t1415: avoid direct filesystem access for writing refs

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t1415-worktree-refs.sh b/t/t1415-worktree-refs.sh
index 7ab91241ab7c9fe305ab3fc85326f06aee5e5c49..011a1a5e5e3611b425688ea95d392432d5fceb37 100755 (executable)
--- a/t/t1415-worktree-refs.sh
+++ b/t/t1415-worktree-refs.sh
@@ -37,9 +37,8 @@ test_expect_success 'resolve main-worktree/HEAD' '
 '
 
 test_expect_success 'ambiguous main-worktree/HEAD' '
-       mkdir -p .git/refs/heads/main-worktree &&
-       test_when_finished rm -f .git/refs/heads/main-worktree/HEAD &&
-       cp .git/HEAD .git/refs/heads/main-worktree/HEAD &&
+       test_when_finished git update-ref -d refs/heads/main-worktree/HEAD &&
+       git update-ref refs/heads/main-worktree/HEAD $(git rev-parse HEAD) &&
        git rev-parse main-worktree/HEAD 2>warn &&
        grep "main-worktree/HEAD.*ambiguous" warn
 '
@@ -51,9 +50,8 @@ test_expect_success 'resolve worktrees/xx/HEAD' '
 '
 
 test_expect_success 'ambiguous worktrees/xx/HEAD' '
-       mkdir -p .git/refs/heads/worktrees/wt1 &&
-       test_when_finished rm -f .git/refs/heads/worktrees/wt1/HEAD &&
-       cp .git/HEAD .git/refs/heads/worktrees/wt1/HEAD &&
+       git update-ref refs/heads/worktrees/wt1/HEAD $(git rev-parse HEAD) &&
+       test_when_finished git update-ref -d refs/heads/worktrees/wt1/HEAD &&
        git rev-parse worktrees/wt1/HEAD 2>warn &&
        grep "worktrees/wt1/HEAD.*ambiguous" warn
 '