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Re: Testing of reverse debug commands
On Sunday 12 July 2009 18:14:36, Michael Snyder wrote:
> Jan Kratochvil wrote:
> > On Sun, 12 Jul 2009 10:01:45 +0200, Joel Brobecker wrote:
> >>> gdb_test "record" "" "Turn on process record"
> >>> # FIXME: command ought to acknowledge, so we can test if it succeeded.
> >> This is just a shot in the dark since I really don't have much time
> >> to double-check this, but does gdb_test_multiple allow you to verify
> >> that no output was generated? For some reason, I thought it did.
> >
> > This one works but not sure if it cannot have some problems:
> >
> > set cmd "set verbose 0"
> > gdb_test $cmd "[string_to_regexp $cmd]"
>
> Hmm, ok, three people so far have responded with
> work-arounds (thanks).
>
> Does that mean y'all lean toward NOT making the
> commands generate some output of their own?
We have many other commands that are silent on success, and we
still test them. The important question is: would *users* find
some output useful, not if the testsuite would. In this case, I've
no real opinion.
Assuming no extra verbosity, if you expect that *only* the gdb
prompt is output, then you know that you had success. The issue
with that hunk you pasted above, is that gdb_test "" eats any and
all output before the prompt, so you can't use it, because
you'd eat errors as well. Well, as they say: then don't do it.
Do you agree with the point I raised about not being able to
query the status of recording at any time? If we had such a
way, I'd suggest checking if recording was in fact enabled
with it, just like:
http://sourceware.org/ml/gdb-patches/2009-06/msg00012.html
--
Pedro Alves