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|
#!perl -w
use Test::More tests => 12;
{
package LenDigest;
require Digest::base;
use vars qw(@ISA);
@ISA = qw(Digest::base);
sub new {
my $class = shift;
my $str = "";
bless \$str, $class;
}
sub add {
my $self = shift;
$$self .= join("", @_);
return $self;
}
sub digest {
my $self = shift;
my $len = length($$self);
my $first = ($len > 0) ? substr($$self, 0, 1) : "X";
$$self = "";
return sprintf "$first%04d", $len;
}
}
my $ctx = LenDigest->new;
is($ctx->digest, "X0000");
my $EBCDIC = ord('A') == 193;
if ($EBCDIC) {
is($ctx->hexdigest, "e7f0f0f0f0");
is($ctx->b64digest, "5/Dw8PA");
} else {
is($ctx->hexdigest, "5830303030");
is($ctx->b64digest, "WDAwMDA");
}
$ctx->add("foo");
is($ctx->digest, "f0003");
$ctx->add("foo");
is($ctx->hexdigest, $EBCDIC ? "86f0f0f0f3" : "6630303033");
$ctx->add("foo");
is($ctx->b64digest, $EBCDIC ? "hvDw8PM" : "ZjAwMDM");
open(F, ">xxtest$$") || die;
binmode(F);
print F "abc" x 100, "\n";
close(F) || die;
open(F, "xxtest$$") || die;
$ctx->addfile(*F);
close(F);
unlink("xxtest$$") || warn;
is($ctx->digest, "a0301");
eval {
$ctx->add_bits("1010");
};
like($@, '/^Number of bits must be multiple of 8/');
$ctx->add_bits($EBCDIC ? "11100100" : "01010101");
is($ctx->digest, "U0001");
eval {
$ctx->add_bits("abc", 12);
};
like($@, '/^Number of bits must be multiple of 8/');
$ctx->add_bits("abc", 16);
is($ctx->digest, "a0002");
$ctx->add_bits("abc", 32);
is($ctx->digest, "a0003");
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