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#! /bin/sh
# This script tests: pnmcat
# Also requires: pbmmake pgmramp ppmtoppm

tmpdir=${tmpdir:-/tmp}
check2x2_pbm=${tmpdir}/check2x2.pbm
maze2lr_pbm=${tmpdir}/maze2lr.pbm
maze2tb_pbm=${tmpdir}/maze2tb.pbm
diag_pgm=${tmpdir}/diag.pgm
diag_ppm=${tmpdir}/diag.ppm
diag2lr_ppm=${tmpdir}/diag2lr.ppm
diag2tb_ppm=${tmpdir}/diag2tb.ppm

echo "Test 1.  Should print a simple PBM image four times"
pbmmake -g 2 2 | tee ${check2x2_pbm} | pnmcat -lr -plain
pnmcat -tb -plain ${check2x2_pbm}
pnmcat -lr -black -plain ${check2x2_pbm}
cat ${check2x2_pbm} | pnmcat -tb -white -plain

rm ${check2x2_pbm}

echo "Test 2.  Should print 2197356643 895 twice"
pnmcat -lr -white maze.pbm maze.pbm | tee ${maze2lr_pbm} | cksum
cat maze.pbm | pnmcat -lr -black maze.pbm - | cksum

echo "Test 3.  Should print 3313353797 954"
pnmcat -tb maze.pbm maze.pbm | tee ${maze2tb_pbm} | cksum

echo "Test 4.  Should print 1731660895 1308 three times"
pnmcat -lr maze.pbm maze.pbm maze.pbm | cksum
pnmcat -lr ${maze2lr_pbm} maze.pbm | cksum
cat ${maze2lr_pbm} | pnmcat -lr - maze.pbm | cksum

echo "Test 5.  Should print 2985957591 1426 three times"
pnmcat -tb maze.pbm maze.pbm maze.pbm | cksum
pnmcat -tb maze.pbm ${maze2tb_pbm} | cksum
cat maze.pbm | pnmcat -tb - ${maze2tb_pbm} | cksum

rm ${maze2lr_pbm} ${maze2tb_pbm}

echo "Test 6.  Should print a simple PGM image three times"
pgmramp -diag 4 4 -maxval=3 | tee ${diag_pgm} | pnmcat -lr -plain
pnmcat -tb -plain ${diag_pgm}
cat ${diag_pgm} | pnmcat -tb -plain

rm ${diag_pgm}

pgmramp -diag 8 8 -maxval 7 | ppmtoppm > ${diag_ppm} 

echo "Test 7.  Should print 2097565808 394 twice"
pnmcat -lr -black ${diag_ppm} ${diag_ppm} | tee ${diag2lr_ppm} | cksum
cat ${diag_ppm} | pnmcat -lr -white ${diag_ppm} - | cksum

echo "Test 8.  Should print 3086569577 394"
pnmcat -tb ${diag_ppm} ${diag_ppm} | tee ${diag2tb_ppm} | cksum

echo "Test 9.  Should print 4288335051 586 three times"
pnmcat -lr ${diag_ppm} ${diag_ppm} ${diag_ppm} | cksum
pnmcat -lr ${diag_ppm}  ${diag2lr_ppm} | cksum 
cat ${diag2lr_ppm} | pnmcat -lr - ${diag_ppm} | cksum

echo "Test 10.  Should print 642720605 586 three times"
pnmcat -tb ${diag_ppm} ${diag_ppm} ${diag_ppm} | cksum
pnmcat -tb ${diag2tb_ppm} ${diag_ppm} | cksum
cat ${diag_ppm} | pnmcat -tb ${diag2tb_ppm} - | cksum

rm ${diag2lr_ppm} ${diag2tb_ppm}

echo "Test 11.  Should print 3622741282 1019 twice"
pnmcat -tb -white testgrid.pbm ${diag_ppm} | cksum
pnmcat -tb -jcenter -white testgrid.pbm ${diag_ppm} | cksum
echo "Test 12.  Should print 1401081637 1019"
pnmcat -tb -jleft -white testgrid.pbm ${diag_ppm}  | cksum
echo "Test 13.  Should print 2756501917 1019"
pnmcat -tb -jright -white testgrid.pbm ${diag_ppm} | cksum

echo "Test 14. Should print 587933655 107742 twice"
pnmcat -lr -black testgrid.pbm testimg.ppm | cksum
pnmcat -lr -jcenter -black testgrid.pbm testimg.ppm | cksum
echo "Test 15.  Should print 3948141157 107742"
pnmcat -lr -jtop -black testgrid.pbm testimg.ppm | cksum
echo "Test 16.  Should print 3910239002 107742"
pnmcat -lr -jbottom -black testgrid.pbm testimg.ppm | cksum

rm ${diag_ppm}

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

# direction not specified
pnmcat testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 1"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

# both directions specified
pnmcat -topbottom -leftright testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 2"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

# both pad colors specified
pnmcat -topbottom -white -black testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 3"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

# justification parameters overspecified
pnmcat -lr -jtop -jbottom testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 4"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

pnmcat -lr -jtop -jcenter testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 5"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

pnmcat -lr -jcenter -jbottom testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 6"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

pnmcat -tb -jleft -jright testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 7"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

pnmcat -tb -jleft -jcenter testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 8"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

pnmcat -tb -jcenter -jright testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 9"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

# justification parameter in the wrong direction
pnmcat -lr -jleft    testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 10"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

pnmcat -lr -jright   testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 11"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

pnmcat -tb -jtop     testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 12"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

pnmcat -tb -jbottom  testgrid.pbm testimg.ppm > ${test_out} || \
  echo -n "Expected failure 13"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

# more than one input image from standard input
cat testgrid.pbm | pnmcat -lr - - testimg.ppm > ${test_out} || \
  echo -n "Expected failure 14"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}