sh/tests/expansion/cmdsubst6.0

   1 # $FreeBSD: head/bin/sh/tests/expansion/cmdsubst6.0 216763 2010-12-28 14:58:08Z jilles $
   2 # This tests if the cmdsubst optimization is still used if possible.
   3
   4 failures=''
   5 ok=''
   6
   7 testcase() {
   8         code="$1"
   9
  10         unset v
  11         eval "pid=\$(dummy=$code echo \$(\$SH -c echo\ \\\$PPID))"
  12
  13         if [ "$pid" = "$$" ]; then
  14                 ok=x$ok
  15         else
  16                 failures=x$failures
  17                 echo "Failure for $code"
  18         fi
  19 }
  20
  21 unset v
  22 w=1
  23 testcase '$w'
  24 testcase '1${w+1}'
  25 testcase '1${w-1}'
  26 testcase '1${v+1}'
  27 testcase '1${v-1}'
  28 testcase '1${w:+1}'
  29 testcase '1${w:-1}'
  30 testcase '1${v:+1}'
  31 testcase '1${v:-1}'
  32 testcase '${w?}'
  33 testcase '${w:?}'
  34 testcase '${w#x}'
  35 testcase '${w##x}'
  36 testcase '${w%x}'
  37 testcase '${w%%x}'
  38
  39 testcase '$((w))'
  40 testcase '$(((w+4)*2/3))'
  41 testcase '$((w==1))'
  42 testcase '$((w>=0 && w<=5 && w!=2))'
  43 testcase '$((${#w}))'
  44 testcase '$((${#IFS}))'
  45 testcase '$((${#w}>=1))'
  46 testcase '$(($$))'
  47 testcase '$(($#))'
  48 testcase '$(($?))'
  49
  50 testcase '$(: $((w=4)))'
  51 testcase '$(: ${v=2})'
  52
  53 test "x$failures" = x