Re: [PATCH v5 3/4] test-strcmp-offset: created test for strcmp_offset

[Jeff Hostetler <git@jeffhostetler.com>]

On 4/6/2017 4:21 AM, Johannes Schindelin wrote:
> Hi Gábor,
>
> On Thu, 6 Apr 2017, SZEDER Gábor wrote:
>
>> I think this patch should be squashed into the previous commit;  I
>> don't see any reason why the tests should be added in a different
>> commit than the function they are testing.

Will do.

>
> I am of two minds there. In some cases, the newly added test demonstrates
> the intended usage, and therefore makes for a nice documentation. In other
> cases, the new test is large enough to stand on its own, i.e. to merit a
> separate patch (also to make reviewing easier).
>
> In this particular case, I tend to the latter: it is large enough a patch
> that it is easier to review as a separate patch.
>
>>>  t/helper/test-strcmp-offset.c | 64 +++++++++++++++++++++++++++++++++++++++++++
>>>  t/t0065-strcmp-offset.sh      | 11 ++++++++
>>>  4 files changed, 77 insertions(+)
>>>  create mode 100644 t/helper/test-strcmp-offset.c
>>>  create mode 100755 t/t0065-strcmp-offset.sh
>>
>> Sure, tests are good, but I have to wonder how this would scale in the
>> long term, when even such simple functions would get their own
>> t/helper/test-func executable and t/tNNNN-func.sh script.

I think this is the start of a larger conversation on
how we want to handle function-level unit-testing and
outside the scope of this patch series.

>
> True. The proliferation of executables in t/helper/ got a little out of
> hand.
>
> But there is nothing preventing us from consolidating a few of them into a
> single executable, using our wonderful option parsing function with
> OPT_CMDMODE to switch between the different functions.
>
> I could see, for example, how we could consolidate all string-related
> test helpers into a single one, say, test-strings:
>
> t/helper/test-ctype.c
> t/helper/test-regex.c
> t/helper/test-strcmp-offset.c
> t/helper/test-string-list.c
> t/helper/test-line-buffer.c
> t/helper/test-urlmatch-normalization.c
> t/helper/test-wildmatch.c
>
> Also, these helpers seem to be related to index handling and could go into
> a new test-index helper:
>
> t/helper/test-dump-cache-tree.c
> t/helper/test-dump-split-index.c
> t/helper/test-dump-untracked-cache.c
> t/helper/test-index-version.c
> t/helper/test-scrap-cache-tree.c

This is an interesting proposal.  I could go one further and
say we have a single "t/helper/unit-test.c" that has series
of "t/helper/builtin/*.c" commands (using the same mechanism
as the builtin commands in git.exe).  The question then is
how much of the test logic and/or parameters go into the shell
scripts.

But again, all of that is outside my scope here.
Jeff