# -*- cperl -*-
# $Id: 24c14n.t,v 1.1.1.2 2007/10/10 23:04:15 ahuda Exp $

##
# these testcases are for xml canonization interfaces.
#

use Test;
use strict;

BEGIN { plan tests => 20 };
use XML::LibXML;
use XML::LibXML::Common qw(:libxml);

my $parser = XML::LibXML->new;

{
    my $doc = $parser->parse_string( "<a><b/> <c/> <!-- d --> </a>" );

    my $c14n_res = $doc->toStringC14N();
    ok( $c14n_res, "<a><b></b> <c></c>  </a>" );

    $c14n_res = $doc->toStringC14N(1);
    ok( $c14n_res, "<a><b></b> <c></c> <!-- d --> </a>" );
}

{
    my $doc = $parser->parse_string( '<a><b/><![CDATA[ >e&f<]]><!-- d --> </a>' );
    
    my $c14n_res = $doc->toStringC14N();
    ok( $c14n_res, '<a><b></b> &gt;e&amp;f&lt; </a>' );
    $c14n_res = $doc->toStringC14N(1);
    ok( $c14n_res, '<a><b></b> &gt;e&amp;f&lt;<!-- d --> </a>' );
}

{
    my $doc = $parser->parse_string( '<a a="foo"/>' );
    
    my $c14n_res;
    $c14n_res = $doc->toStringC14N(0);
    ok( $c14n_res, '<a a="foo"></a>' );
}

{
    my $doc = $parser->parse_string( '<b:a xmlns:b="http://foo"/>' );
    
    my $c14n_res;
    $c14n_res = $doc->toStringC14N(0);
    ok( $c14n_res, '<b:a xmlns:b="http://foo"></b:a>' );
}


# ----------------------------------------------------------------- #
# The C14N says: remove unused namespaces, libxml2 just orders them
# ----------------------------------------------------------------- #
{
    my $doc = $parser->parse_string( '<b:a xmlns:b="http://foo" xmlns:a="xml://bar"/>' );
    
    my $c14n_res;
    $c14n_res = $doc->toStringC14N(0);
    ok( $c14n_res, '<b:a xmlns:a="xml://bar" xmlns:b="http://foo"></b:a>' );

    # would be correct, but will not work.
    # ok( $c14n_res, '<b:a xmlns:b="http://foo"></b:a>' );
}

# ----------------------------------------------------------------- #
# The C14N says: remove redundant namespaces
# ----------------------------------------------------------------- #
{
    my $doc = $parser->parse_string( '<b:a xmlns:b="http://foo"><b:b xmlns:b="http://foo"/></b:a>' );
    
    my $c14n_res;
    $c14n_res = $doc->toStringC14N(0);
    ok( $c14n_res, '<b:a xmlns:b="http://foo"><b:b></b:b></b:a>' );
}

{
    my $doc = $parser->parse_string( '<a xmlns="xml://foo"/>' );
    
    my $c14n_res;
    $c14n_res = $doc->toStringC14N(0);
    ok( $c14n_res, '<a xmlns="xml://foo"></a>' );
}

{
    my $doc = $parser->parse_string( <<EOX );
<?xml version="1.0" encoding="iso-8859-1"?>
<a><b/></a>
EOX

    my $c14n_res;
    $c14n_res = $doc->toStringC14N(0);
    ok( $c14n_res, '<a><b></b></a>' );
}

print "# canonize with xpath expressions\n";
{
    my $doc = $parser->parse_string( <<EOX );
<?xml version="1.0" encoding="iso-8859-1"?>
<a><b><c/><d/></b></a>
EOX
    my $c14n_res;
    $c14n_res = $doc->toStringC14N(0, "//d" );
    ok( $c14n_res, '<d></d>' );
}

{
    my $doc = $parser->parse_string( <<EOX );
<?xml version="1.0" encoding="iso-8859-1"?>
<a xmlns="http://foo/test#"><b><c/><d><e/></d></b></a>
EOX
    my $rootnode=$doc->documentElement;
    my $c14n_res;
    $c14n_res = $rootnode->toStringC14N(0, "//*[local-name()='d']");
    ok( $c14n_res, '<d></d>' );
    ($rootnode) = $doc->findnodes("//*[local-name()='d']");
    $c14n_res = $rootnode->toStringC14N();
    ok( $c14n_res, '<d xmlns="http://foo/test#"><e></e></d>' );
    $rootnode = $doc->documentElement->firstChild;
    $c14n_res = $rootnode->toStringC14N(0);
    ok( $c14n_res, '<b xmlns="http://foo/test#"><c></c><d><e></e></d></b>' );
}

print "# exclusive canonicalization\n";

if (20620 > XML::LibXML::LIBXML_VERSION) {
    skip("skipping Exclusive C14N tests for libxml2 < 2.6.17") for 15..20;
} else {
  my $xml1 = <<EOX;
<n0:local xmlns:n0="http://something.org" xmlns:n3="ftp://example.org">
  <n1:elem2 xmlns:n1="http://example.net" xml:lang="en">
     <n3:stuff xmlns:n3="ftp://example.org"/>
  </n1:elem2>
</n0:local>
EOX

  my $xml2 = <<EOX;
<n2:pdu xmlns:n1="http://example.com"
           xmlns:n2="http://foo.example"
           xml:lang="fr"
           xml:space="retain">
  <n1:elem2 xmlns:n1="http://example.net" xml:lang="en">
     <n3:stuff xmlns:n3="ftp://example.org"/>
  </n1:elem2>
</n2:pdu>
EOX
    my $xpath = "(//. | //@* | //namespace::*)[ancestor-or-self::*[name()='n1:elem2']]";
    my $result = qq(<n1:elem2 xmlns:n1="http://example.net" xml:lang="en">\n     <n3:stuff xmlns:n3="ftp://example.org"></n3:stuff>\n  </n1:elem2>);
    my $result_n0n2 = qq(<n1:elem2 xmlns:n1="http://example.net" xmlns:n2="http://foo.example" xml:lang="en">\n     <n3:stuff xmlns:n3="ftp://example.org"></n3:stuff>\n  </n1:elem2>);
  my $doc1 = $parser->parse_string( $xml1 );
  my $doc2 = $parser->parse_string( $xml2 );

  {
    my $c14n_res = $doc1->toStringEC14N(0, $xpath);
    ok( $c14n_res, $result);
  }
  {
    my $c14n_res = $doc2->toStringEC14N(0, $xpath);
    ok( $c14n_res, $result);
  }
  {
    my $c14n_res = $doc1->toStringEC14N(0, $xpath,[]);
    ok( $c14n_res, $result);
  }
  {
    my $c14n_res = $doc2->toStringEC14N(0, $xpath,[]);
    ok( $c14n_res, $result);
  }
  {
    my $c14n_res = $doc2->toStringEC14N(0, $xpath,['n1','n3']);
    ok( $c14n_res, $result);
  }
  {
    my $c14n_res = $doc2->toStringEC14N(0, $xpath,['n0','n2']);
    ok( $c14n_res, $result_n0n2);
  }

}