1	#!/bin/bash
2	#
3	# Usage:
4	# ./sh-usage.test.sh <function name>
5
6	#### sh -c
7	$SH -c 'echo hi'
8	## stdout: hi
9	## status: 0
10
11	#### empty -c input
12	# had a bug here
13	$SH -c ''
14	## stdout-json: ""
15	## status: 0
16
17	#### sh +c is accepted
18	$SH +c 'echo hi'
19	## stdout: hi
20	## status: 0
21	## N-I mksh/yash stdout-json: ""
22	## N-I mksh/yash status: 127
23
24	#### empty stdin
25	# had a bug here
26	echo -n '' | $SH
27	## stdout-json: ""
28	## status: 0
29
30	#### shell obeys --help (regression for OSH)
31	n=$($SH --help | wc -l)
32	if test $n -gt 0; then
33	echo yes
34	fi
35	## STDOUT:
36	yes
37	## END
38	## N-I dash/mksh stdout-json: ""
39
40	#### args are passed
41	$SH -c 'argv.py "$@"' dummy a b
42	## stdout: ['a', 'b']
43
44	#### args that look like flags are passed after script
45	script=$TMP/sh1.sh
46	echo 'argv.py "$@"' > $script
47	chmod +x $script
48	$SH $script --help --help -h
49	## stdout: ['--help', '--help', '-h']
50
51	#### args that look like flags are passed after -c
52	$SH -c 'argv.py "$@"' --help --help -h
53	## stdout: ['--help', '-h']
54
55	#### exit with explicit arg
56	exit 42
57	## status: 42
58
59	#### exit with no args
60	false
61	exit
62	## status: 1
63
64	#### --rcfile in non-interactive shell prints warnings
65	echo 'echo rc' > rc
66
67	$SH --rcfile rc -i </dev/null 2>interactive.txt
68	grep -q 'warning' interactive.txt
69	echo warned=$? >&2
70
71	$SH --rcfile rc </dev/null 2>non-interactive.txt
72	grep -q 'warning' non-interactive.txt
73	echo warned=$? >&2
74
75	head *interactive.txt
76
77	## STDERR:
78	warned=1
79	warned=0
80	## END
81	## N-I bash/dash/mksh STDERR:
82	warned=1
83	warned=1
84	## END