#! /bin/bash
# This script tests: pamfile
# Also requires: pamchannel pamtopnm

echo "Test 1"

pamfile testimg.ppm
pamfile testgrid.pbm
pamchannel -infile=testimg.ppm -tupletype="GRAYSCALE" 0 | pamtopnm | pamfile
pamchannel -tupletype="GRAYSCALE" -infile=testimg.ppm 0 | pamfile

echo "Test 2"

cat testgrid.pbm testgrid.pbm testgrid.pbm | pamfile -count
cat testgrid.pbm testgrid.pbm testgrid.pbm | pamfile -allimages

echo "Test 3"

pamfile -size testimg.ppm
pamfile -machine testimg.ppm
cat testgrid.pbm testimg.ppm testgrid.pbm | pamfile -machine

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

pamfile -size -machine  testimg.ppm > ${test_out} || \
  echo -n "Expected failure 1"; test -s ${test_out}; echo " "$?
pamfile -count -machine testimg.ppm > ${test_out} || \
  echo -n "Expected failure 2"; test -s ${test_out}; echo " "$?
head -n1 testimg.ppm | pamfile > ${test_out} || \
  echo -n "Expected failure 3"; test -s ${test_out}; echo " "$?

rm ${test_out}