[Puppet Users] Exec type's 'onlyif' and 'unless' commands run even with --noop

Hello,

I have noticed that commands specified in 'onlyif' and 'unless'
parameters of the Exec type are always executed, even if --noop option
is given on command line or the resource's noop parameter is set to true.

For example, the following block always creates /tmp/onlyif and /tmp/unless.

exec{"touch /tmp/exec":
          noop => true,
          onlyif => "touch /tmp/onlyif",
          unless => "touch /tmp/unless; false",
}

Is this expected behavior?

Is it possible to determine from within puppet manifest whether --noop
option has been given on command line? For example, to change the block
above to something like:

if ! $noop {
  exec{"touch /tmp/exec":
                  onlyif => "touch /tmp/onlyif",
           unless => "touch /tmp/unless; false",
  }
}

Thanks,

Vlad