#! /bin/sh
# This script tests: pnmpad
# Also requires: pamflip pbmmake pbmnoise pgmnoise ppmpat

# If any of the padding functions is altered, make sure to run this
# test in a more thorough form.  Try more input images and more
# values of d0, d1, d2, d3.

tmpdir=${tmpdir:-/tmp}
test_pnm=${tmpdir}/test.pnm
padded_pnm=${tmpdir}/padded.pnm

echo "Test 1.  Should print match sixteen (8x2) times"

d0=1; d1=11; d2=10; d3=5;

for generator in "pbmnoise -randomseed=100 11 16" \
                 "pgmnoise -randomseed=100 31 41"
    do
    ${generator} > ${test_pnm}
    echo "("${generator}")"
    for method in "-black" "-white" "-color rgb:20/30/e0" "-extend-edge"
    do
      pnmpad ${method} -t ${d0} -r ${d1} -b ${d2} -l ${d3} ${test_pnm} > ${padded_pnm}

      pamflip -lr ${test_pnm} |\
        pnmpad ${method} -t ${d0} -l ${d1} -b ${d2} -r ${d3} | pamflip -lr |\
        cmp -s ${padded_pnm} - && echo "match" || echo "no match"

      pamflip -r90 ${test_pnm} |\
         pnmpad ${method} -l ${d0} -t ${d1} -r ${d2} -b ${d3} | pamflip -r270 |\
         cmp -s ${padded_pnm} - && echo "match" || echo "no match"

    done
done

echo "Test 2.  Should print match forty (10x4) times"

# Test images with all corners with the same colors

for generator in "pbmmake -b 1 1" \
                 "pbmmake -w 1 1" \
                 "pbmmake -g 17 11" \
                 "ppmpat -argyle1 -randomseed=100 7 8"
    do
    ${generator} > ${test_pnm}
    echo "("${generator}")"
    for method in "-black" "-white" "-color rgb:20/30/e0 -promote none" \
                  "-detect-background" "-extend-edge"
    do
      pnmpad ${method} -t ${d0} -r ${d1} -b ${d2} -l ${d3} ${test_pnm} > ${padded_pnm}

      pamflip -lr ${test_pnm} |\
        pnmpad ${method} -t ${d0} -l ${d1} -b ${d2} -r ${d3} | pamflip -lr |\
        cmp -s ${padded_pnm} - && echo "match" || echo "no match"

      pamflip -r90 ${test_pnm} |\
         pnmpad ${method} -l ${d0} -t ${d1} -r ${d2} -b ${d3} | pamflip -r270 |\
         cmp -s ${padded_pnm} - && echo "match" || echo "no match"

    done
done