When testing if an element has a particular class, the test "verifyAttribute | myDiv@class | someClass" fails if the element myDiv has multiple classes. Selenium is failing to pull apart the class attribute string into multiple classes and test them each individually.
<div id="myDiv" class="someClass"> PASS
<div id="myDiv" class="otherClass someClass"> FAIL
Yeah, this would definitely be nice to have, although verifyAttribute seems to work as intended (the class attribute is indeed the space-separated list of classes)
One potential fix would be to add verifyElementHasClass, as demonstrated here: http://elarson.posterous.com/testing-if-an-element-has-a-class-in-selenium