1 files changed, 44 insertions, 0 deletions
diff --git a/tests/cp/attr-existing.sh b/tests/cp/attr-existing.sh
new file mode 100755
index 0000000..a6ff58b
--- /dev/null
+++ b/tests/cp/attr-existing.sh
@@ -0,0 +1,44 @@
+#!/bin/sh
+# Make sure cp --attributes-only doesn't truncate existing data
+
+# Copyright 2012-2022 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ cp
+
+printf '1' > file1 || framework_failure_
+printf '2' > file2 || framework_failure_
+printf '2' > file2.exp || framework_failure_
+
+cp --attributes-only file1 file2 || fail=1
+cmp file2 file2.exp || fail=1
+
+# coreutils v8.32 and before would remove destination files
+# if hardlinked or the source was not a regular file.
+ln file2 link2 || framework_failure_
+cp -a --attributes-only file1 file2 || fail=1
+cmp file2 file2.exp || fail=1
+
+ln -s file1 sym1 || framework_failure_
+returns_ 1 cp -a --attributes-only sym1 file2 || fail=1
+cmp file2 file2.exp || fail=1
+
+# One can still force removal though
+cp -a --remove-destination --attributes-only sym1 file2 || fail=1
+test -L file2 || fail=1
+cmp file1 file2 || fail=1
+
+Exit $fail