diff options
Diffstat (limited to '')
| -rwxr-xr-x | tests/misc/tty.sh | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/tests/misc/tty.sh b/tests/misc/tty.sh new file mode 100755 index 0000000..b1c5267 --- /dev/null +++ b/tests/misc/tty.sh @@ -0,0 +1,43 @@ +#!/bin/sh +# Test 'tty'. + +# Copyright 2017-2020 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/>. + +# Make sure there's a tty on stdin. +. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src +print_ver_ tty + +if test -t 0; then + tty || fail=1 + tty -s || fail=1 +fi + +returns_ 1 tty </dev/null || fail=1 +returns_ 1 tty -s </dev/null || fail=1 +returns_ 1 tty <&- 2>/dev/null || fail=1 +returns_ 1 tty -s <&- || fail=1 + +returns_ 2 tty a || fail=1 +returns_ 2 tty -s a || fail=1 + +if test -w /dev/full && test -c /dev/full; then + if test -t 0; then + returns_ 3 tty >/dev/full || fail=1 + fi + returns_ 3 tty </dev/null >/dev/full || fail=1 +fi + +Exit $fail |