PHPUnit with OutputTestCase

Hi PHPUnit testers, I want to know if someone has already used the OutputTestCase extension to check if a full html page is equal to an expected result. I would like to use it to PEAR_Info Test Suite, but i'm not sure if it's the best solution, and also if there is not a problem with long content. While I try the guide example [1], all work fine with PHPUnit 3.1.2, but when I used it with a long content , I always a failure while I pretty sure to have both content (expected, and printed) equals. Feedback are welcome Laurent [1] http://www.phpunit.de/pocket_guide/3.1/en/testcase-extensions.html#testcase-extensions.output