1 files changed, 56 insertions, 0 deletions
diff --git a/testsuite/posix-mode-N.sh b/testsuite/posix-mode-N.sh
new file mode 100755
index 0000000..344ec19
--- /dev/null
+++ b/testsuite/posix-mode-N.sh
@@ -0,0 +1,56 @@
+#!/bin/sh
+# Test 'N' command with/without posix conformity
+
+# Copyright (C) 2016-2018 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=.}/testsuite/init.sh"; path_prepend_ ./sed
+print_ver_ sed
+
+# in/exp as identical, but using 'exp' for both input and output
+# will cause unneeded confusion when looking at the logs.
+printf "A\nB\n" > in1   || framework_failure_
+cp in1 exp1             || framework_failure_
+printf "A\n" > in2      || framework_failure_
+cp in2 exp2             || framework_failure_
+
+# If there is a 'next' line, N behaves the same regardless of posixicity
+sed N in1 > out1 || fail=1
+compare exp1 out1 || fail=1
+
+sed --posix N in1 > out2 || fail=1
+compare exp1 out2 || fail=1
+
+POSIXLY_CORRECT=y sed N in1 > out3 || fail=1
+compare exp1 out3 || fail=1
+
+
+# If there is no 'next' line,
+# gnu-N quits with printing
+# posix-N quits without printing.
+sed N in2 > out4 || fail=1
+compare exp2 out4 || fail=1
+
+sed --posix N in2 > out5 || fail=1
+compare /dev/null out5 || fail=1
+
+POSIXLY_CORRECT=y sed N in2 > out6 || fail=1
+compare /dev/null out6 || fail=1
+
+# exception: gnu-mode N but no default output, should not print anything.
+sed -n N in2 > out7 || fail=1
+compare /dev/null out7 || fail=1
+
+
+Exit $fail