#! /bin/bash

# This script tests: pngtopam pamtopng

# Also requires:

# Failure message

## If this test fails and pnm-roundtrip.test succeeds, it indicates

## some problem with pamtopng.

##

## If both tests fail, the likely cause is a problem with pngtopam.

## It is also possible that there is some problem in libpng.

# Test 1.  Should print 1926073387 101484 twice

for flags in "" -gamma=.45

  do

  pamtopng testimg.ppm $flags | pngtopam | cksum

  done

# Test 2.  Should print 2425386270 41 twice

for flags in "" -gamma=.45

  do

  pamtopng testgrid.pbm $flags | pngtopam | cksum

  done