test/ppmhist.test


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#! /bin/sh
# This script tests: ppmhist
# Also requires: pgmramp pamtopnm pbmmake pamseq ppmpat

echo "Test 1"

pgmramp -maxval=8 -lr 8 2 | ppmhist -sort=rgb -noheader
ppmhist -map -sort=rgb -noheader testimg.ppm | pamtopnm | cksum

# Test summary header

echo "Test 2"

pbmmake -b 2 1 | ppmhist   | head -n1
pbmmake -w 2 1 | ppmhist   | head -n1
pbmmake -g 2 1 | ppmhist   | head -n1
pgmramp -lr 16 1 | ppmhist | head -n1
pgmramp -lr -maxval=7 16 1 | ppmhist | head -n1
pamseq  3 1 | ppmhist | head -n1
pamseq  3 2 | ppmhist | head -n1
ppmpat -madras --color=rgb:32/0d/b7,rgb:31/58/a3,rgb:e9/5e/d4 25 25 | \
  ppmhist | head -n1
ppmpat -madras --color=rgb:00/00/00,rgb:31/58/a3,rgb:e9/5e/d4 25 25 | \
  ppmhist | head -n1
ppmpat -madras --color=rgb:00/00/00,rgb:31/58/a3,rgb:ff/ff/ff 25 25 | \
  ppmhist | head -n1

echo "Test Invalid"

tmpdir=${tmpdir:-/tmp}
test_out=${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

ppmhist -hexcolor -float testimg.ppm > ${test_out} || \
  printf "Expected failure 1 "
  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
  rm -f ${test_out}

ppmhist -hexcolor -map   testimg.ppm > ${test_out} || \
  printf "Expected failure 2 "
  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
  rm -f ${test_out}

ppmhist -float    -map   testimg.ppm > ${test_out} || \
  printf "Expected failure 3 "
  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
  rm -f ${test_out}