#! /bin/bash
# This script tests: pnmcrop pnmmargin pnmpad
# Also requires:

pnmmargin -white 10 testimg.ppm | \
  pnmcrop | cksum

pnmpad -white -left 10 -top 10 testimg.ppm | \
  pnmpad -white -right 10 -bottom 10 | \
  pnmcrop -right -bottom | pnmcrop -left -top | cksum

pnmmargin -white 10 testgrid.pbm | \
  pnmcrop | cksum

pnmpad -white -left 10 -top 10 testgrid.pbm | \
  pnmpad -white -right 10 -bottom 10 | \
  pnmcrop -left -right | pnmcrop -top -bottom | cksum