2, c=3) { return arguments; }
michael@0: var args = f();
michael@0: assertEq(args.length, 0);
michael@0: assertEq("0" in args, false);
michael@0: args = f(5, 6);
michael@0: assertEq(args.length, 2);
michael@0: assertEq(args[1], 6);
michael@0: args = f(9, 8, 7, 6, 5);
michael@0: assertEq(args.length, 5);
michael@0: assertEq(args[4], 5);