tests/test_compress.sh

   1 #!/bin/sh
   2
   3 ###############################################################################
   4 #
   5 # Author: Lasse Collin
   6 #
   7 # This file has been put into the public domain.
   8 # You can do whatever you want with this file.
   9 #
  10 ###############################################################################
  11
  12 # If xz wasn't built, this test is skipped.
  13 if test -x ../src/xz/xz ; then
  14         :
  15 else
  16         exit 77
  17 fi
  18
  19 # If compression or decompression support is missing, this test is skipped.
  20 # This isn't perfect as if only some compressors or decompressors are disabled
  21 # then this script can still fail because for now this doesn't check the
  22 # availability of each filter.
  23 if grep 'define HAVE_ENCODERS' ../config.h > /dev/null \
  24                 && grep 'define HAVE_DECODERS' ../config.h > /dev/null ; then
  25         :
  26 else
  27         echo "Compression or decompression support is disabled, skipping this test."
  28         exit 77
  29 fi
  30
  31 # Find out if our shell supports functions.
  32 eval 'unset foo ; foo() { return 42; } ; foo'
  33 if test $? != 42 ; then
  34         echo "/bin/sh doesn't support functions, skipping this test."
  35         exit 77
  36 fi
  37
  38 test_xz() {
  39         if $XZ -c "$@" "$FILE" > "$TMP_COMP"; then
  40                 :
  41         else
  42                 echo "Compressing failed: $* $FILE"
  43                 exit 1
  44         fi
  45
  46         if $XZ -cd "$TMP_COMP" > "$TMP_UNCOMP" ; then
  47                 :
  48         else
  49                 echo "Decompressing failed: $* $FILE"
  50                 exit 1
  51         fi
  52
  53         if cmp "$TMP_UNCOMP" "$FILE" ; then
  54                 :
  55         else
  56                 echo "Decompressed file does not match" \
  57                                 "the original: $* $FILE"
  58                 exit 1
  59         fi
  60
  61         if test -n "$XZDEC" ; then
  62                 if $XZDEC "$TMP_COMP" > "$TMP_UNCOMP" ; then
  63                         :
  64                 else
  65                         echo "Decompressing failed: $* $FILE"
  66                         exit 1
  67                 fi
  68
  69                 if cmp "$TMP_UNCOMP" "$FILE" ; then
  70                         :
  71                 else
  72                         echo "Decompressed file does not match" \
  73                                         "the original: $* $FILE"
  74                         exit 1
  75                 fi
  76         fi
  77 }
  78
  79 XZ="../src/xz/xz --memlimit-compress=48MiB --memlimit-decompress=5MiB \
  80                 --no-adjust --threads=1 --check=crc32"
  81 grep "define HAVE_CHECK_CRC64" ../config.h > /dev/null \
  82                 && XZ="$XZ --check=crc64"
  83 XZDEC="../src/xzdec/xzdec" # No memory usage limiter available
  84 test -x ../src/xzdec/xzdec || XZDEC=
  85
  86 # Create the required input file if needed.
  87 #
  88 # Derive temporary filenames for compressed and uncompressed outputs
  89 # from the input filename. This is needed when multiple tests are
  90 # run in parallel.
  91 FILE=$1
  92 TMP_COMP="tmp_comp_$FILE"
  93 TMP_UNCOMP="tmp_uncomp_$FILE"
  94
  95 case $FILE in
  96         # compress_generated files will be created in the build directory
  97         # in the /tests/ sub-directory.
  98         compress_generated_*)
  99                 if ./create_compress_files "$FILE" ; then
 100                         :
 101                 else
 102                         rm -f "$FILE"
 103                         echo "Failed to create the file '$FILE'."
 104                         exit 1
 105                 fi
 106                 ;;
 107         # compress_prepared files exist in the source directory since they
 108         # do not need to be copied or regenerated.
 109         compress_prepared_*)
 110                 FILE="$srcdir/$FILE"
 111                 ;;
 112         '')
 113                 echo "No test file was specified."
 114                 exit 1
 115                 ;;
 116 esac
 117
 118 # Remove temporary now (in case they are something weird), and on exit.
 119 rm -f "$TMP_COMP" "$TMP_UNCOMP"
 120 trap 'rm -f "$TMP_COMP" "$TMP_UNCOMP"' 0
 121
 122 # Compress and decompress the file with various filter configurations.
 123 #
 124 # Don't test with empty arguments; it breaks some ancient
 125 # proprietary /bin/sh versions due to $@ used in test_xz().
 126 test_xz -1
 127 test_xz -2
 128 test_xz -3
 129 test_xz -4
 130
 131 test_filter()
 132 {
 133         grep "define HAVE_ENCODER_$1" ../config.h > /dev/null || return
 134         grep "define HAVE_DECODER_$1" ../config.h > /dev/null || return
 135         shift
 136         test_xz "$@" --lzma2=dict=64KiB,nice=32,mode=fast
 137 }
 138
 139 test_filter DELTA --delta=dist=1
 140 test_filter DELTA --delta=dist=4
 141 test_filter DELTA --delta=dist=256
 142 test_filter X86 --x86
 143 test_filter POWERPC --power
 144 test_filter IA64 --ia64
 145 test_filter ARM --arm
 146 test_filter ARMTHUMB --armthumb
 147 test_filter SPARC --sparc
 148
 149 exit 0