1 files changed, 36 insertions, 0 deletions
diff --git a/tests/cp/backup-is-src.sh b/tests/cp/backup-is-src.sh
new file mode 100755
index 0000000..9903603
--- /dev/null
+++ b/tests/cp/backup-is-src.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+# Test cp backup to source file.
+
+# Copyright (C) 1998-2020 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
+
+echo a > a || framework_failure_
+echo a-tilde > a~ || framework_failure_
+
+# This cp command should exit nonzero.
+cp --b=simple a~ a > out 2>&1 && fail=1
+
+sed "s,cp:,XXX:," out > out2
+
+cat > exp <<\EOF
+XXX: backing up 'a' might destroy source;  'a~' not copied
+EOF
+
+compare exp out2 || fail=1
+
+Exit $fail