On Fri, Apr 6, 2018 at 8:58 PM, Taylor Blau <m...@ttaylorr.com> wrote:
> On Fri, Apr 06, 2018 at 03:40:56AM -0400, Eric Sunshine wrote:
>> On Fri, Apr 6, 2018 at 2:53 AM, Eric Sunshine <sunsh...@sunshineco.com> 
>> wrote:
>> One other issue. If "git config --default ..." fails, the --unset line
>> will never be invoked, thus cleanup won't happen.
>> To ensure cleanup, either use:
>>     test_when_finished "git config --unset core.foo" &&
>> earlier in the test (just after the --add line) or use the
>> test_config() function to both set the value and ensure its cleanup.
> Neat. I wasn't aware of 'test_when_finished'. I think that I prefer the
> explicitness of 'test_when_finished "git config ..."' over
> 'test_config()', but I am happy to use whichever is preferred. Since
> t1310 is new, there's no historical precedent to follow. Please let me
> know if you have a preference one way or another.

test_config() is preferred; not only is it shorter but, because it
automates cleanup, there's less opportunity to screw up (like
forgetting to use test_when_finished()).

However, since this config setting needs to be present for only a
single command, you can go even simpler by collapsing the entire test

test_expect_success 'does not use --default when entry present' '
    echo bar >expect &&
    git -c core.foo=bar config --default baz core.foo >actual &&
    test_cmp expect actual

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