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|
#! /bin/bash
# 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 `seq 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 `seq 16` 30 31 32 254 255 256 65534 65535
do
echo -n ${maxval} " "
pgmnoise -maxval=${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}
messages=${tmpdir}/messages
echo "Test 6."
echo "First column should be 2^n - 1"
# The "pool" method of generating pixvals is used iff maxval is
# a power of 2 minus 1: 1, 3, 7, 15, 31 ...
for maxval in `seq 35; seq 60 69; seq 120 129; seq 250 259`
do
pgmnoise -maxval=${maxval} -randomseed=1 -verbose 1 1 > /dev/null \
2> ${messages}
awk -v mval=${maxval} '/method/ && /pool/ { print mval, $0 }' ${messages}
done
rm ${messages}
echo "Test Invalid"
test_out=${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} || \
echo -n "Expected failure 1"
test -s ${test_out}; echo " "$?
rm -f ${test_out}
pgmnoise 0 1 > ${test_out} || \
echo -n "Expected failure 2"
test -s ${test_out}; echo " "$?
rm -f ${test_out}
pgmnoise 1 0 > ${test_out} || \
echo -n "Expected failure 3"
test -s ${test_out}; echo " "$?
rm -f ${test_out}
pgmnoise > ${test_out} || \
echo -n "Expected failure 4"
test -s ${test_out}; echo " "$?
rm -f ${test_out}
pgmnoise 1 > ${test_out} || \
echo -n "Expected failure 5"
test -s ${test_out}; echo " "$?
rm -f ${test_out}
pgmnoise 100 -1 > ${test_out} || \
echo -n "Expected failure 6"
test -s ${test_out}; echo " "$?
rm -f ${test_out}
pgmnoise -randomseed=-1 100 100 > ${test_out} || \
echo -n "Expected failure 7"
test -s ${test_out}; echo " "$?
rm -f ${test_out}
pgmnoise -maxval=-1 100 100 > ${test_out} || \
echo -n "Expected failure 8"
test -s ${test_out}; echo " "$?
rm -f ${test_out}
pgmnoise -maxval=0 100 100 > ${test_out} || \
echo -n "Expected failure 9"
test -s ${test_out}; echo " "$?
rm -f ${test_out}
pgmnoise -maxval=$((256 * 256 * 256 * 256)) 10 10 > ${test_out} || \
echo -n "Expected failure 10"
test -s ${test_out}; echo " "$?
rm -f ${test_out}
|
