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307 lines
8.0 KiB
Bash
307 lines
8.0 KiB
Bash
#!/bin/bash
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# Test for iconv (the program) buffer management.
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# Copyright (C) 2024 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <https://www.gnu.org/licenses/>.
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# Arguments:
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# root of the build tree ($(objpfx-common))
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# test command wrapper (for running on the board/with new ld.so)
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# extra flags to pass to iconv
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# number of times to double the input files in size (default: 0)
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exec 2>&1
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set -e
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exec {logfd}>&1
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codir=$1
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test_program_prefix="$2"
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# Use internal converters to avoid issues with module loading.
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iconv_args="-f ASCII -t UTF-8 $3"
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file_size_doublings=${4-0}
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failure=false
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tmp=`mktemp -d`
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trap 'rm -rf "$tmp"' 0
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echo ABC > "$tmp/abc"
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echo DEF > "$tmp/def"
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echo GGG > "$tmp/ggg"
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echo HH > "$tmp/hh"
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echo XY > "$tmp/xy"
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echo ZT > "$tmp/zt"
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echo OUT > "$tmp/out-template"
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: > "$tmp/empty"
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printf '\xff' > "$tmp/0xff"
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# Length should be a prime number, to help with buffer alignment testing.
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printf '\xc3\xa4\xe2\x80\x94\xe2\x80\x94\xc3\xa4\n' > "$tmp/utf8-sequence"
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# Double all files to produce larger buffers.
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for p in "$tmp"/* ; do
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i=0
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while test $i -lt $file_size_doublings; do
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cat "$p" "$p" > "$tmp/scratch"
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mv "$tmp/scratch" "$p"
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i=$(($i + 1))
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done
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done
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cat "$tmp/xy" "$tmp/0xff" "$tmp/zt" > "$tmp/0xff-wrapped"
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run_iconv () {
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local c=0
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if test "${FUNCNAME[2]}" = main; then
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c=1
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fi
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echo "${BASH_SOURCE[$c]}:${BASH_LINENO[$c]}: iconv $iconv_args $@" >&$logfd
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$test_program_prefix $codir/iconv/iconv_prog $iconv_args "$@"
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}
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check_out_expected () {
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if ! cmp -s "$tmp/out" "$tmp/expected" ; then
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echo "error: iconv output difference" >&$logfd
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echo "*** expected ***" >&$logfd
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cat "$tmp/expected" >&$logfd
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echo "*** actual ***" >&$logfd
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cat "$tmp/out" >&$logfd
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failure=true
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fi
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}
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expect_files () {
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local f
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! test -z "$1"
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cp "$tmp/$1" "$tmp/expected"
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shift
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for f in "$@" ; do
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cat "$tmp/$f" >> "$tmp/expected"
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done
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check_out_expected
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}
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check_out () {
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cat > "$tmp/expected"
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check_out_expected
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}
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expect_exit () {
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local expected=$1
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shift
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# Prevent failure for stopping the script.
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if "$@" ; then
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actual=$?
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else
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actual=$?
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fi
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if test "$actual" -ne "$expected"; then
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echo "error: expected exit status $expected, not $actual" >&$logfd
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exit 1
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fi
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}
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ignore_failure () {
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set +e
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"$@"
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status=$?
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set -e
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}
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# Concatentation test.
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run_iconv -o "$tmp/out" "$tmp/abc" "$tmp/def"
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expect_files abc def
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# Single-file in-place conversion.
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run_iconv -o "$tmp/out" "$tmp/out"
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expect_files abc def
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# Multiple input files with in-place conversion.
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run_iconv -o "$tmp/out" "$tmp/out" "$tmp/abc"
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expect_files abc def abc
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run_iconv -o "$tmp/out" "$tmp/ggg" "$tmp/out"
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expect_files ggg abc def abc
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run_iconv -o "$tmp/out" "$tmp/hh" "$tmp/out" "$tmp/hh"
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expect_files hh ggg abc def abc hh
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cp "$tmp/out-template" "$tmp/out"
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run_iconv -o "$tmp/out" "$tmp/ggg" "$tmp/out" "$tmp/out" "$tmp/ggg"
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expect_files ggg out-template out-template ggg
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cp "$tmp/out-template" "$tmp/out"
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run_iconv -o "$tmp/out" "$tmp/ggg" "$tmp/out" "$tmp/hh" "$tmp/out" "$tmp/ggg"
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expect_files ggg out-template hh out-template ggg
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# Empty output should truncate the output file if exists.
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cp "$tmp/out-template" "$tmp/out"
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run_iconv -o "$tmp/out" </dev/null
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expect_files empty
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cp "$tmp/out-template" "$tmp/out"
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run_iconv -o "$tmp/out" - </dev/null
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expect_files empty
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cp "$tmp/out-template" "$tmp/out"
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run_iconv -o "$tmp/out" /dev/null
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expect_files empty
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cp "$tmp/out-template" "$tmp/out"
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expect_exit 1 run_iconv -c -o "$tmp/out" "$tmp/0xff"
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expect_files empty
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# But not if we are writing to standard output.
