What is the best way to pass a flag from a unit test?

[Khaled Hosny]

What the best way to detect, inside VCL, that a given CppunitTest is
being run and do something conditionally? I basically want to detect if
a given class of unit tests is run and disable all font searching and
fallback and just use a hard-coded font name so that the tests are not
affected by what fonts are available or not on the system (or that the
theory).

Regards,
Khaled