xref: /titanic_44/usr/src/lib/libshell/common/tests/attributes.sh (revision 3e14f97f673e8a630f076077de35afdd43dc1587)
1da2e3ebdSchin########################################################################
2da2e3ebdSchin#                                                                      #
3da2e3ebdSchin#               This software is part of the ast package               #
4*3e14f97fSRoger A. Faulkner#          Copyright (c) 1982-2010 AT&T Intellectual Property          #
5da2e3ebdSchin#                      and is licensed under the                       #
6da2e3ebdSchin#                  Common Public License, Version 1.0                  #
77c2fbfb3SApril Chin#                    by AT&T Intellectual Property                     #
8da2e3ebdSchin#                                                                      #
9da2e3ebdSchin#                A copy of the License is available at                 #
10da2e3ebdSchin#            http://www.opensource.org/licenses/cpl1.0.txt             #
11da2e3ebdSchin#         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         #
12da2e3ebdSchin#                                                                      #
13da2e3ebdSchin#              Information and Software Systems Research               #
14da2e3ebdSchin#                            AT&T Research                             #
15da2e3ebdSchin#                           Florham Park NJ                            #
16da2e3ebdSchin#                                                                      #
17da2e3ebdSchin#                  David Korn <dgk@research.att.com>                   #
18da2e3ebdSchin#                                                                      #
19da2e3ebdSchin########################################################################
20da2e3ebdSchinfunction err_exit
21da2e3ebdSchin{
22da2e3ebdSchin	print -u2 -n "\t"
23da2e3ebdSchin	print -u2 -r ${Command}[$1]: "${@:2}"
24da2e3ebdSchin	let Errors+=1
25da2e3ebdSchin}
26da2e3ebdSchinalias err_exit='err_exit $LINENO'
27da2e3ebdSchin
28da2e3ebdSchinCommand=${0##*/}
29da2e3ebdSchininteger Errors=0
3034f9b3eeSRoland Mainz
3134f9b3eeSRoland Mainztmp=$(mktemp -dt) || { err_exit mktemp -dt failed; exit 1; }
3234f9b3eeSRoland Mainztrap "cd /; rm -rf $tmp" EXIT
3334f9b3eeSRoland Mainz
34da2e3ebdSchinr=readonly u=Uppercase l=Lowercase i=22 i8=10 L=abc L5=def uL5=abcdef xi=20
35da2e3ebdSchinx=export t=tagged H=hostname LZ5=026 RZ5=026 Z5=123 lR5=ABcdef R5=def n=l
36da2e3ebdSchinfor option in u l i i8 L L5 LZ5 RZ5 Z5 r x H t R5 uL5 lR5 xi n
37da2e3ebdSchindo	typeset -$option $option
38da2e3ebdSchindone
39da2e3ebdSchin(r=newval) 2> /dev/null && err_exit readonly attribute fails
40da2e3ebdSchini=i+5
41da2e3ebdSchinif	((i != 27))
42da2e3ebdSchinthen	err_exit integer attributes fails
43da2e3ebdSchinfi
44da2e3ebdSchinif	[[ $i8 != 8#12 ]]
45da2e3ebdSchinthen	err_exit integer base 8 fails
46da2e3ebdSchinfi
47da2e3ebdSchinif	[[ $u != UPPERCASE ]]
48da2e3ebdSchinthen	err_exit uppercase fails
