You should always test your wrapper before considering it done. There are often weirdness in the HTML that you don't notice otherwise. These can usually be delt with rather easily by a slight modification of a regular expression somewhere.
Wrappers can be most easily tested using the HtmlGet shell. For an example of the commands required to test a wrapper, please see the HtmlGet commands in quotes.hget and quotes2.hget in the WebFiles directory of this distribution.
For more information on HtmlGet, please look here