PlUnit and restricting tests to one of a forall

I have a number of PlUnit tests that run the same sequence of
operations over pairs of input/output files I have declared using the
forall/1 option to test/2.

ie.

etfile('basic.ttl', 'basic_out.ttl').
etfile('basic_bnode.ttl', 'basic_bnode_out.ttl').
etfile('has_transcript.ttl', 'has_transcript_out.ttl').
etfile('depicts_building.ttl', 'depicts_building_out.ttl').

test(entailment, [
        setup(init_ont),
        cleanup(rdf_reset_db),
        forall(etfile(InFile, OutFile)) ]) :-
    ...

run_tests/1 allows me to restrict the test run to just this test, but
I would like to be able to restrict it to a single instance of the
forall without editing the test_file. Is this possible?

Cheers,
Andrae

-- 
Andrae Muys
e:[email protected]
t:@etymon
b:http://etymon.blogspot.com