test_rev_parse 'in repo.git/sub/dir' false true true sub/dir/
cd ../../../.. || exit 1
+test_expect_success 'detecting gitdir when cwd is in a subdir of gitdir' '
+ (expected=$(pwd)/repo.git &&
+ cd repo.git/refs &&
+ unset GIT_DIR &&
+ test "$expected" = "$(git rev-parse --git-dir)")
+'
+
test_expect_success 'repo finds its work tree' '
(cd repo.git &&
: > work/sub/dir/untracked &&