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 => 107 + $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{ 131 title "regression test for #92521: Z_OK instead of Z_BUF_ERROR"; 132 133 # 1M "aaa..." 134 my $in = 'a' x 100000; 135 my ($deflate, $err) = Compress::Raw::Zlib::Deflate->new(WindowBits => -15, 136 MemLevel => 8); 137 ok $deflate ; 138 cmp_ok $err, '==', Z_OK, " status is Z_OK" ; 139 140 my $status = $deflate->deflate($in, my $zip); 141 cmp_ok $status, '==', Z_OK, " status is Z_OK" ; 142 143 cmp_ok $deflate->flush($zip, Z_SYNC_FLUSH), "==", Z_OK; 144 145 # Compression should stop after 10K "aaa..." with Z_BUF_ERROR 146 my $inflate; 147 ($inflate, $err) = Compress::Raw::Zlib::Inflate->new( Bufsize => 10000, 148 LimitOutput => 1, WindowBits => -15 ); 149 ok $inflate ; 150 cmp_ok $err, '==', Z_OK, " status is Z_OK" ; 151 152 $status = $inflate->inflate($zip, my $out); 153 154 cmp_ok length($out), ">=", 10000; 155 #warn 'RESULT: ', length($out), ' of ', length($in), "\n"; 156 cmp_ok $status, '==', Z_BUF_ERROR, " status is Z_BUF_ERROR" ; 157 158} 159 160