49da2e3ebdSchinfi
50da2e3ebdSchinif	[[ $l != lowercase ]]
51da2e3ebdSchinthen	err_exit lowercase fails
52da2e3ebdSchinfi
53da2e3ebdSchinif	[[ $n != lowercase ]]
54da2e3ebdSchinthen	err_exit reference variables fail
55da2e3ebdSchinfi
56da2e3ebdSchinif	[[ t=tagged != $(typeset -t) ]]
57da2e3ebdSchinthen	err_exit tagged fails
58da2e3ebdSchinfi
59da2e3ebdSchinif	[[ t != $(typeset +t) ]]
60da2e3ebdSchinthen	err_exit tagged fails
61da2e3ebdSchinfi
62da2e3ebdSchinif	[[ $Z5 != 00123 ]]
63da2e3ebdSchinthen	err_exit zerofill fails
64da2e3ebdSchinfi
65da2e3ebdSchinif	[[ $RZ5 != 00026 ]]
66da2e3ebdSchinthen	err_exit right zerofill fails
67da2e3ebdSchinfi
68da2e3ebdSchinL=12345
69da2e3ebdSchinif	[[ $L != 123 ]]
70da2e3ebdSchinthen	err_exit leftjust fails
71da2e3ebdSchinfi
72da2e3ebdSchinif	[[ $L5 != "def  " ]]
73da2e3ebdSchinthen	err_exit leftjust fails
74da2e3ebdSchinfi
75da2e3ebdSchinif	[[ $uL5 != ABCDE ]]
76da2e3ebdSchinthen	err_exit leftjust uppercase fails
77da2e3ebdSchinfi
78da2e3ebdSchinif	[[ $lR5 != bcdef ]]
79da2e3ebdSchinthen	err_exit rightjust fails
80da2e3ebdSchinfi
81da2e3ebdSchinif	[[ $R5 != "  def" ]]
82da2e3ebdSchinthen	err_exit rightjust fails
83da2e3ebdSchinfi
84da2e3ebdSchinif	[[ $($SHELL -c 'echo $x') != export ]]
85da2e3ebdSchinthen	err_exit export fails
86da2e3ebdSchinfi
87da2e3ebdSchinif	[[ $($SHELL -c 'xi=xi+4;echo $xi') != 24 ]]
88da2e3ebdSchinthen	err_exit export attributes fails
89da2e3ebdSchinfi
90da2e3ebdSchinx=$(foo=abc $SHELL <<!
91da2e3ebdSchin	foo=bar
92da2e3ebdSchin	$SHELL -c  'print \$foo'
93da2e3ebdSchin!
94da2e3ebdSchin)
95da2e3ebdSchinif	[[ $x != bar ]]
96da2e3ebdSchinthen	err_exit 'environment variables require re-export'
97da2e3ebdSchinfi
98da2e3ebdSchin(typeset + ) > /dev/null 2>&1 || err_exit 'typeset + not working'
99da2e3ebdSchin(typeset -L-5 buf="A" 2>/dev/null)
100da2e3ebdSchinif [[ $? == 0 ]]
101da2e3ebdSchinthen	err_exit 'typeset allows negative field for left/right adjust'
102da2e3ebdSchinfi
103da2e3ebdSchina=b
104da2e3ebdSchinreadonly $a=foo
105da2e3ebdSchinif	[[ $b != foo ]]
106da2e3ebdSchinthen	err_exit 'readonly $a=b not working'
107da2e3ebdSchinfi
108da2e3ebdSchinif	[[ $(export | grep '^PATH=') != PATH=* ]]
109da2e3ebdSchinthen	err_exit 'export not working'
110da2e3ebdSchinfi
111da2e3ebdSchinpicture=(
112da2e3ebdSchin	bitmap=/fruit
113da2e3ebdSchin	size=(typeset -E x=2.5)
114da2e3ebdSchin)
115da2e3ebdSchinstring="$(print $picture)"
116da2e3ebdSchinif [[ "${string}" != *'size=( typeset -E'* ]]
117da2e3ebdSchinthen	err_exit 'print of compound exponential variable not working'
118da2e3ebdSchinfi
119da2e3ebdSchinsz=(typeset -E y=2.2)
120da2e3ebdSchinstring="$(print $sz)"
121da2e3ebdSchinif [[ "${sz}" == *'typeset -E -F'* ]]
122da2e3ebdSchinthen 	err_exit 'print of exponential shows both -E and -F attributes'
123da2e3ebdSchinfi
12434f9b3eeSRoland Mainzprint 'typeset -i m=48/4+1;print -- $m' > $tmp/script
12534f9b3eeSRoland Mainzchmod +x $tmp/script
126da2e3ebdSchintypeset -Z2 m
12734f9b3eeSRoland Mainzif	[[ $($tmp/script) != 13 ]]
