Re: difftool--helper: exit when reading a prompt answer fails

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On Sun, Oct 26, 2014 at 05:41:49PM -0700, David Aguilar wrote:
> On Sun, Oct 26, 2014 at 09:09:20AM +0100, Johannes Sixt wrote:
> > An attempt to quit difftool by hitting Ctrl-D (EOF) at its prompt does
> > not quit it, but is treated as if 'yes' was answered to the prompt and
> > all following prompts, which is contrary to the user's intent. Fix the
> > error check.
> > 
> > Signed-off-by: Johannes Sixt <j6t@xxxxxxxx>
> > ---
> >  Found while reviewing your latest patch.
> 
> 
> Thanks for the careful review.
> I have one small question about the test below.

[snip]

> > diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
> > index dc30a51..9cf5dc9 100755
> > --- a/t/t7800-difftool.sh
> > +++ b/t/t7800-difftool.sh
> > @@ -301,6 +301,14 @@ test_expect_success PERL 'say no to the second file' '
> >  	! grep br2 output
> >  '
> >  
> > +test_expect_success PERL 'ending prompt input with EOF' '
> > +	git difftool -x cat branch </dev/null >output &&
> > +	! grep master output &&
> > +	! grep branch output &&
> > +	! grep m2 output &&
> > +	! grep br2 output
> > +'
> 
> Should we use "test_must_fail grep ..." instead of "! grep ..." here?


Nevermind, this is good as-is.
Using "! grep" is consistent with the rest of the tests in t7800.

What I'll do is add a follow-up patch in my upcoming reroll
that swaps all the "! grep" lines to "test_must_fail grep"
in one step.
-- 
David
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