On Sun, Jun 9, 2013 at 3:35 PM, Junio C Hamano <gits...@pobox.com> wrote:
> Felipe Contreras <felipe.contre...@gmail.com> writes:
>
>> On Sun, Jun 9, 2013 at 2:20 PM, Junio C Hamano <gits...@pobox.com> wrote:
>>> Felipe Contreras <felipe.contre...@gmail.com> writes:
>>>
>>>> On Sun, Jun 9, 2013 at 1:30 PM, Junio C Hamano <gits...@pobox.com> wrote:
>>>>
>>>>> --- a/t/test-lib-functions.sh
>>>>> +++ b/t/test-lib-functions.sh
>>>>> @@ -606,6 +606,18 @@ test_cmp() {
>>>>> $GIT_TEST_CMP "$@"
>>>>> }
>>>>>
>>>>> +# Check if the file expected to be empty is indeed empty, and barfs
>>>>> +# otherwise.
>>>>> +
>>>>> +test_output_must_be_empty () {
>>>>
>>>> Why such a big name? test_empty() does the trick.
>>>
>>> Primarily in order to avoid that exact name "test_empty" that others
>>> may want to use for a helper to check that the contents of a string
>>> variable is empty.
>>
>> Which is never going to happen.
>
> For anything, a failure from
>
> test -z "$mustbeemptystring"
>
> in the test suite is much harder to diagnose because there is
> nothing left in the trash directory to inspect, as opposed to
>
> test ! -s "$mustbeemptyfile"
>
> where you can just go there and inspect yourself.
Except that it's usually gone. And I challenge you to find a instance
where there's a test -z "$mustbeemptystring" that throws a test
failure. It will take you time to find it (if there's any).
Moreover, by that rationale, we should call test_cmp, test_file_cmp,
but there's no need, because that's rarely needed (if at all). There
will not be a need for test_string_must_be_empty() just like there's
no need for test_string_cmp().
--
Felipe Contreras
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