#! /bin/sh
# Copyright (C) 2007, 2008, 2010 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 2, 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/>.

# Test Automake TESTS color output, using the expect(1) program.
# Keep this in sync with the sister test `color.test'.

. ./defs || Exit 1

set -e

TERM=ansi
export TERM

red=''
grn=''
lgn=''
blu=''
std=''

# Check that grep can parse nonprinting characters.
# BSD 'grep' works from a pipe, but not a seekable file.
# GNU or BSD 'grep -a' works on files, but is not portable.
case `echo "$std" | grep .` in
  "$std") ;;
  *) echo "$me: grep can't parse nonprinting characters" >&2; Exit 77;;
esac

# This test requires a working a working `expect' program.
# Creative quoting required to avoid spurious maintainer-check failure.
(set +e; expect -c 'exit ''77'; test $? -eq 77) \
  || skip_ "requires a working expect program"

# Also, if the $MAKE program fails to consider the standard output as a
# tty (this happens with e.g., BSD make and Solaris dmake when they're
# run in parallel mode; see the autoconf manual), there is little point
# in proceeding.
cat > Makefile <<'END'
all:
## Creaive quoting in the `echo' below to avoid risk of spurious output
## matches by `expect', below.
	@test -t 1 && echo "stdout" "is" "a" "tty"
END
cat > expect-check <<'END'
spawn $env(MAKE)
expect {
  "stdout is a tty" { exit 0 }
  default { exit 1 }
}
exit 1
END
MAKE=$MAKE expect -f expect-check \
  || skip_ "make spawned by expect should have a tty stdout"
rm -f check Makefile

# Do the tests.

cat >>configure.in <<END
AC_OUTPUT
END

cat >Makefile.am <<'END'
AUTOMAKE_OPTIONS = color-tests
TESTS = $(check_SCRIPTS)
check_SCRIPTS = pass fail skip xpass xfail
XFAIL_TESTS = xpass xfail
END

cat >pass <<END
#! /bin/sh
exit 0
END

cat >fail <<END
#! /bin/sh
exit 1
END

cat >skip <<END
#! /bin/sh
exit 77
END

cp fail xfail
cp pass xpass
chmod +x pass fail skip xpass xfail

$ACLOCAL
$AUTOMAKE
$AUTOCONF
./configure

test_color ()
{
  # Not a useless use of cat; see above comments about grep.
  cat stdout | grep ": pass" | $FGREP "$grn"
  cat stdout | grep ": fail" | $FGREP "$red"
  cat stdout | grep ": xfail" | $FGREP "$lgn"
  cat stdout | grep ": xpass" | $FGREP "$red"
  cat stdout | grep ": skip" | $FGREP "$blu"
}

test_no_color ()
{
  # Not a useless use of cat; see above comments about grep.
  cat stdout | grep ": pass" | $FGREP "$grn" && Exit 1
  cat stdout | grep ": fail" | $FGREP "$red" && Exit 1
  cat stdout | grep ": xfail" | $FGREP "$lgn" && Exit 1
  cat stdout | grep ": xpass" | $FGREP "$red" && Exit 1
  cat stdout | grep ": skip" | $FGREP "$blu" && Exit 1
  :
}

cat >expect-make <<'END'
spawn $env(MAKE) -e check
expect eof
END

MAKE=$MAKE expect -f expect-make >stdout \
  || { cat stdout; Exit 1; }
cat stdout
test_color

AM_COLOR_TESTS=no MAKE=$MAKE expect -f expect-make >stdout \
  || { cat stdout; Exit 1; }
cat stdout
test_no_color