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#! /bin/sh
# This script tests: pgmnoise
# Also requires: pgmhist pamvalidate pamfile
echo "Test 1."
echo "Should print: 2132901423 10015" # (Mersenne Twister)
# 1663614689 10015 (Glibc rand())
# 3516404574 10015 (MAC OS rand())
pgmnoise --randomseed=0 100 100 | cksum
echo "Test 2."
# Output is similar to that of Test 2. of random-generator.test
# The lowest four decimal digits are printed.
pgmnoise --randomseed=5489 -maxval=9999 -plain 5 20
echo "Test 3."
for maxval in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 255 65535
do
echo ${maxval}
pgmnoise -maxval=${maxval} -randomseed=1 -plain 16 1 | tr '\n' ' '
done
echo
echo "Test 4."
# Check for maxval violation
for maxval in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 \
30 31 32 254 255 256 65534 65535
do
printf "%d " ${maxval}
pgmnoise -maxval=${maxval} -randomseed=1 -plain ${maxval} 10 | \
pamvalidate | pamfile
done
echo "Test 5."
echo "Should print four identical lines"
# width height values do not affect random number sequence
for xysize in "1 10000" "100 100" "250 40" "1000 10"
do pgmnoise --randomseed=0 ${xysize} | pgmhist -mach | cksum
done
tmpdir=${tmpdir:-/tmp}
outfile=${tmpdir}/out
echo "Test 6."
echo "First column should be 2^n - 1. Last column should be 'pool'."
# The "pool" method of generating pixvals is used iff maxval is
# a power of 2 minus 1: 1, 3, 7, 15, 31 ...
for maxval in \
1 2 3 4 5 6 7 8 9 \
10 11 12 13 14 15 16 17 18 19 \
20 21 22 23 24 25 26 27 28 29 \
30 31 32 33 60 61 62 63 64 65 \
127 255 511 1023 65535 \
129 142 186 219 677 1068 1788 1820 2067 2154 2301 2317 \
5180 5321 5596 6304 7565 9525 \
10501 14178 25797 27451 28653
do
pgmnoise -maxval=${maxval} -plain -randomseed=1 -verbose 1 1 \
> /dev/null 2> ${outfile}
awk -v mval=${maxval} '/method/ && /pool/ { print mval, $0 }' ${outfile}
rm ${outfile}
done
echo "Test Invalid"
test_out=${tmpdir}/test_out
echo 1>&2
echo "Invalid command-line arguments." 1>&2
echo "Error messages should appear below the line." 1>&2
echo "-----------------------------------------------------------" 1>&2
pgmnoise 0 0 > ${test_out} || \
printf "Expected failure 1 "
test -s ${test_out} && echo "unexpected output" || echo "(no output)"
rm -f ${test_out}
pgmnoise 0 1 > ${test_out} || \
printf "Expected failure 2 "
test -s ${test_out} && echo "unexpected output" || echo "(no output)"
rm -f ${test_out}
pgmnoise 1 0 > ${test_out} || \
printf "Expected failure 3 "
test -s ${test_out} && echo "unexpected output" || echo "(no output)"
rm -f ${test_out}
pgmnoise > ${test_out} || \
printf "Expected failure 4 "
test -s ${test_out} && echo "unexpected output" || echo "(no output)"
rm -f ${test_out}
pgmnoise 1 > ${test_out} || \
printf "Expected failure 5 "
test -s ${test_out} && echo "unexpected output" || echo "(no output)"
rm -f ${test_out}
pgmnoise 100 -1 > ${test_out} || \
printf "Expected failure 6 "
test -s ${test_out} && echo "unexpected output" || echo "(no output)"
rm -f ${test_out}
pgmnoise -randomseed=-1 100 100 > ${test_out} || \
printf "Expected failure 7 "
test -s ${test_out} && echo "unexpected output" || echo "(no output)"
rm -f ${test_out}
pgmnoise -maxval=-1 100 100 > ${test_out} || \
printf "Expected failure 8 "
test -s ${test_out} && echo "unexpected output" || echo "(no output)"
rm -f ${test_out}
pgmnoise -maxval=0 100 100 > ${test_out} || \
printf "Expected failure 9 "
test -s ${test_out} && echo "unexpected output" || echo "(no output)"
rm -f ${test_out}
pgmnoise -maxval=$((256 * 256 * 256 * 256)) 10 10 > ${test_out} || \
printf "Expected failure 10 "
test -s ${test_out} && echo "unexpected output" || echo "(no output)"
rm -f ${test_out}
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