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use strict;
use warnings;
# Should be 28.
use Test::More tests => 28;
use XML::LibXSLT;
use XML::LibXML 1.59;
my $parser = XML::LibXML->new();
# parser
# TEST
ok ($parser, 'Parser was initted.');
my $doc = $parser->parse_string(<<'EOT');
<xml>random contents</xml>
EOT
# doc
# TEST
ok ($doc, 'Doc was initted.');
my $xslt = XML::LibXSLT->new();
# xslt
# TEST
ok ($xslt, 'xslt was initted.');
my $stylsheetstring = <<'EOT';
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/1999/xhtml">
<xsl:template match="/">
<html>
<head><title>Know Your Dromedaries</title></head>
<body>
<h1><xsl:apply-templates/></h1>
<p>foo: <xsl:apply-templates select="document('foo.xml')/*" /></p>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
EOT
my $icb = XML::LibXML::InputCallback->new();
# TEST
ok ($icb, 'icb was initted.');
# registering callbacks
$icb->register_callbacks( [ \&match_cb, \&open_cb,
\&read_cb, \&close_cb ] );
$xslt->input_callbacks($icb);
my $stylesheet = $xslt->parse_stylesheet($parser->parse_string($stylsheetstring));
# stylesheet
# TEST
ok ($stylesheet, 'stylesheet is OK.');
#$stylesheet->input_callbacks($icb);
# warn "transforming\n";
my $results = $stylesheet->transform($doc);
# results
# TEST
ok ($results, 'results is OK.');
my $output = $stylesheet->output_string($results);
# warn "output: $output\n";
# TEST
ok ($output, 'output is OK.');
# test a dying close callback
# callbacks can only be registered as a callback group
$stylesheet->match_callback( \&match_cb );
$stylesheet->open_callback( \&dying_open_cb );
$stylesheet->read_callback( \&read_cb );
$stylesheet->close_callback( \&close_cb );
# check if transform throws an exception
# dying callback test
eval {
$stylesheet->transform($doc);
};
{
my $E = $@;
# TEST
ok ($E, "Threw: $E");
}
#
# test the old global|local-variables-using callback interface
#
$xslt = undef;
$stylesheet = undef;
$xslt = XML::LibXSLT->new();
$stylesheet = $xslt->parse_stylesheet($parser->parse_string($stylsheetstring));
{
# setting callbacks
local $XML::LibXML::match_cb = \&match_cb;
local $XML::LibXML::open_cb = \&open_cb;
local $XML::LibXML::close_cb = \&close_cb;
local $XML::LibXML::read_cb = \&read_cb;
# warn "transform!\n";
$results = $stylesheet->transform($doc);
# results
# TEST
ok ($results, 'results is OK - 2.');
$output = $stylesheet->output_string($results);
# warn "output: $output\n";
# output
# TEST
ok ($output, 'output is OK - 2.');
$XML::LibXML::open_cb = \&dying_open_cb;
# check if the transform throws an exception
eval {
$stylesheet->transform($doc);
};
{
my $E = $@;
# TEST
ok ($E, "Transform Threw: $E");
}
}
#
# test callbacks for parse_stylesheet()
#
$xslt = undef;
$stylesheet = undef;
$icb = undef;
$xslt = XML::LibXSLT->new();
$icb = XML::LibXML::InputCallback->new();
# registering callbacks
$icb->register_callbacks( [ \&match_cb, \&stylesheet_open_cb,
\&read_cb, \&close_cb ] );
$xslt->input_callbacks($icb);
$stylsheetstring = <<'EOT';
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/1999/xhtml">
<xsl:import href="foo.xml"/>
<xsl:template match="/">
<html>
<head><title>Know Your Dromedaries</title></head>
<body>
<h1><xsl:apply-templates/></h1>
<p>Dahut!</p>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
EOT
$stylesheet = $xslt->parse_stylesheet($parser->parse_string($stylsheetstring));
# stylesheet
# TEST
ok ($stylesheet, 'stylesheet is OK - 2.');
#
# Test not matching callback
# This also verifies that all the previous callbacks were unregistered.
#
$xslt = undef;
$stylesheet = undef;
$icb = undef;
$xslt = XML::LibXSLT->new();
$icb = XML::LibXML::InputCallback->new();
# registering callbacks
$icb->register_callbacks( [ \&match_cb, \&stylesheet_open_cb,
\&read_cb, \&close_cb ] );
$xslt->input_callbacks($icb);
my $no_match_count = 0;
$stylsheetstring = <<'EOT';
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<result>
<xsl:apply-templates select="document('not-found.xml')/*"/>
</result>
</xsl:template>
</xsl:stylesheet>
EOT
$stylesheet = $xslt->parse_stylesheet($parser->parse_string($stylsheetstring));
# stylesheet
# TEST
ok ($stylesheet, 'stylesheet is OK - 3.');
$results = $stylesheet->transform($doc);
# results
# TEST
ok ($results, 'results is OK - 3.');
# no_match_count
# TEST
is ($no_match_count, 1, 'match_cb called once if no match');
#
# input callback functions
#
sub match_cb {
my $uri = shift;
# match_cb
if ($uri eq "foo.xml") {
# TEST*5
ok(1, 'URI is OK in match_cb.');
return 1;
}
if ($uri eq "not-found.xml") {
++$no_match_count;
return 0;
}
return 0;
}
sub open_cb {
my $uri = shift;
# TEST*2
is ($uri, 'foo.xml', 'URI is OK in open_cb.');
my $str ="<foo>Text here</foo>";
return \$str;
}
sub dying_open_cb {
my $uri = shift;
# dying_open_cb: $uri
# TEST*2
is ($uri, 'foo.xml', 'dying_open_cb');
die "Test a die from open_cb";
}
sub stylesheet_open_cb {
my $uri = shift;
# TEST
is ($uri, 'foo.xml', 'stylesheet_open_cb uri compare.');
my $str = '<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"/>';
return \$str;
}
sub close_cb {
# warn("close\n");
# TEST*3
ok(1, 'close_cb()');
}
sub read_cb {
# warn("read\n");
return substr(${$_[0]}, 0, $_[1], "");
}
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