Re: [PATCH] tests: create an interactive gdb session with the 'debug' helper

[Jeff King <peff@peff.net>]

On Sat, Mar 18, 2017 at 05:10:18PM +0100, SZEDER Gábor wrote:

> > but perhaps this should add:
> >
> >   >&3 2>&4
> >
> > to be on the safe side. That covers running without "-v", as well as
> > cases where the test script is redirecting output
> 
> That wouldn't buy us much.  First, file descriptors 3 and 4 are the
> test's stdout and stderr, i.e. any process started within the test
> would be connected to those fds anyway without those explicit
> redirections.  Second, fds 3 and 4 are redirected to /dev/null in
> non-verbose mode, so it would still not work without '-v'.
> 
> Perhaps you meant '>&5 2>&7' here (and in the bash example in the
> commit message of 781f76b15 (test-lib: redirect stdin of tests,
> 2011-12-15), for that matter)?  Those redirections do in fact make
> 'debug' work even without '-v'.  Furthermore, those redirections do
> make 'test_pause' work without '-v', too.

Yeah, sorry, I got my descriptors mixed up. ">&5 2>&1" is the right
invocation (unless you add a new "7" to save the original stderr).

-Peff