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#! /bin/sh
# This script tests: pgmtoppm ppmtopgm ppmtoppm pgmtopbm
# Also requires: pbmmake ppmcolormask pnminvert
echo "Test 1. Should print 281226646 481 five times."
cat maze.pbm | cksum
pgmtoppm black-white maze.pbm | ppmtopgm | \
pgmtopbm -th -val=0.5 | cksum
pgmtoppm white-black maze.pbm | ppmtopgm | \
pgmtopbm -th -val=0.5 | pnminvert | cksum
pgmtoppm white-black maze.pbm | ppmcolormask white | cksum
ppmtoppm < maze.pbm | ppmtopgm | pgmtopbm -th -val=0.5 | cksum
echo "Test 2. Should print three all-white, then three all-black PBM images"
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
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