128da2e3ebdSchinthen	err_exit 'attributes not cleared for script execution'
129da2e3ebdSchinfi
13034f9b3eeSRoland Mainzprint 'print VAR=$VAR' > $tmp/script
1317c2fbfb3SApril Chintypeset -L70 VAR=var
13234f9b3eeSRoland Mainz$tmp/script > $tmp/script.1
13334f9b3eeSRoland Mainz[[ $(< $tmp/script.1) == VAR= ]] || err_exit 'typeset -L should not be inherited'
134da2e3ebdSchintypeset -Z  LAST=00
135da2e3ebdSchinunset -f foo
136da2e3ebdSchinfunction foo
137da2e3ebdSchin{
138da2e3ebdSchin        if [[ $1 ]]
139da2e3ebdSchin        then    LAST=$1
140da2e3ebdSchin        else    ((LAST++))
141da2e3ebdSchin        fi
142da2e3ebdSchin}
143da2e3ebdSchinfoo 1
144da2e3ebdSchinif	(( ${#LAST} != 2 ))
145da2e3ebdSchinthen	err_exit 'LAST!=2'
146da2e3ebdSchinfi
147da2e3ebdSchinfoo
148da2e3ebdSchinif	(( ${#LAST} != 2 ))
149da2e3ebdSchinthen	err_exit 'LAST!=2'
150da2e3ebdSchinfi
1517c2fbfb3SApril Chin[[ $(set | grep LAST) == LAST=02 ]] || err_exit "LAST not correct in set list"
152da2e3ebdSchinset -a
153da2e3ebdSchinunset foo
154da2e3ebdSchinfoo=bar
155da2e3ebdSchinif	[[ $(export | grep ^foo=) != 'foo=bar' ]]
156da2e3ebdSchinthen	err_exit 'all export not working'
157da2e3ebdSchinfi
158da2e3ebdSchinunset foo
159da2e3ebdSchinread foo <<!
160da2e3ebdSchinbar
161da2e3ebdSchin!
162da2e3ebdSchinif	[[ $(export | grep ^foo=) != 'foo=bar' ]]
163da2e3ebdSchinthen	err_exit 'all export not working with read'
164da2e3ebdSchinfi
165da2e3ebdSchinif	[[ $(typeset | grep PS2) == PS2 ]]
166da2e3ebdSchinthen	err_exit 'typeset without arguments outputs names without attributes'
167da2e3ebdSchinfi
168da2e3ebdSchinunset a z q x
169da2e3ebdSchinw1=hello
170da2e3ebdSchinw2=world
171da2e3ebdSchint1="$w1 $w2"
172da2e3ebdSchinif	(( 'a' == 97 ))
173da2e3ebdSchinthen	b1=aGVsbG8gd29ybGQ=
174da2e3ebdSchin	b2=aGVsbG8gd29ybGRoZWxsbyB3b3JsZA==
175da2e3ebdSchinelse	b1=iIWTk5ZAppaZk4Q=
176da2e3ebdSchin	b2=iIWTk5ZAppaZk4SIhZOTlkCmlpmThA==
177da2e3ebdSchinfi
178da2e3ebdSchinz=$b1
179da2e3ebdSchintypeset -b x=$b1
180da2e3ebdSchin[[ $x == "$z" ]] || print -u2 'binary variable not expanding correctly'
181da2e3ebdSchin[[  $(printf "%B" x) == $t1 ]] || err_exit 'typeset -b not working'
182da2e3ebdSchintypeset -b -Z5 a=$b1
183da2e3ebdSchin[[  $(printf "%B" a) == $w1 ]] || err_exit 'typeset -b -Z5 not working'
184da2e3ebdSchintypeset -b q=$x$x
185da2e3ebdSchin[[ $q == $b2 ]] || err_exit 'typeset -b not working with concatination'
186da2e3ebdSchin[[  $(printf "%B" q) == $t1$t1 ]] || err_exit 'typeset -b concatination not working'
187da2e3ebdSchinx+=$b1
188da2e3ebdSchin[[ $x == $b2 ]] || err_exit 'typeset -b not working with append'
189da2e3ebdSchin[[  $(printf "%B" x) == $t1$t1 ]] || err_exit 'typeset -b append not working'
190da2e3ebdSchintypeset -b -Z20 z=$b1
191da2e3ebdSchin(( $(printf "%B" z | wc -c) == 20 )) || err_exit 'typeset -b -Z20 not storing 20 bytes'
192da2e3ebdSchin{
193da2e3ebdSchin	typeset -b v1 v2
194da2e3ebdSchin	read -N11 v1
195da2e3ebdSchin	read -N22 v2
196da2e3ebdSchin} << !
