xz/tests/test_compress.sh

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#!/bin/sh
###############################################################################
#
# Author: Lasse Collin
#
# This file has been put into the public domain.
# You can do whatever you want with this file.
#
###############################################################################
# If xz wasn't built, this test is skipped.
if test -x ../src/xz/xz ; then
:
else
(exit 77)
exit 77
fi
# Find out if our shell supports functions.
eval 'unset foo ; foo() { return 42; } ; foo'
if test $? != 42 ; then
echo "/bin/sh doesn't support functions, skipping this test."
(exit 77)
exit 77
fi
test_xz() {
if $XZ -c "$@" "$FILE" > "$TMP_COMP"; then
:
else
echo "Compressing failed: $* $FILE"
(exit 1)
exit 1
fi
if $XZ -cd "$TMP_COMP" > "$TMP_UNCOMP" ; then
:
else
echo "Decompressing failed: $* $FILE"
(exit 1)
exit 1
fi
if cmp "$TMP_UNCOMP" "$FILE" ; then
:
else
echo "Decompressed file does not match" \
"the original: $* $FILE"
(exit 1)
exit 1
fi
if test -n "$XZDEC" ; then
if $XZDEC "$TMP_COMP" > "$TMP_UNCOMP" ; then
:
else
echo "Decompressing failed: $* $FILE"
(exit 1)
exit 1
fi
if cmp "$TMP_UNCOMP" "$FILE" ; then
:
else
echo "Decompressed file does not match" \
"the original: $* $FILE"
(exit 1)
exit 1
fi
fi
}
XZ="../src/xz/xz --memlimit-compress=48MiB --memlimit-decompress=5MiB \
--no-adjust --threads=1 --check=crc64"
XZDEC="../src/xzdec/xzdec" # No memory usage limiter available
test -x ../src/xzdec/xzdec || XZDEC=
# Create the required input file if needed.
FILE=$1
case $FILE in
compress_generated_*)
if ./create_compress_files "${FILE#compress_generated_}" ; then
:
else
rm -f "$FILE"
echo "Failed to create the file '$FILE'."
(exit 1)
exit 1
fi
;;
'')
echo "No test file was specified."
(exit 1)
exit 1
;;
esac
# Derive temporary filenames for compressed and uncompressed outputs
# from the input filename. This is needed when multiple tests are
# run in parallel.
TMP_COMP="tmp_comp_${FILE##*/}"
TMP_UNCOMP="tmp_uncomp_${FILE##*/}"
# Remove temporary now (in case they are something weird), and on exit.
rm -f "$TMP_COMP" "$TMP_UNCOMP"
trap 'rm -f "$TMP_COMP" "$TMP_UNCOMP"' 0
# Compress and decompress the file with various filter configurations.
#
# Don't test with empty arguments; it breaks some ancient
# proprietary /bin/sh versions due to $@ used in test_xz().
test_xz -1
test_xz -2
test_xz -3
test_xz -4
for ARGS in \
--delta=dist=1 \
--delta=dist=4 \
--delta=dist=256 \
--x86 \
--powerpc \
--ia64 \
--arm \
--armthumb \
--sparc
do
test_xz $ARGS --lzma2=dict=64KiB,nice=32,mode=fast
done
(exit 0)
exit 0