1	#!/usr/bin/env bash
2
3	### zero args: [ ]
4	[ ] || echo false
5	# stdout: false
6
7	### one arg: [ x ] where x is one of '=' '!' '(' ']'
8	[ = ]
9	echo status=$?
10	[ ] ]
11	echo status=$?
12	[ '!' ]
13	echo status=$?
14	[ '(' ]
15	echo status=$?
16	# stdout-json: "status=0\nstatus=0\nstatus=0\nstatus=0\n"
17
18	### one arg: empty string is false. Equivalent to -n.
19	test 'a' && echo true
20	test '' || echo false
21	# stdout-json: "true\nfalse\n"
22
23	### -a as unary operator (alias of -e)
24	# NOT IMPLEMENTED FOR OSH, but could be later. See comment in core/id_kind.py.
25	[ -a / ]
26	echo status=$?
27	[ -a /nonexistent ]
28	echo status=$?
29	# stdout-json: "status=0\nstatus=1\n"
30	# N-I dash stdout-json: "status=2\nstatus=2\n"
31
32	### two args: -z with = ! ( ]
33	[ -z = ]
34	echo status=$?
35	[ -z ] ]
36	echo status=$?
37	[ -z '!' ]
38	echo status=$?
39	[ -z '(' ]
40	echo status=$?
41	# stdout-json: "status=1\nstatus=1\nstatus=1\nstatus=1\n"
42
43	### three args
44	[ foo = '' ]
45	echo status=$?
46	[ foo -a '' ]
47	echo status=$?
48	[ foo -o '' ]
49	echo status=$?
50	[ ! -z foo ]
51	echo status=$?
52	[ \( foo \) ]
53	echo status=$?
54	# stdout-json: "status=1\nstatus=1\nstatus=0\nstatus=0\nstatus=0\n"
55
56	### four args
57	[ ! foo = foo ]
58	echo status=$?
59	[ \( -z foo \) ]
60	echo status=$?
61	# stdout-json: "status=1\nstatus=1\n"
62
63	### test with extra args is syntax error
64	test -n x ]
65	echo status=$?
66	test -n x y
67	echo status=$?
68	## STDOUT:
69	status=2
70	status=2
71	## END
72
73	### ] syntax errors
74	[
75	echo status=$?
76	test # not a syntax error
77	echo status=$?
78	[ -n x # missing ]
79	echo status=$?
80	[ -n x ] y # extra arg after ]
81	echo status=$?
82	[ -n x y # extra arg
83	echo status=$?
84	## STDOUT:
85	status=2
86	status=1
87	status=2
88	status=2
89	status=2
90	## END
91
92	### -n
93	test -n 'a' && echo true
94	test -n '' || echo false
95	# stdout-json: "true\nfalse\n"
96
97	### ! -a
98	[ -z '' -a ! -z x ]
99	echo status=$?
100	# stdout: status=0
101
102	### -o
103	[ -z x -o ! -z x ]
104	echo status=$?
105	# stdout: status=0
106
107	### ( )
108	[ -z '' -a '(' ! -z x ')' ]
109	echo status=$?
110	# stdout: status=0
111
112	### ( ) ! -a -o with system version of [
113	command [ --version
114	command [ -z '' -a '(' ! -z x ')' ] && echo true
115	# stdout: true
116
117	### == is alias for =
118	[ a = a ] && echo true
119	[ a == a ] && echo true
120	# stdout-json: "true\ntrue\n"
121	# BUG dash stdout-json: "true\n"
122	# BUG dash status: 2
123
124	### == and = does not do glob
125	[ abc = 'a*' ]
126	echo status=$?
127	[ abc == 'a*' ]
128	echo status=$?
129	# stdout-json: "status=1\nstatus=1\n"
130	# N-I dash stdout-json: "status=1\nstatus=2\n"
131
132	### [ with op variable
133	# OK -- parsed AFTER evaluation of vars
134	op='='
135	[ a $op a ] && echo true
136	[ a $op b ] || echo false
137	# status: 0
138	# stdout-json: "true\nfalse\n"
139
140	### [ with unquoted empty var
141	empty=''
142	[ $empty = '' ] && echo true
143	# status: 2
144
145	### [ compare with literal -f
146	# Hm this is the same
147	var=-f
148	[ $var = -f ] && echo true
149	[ '-f' = $var ] && echo true
150	# stdout-json: "true\ntrue\n"
151
152	### [ '(' foo ] is runtime syntax error
153	[ '(' foo ]
154	echo status=$?
