1 files changed, 63 insertions, 0 deletions
diff --git a/tests/cp/into-self b/tests/cp/into-self
new file mode 100755
index 0000000..79c727a
--- /dev/null
+++ b/tests/cp/into-self
@@ -0,0 +1,63 @@
+#!/bin/sh
+# Confirm that copying a directory into itself gets a proper diagnostic.
+
+# Copyright (C) 2001, 2002, 2004, 2006 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 2 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# In 4.0.35 and earlier, `mkdir dir && cp -R dir dir' would produce this:
+#   cp: won't create hard link `dir/dir/dir' to directory `'
+# Now it gives this:
+#   cp: can't copy a directory `dir' into itself `dir/dir'
+
+if test "$VERBOSE" = yes; then
+  set -x
+  cp --version
+fi
+
+. $srcdir/../envvar-check
+. $srcdir/../lang-default
+
+pwd=`pwd`
+t0=`echo "$0"|sed 's,.*/,,'`.tmp;tmp=$t0/$$
+trap 'status=$?; cd "$pwd" && rm -rf $t0 && exit $status' 0
+trap '(exit $?); exit' 1 2 13 15
+
+framework_failure=0
+mkdir -p $tmp || framework_failure=1
+cd $tmp || framework_failure=1
+
+mkdir dir || framework_failure=1
+
+if test $framework_failure = 1; then
+  echo 'failure in testing framework' 1>&2
+  (exit 1); exit 1
+fi
+
+fail=0
+
+# This command should exit nonzero.
+cp -R dir dir 2> out && fail=1
+
+cat > exp <<\EOF
+cp: cannot copy a directory, `dir', into itself, `dir/dir'
+EOF
+#'
+
+cmp out exp || fail=1
+test $fail = 1 && diff out exp 2> /dev/null
+
+(exit $fail); exit $fail