Re: [PATCH 6/9] t4013: add tests for log.diffMerges config

Ævar Arnfjörð Bjarmason [off-list ref] writes:

quoted

+test_expect_success 'deny wrong log.diffMerges config' '
+	git config log.diffMerges wrong-value &&
+	test_expect_code 128 git log &&
+	git config --unset log.diffMerges

Don't use "git config", but "test_config" at the start, then you don't
need the --unset at the end, it'll happen automatically. Ditto for the
following tests.

More importantly, test_config arranges the unset to happen even if
a step in the middle (e.g. test_expect_code in the above example)
fails.  In the posted version, the control would not reach the
"git config --unset" and leaves the configuration behind.

And that is the biggest reason why the above should use test_config.

Thanks for a good suggestion.