tests/misc/stty-row-col.sh

   1 #!/bin/sh
   2 # Test "stty" with rows and columns.
   3
   4 # Copyright (C) 1998-2019 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19 # Setting this envvar to a very small value used to cause e.g., 'stty size'
  20 # to generate slightly different output on certain systems.
  21 COLUMNS=80
  22 export COLUMNS
  23
  24 # Make sure we get English-language behavior.
  25 # See the report about a possibly-related Solaris problem by Alexandre Peshansky
  26 # <https://lists.gnu.org/r/bug-coreutils/2004-10/msg00035.html>.
  27 # Currently stty isn't localized, but it might be in the future.
  28 LC_ALL=C
  29 export LC_ALL
  30
  31 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  32 print_ver_ stty
  33
  34 require_controlling_input_terminal_
  35 require_trap_signame_
  36
  37 trap '' TTOU # Ignore SIGTTOU
  38
  39 # Versions of GNU stty from shellutils-1.9.2c and earlier failed
  40 # tests #2 and #4 when run on SunOS 4.1.3.
  41
  42 tests='
  43 1 rows_40_columns_80 40_80
  44 2 rows_1_columns_1 1_1
  45 3 rows_40_columns_80 40_80
  46 4 rows_1 1_80
  47 5 columns_1 1_1
  48 6 rows_40 40_1
  49 7 rows_1 1_1
  50 8 columns_80 1_80
  51 9 rows_30 30_80
  52 10 rows_0x1E 30_80
  53 11 rows_036 30_80
  54 NA LAST NA
  55 '
  56 set $tests
  57
  58 saved_size=$(stty size) && test -n "$saved_size" \
  59   || skip_ "can't get window size"
  60
  61 # Linux virtual consoles issue an error if you
  62 # try to increase their size.  So skip in that case.
  63 if test "x$saved_size" != "x0 0"; then
  64   srow=$(echo $saved_size | cut -d ' ' -f1)
  65   scol=$(echo $saved_size | cut -d ' ' -f2)
  66   stty rows $(expr $srow + 1) cols $(expr $scol + 1) ||
  67     skip_ "can't increase window size"
  68 fi
  69
  70 while :; do
  71   test_name=$1
  72   args=$2
  73   expected_result="$(echo $3|tr _ ' ')"
  74   test "$args" = empty && args=''
  75   test "x$args" = xLAST && break
  76   args=$(echo x$args|tr _ ' '|sed 's/^x//')
  77   if test "$VERBOSE" = yes; then
  78     # echo "testing \$(stty $args; stty size\) = $expected_result ..."
  79     echo "test $test_name... " | tr -d '\n'
  80   fi
  81   stty $args || exit 1
  82   test x"$(stty size 2> /dev/null)" = "x$expected_result" \
  83     && ok=ok || ok=FAIL fail=1
  84   test "$VERBOSE" = yes && echo $ok
  85   shift; shift; shift
  86 done
  87
  88 set x $saved_size
  89 stty rows $2 columns $3 || exit 1
  90
  91 Exit $fail