'
test_expect_success '--no-optional-locks prevents index update' '
- test-chmtime =1234567890 .git/index &&
+ test-tool chmtime =1234567890 .git/index &&
git --no-optional-locks status &&
- test-chmtime --get .git/index >out &&
+ test-tool chmtime --get .git/index >out &&
grep ^1234567890 out &&
git status &&
- test-chmtime --get .git/index >out &&
+ test-tool chmtime --get .git/index >out &&
! grep ^1234567890 out
'