Re: [RFC/PATCH] test: skip clean-up when running under --immediate mode

> Some tests try to be too careful about cleaning themselves up and
> do
> 
>     test_expect_success description '
>         set-up some test refs and/or configuration &&
>         test_when_finished "revert the above changes" &&
> 	the real test
>     '
> 
> Which is nice to make sure that a potential failure would not have
> unexpected interaction with the next test. This however interferes when
> "the real test" fails and we want to see what is going on, by running the
> test with --immediate mode and descending into its trash directory after
> the test stops. The precondition to run the real test and cause it to fail
> is all gone after the clean-up procedure defined by test_when_finished is
> done.
> 
> Update test_run_ which is the workhorse of running a test script
> called from test_expect_success and test_expect_failure, so that we do not
> run clean-up script defined with test_when_finished when a test that is
> expected to succeed fails under the --immediate mode.
> 
> Signed-off-by: Junio C Hamano <gitster@pobox.com>
> ---
> 
>  * Likes, dislikes?