bug#22471: ert batch should print compile parsable error messages

[Phillip Lord]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: phillip.lord@russet.org.uk (Phillip Lord)
>> Date: Wed, 27 Jan 2016 09:15:44 +0000
>> 
>> 
>> Currently, when running in batch, ert prints out messages like so:
>> 
>> 
>> Running 24 tests (2016-01-27 09:05:17+0000)
>>    passed   1/24  buffer-string=
>>    passed   2/24  buffer=
>> ...
>>    passed  22/24  sisyphus-test-with-find-file
>>    passed  23/24  to-string
>>    passed  24/24  with-temp-buffers
>> 
>> Ran 24 tests, 23 results as expected, 1 unexpected (2016-01-27 09:05:18+0000)
>> 
>> 1 unexpected results:
>>    FAILED  crash-out
>> 
>> It would be nice to add some compilation-mode parsable data to this. So,
>> something like
>> 
>> 
>>    passed   1/24  buffer-string=  (in ./test.sisyphus-test.el:22:)
>
> FWIW, I have never seen a test suite that displayed in
> compilation-mode compatible format.  If we do that (and I'm
> necessarily opposed to that), we'd be the odd one out, I think.

There's a couple in the compilation mode regexp -- cucumber, ruby and
perl test harnesses and so forth.

I put a quick attempt at this up on feature/parsable-ert-output.

   passed  22/24  sisyphus-test-with-find-file at test/sisyphus-test.el line 
277.
   passed  23/24  to-string at test/sisyphus-test.el line 96.
   passed  24/24  with-temp-buffers at test/sisyphus-test.el line 232.

Works, but makes for rather a cluttered output.

Thoughts welcome.

Phil