urlBlast.ini can be configured to produce a log file via a line similar to this line:
Log File=C:\webpagetest\somefolderpath
As for wptdriver.ini, can a log file be configured as well?
Not yet. A lot of the pieces are in place but we haven't wired up the last little bit (actually logging to the file).
The wptdriver.ini.sample file contains this line:
;debug=1
Does wptdriver.exe support debug output yet?
Given that wptdriver isn't producing a log file yet, debug output is most likely not supported yet as well but I wanted confirmation of this just to be sure.
Thanks.
Nope, that is part of the plumbing that is in place but not enabled yet.