sh/tests/builtins/trap2.0

   1 # $FreeBSD$
   2 # This is really a test for outqstr(), which is readily accessible via trap.
   3
   4 runtest()
   5 {
   6         teststring=$1
   7         trap -- "$teststring" USR1
   8         traps=$(trap)
   9         if [ "$teststring" != "-" ] && [ -z "$traps" ]; then
  10                 # One possible reading of POSIX requires the above to return an
  11                 # empty string because backquote commands are executed in a
  12                 # subshell and subshells shall reset traps. However, an example
  13                 # in the normative description of the trap builtin shows the
  14                 # same usage as here, it is useful and our /bin/sh allows it.
  15                 echo '$(trap) is broken'
  16                 exit 1
  17         fi
  18         trap - USR1
  19         eval "$traps"
  20         traps2=$(trap)
  21         if [ "$traps" != "$traps2" ]; then
  22                 echo "Mismatch for '$teststring'"
  23                 exit 1
  24         fi
  25 }
  26
  27 runtest 'echo'
  28 runtest 'echo hi'
  29 runtest "'echo' 'hi'"
  30 runtest '"echo" $PATH'
  31 runtest '\echo "$PATH"'
  32 runtest ' 0'
  33 runtest '0 '
  34 runtest ' 1'
  35 runtest '1 '
  36 i=1
  37 while [ $i -le 127 ]; do
  38         c=$(printf \\"$(printf %o $i)")
  39         if [ $i -lt 48 ] || [ $i -gt 57 ]; then
  40                 runtest "$c"
  41         fi
  42         runtest " $c$c"
  43         runtest "a$c"
  44         i=$((i+1))
  45 done
  46 IFS=,
  47 runtest ' '
  48 runtest ','
  49 unset IFS
  50 runtest ' '
  51
  52 exit 0