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#!/bin/sh
# test splitting into newline delineated chunks (-n l/...)
# Copyright (C) 2010-2022 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ split
# invalid number of chunks
echo "split: invalid number of chunks: '1o'" > exp
returns_ 1 split -n l/1o 2>err || fail=1
compare exp err || fail=1
echo "split: -: cannot determine file size" > exp
: | returns_ 1 split -n l/1 2>err || fail=1
compare exp err || fail=1
# N can be greater than the file size
# in which case no data is extracted, or empty files are written
split -n l/10 /dev/null || fail=1
test "$(stat -c %s x* | uniq -c | sed 's/^ *//; s/ /x/')" = "10x0" || fail=1
rm x??
# 'split' should reject any attempt to create an infinitely
# long output file.
returns_ 1 split -n l/2 /dev/zero || fail=1
rm x??
# Repeat the above, but with 1/2, not l/2:
returns_ 1 split -n 1/2 /dev/zero || fail=1
rm x??
# Ensure --elide-empty-files is honored
split -e -n l/10 /dev/null || fail=1
returns_ 1 stat x?? 2>/dev/null || fail=1
# 80 bytes. ~ transformed to \n below
lines=\
12345~1~12345~1~12345~1~12345~1~12345~~~12345~1~12345~1~12345~1~12345~1~12345~1~
printf "%s" "$lines" | tr '~' '\n' > in || framework_failure_
echo "split: invalid chunk number: '16'" > exp
returns_ 1 split -n l/16/15 in 2>err.t || fail=1
sed "s/': .*/'/" < err.t > err || framework_failure_
compare exp err || fail=1
printf '%s' "\
14 16 09 15 16 10
14 08 08 10 14 08 08 10
06 08 08 02 06 08 08 02 06 08 08 10
06 08 02 06 08 00 08 02 06 08 02 06 08 00 10
06 00 08 00 02 06 00 02 06 00 08 00 01 07 00 02 06 00 08 00 02 16
" > exp || framework_failure_
sed 's/00 *//g' exp > exp.elide_empty || framework_failure_
DEBUGGING=
test "$DEBUGGING" && test "$VERBOSE" && set +x
for ELIDE_EMPTY in '' '-e'; do
for IO_BLKSIZE in 1 2 5 10 80 100; do
> out
test "$DEBUGGING" && printf "\n---io-blk-size=$IO_BLKSIZE $ELIDE_EMPTY\n"
for N in 6 8 12 15 22; do
rm -f x*
if test -z "$ELIDE_EMPTY"; then
split ---io-blksize=$IO_BLKSIZE -n l/2/$N in > chunk.k
returns_ 1 stat x* 2>/dev/null || fail=1
fi
split ---io-blksize=$IO_BLKSIZE $ELIDE_EMPTY -n l/$N in
echo $(stat -c "%02s" x*) >> out
if test -z "$ELIDE_EMPTY"; then
compare chunk.k xab || fail=1
fi
if test "$DEBUGGING"; then
# Output partition pattern
size=$(printf "%s" "$lines" | wc -c)
chunk_size=$(($size/$N))
end_size=$(($chunk_size + ($size % $N)))
{
yes "$(printf %${chunk_size}s ])" | head -n$(($N-1))
printf %${end_size}s ]
} | tr -d '\n' | sed "s/\\(^.\\{1,$size\\}\\).*/\\1/"
echo
# Output pattern generated for comparison
for s in $(stat -c "%s" x*); do
#s=0 transitions are not shown
test "$m" = "_" && m=- || m=_
printf "%${s}s" '' | tr ' ' $m
done
echo
# Output lines for reference
echo "$lines"
fi
done
test -z "$ELIDE_EMPTY" && EXP=exp || EXP=exp.elide_empty
compare out $EXP || fail=1
done
done
test "$DEBUGGING" && test "$VERBOSE" && set -x
# Check extraction of particular chunks
> out
printf '1\n12345\n' > exp
split -n l/13/15 in > out
compare exp out || fail=1
> out
printf '' > exp
split -n l/14/15 in > out
compare exp out || fail=1
> out
printf '1\n12345\n1\n' > exp
split -n l/15/15 in > out
compare exp out || fail=1
# test input with no \n at end
printf '12\n34\n5' > in
printf '5' > exp
split -n l/7/7 in > out
compare exp out || fail=1
Exit $fail
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