#! /bin/bash
# This script tests: pamsumm
# Also requires:

echo "Test 1"

for type in -sum -min -max -mean
  do
  pamsumm -brief $type testgrid.pbm
  done

echo "Test 2"

for type in -sum -min -max -mean
  do
  pamsumm -brief $type testimg.ppm
  done


echo "Test 3"

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

pamsumm -sum -min  testimg.ppm || echo "Expected failure 1"
pamsumm -sum -max  testimg.ppm || echo "Expected failure 2"
pamsumm -mean -max testimg.ppm || echo "Expected failure 3"
pamsumm            testimg.ppm || echo "Expected failure 4"