1 files changed, 74 insertions, 0 deletions
diff --git a/testsuite/follow-symlinks.sh b/testsuite/follow-symlinks.sh
new file mode 100644
index 0000000..09dde3f
--- /dev/null
+++ b/testsuite/follow-symlinks.sh
@@ -0,0 +1,74 @@
+#!/bin/sh
+# Test --follow-symlinks option
+
+# Copyright (C) 2016 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/>.
+. "${srcdir=.}/testsuite/init.sh"; path_prepend_ ./sed
+print_ver_ sed
+
+fail=0
+
+#
+# 'F' with/out follow-symlinks
+#
+echo dummy > a || framework_failure_
+ln -s a la1 || framework_failure_
+ln -s la1 la2 || framework_failure_
+
+echo a > exp-a || framework_failure_
+echo la1 > exp-la1 || framework_failure_
+
+# Sanity-check: the real file
+sed 'F;Q' a > out-a || fail=1
+compare_ exp-a out-a || fail=1
+
+# Without follow-symlinks
+sed -n 'F' la1 > out-la1 || fail=1
+compare_ exp-la1 out-la1 || fail=1
+
+# With follow-symlinks
+sed -n --follow-symlinks 'F' la1 > out-la1-flw || fail=1
+compare_ exp-a out-la1-flw || fail=1
+
+# With follow-symlinks and two levels of indirections
+sed -n --follow-symlinks 'F' la2 > out-la2-flw || fail=1
+compare_ exp-a out-la2-flw || fail=1
+
+# Two symlinks input
+# (implementation note: utils.c:follow_symlinks() uses a static buffer
+#  which will be non-empty on the second invocation)
+printf "%s\n" a a > exp-two-symlinks || framework_failure_
+sed --follow-symlinks -n 'F' la1 la2 > out-two-symlinks || fail=1
+compare_ exp-two-symlinks out-two-symlinks || fail=1
+
+# non-existing input with --follow-symlink
+# implementation note: lstat() will be called before open(), thus 'cannot stat'.
+cat <<\EOF >exp-stat || framework_failure_
+sed: cannot stat badfile:
+EOF
+returns_ 4 sed --follow-symlinks 'F' badfile >/dev/null 2>err-stat || fail=1
+
+# trim the filename/errno message (using sed itself...)
+sed -i 's/badfile:.*$/badfile:/' err-stat || framework_failure_
+compare_ exp-stat err-stat || fail=1
+
+
+# symlinks with absolute path
+ln -s "$PWD/a" la-abs || framework_failure_
+echo "$PWD/a" > exp-la-abs || framework_failure_
+sed -n --follow-symlinks 'F' la-abs > out-la-abs || fail=1
+compare_ exp-la-abs out-la-abs || fail=1
+
+Exit $fail