197da2e3ebdSchinhello worldhello worldhello world
198da2e3ebdSchin!
199da2e3ebdSchin[[ $v1 == "$b1" ]] || err_exit "v1=$v1 should be $b1"
200da2e3ebdSchin[[ $v2 == "$x" ]] || err_exit "v1=$v2 should be $x"
20134f9b3eeSRoland Mainzif	env '!=1' >/dev/null 2>&1
20234f9b3eeSRoland Mainzthen	[[ $(env '!=1' $SHELL -c 'echo ok' 2>/dev/null) == ok ]] || err_exit 'malformed environment terminates shell'
20334f9b3eeSRoland Mainzfi
204da2e3ebdSchinunset var
205da2e3ebdSchintypeset -b var
206da2e3ebdSchinprintf '12%Z34' | read -r -N 5 var
207da2e3ebdSchin[[ $var == MTIAMzQ= ]] || err_exit 'binary files with zeros not working'
208da2e3ebdSchinunset var
209da2e3ebdSchinif	command typeset -usi var=0xfffff 2> /dev/null
210da2e3ebdSchinthen	(( $var == 0xffff )) || err_exit 'unsigned short integers not working'
211da2e3ebdSchinelse	err_exit 'typeset -usi cannot be used for unsigned short'
212da2e3ebdSchinfi
213da2e3ebdSchin[[ $($SHELL -c 'unset foo;typeset -Z2 foo; print ${foo:-3}' 2> /dev/null) == 3 ]]  || err_exit  '${foo:-3} not 3 when typeset -Z2 field undefined'
214da2e3ebdSchin[[ $($SHELL -c 'unset foo;typeset -Z2 foo; print ${foo:=3}' 2> /dev/null) == 03 ]]  || err_exit  '${foo:=-3} not 3 when typeset -Z2 foo undefined'
215da2e3ebdSchinunset foo bar
216da2e3ebdSchinunset -f fun
217da2e3ebdSchinfunction fun
218da2e3ebdSchin{
219da2e3ebdSchin	export foo=hello
220da2e3ebdSchin	typeset -x  bar=world
221da2e3ebdSchin	[[ $foo == hello ]] || err_exit 'export scoping problem in function'
222da2e3ebdSchin}
223da2e3ebdSchinfun
224da2e3ebdSchin[[ $(export | grep foo) == 'foo=hello' ]] || err_exit 'export not working in functions'
225da2e3ebdSchin[[ $(export | grep bar) ]] && err_exit 'typeset -x not local'
2267c2fbfb3SApril Chin[[ $($SHELL -c 'typeset -r IFS=;print -r $(pwd)' 2> /dev/null) == "$(pwd)" ]] || err_exit 'readonly IFS causes command substitution to fail'
2277c2fbfb3SApril Chinfred[66]=88
2287c2fbfb3SApril Chin[[ $(typeset -pa) == *fred* ]] || err_exit 'typeset -pa not working'
2297c2fbfb3SApril Chinunset x y z
2307c2fbfb3SApril Chintypeset -LZ3 x=abcd y z=00abcd
2317c2fbfb3SApril Chiny=03
2327c2fbfb3SApril Chin[[ $y == "3  " ]] || err_exit '-LZ3 not working for value 03'
2337c2fbfb3SApril Chin[[ $x == "abc" ]] || err_exit '-LZ3 not working for value abcd'
2347c2fbfb3SApril Chin[[ $x == "abc" ]] || err_exit '-LZ3 not working for value 00abcd'
