1BEGIN {
2    if ($ENV{PERL_CORE}) {
3	chdir 't' if -d 't';
4	@INC = ("../lib", "lib/compress");
5    }
6}
7
8use lib qw(t t/compress);
9use strict;
10use warnings;
11
12use Test::More ;
13
14BEGIN {
15    plan skip_all => "Lengthy Tests Disabled\n" .
16                     "set COMPRESS_ZLIB_RUN_ALL or COMPRESS_ZLIB_RUN_MOST to run this test suite"
17        unless defined $ENV{COMPRESS_ZLIB_RUN_ALL} or defined $ENV{COMPRESS_ZLIB_RUN_MOST};
18
19    # use Test::NoWarnings, if available
20    my $extra = 0 ;
21    $extra = 1
22        if eval { require Test::NoWarnings ;  import Test::NoWarnings; 1 };
23
24    plan tests => 625 + $extra;
25
26};
27
28
29use IO::Compress::RawDeflate   qw($RawDeflateError) ;
30use IO::Uncompress::RawInflate qw($RawInflateError) ;
31
32#sub identify
33#{
34#    'IO::Compress::RawDeflate';
35#}
36#
37#require "truncate.pl" ;
38#run();
39
40use CompTestUtils;
41
42my $hello = <<EOM ;
43hello world
44this is a test
45some more stuff on this line
46ad finally...
47EOM
48
49my $blocksize = 10 ;
50
51
52foreach my $CompressClass ( 'IO::Compress::RawDeflate')
53{
54    my $UncompressClass = getInverse($CompressClass);
55    my $Error = getErrorRef($UncompressClass);
56
57    my $compressed ;
58        ok( my $x = new IO::Compress::RawDeflate \$compressed);
59        ok $x->write($hello) ;
60        ok $x->close ;
61
62
63    my $cc = $compressed ;
64
65    my $gz ;
66    ok($gz = new $UncompressClass(\$cc,
67                                  -Transparent => 0))
68            or diag "$$Error\n";
69    my $un;
70    is $gz->read($un, length($hello)), length($hello);
71    ok $gz->close();
72    is $un, $hello ;
73
74    for my $trans (0 .. 1)
75    {
76        title "Testing $CompressClass, Transparent = $trans";
77
78        my $info = $gz->getHeaderInfo() ;
79        my $header_size = $info->{HeaderLength};
80        my $trailer_size = $info->{TrailerLength};
81        ok 1, "Compressed size is " . length($compressed) ;
82        ok 1, "Header size is $header_size" ;
83        ok 1, "Trailer size is $trailer_size" ;
84
85
86        title "Compressed Data Truncation";
87        foreach my $i (0 .. $blocksize)
88        {
89
90            my $lex = new LexFile my $name ;
91
92            ok 1, "Length $i" ;
93            my $part = substr($compressed, 0, $i);
94            writeFile($name, $part);
95            my $gz = new $UncompressClass $name,
96                                       -BlockSize   => $blocksize,
97                                       -Transparent => $trans;
98            if ($trans) {
99                ok $gz;
100                ok ! $gz->error() ;
101                my $buff = '';
102                is $gz->read($buff, length $part), length $part ;
103                is $buff, $part ;
104                ok $gz->eof() ;
105                $gz->close();
106            }
107            else {
108                ok !$gz;
109            }
110        }
111
112        foreach my $i ($blocksize+1 .. length($compressed)-1)
113        {
114
115            my $lex = new LexFile my $name ;
116
117            ok 1, "Length $i" ;
118            my $part = substr($compressed, 0, $i);
119            writeFile($name, $part);
120            ok my $gz = new $UncompressClass $name,
121                                             -BlockSize   => $blocksize,
122                                             -Transparent => $trans;
123            my $un ;
124            my $status = 1 ;
125            $status = $gz->read($un) while $status > 0 ;
126            ok $status < 0 ;
127            ok $gz->eof() ;
128            ok $gz->error() ;
129            $gz->close();
130        }
131    }
132
133}
134
135