xref: /freebsd/bin/sh/tests/expansion/cmdsubst6.0 (revision d0b2dbfa) 
1# This tests if the cmdsubst optimization is still used if possible.
2
3failures=''
4ok=''
5
6testcase() {
7	code="$1"
8
9	unset v
10	eval "pid=\$(dummy=$code echo \$(\$SH -c echo\ \\\$PPID))"
11
12	if [ "$pid" = "$$" ]; then
13		ok=x$ok
14	else
15		failures=x$failures
16		echo "Failure for $code"
17	fi
18}
19
20unset v
21w=1
22testcase '$w'
23testcase '1${w+1}'
24testcase '1${w-1}'
25testcase '1${v+1}'
26testcase '1${v-1}'
27testcase '1${w:+1}'
28testcase '1${w:-1}'
29testcase '1${v:+1}'
30testcase '1${v:-1}'
31testcase '${w?}'
32testcase '${w:?}'
33testcase '${w#x}'
34testcase '${w##x}'
35testcase '${w%x}'
36testcase '${w%%x}'
37
38testcase '$((w))'
39testcase '$(((w+4)*2/3))'
40testcase '$((w==1))'
41testcase '$((w>=0 && w<=5 && w!=2))'
42testcase '$((${#w}))'
43testcase '$((${#IFS}))'
44testcase '$((${#w}>=1))'
45testcase '$(($$))'
46testcase '$(($#))'
47testcase '$(($?))'
48
49testcase '$(: $((w=4)))'
50testcase '$(: ${v=2})'
51
52test "x$failures" = x
53