#! /bin/bash
# This script tests: pamdepth
# Also requires: pbmtopgm pamtopam pamfile

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

# Test 1
echo "Test 1"
pamdepth 1 testgrid.pbm | tee ${test_out} | cksum
  cat ${test_out} | pamfile -machine
pbmtopgm 1 1 testgrid.pbm | pamdepth 1 | tee ${test_out} | cksum
  cat ${test_out} | pamfile -machine
pamdepth 1 testgrid.pbm | pamtopam | tee ${test_out} | cksum
  cat ${test_out} | pamfile -machine
pbmtopgm 1 1 testgrid.pbm | pamtopam | pamdepth 1 | tee ${test_out} | cksum
  cat ${test_out} | pamfile -machine

# Test 2
echo "Test 2"
pamdepth 255 testimg.ppm | cmp -s - testimg.ppm
  echo ${PIPESTATUS[@]} ":" $?

# Test Invalid
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

pamdepth 0 testgrid.pbm > ${test_out} || \
  printf "Expected failure 1"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}

pamdepth 65536 testimg.ppm > ${test_out} || \
  printf "Expected failure 2"
  test -s ${test_out}; echo " "$?
  rm -f ${test_out}
