Re: [PATCH v3 2/4] t/t7030-verify-tag.sh: Adds validation for multiple tags

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On Sun, Apr 3, 2016 at 5:58 PM, Santiago Torres <santiago@xxxxxxx> wrote:
> On Sun, Apr 03, 2016 at 09:07:25AM -0400, Jeff King wrote:
>> On Sun, Apr 03, 2016 at 03:59:46AM -0400, Eric Sunshine wrote:
>> > On Sun, Apr 3, 2016 at 12:40 AM, Jeff King <peff@xxxxxxxx> wrote:
>> > > In fact, I suspect you could replace the "GOODSIG" check as well by
>> > > doing something like:
>> > >
>> > >   tags="fourth-signed sixth-signed seventh-signed"
>> > >   for i in $tags; do
>> > >           git verify-tag -v --raw $i || return 1
>> > >   done >expect.stdout 2>expect.stderr &&
>> > >   git verify-tag -v --raw $tags >actual.stdout 2>actual.stderr &&
>> > >   test_cmp expect.stdout actual.stdout &&
>> > >   test_cmp expect.stderr actual.stderr
>> >
>> > Hmm, does [1] suggest that using test_cmp on stderr here would be
>> > contraindicated?
>> >
>> > [1]: http://article.gmane.org/gmane.comp.version-control.git/289077
>>
>> It does, but I am not sure I agree with the advice in that email in the
>> general case (I like making "-x" work, too, but not at the cost of
>> making the tests harder to read and write). In this case, I suppose you
>> could grep for gpg raw-output on stderr, though, and compare only that.
>
> I just read [1], I'll take the later advice and use test_i18ngrep
> instead.

I think Peff meant that a simple grep would suffice; no need for
test_i18ngrep. In other words (reproducing Peff's example), something
like this:

    tags="fourth-signed sixth-signed seventh-signed" &&
    for i in $tags; do
        git verify-tag -v --raw $i || return 1
    done >expect.stdout 2>expect.stderr.1 &&
    grep GOODSIG <expect.stderr.1 >expect.stderr &&
    git verify-tag -v --raw $tags >actual.stdout 2>actual.stderr.1 &&
    grep GOODSIG <actual.stderr.1 >actual.stderr &&
    test_cmp expect.stdout actual.stdout &&
    test_cmp expect.stderr actual.stderr
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