for-each-ref: Do not lookup objects when they will not be used

diff --git a/t/t4102-apply-rename.sh b/t/t4102-apply-rename.sh
index d42abff1ad59343fa1c84bded9a82c3212370da0..1597965241c3566aa3a14e986fd5a630fb348479 100755 (executable)
--- a/t/t4102-apply-rename.sh
+++ b/t/t4102-apply-rename.sh
@@ -31,14 +31,16 @@ test_expect_success setup \
 test_expect_success apply \
     'git apply --index --stat --summary --apply test-patch'
 
-if [ "$(git config --get core.filemode)" = false ]
+if test "$(git config --bool core.filemode)" = false
 then
        say 'filemode disabled on the filesystem'
 else
-       test_expect_success validate \
-           'test -f bar && ls -l bar | grep "^-..x......"'
+       test_set_prereq FILEMODE
 fi
 
+test_expect_success FILEMODE validate \
+           'test -f bar && ls -l bar | grep "^-..x......"'
+
 test_expect_success 'apply reverse' \
     'git apply -R --index --stat --summary --apply test-patch &&
      test "$(cat foo)" = "This is foo"'