2357c2fbfb3SApril Chinunset x z
2367c2fbfb3SApril Chinset +a
2377c2fbfb3SApril Chin[[ $(typeset -p z) ]] && err_exit "typeset -p for z undefined failed"
2387c2fbfb3SApril Chinunset z
2397c2fbfb3SApril Chinx='typeset -i z=45'
2407c2fbfb3SApril Chineval "$x"
2417c2fbfb3SApril Chin[[ $(typeset -p z) == "$x" ]] || err_exit "typeset -p for '$x' failed"
2427c2fbfb3SApril Chin[[ $(typeset +p z) == "${x%=*}" ]] || err_exit "typeset +p for '$x' failed"
2437c2fbfb3SApril Chinunset z
2447c2fbfb3SApril Chinx='typeset -a z=(a b c)'
2457c2fbfb3SApril Chineval "$x"
2467c2fbfb3SApril Chin[[ $(typeset -p z) == "$x" ]] || err_exit "typeset -p for '$x' failed"
2477c2fbfb3SApril Chin[[ $(typeset +p z) == "${x%=*}" ]] || err_exit "typeset +p for '$x' failed"
2487c2fbfb3SApril Chinunset z
2497c2fbfb3SApril Chinx='typeset -C z=(
2507c2fbfb3SApril Chin	foo=bar
2517c2fbfb3SApril Chin	xxx=bam
2527c2fbfb3SApril Chin)'
2537c2fbfb3SApril Chineval "$x"
2547c2fbfb3SApril Chinx=${x//$'\t'}
2557c2fbfb3SApril Chinx=${x//$'(\n'/'('}
2567c2fbfb3SApril Chinx=${x//$'\n'/';'}
2577c2fbfb3SApril Chin[[ $(typeset -p z) == "$x" ]] || err_exit "typeset -p for '$x' failed"
2587c2fbfb3SApril Chin[[ $(typeset +p z) == "${x%%=*}" ]] || err_exit "typeset +p for '$x' failed"
2597c2fbfb3SApril Chinunset z
2607c2fbfb3SApril Chinx='typeset -A z=([bar]=bam [xyz]=bar)'
2617c2fbfb3SApril Chineval "$x"
2627c2fbfb3SApril Chin[[ $(typeset -p z) == "$x" ]] || err_exit "typeset -p for '$x' failed"
2637c2fbfb3SApril Chin[[ $(typeset +p z) == "${x%%=*}" ]] || err_exit "typeset +p for '$x' failed"
2647c2fbfb3SApril Chinunset z
2657c2fbfb3SApril Chinfoo=abc
2667c2fbfb3SApril Chinx='typeset -n z=foo'
2677c2fbfb3SApril Chineval "$x"
2687c2fbfb3SApril Chin[[ $(typeset -p z) == "$x" ]] || err_exit "typeset -p for '$x' failed"
2697c2fbfb3SApril Chin[[ $(typeset +p z) == "${x%%=*}" ]] || err_exit "typeset +p for '$x' failed"
2707c2fbfb3SApril Chintypeset +n z
2717c2fbfb3SApril Chinunset foo z
2727c2fbfb3SApril Chintypeset -T Pt_t=(
2737c2fbfb3SApril Chin	float x=1 y=2
2747c2fbfb3SApril Chin)
2757c2fbfb3SApril ChinPt_t z
2767c2fbfb3SApril Chinx=${z//$'\t'}
2777c2fbfb3SApril Chinx=${x//$'(\n'/'('}
2787c2fbfb3SApril Chinx=${x//$'\n'/';'}
2797c2fbfb3SApril Chin[[ $(typeset -p z) == "Pt_t z=$x" ]] || err_exit "typeset -p for type failed"
