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#! /bin/sh
# This script tests: ppmbrighten
# Also requires: pnmnorm pambrighten pamsumm
# Failure message
## Ppmbrighten is sensitive to subtle differences in floating point math.
## If this test fails, please run the program and visually examine
## the output.
echo "Test 1: Should print 1969633344 101484"
ppmbrighten -v 100 testimg.ppm | cksum
echo "Test 2: Should print 295150171 101484"
ppmbrighten -s 100 -v -50 testimg.ppm | cksum
echo "Test 3: Should print 1"
ppmbrighten -v 100 -normalize testimg.ppm | pamsumm --mean | \
awk '{print ($NF > 132.0) && ($NF < 132.2)}'
echo "Invalid command-line argument combinations." 1>&2
echo "Error messages should appear below the line." 1>&2
echo "-----------------------------------------------------------" 1>&2
echo "Test Error: Should print 1 four times"
tmpdir=${tmpdir:-/tmp}
output_ppm=${tmpdir}/output.ppm
pambrighten -v -120 testimg.ppm > ${output_ppm}
echo $?
test -s ${output_ppm}
echo $?
pambrighten -s -120 testimg.ppm > ${output_ppm}
echo $?
test -s ${output_ppm}
echo $?
rm ${output_ppm}
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