The pages below contain our current results of the MathML 3 full testsuite for presentation MathML. The sections are marked with passed, failed, not-tested or some parts pass, giving the status of trunk builds with the appropriate fonts installed. When the markup is intentionally errorous, the correct behavior is not defined by the recommendation and hence the tests are considered passed if there is no fatal error (crash, etc). This exception also holds for obsolete features (such as macro, mode etc) or for other undefined behaviors (attribute href for example).
Note that in general, comparing with the "Sample Rendering" is not enough to conclude on the success/failure of the test. So please do not edit these pages if you are not able to explain Gecko's rendering. However, any report is welcome on the Tracking bug for the MathML testsuite.