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      1 #!/bin/sh
      2 # Exercise zdiff with two compressed inputs.
      3 # Before gzip-1.4, this would fail.
      4 
      5 # Copyright (C) 2009-2016 Free Software Foundation, Inc.
      6 
      7 # This program is free software: you can redistribute it and/or modify
      8 # it under the terms of the GNU General Public License as published by
      9 # the Free Software Foundation, either version 3 of the License, or
     10 # (at your option) any later version.
     11 
     12 # This program is distributed in the hope that it will be useful,
     13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     15 # GNU General Public License for more details.
     16 
     17 # You should have received a copy of the GNU General Public License
     18 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
     19 # limit so don't run it by default.
     20 
     21 . "${srcdir=.}/init.sh"; path_prepend_ .
     22 
     23 echo a > a || framework_failure_
     24 echo b > b || framework_failure_
     25 gzip a b || framework_failure_
     26 
     27 cat <<EOF > exp
     28 1c1
     29 < a
     30 ---
     31 > b
     32 EOF
     33 
     34 fail=0
     35 zdiff a.gz b.gz > out 2>&1
     36 test $? = 1 || fail=1
     37 
     38 compare exp out || fail=1
     39 
     40 rm -f out
     41 # expect success, for equal files
     42 zdiff a.gz a.gz > out 2> err || fail=1
     43 # expect no output
     44 test -s out && fail=1
     45 # expect no stderr
     46 test -s err && fail=1
     47 
     48 Exit $fail
     49