t3600: clean up permissions test properly

The test of failing `git rm -f` removes the write permissions on the
test directory, but fails to restore them if the test fails. This
means that the test temporary directory cannot be cleaned up, which
means that subsequent attempts to run the test fail mysteriously.

Instead, do the cleanup in a `test_when_finished` block so that it
can't be skipped.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t3600-rm.sh b/t/t3600-rm.sh
index 5f9913b..f8568f8 100755 (executable)
--- a/t/t3600-rm.sh
+++ b/t/t3600-rm.sh
@@ -97,9 +97,9 @@ test_expect_success FUNNYNAMES \
 embedded'"
 
 test_expect_success SANITY 'Test that "git rm -f" fails if its rm fails' '
+       test_when_finished "chmod 775 ." &&
        chmod a-w . &&
-       test_must_fail git rm -f baz &&
-       chmod 775 .
+       test_must_fail git rm -f baz
 '
 
 test_expect_success \