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 # Find out if our shell supports functions.
  13 eval 'unset foo ; foo() { return 42; } ; foo'
  14 if test $? != 42 ; then
  15         echo "/bin/sh doesn't support functions, skipping this test."
  16         (exit 77)
  17         exit 77
  18 fi
  19
  20 test_xz() {
  21         if $XZ -c "$@" "$FILE" > tmp_compressed; then
  22                 :
  23         else
  24                 echo "Compressing failed: $* $FILE"
  25                 (exit 1)
  26                 exit 1
  27         fi
  28
  29         if $XZ -cd tmp_compressed > tmp_uncompressed ; then
  30                 :
  31         else
  32                 echo "Decoding failed: $* $FILE"
  33                 (exit 1)
  34                 exit 1
  35         fi
  36
  37         if cmp tmp_uncompressed "$FILE" ; then
  38                 :
  39         else
  40                 echo "Decoded file does not match the original: $* $FILE"
  41                 (exit 1)
  42                 exit 1
  43         fi
  44
  45         if $XZDEC tmp_compressed > tmp_uncompressed ; then
  46                 :
  47         else
  48                 echo "Decoding failed: $* $FILE"
  49                 (exit 1)
  50                 exit 1
  51         fi
  52
  53         if cmp tmp_uncompressed "$FILE" ; then
  54                 :
  55         else
  56                 echo "Decoded file does not match the original: $* $FILE"
  57                 (exit 1)
  58                 exit 1
  59         fi
  60
  61         # Show progress:
  62         echo . | tr -d '\n\r'
  63 }
  64
  65 XZ="../src/xz/xz --memory=28MiB --threads=1"
  66 XZDEC="../src/xzdec/xzdec --memory=4MiB"
  67 unset XZ_OPT
  68
  69 # Create the required input files.
  70 if ./create_compress_files ; then
  71         :
  72 else
  73         rm -f compress_*
  74         echo "Failed to create files to test compression."
  75         (exit 1)
  76         exit 1
  77 fi
  78
  79 # Remove temporary now (in case they are something weird), and on exit.
  80 rm -f tmp_compressed tmp_uncompressed
  81 trap 'rm -f tmp_compressed tmp_uncompressed' 0
  82
  83 # Encode and decode each file with various filter configurations.
  84 # This takes quite a bit of time.
  85 echo "test_compress.sh:"
  86 for FILE in compress_generated_* "$srcdir"/compress_prepared_*
  87 do
  88         MSG=`echo "x$FILE" | sed 's,^x,,; s,^.*/,,; s,^compress_,,'`
  89         echo "  $MSG" | tr -d '\n\r'
  90
  91         # Don't test with empty arguments; it breaks some ancient
  92         # proprietary /bin/sh versions due to $@ used in test_xz().
  93         test_xz -1
  94         test_xz -2
  95         test_xz -3
  96         test_xz -4
  97
  98         # Disabled until Subblock format is stable.
  99 #               --subblock \
 100 #               --subblock=size=1 \
 101 #               --subblock=size=1,rle=1 \
 102 #               --subblock=size=1,rle=4 \
 103 #               --subblock=size=4,rle=4 \
 104 #               --subblock=size=8,rle=4 \
 105 #               --subblock=size=8,rle=8 \
 106 #               --subblock=size=4096,rle=12 \
 107 #
 108         for ARGS in \
 109                 --delta=dist=1 \
 110                 --delta=dist=4 \
 111                 --delta=dist=256 \
 112                 --x86 \
 113                 --powerpc \
 114                 --ia64 \
 115                 --arm \
 116                 --armthumb \
 117                 --sparc
 118         do
 119                 test_xz $ARGS --lzma2=dict=64KiB,nice=32,mode=fast
 120
 121                 # Disabled until Subblock format is stable.
 122                 # test_xz --subblock $ARGS --lzma2=dict=64KiB,nice=32,mode=fast
 123         done
 124
 125         echo
 126 done
 127
 128 (exit 0)
 129 exit 0