155	# stdout: status=2
156
157	### -z '>' implies two token lookahead
158	[ -z ] && echo true # -z is operand
159	[ -z '>' ] || echo false # -z is operator
160	[ -z '>' -- ] && echo true # -z is operand
161	# stdout-json: "true\nfalse\ntrue\n"
162
163	### operator/operand ambiguity with ]
164	# bash parses this as '-z' AND ']', which is true. It's a syntax error in
165	# dash/mksh.
166	[ -z -a ] ]
167	echo status=$?
168	# stdout: status=0
169	# OK mksh stdout: status=2
170	# OK dash stdout: status=2
171
172	### operator/operand ambiguity with -a
173	# bash parses it as '-z' AND '-a'. It's a syntax error in mksh but somehow a
174	# runtime error in dash.
175	[ -z -a -a ]
176	echo status=$?
177	# stdout: status=0
178	# OK mksh stdout: status=2
179	# OK dash stdout: status=1
180
181	### -d
182	test -d $TMP
183	echo status=$?
184	test -d $TMP/__nonexistent_Z_Z__
185	echo status=$?
186	# stdout-json: "status=0\nstatus=1\n"
187
188	### -x
189	rm -f $TMP/x
190	echo 'echo hi' > $TMP/x
191	test -x $TMP/x || echo 'no'
192	chmod +x $TMP/x
193	test -x $TMP/x && echo 'yes'
194	test -x $TMP/__nonexistent__ || echo 'bad'
195	# stdout-json: "no\nyes\nbad\n"
196
197	### -r
198	echo '1' > $TMP/testr_yes
199	echo '2' > $TMP/testr_no
200	chmod -r $TMP/testr_no # remove read permission
201	test -r $TMP/testr_yes && echo 'yes'
202	test -r $TMP/testr_no || echo 'no'
203	# stdout-json: "yes\nno\n"
204
205	### -w
206	rm -f $TMP/testw_*
207	echo '1' > $TMP/testw_yes
208	echo '2' > $TMP/testw_no
209	chmod -w $TMP/testw_no # remove write permission
210	test -w $TMP/testw_yes && echo 'yes'
211	test -w $TMP/testw_no || echo 'no'
212	# stdout-json: "yes\nno\n"
213
214	### -h and -L test for symlink
215	touch $TMP/zz
216	ln -s -f $TMP/zz $TMP/symlink
217	ln -s -f $TMP/__nonexistent_ZZ__ $TMP/dangling
218	test -L $TMP/zz || echo no
219	test -h $TMP/zz || echo no
220	test -f $TMP/symlink && echo is-file
221	test -L $TMP/symlink && echo symlink
222	test -h $TMP/symlink && echo symlink
223	test -L $TMP/dangling && echo dangling
224	test -h $TMP/dangling && echo dangling
225	test -f $TMP/dangling || echo 'dangling is not file'
226	## STDOUT:
227	no
228	no
229	is-file
230	symlink
231	symlink
232	dangling
233	dangling
234	dangling is not file
235	## END
236
237	### -t 1 for stdout
238	# There isn't way to get a terminal in the test environment?
239	[ -t 1 ]
240	echo status=$?
241	## stdout: status=1
242
243	### [ -t invalid ]
244	[ -t invalid ]
245	echo status=$?
246	## stdout: status=2
247	## BUG bash stdout: status=1
248
249	### -ot and -nt
250	touch -d 2017/12/31 $TMP/x
251	touch -d 2018/01/01 > $TMP/y
252	test $TMP/x -ot $TMP/y && echo 'older'
253	test $TMP/x -nt $TMP/y || echo 'not newer'
254	test $TMP/x -ot $TMP/x || echo 'not older than itself'
255	test $TMP/x -nt $TMP/x || echo 'not newer than itself'
256	## STDOUT:
257	older
258	not newer
259	not older than itself
260	not newer than itself
261	## END