michael@0: actual = '';
michael@0: expected = '0,0,0,';
michael@0: 
michael@0: function f() {
michael@0:   arguments.length--;
michael@0:   for (var i = 0; i < arguments.length; ++i) {
michael@0:     appendToActual(i);
michael@0:   }
michael@0: }
michael@0: 
michael@0: f(1, 2);
michael@0: f(1, 2);
michael@0: f(2, 2);
michael@0: 
michael@0: 
michael@0: assertEq(actual, expected)