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;
11use bytes;
12
13use Test::More ;
14use CompTestUtils;
15
16BEGIN
17{
18    # use Test::NoWarnings, if available
19    my $extra = 0 ;
20    $extra = 1
21        if eval { require Test::NoWarnings ;  import Test::NoWarnings; 1 };
22
23    plan tests => 98 + $extra ;
24
25    use_ok('Compress::Raw::Zlib', 2) ;
26}
27
28
29
30my $hello = "I am a HAL 9000 computer" x 2001;
31my $tmp = $hello ;
32
33my ($err, $x, $X, $status);
34
35ok( ($x, $err) = new Compress::Raw::Zlib::Deflate (-AppendOutput => 1));
36ok $x ;
37cmp_ok $err, '==', Z_OK, "  status is Z_OK" ;
38
39my $out ;
40$status = $x->deflate($tmp, $out) ;
41cmp_ok $status, '==', Z_OK, "  status is Z_OK" ;
42
43cmp_ok $x->flush($out), '==', Z_OK, "  flush returned Z_OK" ;
44
45
46sub getOut { my $x = ''; return \$x }
47
48for my $bufsize (1, 2, 3, 13, 4096, 1024*10)
49{
50    print "#\n#Bufsize $bufsize\n#\n";
51    $tmp = $out;
52
53    my $k;
54    ok(($k, $err) = new Compress::Raw::Zlib::Inflate( AppendOutput => 1,
55                                                      LimitOutput => 1,
56                                                      Bufsize => $bufsize
57                                                    ));
58    ok $k ;
59    cmp_ok $err, '==', Z_OK, "  status is Z_OK" ;
60
61    ok ! defined $k->msg(), "  no msg" ;
62    is $k->total_in(), 0, "  total_in == 0" ;
63    is $k->total_out(), 0, "  total_out == 0" ;
64    my $GOT = getOut();
65    my $prev;
66    my $deltaOK = 1;
67    my $looped = 0;
68    while (length $tmp)
69    {
70        ++ $looped;
71        my $prev = length $GOT;
72        $status = $k->inflate($tmp, $GOT) ;
73        last if $status == Z_STREAM_END || $status == Z_DATA_ERROR || $status == Z_STREAM_ERROR ;
74        $deltaOK = 0 if length($GOT) - $prev > $bufsize;
75    }
76
77    ok $deltaOK, "  Output Delta never > $bufsize";
78    cmp_ok $looped, '>=', 1, "  looped $looped";
79    is length($tmp), 0, "  length of input buffer is zero";
80
81    cmp_ok $status, '==', Z_STREAM_END, "  status is Z_STREAM_END" ;
82    is $$GOT, $hello, "  got expected output" ;
83    ok ! defined $k->msg(), "  no msg" ;
84    is $k->total_in(), length $out, "  length total_in ok" ;
85    is $k->total_out(), length $hello, "  length total_out ok " .  $k->total_out() ;
86}
87
88sub getit
89{
90    my $obj = shift ;
91    my $input = shift;
92
93    my $data ;
94    1 while $obj->inflate($input, $data) != Z_STREAM_END ;
95    return \$data ;
96}
97
98{
99    title "regression test";
100
101    my ($err, $x, $X, $status);
102
103    ok( ($x, $err) = new Compress::Raw::Zlib::Deflate (-AppendOutput => 1));
104    ok $x ;
105    cmp_ok $err, '==', Z_OK, "  status is Z_OK" ;
106
107    my $line1 = ("abcdefghijklmnopq" x 1000) . "\n" ;
108    my $line2 = "second line\n" ;
109    my $text = $line1 . $line2 ;
110    my $tmp = $text;
111
112    my $out ;
113    $status = $x->deflate($tmp, $out) ;
114    cmp_ok $status, '==', Z_OK, "  status is Z_OK" ;
115
116    cmp_ok $x->flush($out), '==', Z_OK, "  flush returned Z_OK" ;
117
118    my $k;
119    ok(($k, $err) = new Compress::Raw::Zlib::Inflate( AppendOutput => 1,
120                                                      LimitOutput => 1
121                                                    ));
122
123
124    my $c = getit($k, $out);
125    is $$c, $text;
126
127
128}
129
130