1	#!/usr/bin/env bash
2	#
3	# Cases from
4	# http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html
5
6	# My tests
7
8	#### Empty for loop is allowed
9	for x in; do
10	echo hi
11	echo $x
12	done
13	## stdout-json: ""
14
15	#### Empty for loop without in. Do can be on the same line I guess.
16	for x do
17	echo hi
18	echo $x
19	done
20	## stdout-json: ""
21
22	#### Empty case statement
23	case foo in
24	esac
25	## stdout-json: ""
26
27	#### Last case without ;;
28	foo=a
29	case $foo in
30	a) echo A ;;
31	b) echo B
32	esac
33	## stdout: A
34
35	#### Only case without ;;
36	foo=a
37	case $foo in
38	a) echo A
39	esac
40	## stdout: A
41
42	#### Case with optional (
43	foo=a
44	case $foo in
45	(a) echo A ;;
46	(b) echo B
47	esac
48	## stdout: A
49
50	#### Empty action for case is syntax error
51	# POSIX grammar seems to allow this, but bash and dash don't. Need ;;
52	foo=a
53	case $foo in
54	a)
55	b)
56	echo A ;;
57	d)
58	esac
59	## status: 2
60	## OK mksh status: 1
61
62	#### Empty action is allowed for last case
63	foo=b
64	case $foo in
65	a) echo A ;;
66	b)
67	esac
68	## stdout-json: ""
69
70	#### Case with | pattern
71	foo=a
72	case $foo in
73	a|b) echo A ;;
74	c)
75	esac
76	## stdout: A
77
78
79	#### Bare semi-colon not allowed
80	# This is disallowed by the grammar; bash and dash don't accept it.
81	;
82	## status: 2
83	## OK mksh status: 1
84
85
86
87	#
88	# Explicit tests
89	#
90
91
92
93	#### Command substitution in default
94	echo ${x:-$(ls -d /bin)}
95	## stdout: /bin
96
97
98	#### Arithmetic expansion
99	x=3
100	while [ $x -gt 0 ]
101	do
102	echo $x
103	x=$(($x-1))
104	done
105	## stdout-json: "3\n2\n1\n"
106
107	#### Newlines in compound lists
108	x=3
109	while
110	# a couple of <newline>s
111
112	# a list
113	date && ls -d /bin || echo failed; cat tests/hello.txt
114	# a couple of <newline>s
115
116	# another list
117	wc tests/hello.txt > _tmp/posix-compound.txt & true
118
119	do
120	# 2 lists
121	ls -d /bin
122	cat tests/hello.txt
123	x=$(($x-1))
124	[ $x -eq 0 ] && break
125	done
126	# Not testing anything but the status since output is complicated
127	## status: 0
128
129	#### Multiple here docs on one line
130	cat <<EOF1; cat <<EOF2
131	one
132	EOF1
133	two
134	EOF2
135	## stdout-json: "one\ntwo\n"
136
137	#### cat here doc; echo; cat here doc
138	cat <<EOF1; echo two; cat <<EOF2
139	one
140	EOF1
141	three
142	EOF2
143	## STDOUT:
144	one
145	two
146	three
147	## END