########################################################################

#                                                                      #

#               This software is part of the ast package               #

#          Copyright (c) 1982-2012 AT&T Intellectual Property          #

#                      and is licensed under the                       #

#                 Eclipse Public License, Version 1.0                  #

#                    by AT&T Intellectual Property                     #

#                                                                      #

#                A copy of the License is available at                 #

#          http://www.eclipse.org/org/documents/epl-v10.html           #

#         (with md5 checksum b35adb5213ca9657e911e9befb180842)         #

#                                                                      #

#              Information and Software Systems Research               #

#                            AT&T Research                             #

#                           Florham Park NJ                            #

#                                                                      #

#                  David Korn <dgk@research.att.com>                   #

#                                                                      #

########################################################################

function err_exit

{

	print -u2 -n "\t"

	print -u2 -r ${Command}[$1]: "${@:2}"

	let Errors+=1

}

alias err_exit='err_exit $LINENO'

Command=${0##*/}

integer Errors=0

{

x=abc

x+=def ;} 2> /dev/null

if	[[ $x != abcdef ]]

then	err_exit 'abc+def != abcdef'

fi

integer i=3

{ i+=4;} 2> /dev/null

if	(( i != 7 ))

then	err_exit '3+4!=7'

fi

iarray=( one two three )

{ iarray+= (four five six) ;} 2> /dev/null

if	[[ ${iarray[@]} != 'one two three four five six' ]]

then	err_exit 'index array append fails'

fi

unset iarray

iarray=one

{ iarray+= (four five six) ;} 2> /dev/null

if	[[ ${iarray[@]} != 'one four five six' ]]

then	err_exit 'index array append to scalar fails'

fi

typeset -A aarray

aarray=( [1]=1 [3]=4 [xyz]=xyz )

aarray+=( [2]=2 [3]=3 [foo]=bar )

if	[[ ${aarray[3]} != 3 ]]

then	err_exit 'associative array append fails'

fi

if	[[ ${#aarray[@]} != 5 ]]

then	err_exit 'number of elements of associative array append fails'

fi

point=(x=1 y=2)

point+=( y=3 z=4)

if	[[ ${point.y} != 3 ]]

then	err_exit 'compound append fails'

fi

if	[[ ${point.x} != 1 ]]

then	err_exit 'compound append to compound variable unsets existing variables'

fi

unset foo

foo=one

foo+=(two)

if	[[ ${foo[@]} != 'one two' ]]

then	err_exit 'array append to non array variable fails'

fi

unset foo

foo[0]=(x=3)

foo+=(x=4)

[[ ${foo[1].x} == 4 ]] || err_exit 'compound append to index array not working'

[[ ${foo[0].x} == 3 ]] || err_exit 'compound append to index array unsets existing variables'

unset foo

foo=a

foo+=''

[[ $foo == 'a' ]] || err_exit 'appending an empty string not working'

unset x z arr

typeset -a x=(a b)

x+=(c d)

exp='typeset -a x=(a b c d)'

[[ $(typeset -p x) == "$exp" ]] || err_exit 'append (c d) to index array not working'

typeset -a arr=(a=b b=c)

arr+=(c=d d=e)

exp='typeset -a arr=(a\=b b\=c c\=d d\=e)'

[[ $(typeset -p arr) == "$exp" ]] || err_exit 'append (c=d d=e) to index array not working'

exp='typeset -a z=(a\=b b\=c d\=3 e f\=l)'

typeset -a z=(a=b b=c)

{ z+=(d=3 e f=l); } 2> /dev/null

[[ $(typeset -p z) == "$exp" ]] || err_exit 'append (d=3 e f=l) to index array not working'

unset arr2

exp='typeset -a arr2=(b\=c :)'

typeset -a arr2

arr2+=(b=c :)

[[ $(typeset -p arr2) == "$exp" ]] || err_exit 'append (b=c :) to index array not working'

unset arr2

exp='typeset -a arr2=(b\=c xxxxx)'

typeset -a arr2

{

	arr2+=(b=c xxxxx)

} 2> /dev/null

[[ $(typeset -p arr2) == "$exp" ]] || err_exit 'append (b=c xxxxx) to index array not working'

exit $((Errors<125?Errors:125))