2807c2fbfb3SApril Chin[[ $(typeset +p z) == "Pt_t z" ]] || err_exit "typeset +p for type failed"
2817c2fbfb3SApril Chinunset z
2827c2fbfb3SApril Chinfunction foo
2837c2fbfb3SApril Chin{
2847c2fbfb3SApril Chin	typeset -p bar
2857c2fbfb3SApril Chin}
2867c2fbfb3SApril Chinbar=xxx
2877c2fbfb3SApril Chin[[ $(foo) == bar=xxx ]] || err_exit 'typeset -p not working inside a function'
28834f9b3eeSRoland Mainzunset foo
28934f9b3eeSRoland Mainztypeset -L5 foo
29034f9b3eeSRoland Mainz[[ $(typeset -p foo) == 'typeset -L 5 foo' ]] || err_exit 'typeset -p not working for variables with attributes but without a value'
29134f9b3eeSRoland Mainz{ $SHELL  <<- EOF
29234f9b3eeSRoland Mainz	typeset -L3 foo=aaa
29334f9b3eeSRoland Mainz	typeset -L6 foo=bbbbbb
29434f9b3eeSRoland Mainz	[[ \$foo == bbbbbb ]]
29534f9b3eeSRoland MainzEOF
29634f9b3eeSRoland Mainz}  || err_exit 'typeset -L should not preserve old attributes'
29734f9b3eeSRoland Mainz{ $SHELL <<- EOF
29834f9b3eeSRoland Mainz	typeset -R3 foo=aaa
29934f9b3eeSRoland Mainz	typeset -R6 foo=bbbbbb
30034f9b3eeSRoland Mainz	[[ \$foo == bbbbbb ]]
30134f9b3eeSRoland MainzEOF
30234f9b3eeSRoland Mainz} 2> /dev/null || err_exit 'typeset -R should not preserve old attributes'
30334f9b3eeSRoland Mainz
30434f9b3eeSRoland Mainzexpected='YWJjZGVmZ2hpag=='
30534f9b3eeSRoland Mainzunset foo
30634f9b3eeSRoland Mainztypeset -b -Z10 foo
30734f9b3eeSRoland Mainzread foo <<< 'abcdefghijklmnop'
30834f9b3eeSRoland Mainz[[ $foo == "$expected" ]] || err_exit 'read foo, where foo is "typeset -b -Z10" not working'
30934f9b3eeSRoland Mainzunset foo
31034f9b3eeSRoland Mainztypeset -b -Z10 foo
31134f9b3eeSRoland Mainzread -N10 foo <<< 'abcdefghijklmnop'
31234f9b3eeSRoland Mainz[[ $foo == "$expected" ]] || err_exit 'read -N10 foo, where foo is "typeset -b -Z10" not working'
31334f9b3eeSRoland Mainzunset foo
31434f9b3eeSRoland Mainztypeset  -b -A foo
31534f9b3eeSRoland Mainzread -N10 foo[4] <<< 'abcdefghijklmnop'
31634f9b3eeSRoland Mainz[[ ${foo[4]} == "$expected" ]] || err_exit 'read -N10 foo, where foo is "typeset  -b -A" foo not working'
31734f9b3eeSRoland Mainzunset foo
31834f9b3eeSRoland Mainztypeset  -b -a foo
31934f9b3eeSRoland Mainzread -N10 foo[4] <<< 'abcdefghijklmnop'
32034f9b3eeSRoland Mainz[[ ${foo[4]} == "$expected" ]] || err_exit 'read -N10 foo, where foo is "typeset  -b -a" foo not working'
