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#! /bin/bash
# This script tests: pamundice
# Also requires: pgmmake pnmtile pnmcat pnmpad

tmpdir=${tmpdir:-/tmp}
fname_stem=${tmpdir}/part

# Test 1.
echo "Test 1."

for ((x=0; x<3; ++x))
  do for ((y=0; y<5; ++y))
    do
    pgmmake "."$(( x* 25 + y )) 11 17 > ${fname_stem}_${y}_${x}.pgm
    done
  done

pamundice -across=3 -down=5 ${fname_stem}"_%1d_%1a".pgm | cksum

ls ${fname_stem}_?_?.pgm | \
    pamundice -across=3 -down=5 -listfile=- | cksum


# Test 2.
echo "Test 2."

tempfile=${tmpdir}/temp

for ((y=0; y<5; ++y))
  do
  pamundice -across=3 ${fname_stem}"_"$y"_%1a".pgm > ${tempfile}_"$y"
  done

pnmcat -tb ${tempfile}_[01234] | cksum
rm ${tempfile}_[01234]

# Note: the following 2 are valid.  There should not be warning messages.

for ((x=0; x<3; ++x))
  do
  pamundice -down=5 ${fname_stem}"_%1d_"$x.pgm > ${tempfile}"_"$x
  done

pnmcat -lr ${tempfile}_[012] | cksum
rm ${tempfile}_[012]

rm ${fname_stem}_?_?.pgm

# Test 3.
echo "Test 3."

for ((x=0; x<2; ++x))
  do for ((y=0; y<5; ++y))
    do
    pgmmake "."$(( x* 25 + y )) 12 17 > ${fname_stem}_${y}_${x}.pgm
    done
  done

for ((x=2; x<3; ++x))
  do for ((y=0; y<5; ++y))
    do
    pgmmake "."$(( x* 25 + y )) 11 17 > ${fname_stem}_${y}_${x}.pgm
    done
  done

pamundice -across=3 -down=5 \
  -hoverlap=1 ${fname_stem}"_%1d_%1a".pgm | cksum

rm ${fname_stem}_?_?.pgm

for ((x=0; x<3; ++x))
  do for ((y=0; y<4; ++y))
    do
    pgmmake "."$(( x* 25 + y )) 11 18 > ${fname_stem}_${y}_${x}.pgm
    done
  done

for ((x=0; x<3; ++x))
  do for ((y=4; y<5; ++y))
    do
    pgmmake "."$(( x* 25 + y )) 11 17 > ${fname_stem}_${y}_${x}.pgm
    done
  done

pamundice -across=3 -down=5 \
  -voverlap=1 ${fname_stem}"_%1d_%1a".pgm | cksum

rm ${fname_stem}_?_?.pgm


# Test 4.
echo "Test 4."

# Add margins to testgrid.pbm

testimg_pbm=${tmpdir}/testimg.pbm
pnmpad -top=2 -left=3 -black testgrid.pbm > ${testimg_pbm}

for x in `seq 0 1`
  do for y in `seq 0 4`
    do cp ${testimg_pbm} ${fname_stem}_${y}_${x}.pbm; done
  done

for (( i=0 ; i<=9; ++i))
  do
  echo ${testimg_pbm}
  done | pamundice -down=5 -across=2 -listfile=- | cksum

pamundice -down=5 -across=2 ${fname_stem}_"%1d"_"%1a".pbm | cksum

echo "A warning message should appear below the line." 1>&2
echo "-----------------------------------------------------------" 1>&2

pamundice -down=5 -across=2 ${testimg_pbm} | cksum

pnmtile 34 90 ${testimg_pbm} | cksum

rm ${testimg_pbm}

# Test Invalid.
echo "Test Invalid"

test_out=${tmpdir}/test_out

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

# No input file pattern specified
pamundice -down=5 -across=2 > ${test_out} || \
  echo -n "Expected failure 1"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

# -down=0
pamundice -down=0 -across=2 ${fname_stem}_"%1d"_"%1a".pbm > ${test_out} || \
  echo -n "Expected failure 2"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

# -across=0
pamundice -down=5 -across=0 ${fname_stem}_"%1d"_"%1a".pbm > ${test_out} || \
  echo -n "Expected failure 3"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

# -down too large
pamundice -down=6 -across=2 ${fname_stem}_"%1d"_"%1a".pbm > ${test_out} || \
  echo -n "Expected failure 4"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

# -across too large
pamundice -down=5 -across=3 ${fname_stem}_"%1d"_"%1a".pbm > ${test_out} || \
  echo -n "Expected failure 5"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

# precision does not match
pamundice -down=5 -across=2 ${fname_stem}_"%2d"_"%2a".pbm > ${test_out} || \
  echo -n "Expected failure 6"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

# precision set to zero
pamundice -down=5 -across=2 ${fname_stem}_"%0d"_"%0a".pbm > ${test_out} || \
  echo -n "Expected failure 7"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

# no precision
pamundice -down=5 -across=2 ${fname_stem}_"%d"_"%a".pbm > ${test_out} || \
  echo -n "Expected failure 8"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

# -hoverlap too large
pamundice -down=5 -across=2 -hoverlap=18 \
  ${fname_stem}_"%1d"_"%1a".pbm > ${test_out} || \
  echo -n "Expected failure 9"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

# -voverlap too large
pamundice -down=5 -across=2 -voverlap=19 \
  ${fname_stem}_"%1d"_"%1a".pbm > ${test_out} || \
  echo -n "Expected failure 10"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

# corrupt listfile : file names do not exist
seq 10 | sed -e 's/^/::::::/' -e 's/$/::::::/' | \
  pamundice -down=5 -across=2 -listfile=- > ${test_out} || \
  echo -n "Expected failure 11"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

# listfile with insufficient lines (insufficient file entries)
ls ${fname_stem}_*_*.pbm | head -n 9 | \
  pamundice -down=5 -across=2 -listfile=- > ${test_out} || \
  echo -n "Expected failure 12"
  test -s ${test_out}; echo " "$?
  rm -f {test_out}

rm ${fname_stem}*.pbm