Re: [PEPr] Comment on Semantic Web::XML_GRDDL

On 2 Mar 2008 14:33:09 -0000, Daniel O'Connor <daniel.oconnor@gmail.com> wrote: > > Daniel O'Connor (http://pear.php.net/user/doconnor) has commented on the proposal for > Semantic Web::XML_GRDDL. > > Comment: > > > >> 2) I have a pre-rendered out RDF/XML document to compare my generated > > >> (...) > > >> - there's no PHPUnit::assertEqual($xml, $other_xml); which handles all > > >> of the ins and outs that a string comparison won't cut it for. > > > > > Can you explain this? Are you talking about the difference in linebreaks > and possible whitespace? Or what exactly keeps you from a simple string > comparison? > Well, it's not just whitespace, line endings and other minor snafu. Hmm, I gotcha. Maybe similar_text() or levenshtein() help? Not sure if this is appropriate though. From your examples similar_text() reports that the XML "A" and "B" are ~70% identical which doesn't really say "PASS", but is also not really "FAIL". ;-) You could also count tags and assign checksums to see if they add up - then again that could still be a complete fail if the XML data is not in order/invalid. But I guess if the XML is valid (I am thinking basic valid format AND dtd) you could go the checksum-route. Maybe you need to transform (= clean) the XML data before you compare it? Stylesheets, or something? I am totally clueless how though.:-) Cheers, Till