#! /bin/sh
# This script tests: pnmquantall
# Also requires: ppmtorgb3 pgmhist pamcat

tmpdir=${tmpdir:-/tmp}
rose_ppm=${tmpdir}/rose.ppm

cp testimg.ppm ${rose_ppm} &&
ppmtorgb3 ${rose_ppm}

rose_red=${tmpdir}/rose.red
rose_grn=${tmpdir}/rose.grn
rose_blu=${tmpdir}/rose.blu

cp ${rose_red} ${rose_red}.1
cp ${rose_grn} ${rose_grn}.1
cp ${rose_blu} ${rose_blu}.1

echo "Test 1."

pnmquantall 20 ${rose_red}.1 ${rose_grn}.1 ${rose_blu}.1

for i in ${rose_red}.1 ${rose_grn}.1 ${rose_blu}.1
do
cat $i | cksum
done

pamcat ${rose_red}.1 ${rose_grn}.1 ${rose_blu}.1 -tb | \
    pgmhist -m |\
    awk '$2>0 {s++};
         END { printf("color count %u: %s\n", s,
                 (s==20) ? "success" : "failure") }'

rm ${rose_red}.1 ${rose_grn}.1 ${rose_blu}.1

echo "Test 2."

pnmquantall -ext .2 1 ${rose_red} ${rose_grn} ${rose_blu}

for i in ${rose_red}.2 ${rose_grn}.2 ${rose_blu}.2
do
cat $i | cksum
done

pamcat ${rose_red}.2 ${rose_grn}.2 ${rose_blu}.2 -tb | \
    pgmhist -m |\
    awk '$2>0 {s++};
         END { printf("color count %u: %s\n", s,
                 (s==1) ? "success" : "failure") }'

rm ${rose_red}.2 ${rose_grn}.2 ${rose_blu}.2

echo "Test Invalid"

echo 1>&2
echo "Invalid command-line argument combinations." 1>&2
echo "Error messages should appear below the line." 1>&2
echo "-----------------------------------------------------------" 1>&2

pnmquantall -ext xx 0 ${rose_red} ${rose_grn} ${rose_blu} || \
   echo "Expected failure 1"
rm ${rose_red}xx ${rose_grn}xx ${rose_blu}xx || \
   echo "Expected failure 1.rm"
pnmquantall -ext yy ${rose_red} ${rose_grn} ${rose_blu} || \
   echo "Expected failure 2"
rm ${rose_red}yy ${rose_grn}yy ${rose_blu}yy || \
   echo "Expected failure 2.rm"
pnmquantall -ext zz 2 || \
   echo "Expected failure 3"

rm ${rose_red} ${rose_grn} ${rose_blu} ${rose_ppm}