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#! /bin/sh
# posix-2.sh - Simple identification tests for POSIX.2 features
# commonly missing or incorrectly implemented.
# Time-stamp: <96/04/10 16:43:48 gildea>
# By Stephen Gildea <gildea@x.org> March 1995
#
# Copyright (c) 1995 Stephen Gildea
# Permission is hereby granted to deal in this Software without restriction.
# THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND.
#
# MODIFIED BY chet@po.cwru.edu to make part of the bash test suite.
# last change: Wed Jun 19 12:24:24 EDT 1996
#
# some of the tests:
#
# shell functions (do we care?)
# var=${var:-val}
# unset
# set --
# IFS parsing
## not exiting with -e and failed "if", the way Ultrix does (Ultrix 4.2?)
# "$@" expands to zero arguments if passed zero arguments
# $SHELL -c 'echo $1' bad good
# test -x
# positional parameters greater than 9
# arithmetic expansion $(( ... ))
# getopts
# For some tests we must run a sub-shell; $TESTSHELL says what to use.
# If set, TESTSHELL must be an absolute pathname.
# For example, on HP-UX 9, /bin/posix/sh is the supposedly-compliant shell.
TESTSHELL=${THIS_SH:-$PWD/../bash}
# these tests create temp files with names $TMPDIR/conf*
: ${TMPDIR:=/tmp}
exitval=0
numtests=0
echo "Testing for POSIX.2 conformance"
newtest()
{
numtests=$(($numtests + 1))
}
testfail()
{
echo "$1 test failed"
exitval=$(($exitval + 1))
}
newtest
empty=""
test "${empty:-ok}" = ok || testfail "empty var colon"
newtest
test "${empty-bad}" = "" || testfail "got \"${empty-bad}\": empty var nocolon"
newtest
test "${unsetvar-ok}" = ok || testfail "unset var"
newtest
unset empty
test "${empty-ok}" = ok || testfail "unset"
newtest
set -- -Z
test "x$1" = x-Z || testfail '\"set -- arg\"'
# this should empty the argument list
newtest
set --
test $# = 0 || testfail "still $# args: \"set --\""
# IFS parsing:
newtest
names=one/good/three
saved_ifs="$IFS"
IFS=/
set $names lose
test "$2" = good || testfail "got \"$2\": IFS parsing"
IFS="$saved_ifs"
# "$@" with 0 arguments should expand to 0 arguments
newtest
cat > $TMPDIR/conftest1 << EOF
$TMPDIR/conftest2 "\$@"
EOF
cat > $TMPDIR/conftest2 << "EOF"
#! /bin/sh
echo $#
EOF
chmod +x $TMPDIR/conftest1 $TMPDIR/conftest2
numargs=$($TESTSHELL $TMPDIR/conftest1)
if [ "$?" != 0 ]; then
testfail 'running $@'
else
test "$numargs" = 0 || testfail '"$@" got '"$numargs args: expansion w 0 args"
fi
rm -f $TMPDIR/conftest1 $TMPDIR/conftest2
newtest
val=$("$TESTSHELL" -c 'echo $1' csh good)
test "$val" = good || testfail "got \"$val\": sh -c"
newtest
# do these tests in a sub-shell because failure will exit
val=$("$TESTSHELL" -c 'echo ${10}' 0 1 2 3 4 5 6 7 8 9 ten 11 2> /dev/null)
test "$val" = ten || testfail "accessing more than 9 positional params"
a=abc_def_ghi
export a
newtest; val=`"$TESTSHELL" -c 'echo "${a%_*}"' 2> /dev/null`
test "$val" = abc_def || testfail "parameter % op"
newtest; val=`"$TESTSHELL" -c 'echo "${a%%_*}"' 2> /dev/null`
test "$val" = abc || testfail "parameter %% op"
newtest; val=`"$TESTSHELL" -c 'echo "${a#*_}"' 2> /dev/null`
test "$val" = def_ghi || testfail "parameter # op"
newtest; val=`"$TESTSHELL" -c 'echo "${a##*_}"' 2> /dev/null`
test "$val" = ghi || testfail "parameter ## op"
newtest
"$TESTSHELL" -c 'export a=value' 2> /dev/null || testfail "export with value"
newtest
a=5; test "$(( ($a+1)/2 ))" = 3 || testfail "arithmetic expansion"
# does "test" support the -x switch?
newtest
touch $TMPDIR/conftest
chmod -x $TMPDIR/conftest
test -x $TMPDIR/conftest && testfail "negative test -x"
chmod +x $TMPDIR/conftest
test -x $TMPDIR/conftest || testfail "positive test -x"
rm -f $TMPDIR/conftest
newtest
test "$OPTIND" = 1 || testfail "OPTIND initial value"
newtest
getopts a: store -a aoptval
if [ "$OPTIND" != 3 ] || [ "$store" != a ] || [ "$OPTARG" != aoptval ]; then
testfail "getopts"
fi
if [ $exitval = 0 ]; then
echo "All tests passed"
else
echo "$exitval of $numtests tests failed"
fi
exit $exitval
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