When i'm running the tests i can't mark them as blocked (e.g: when i get an exception) they are always marked as failed.

Now my thought:
There are several result parser (tap/testng/junit) would it be possible, to parse the failure-type / -message from the result xml-file.
e.g: <failure type="AssertionError" message="Error loading Page, Status blocked">
or <failure type="BlockedError" message="Error loading Page">

On this way it would be possible, when writing the tests, to throw special a exceptions to trigger the blocked state.