michael@0: function testToStringBeforeValueOf()
michael@0: {
michael@0:     var o = {toString: function() { return "s"; }, valueOf: function() { return "v"; } };
michael@0:     var a = [];
michael@0:     for (var i = 0; i < 10; i++)
michael@0:         a.push(String(o));
michael@0:     return a.join(",");
michael@0: }
michael@0: assertEq(testToStringBeforeValueOf(), "s,s,s,s,s,s,s,s,s,s");