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#! /bin/bash
# This script tests: pbmtext
# Also requires: pamfile

tmpdir=${tmpdir:-/tmp}

# Test 1:

# Should print 3898818212 967 twice

pbmtext UNIX Philosophy: Do one thing and do it well. | cksum
echo -n "UNIX Philosophy: Do one thing and do it well." | pbmtext | cksum

# Should print 2506052117 1354 twice

pbmtext -builtin fixed \
    For truth is always strange. Stranger than fiction. Lord Byron | cksum
echo -n "For truth is always strange. Stranger than fiction. Lord Byron" | \
    pbmtext -builtin fixed | cksum


text="The quick brown fog jumps over the lazy docs."

# Test 2:

for flags in "" "-nomargins" "-builtin fixed"
do
echo ${text} | pbmtext ${flags} | cksum
done

temp_pbm=${tmpdir}/temp.pbm


# Test 3: Check if image is produced unaltered when -width is specified
# Should print 1028079028 967 twice, then 1305436978 1018 twice

for flags in "" "-builtin fixed"
do
pbmtext ${flags} ${text} | tee ${temp_pbm} | cksum
width1=`pamfile ${temp_pbm} | awk '$2=="PBM" && NR==1 {w=$4}; END {print w}' `
width2=`pbmtext ${flags} ${text} --dry-run | awk '{print $1}' `

if [ ${width1} -eq ${width2} ]; then
    pbmtext ${flags} -width=${width1} ${text} | cksum
else
    echo ${width1} ${width2}
fi
rm ${temp_pbm}
done


# Test 4: Should print 1647614653 2027 three times
# Note: backslashes inserted in 3 locations in the rectange to make
# possible input as a here document.

fontRectangle_txt=${tmpdir}/fontRectangle.txt
font_pbm=${tmpdir}/font.pbm

cat > ${fontRectangle_txt} << EOF
M ",/^_[\`jpqy| M

/  !"#$%&'()*+ /
< ,-./01234567 <
> 89:;<=>?@ABC >
@ DEFGHIJKLMNO @
_ PQRSTUVWXYZ[ _
{ \\]^_\`abcdefg {
} hijklmnopqrs }
~ tuvwxyz{|}~  ~

M ",/^_[\`jpqy| M
EOF

pbmtext -dump-sheet -builtin fixed | tee ${font_pbm}      | cksum
cat ${fontRectangle_txt} | pbmtext -nom -builtin fixed    | cksum
cat ${fontRectangle_txt} | pbmtext -nom -font ${font_pbm} | cksum
rm ${fontRectangle_txt} ${font_pbm}


# Test 5: Print all characters defined in the built-in bdf font

# One long row
# Should print 3233136020 4535
LC_ALL=C \
awk 'BEGIN { for (i=32; i<=125;++i) printf("%c",i);
             for (i=160;i<=255;++i) printf("%c",i); }' | \
    pbmtext -builtin bdf | cksum

# One tall column
# Should print 1216262214 5711
LC_ALL=C \
awk 'BEGIN { for (i=32; i<=125;++i) printf("%c\n",i);
             for (i=160;i<=255;++i) printf("%c\n",i); }' | \
    pbmtext -nomargins -builtin bdf | cksum