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Diffstat (limited to 'tests/cp/thru-dangling.sh')
-rwxr-xr-x | tests/cp/thru-dangling.sh | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/tests/cp/thru-dangling.sh b/tests/cp/thru-dangling.sh new file mode 100755 index 000000000..f8527af8d --- /dev/null +++ b/tests/cp/thru-dangling.sh @@ -0,0 +1,41 @@ +#!/bin/sh +# Ensure that cp works as documented, when the destination is a dangling symlink + +# Copyright (C) 2007-2012 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 <http://www.gnu.org/licenses/>. + +. "${srcdir=.}/init.sh"; path_prepend_ ../src +print_ver_ cp + +ln -s no-such dangle || framework_failure_ +echo hi > f || framework_failure_ +echo hi > exp || framework_failure_ +echo "cp: not writing through dangling symlink 'dangle'" \ + > exp-err || framework_failure_ + + +# Starting with 6.9.90, this usage fails, by default: +cp f dangle > err 2>&1 && fail=1 + +compare exp-err err || fail=1 +test -f no-such && fail=1 + +# But you can set POSIXLY_CORRECT to get the historical behavior. +env POSIXLY_CORRECT=1 cp f dangle > out 2>&1 || fail=1 +cat no-such >> out || fail=1 + +compare exp out || fail=1 + +Exit $fail |