source: branches/3.2/mindi-busybox/archival/bbunzip_test.sh @ 3232

Last change on this file since 3232 was 2725, checked in by bruno, 8 years ago
  • Update mindi-busybox to 1.18.3 to avoid problems with the tar command which is now failing on recent versions with busybox 1.7.3
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 1.6 KB
Line 
1#!/bin/sh
2# Test that concatenated gz files are unpacking correctly.
3# It also tests that unpacking in general is working right.
4# Since zip code has many corner cases, run it for a few hours
5# to get a decent coverage (200000 tests or more).
6
7gzip="gzip"
8gunzip="../busybox gunzip"
9# Or the other way around:
10#gzip="../busybox gzip"
11#gunzip="gunzip"
12
13c=0
14i=$PID
15while true; do
16    c=$((c+1))
17
18    # RANDOM is not very random on some shells. Spice it up.
19    # 100003 is prime
20    len1=$(( (((RANDOM*RANDOM)^i) & 0x7ffffff) % 100003 ))
21    i=$((i * 1664525 + 1013904223))
22    len2=$(( (((RANDOM*RANDOM)^i) & 0x7ffffff) % 100003 ))
23
24    # Just using urandom will make gzip use method 0 (store) -
25    # not good for test coverage!
26    cat /dev/urandom | while true; do read junk; echo "junk $c $i $junk"; done \
27    | dd bs=$len1 count=1 >z1 2>/dev/null
28    cat /dev/urandom | while true; do read junk; echo "junk $c $i $junk"; done \
29    | dd bs=$len2 count=1 >z2 2>/dev/null
30
31    $gzip <z1 >zz.gz
32    $gzip <z2 >>zz.gz
33    $gunzip -c zz.gz >z9 || {
34    echo "Exitcode $?"
35    exit
36    }
37    sum=`cat z1 z2 | md5sum`
38    sum9=`md5sum <z9`
39    test "$sum" == "$sum9" || {
40    echo "md5sums don't match"
41    exit
42    }
43    echo "Test $c ok: len1=$len1 len2=$len2 sum=$sum"
44
45    sum=`cat z1 z2 z1 z2 | md5sum`
46    rm z1.gz z2.gz 2>/dev/null
47    $gzip z1
48    $gzip z2
49    cat z1.gz z2.gz z1.gz z2.gz >zz.gz
50    $gunzip -c zz.gz >z9 || {
51    echo "Exitcode $? (2)"
52    exit
53    }
54    sum9=`md5sum <z9`
55    test "$sum" == "$sum9" || {
56    echo "md5sums don't match (1)"
57    exit
58    }
59
60    echo "Test $c ok: len1=$len1 len2=$len2 sum=$sum (2)"
61done
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