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cp "$tmp/out-template" "$tmp/out"
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run_iconv </dev/null >>"$tmp/out"
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expect_files out-template
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cp "$tmp/out-template" "$tmp/out"
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run_iconv - </dev/null >>"$tmp/out"
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expect_files out-template
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cp "$tmp/out-template" "$tmp/out"
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run_iconv /dev/null >>"$tmp/out"
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expect_files out-template
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# Conversion errors should avoid clobbering an existing file if
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# it is also an input file.
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cp "$tmp/0xff" "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" "$tmp/out"
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expect_files 0xff
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cp "$tmp/0xff" "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" < "$tmp/out"
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expect_files 0xff
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cp "$tmp/0xff" "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" - < "$tmp/out"
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expect_files 0xff
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cp "$tmp/0xff-wrapped" "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" "$tmp/out"
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expect_files 0xff-wrapped
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cp "$tmp/0xff-wrapped" "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" < "$tmp/out"
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expect_files 0xff-wrapped
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cp "$tmp/0xff-wrapped" "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" - < "$tmp/out"
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expect_files 0xff-wrapped
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cp "$tmp/0xff-wrapped" "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" "$tmp/abc" "$tmp/out"
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expect_files 0xff-wrapped
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cp "$tmp/0xff-wrapped" "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" "$tmp/abc" - < "$tmp/out"
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expect_files 0xff-wrapped
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# If errors are ignored, the file should be overwritten.
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cp "$tmp/0xff-wrapped" "$tmp/out"
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expect_exit 1 run_iconv -c -o "$tmp/out" "$tmp/out"
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expect_files xy zt
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cp "$tmp/0xff" "$tmp/out"
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expect_exit 1 run_iconv -c -o "$tmp/out" "$tmp/abc" "$tmp/out" "$tmp/def"
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expect_files abc def
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cp "$tmp/out-template" "$tmp/out"
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expect_exit 1 \
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run_iconv -c -o "$tmp/out" "$tmp/abc" "$tmp/0xff" "$tmp/def" 2>"$tmp/err"
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! test -s "$tmp/err"
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expect_files abc def
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cp "$tmp/out-template" "$tmp/out"
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expect_exit 1 run_iconv -c -o "$tmp/out" \
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"$tmp/abc" "$tmp/0xff-wrapped" "$tmp/def" 2>"$tmp/err"
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! test -s "$tmp/err"
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expect_files abc xy zt def
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cp "$tmp/0xff-wrapped" "$tmp/out"
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expect_exit 1 run_iconv -c -o "$tmp/out" "$tmp/out" "$tmp/abc" "$tmp/out" "$tmp/def"
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expect_files xy zt abc xy zt def
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cp "$tmp/0xff-wrapped" "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" \
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"$tmp/out" "$tmp/abc" "$tmp/out" "$tmp/def"
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expect_files 0xff-wrapped
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cp "$tmp/0xff-wrapped" "$tmp/out"
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expect_exit 1 run_iconv -c -o "$tmp/out" \
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"$tmp/abc" "$tmp/out" "$tmp/def" "$tmp/out"
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expect_files abc xy zt def xy zt
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# If the file does not exist yet, it should not be created on error.
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rm "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" "$tmp/0xff"
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! test -e "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" < "$tmp/0xff"
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! test -e "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" "$tmp/abc" "$tmp/0xff" "$tmp/def"
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! test -e "$tmp/out"
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expect_exit 1 run_iconv -o "$tmp/out" "$tmp/abc" - < "$tmp/0xff" "$tmp/def"
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! test -e "$tmp/out"
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# Listing standard input multiple times should not fail (bug 32050).
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run_iconv -o "$tmp/out" "$tmp/xy" - - "$tmp/zt" < "$tmp/abc"
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expect_files xy abc zt
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# NB: Extra iconv args are ignored after this point. Actual
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# multi-byte conversion does not work with tiny buffers.
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iconv_args="-f UTF-8 -t ASCII"
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printf 'x\n\xc3' > "$tmp/incomplete"
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expect_exit 1 run_iconv -o "$tmp/out" "$tmp/incomplete"
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check_out <<EOF
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x
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EOF
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# Test buffering behavior if the buffer ends with an incomplete
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# multi-byte sequence.
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prefix=""
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prefix_length=0
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while test $prefix_length -lt 12; do
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echo "info: testing prefix length $prefix_length" 2>&$logfd
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printf "%s" "$prefix" > "$tmp/prefix"
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cat "$tmp/prefix" "$tmp/utf8-sequence" > "$tmp/tmp"
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iconv_args="-f UTF-8 -t UCS-4"
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run_iconv -o "$tmp/out1" "$tmp/tmp"
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iconv_args="-f UCS-4 -t UTF-8"
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run_iconv -o "$tmp/out" "$tmp/out1"
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expect_files prefix utf8-sequence
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prefix="$prefix@"
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prefix_length=$(($prefix_length + 1))
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done
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if $failure ; then
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exit 1
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fi
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