--TEST-- basic stream filter tests --FILE-- --EXPECTF-- filter: string.rot13 resource(%d) of type (stream filter) string(12) "Uryyb Gurer!" filter: string.toupper resource(%d) of type (stream filter) string(12) "HELLO THERE!" filter: string.tolower resource(%d) of type (stream filter) string(12) "hello there!" filter: string.rot13 resource(%d) of type (stream filter) filter: string.toupper resource(%d) of type (stream filter) string(12) "URYYB GURER!"