32134f9b3eeSRoland Mainz[[ $(printf %B foo[4]) == abcdefghij ]] || err_exit 'printf %B for binary associative array element not working'
32234f9b3eeSRoland Mainz[[ $(printf %B foo[4]) == abcdefghij ]] || err_exit 'printf %B for binary indexed array element not working'
32334f9b3eeSRoland Mainzunset foo
32434f9b3eeSRoland Mainz
32534f9b3eeSRoland Mainz$SHELL 2> /dev/null -c 'export foo=(bar=3)' && err_exit 'compound variables cannot be exported'
32634f9b3eeSRoland Mainz
327*3e14f97fSRoger A. Faulkner$SHELL -c 'builtin date' >/dev/null 2>&1 &&
328*3e14f97fSRoger A. Faulkner{
329*3e14f97fSRoger A. Faulkner
330*3e14f97fSRoger A. Faulkner# check env var changes against a builtin that uses the env var
331*3e14f97fSRoger A. Faulkner
332*3e14f97fSRoger A. FaulknerSEC=1234252800
333*3e14f97fSRoger A. FaulknerETZ=EST5EDT
334*3e14f97fSRoger A. FaulknerEDT=03
335*3e14f97fSRoger A. FaulknerPTZ=PST8PDT
336*3e14f97fSRoger A. FaulknerPDT=00
337*3e14f97fSRoger A. Faulkner
338*3e14f97fSRoger A. FaulknerCMD="date -f%H \\#$SEC"
339*3e14f97fSRoger A. Faulkner
340*3e14f97fSRoger A. Faulknerexport TZ=$ETZ
341*3e14f97fSRoger A. Faulkner
342*3e14f97fSRoger A. Faulknerset -- \
343*3e14f97fSRoger A. Faulkner	"$EDT $PDT $EDT"	""		"TZ=$PTZ"	"" \
344*3e14f97fSRoger A. Faulkner	"$EDT $PDT $EDT"	""		"TZ=$PTZ"	"TZ=$ETZ" \
345*3e14f97fSRoger A. Faulkner	"$EDT $PDT $EDT"	"TZ=$ETZ"	"TZ=$PTZ"	"TZ=$ETZ" \
346*3e14f97fSRoger A. Faulkner	"$PDT $EDT $PDT"	"TZ=$PTZ"	""		"TZ=$PTZ" \
347*3e14f97fSRoger A. Faulkner	"$PDT $EDT $PDT"	"TZ=$PTZ"	"TZ=$ETZ"	"TZ=$PTZ" \
348*3e14f97fSRoger A. Faulkner	"$EDT $PDT $EDT"	"foo=bar"	"TZ=$PTZ"	"TZ=$ETZ" \
349*3e14f97fSRoger A. Faulkner
350*3e14f97fSRoger A. Faulknerwhile	(( $# >= 4 ))
351*3e14f97fSRoger A. Faulknerdo	exp=$1
352*3e14f97fSRoger A. Faulkner	got=$(print $($SHELL -c "builtin date; $2 $CMD; $3 $CMD; $4 $CMD"))
353*3e14f97fSRoger A. Faulkner	[[ $got == $exp ]] || err_exit "[ '$2'  '$3'  '$4' ] env sequence failed -- expected '$exp', got '$got'"
354*3e14f97fSRoger A. Faulkner	shift 4
355*3e14f97fSRoger A. Faulknerdone
356*3e14f97fSRoger A. Faulkner
357*3e14f97fSRoger A. Faulkner}
358*3e14f97fSRoger A. Faulkner
359*3e14f97fSRoger A. Faulknerunset v
360*3e14f97fSRoger A. Faulknertypeset -H v=/dev/null
361*3e14f97fSRoger A. Faulkner[[ $v == *nul* ]] || err_exit 'typeset -H for /dev/null not working'
362*3e14f97fSRoger A. Faulkner
363da2e3ebdSchinexit	$((Errors))
364