#! /bin/bash
# This script tests: pgmtoppm ppmtopgm ppmtoppm pgmtopbm
# Also requires: pbmmake pgmcolormask pnminvert

echo "Test 1.  Should print 2425386270 41 five times."

cat testgrid.pbm | cksum
pgmtoppm black-white testgrid.pbm | ppmtopgm | \
  pgmtopbm -th -val=0.5 | cksum
pgmtoppm white-black testgrid.pbm | ppmtopgm | \
  pgmtopbm -th -val=0.5 | pnminvert | cksum
pgmtoppm white-black testgrid.pbm | ppmcolormask white | cksum
ppmtoppm < testgrid.pbm | ppmtopgm | pgmtopbm -th -val=0.5 | cksum

echo "Test 2."

pbmmake -w 7 3  -plain
echo

pbmmake -w 7 3 | pgmtoppm black-white | ppmtopgm | \
  pgmtopbm -th -val=0.5 -plain
echo
pbmmake -w 7 3 | ppmtoppm | ppmtopgm | \
  pgmtopbm -th -val=0.5 -plain
echo

pbmmake -b 17 2 -plain
echo

pbmmake -b 17 2 | pgmtoppm black-white | ppmtopgm | \
  pgmtopbm -th -val=0.5 -plain
echo
pbmmake -b 17 2 | ppmtoppm | ppmtopgm | \
  pgmtopbm -th -val=0.5 -plain