test::xml::twig(3pm) [debian man page]

Test::XML::Twig(3pm)					User Contributed Perl Documentation				      Test::XML::Twig(3pm)

NAME

       Test::XML::Twig - Test XML::Twig handlers

SYNOPSIS

	 use Test::XML::Twig tests => 2;
	 use My::Twig qw( handler );

	 test_twig_handler(
	     &handler,
	     '<foo/>', '<bar/>',
	     'turns foo to bar',
	 );

	 test_twig_handlers(
	     { twig_handlers => { 'foo' => &handler } },
	     '<foo/>', '<bar/>',
	     'turns foo into bar',
	 );

DESCRIPTION

       This module is for testing XML::Twig handlers.

FUNCTIONS

       All functions are exported.

       get_twig ( INPUT [, ARGS ] )
	   Return a parsed twig of INPUT, or undef on parse failure.  Optionally, ARGS may be supplied as a set of hash-like parameters to be
	   passed into the twig constructor.

       test_twig_handler ( HANDLER, INPUT, EXPECTED, TESTNAME [, COND ] )
	   Parse INPUT, using HANDLER as a twig_handler (i.e: it gets called after the parse tree has been built).  Tests that the result is the
	   same as EXPECTED (which can be either a string of XML or a quoted regex).  HANDLER must be a code ref.

	   Optionally, COND can be supplied.  Instead of the handler being called with the root element of INPUT, COND will be used with
	   first_child() to select an alternative element.

	   Returns true / false depending upon test success.

       test_twig_handlers ( ARGS, INPUT, EXPECTED, TESTNAME )
	   This is similiar to test_twig_handler(), but with more flexibility.	The first argument, ARGS, is a hash reference which can be used to
	   specify any of the ordinary parameters to twig's constructor.  This lets you test things like start_tag_handlers, as well as multiple
	   twig_handlers together.

SEE ALSO

       Test::More, Test::XML, XML::Twig.

AUTHOR

       Dominic Mitchell, <cpan2 (at) semantico.com>

COPYRIGHT AND LICENSE

       Copyright 2002 by semantico

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2009-07-02						      Test::XML::Twig(3pm)

Test::XML::XPath(3pm)					User Contributed Perl Documentation				     Test::XML::XPath(3pm)

NAME

       Test::XML::XPath - Test XPath assertions

SYNOPSIS

	 use Test::XML::XPath tests => 3;
	 like_xpath( '<foo />', '/foo' );   # PASS
	 like_xpath( '<foo />', '/bar' );   # FAIL
	 unlike_xpath( '<foo />', '/bar' ); # PASS

	 is_xpath( '<foo>bar</foo>', '/foo', 'bar' ); # PASS
	 is_xpath( '<foo>bar</foo>', '/bar', 'foo' ); # FAIL

	 # More interesting examples of xpath assertions.
	 my $xml = '<foo attrib="1"><bish><bosh args="42">pub</bosh></bish></foo>';

	 # Do testing for attributes.
	 like_xpath( $xml, '/foo[@attrib="1"]' ); # PASS
	 # Find an element anywhere in the document.
	 like_xpath( $xml, '//bosh' ); # PASS
	 # Both.
	 like_xpath( $xml, '//bosh[@args="42"]' ); # PASS

DESCRIPTION

       This module allows you to assert statements about your XML in the form of XPath statements.  You can say that a piece of XML must contain
       certain tags, with so-and-so attributes, etc.  It will try to use any installed XPath module that it knows about.  Currently, this means
       XML::LibXML and XML::XPath, in that order.

       NB: Normally in XPath processing, the statement occurs from a context node.  In the case of like_xpath(), the context node will always be
       the root node.  In practice, this means that these two statements are identical:

	  # Absolute path.
	  like_xpath( '<foo/>', '/foo' );
	  # Path relative to root.
	  like_xpath( '<foo/>', 'foo' );

       It's probably best to use absolute paths everywhere in order to keep things simple.

       NB: Beware of specifying attributes.  Because they use an @-sign, perl will complain about trying to interpolate arrays if you don't escape
       them or use single quotes.

FUNCTIONS

       like_xpath ( XML, XPATH [, NAME ] )
	   Assert that XML (a string containing XML) matches the statement XPATH.  NAME is the name of the test.

	   Returns true or false depending upon test success.

       unlike_xpath ( XML, XPATH [, NAME ] )
	   This is the reverse of like_xpath().  The test will only pass if XPATH does not generates any matches in XML.

	   Returns true or false depending upon test success.

       is_xpath ( XML, XPATH, EXPECTED [, NAME ] )
	   Evaluates XPATH against XML, and pass the test if the is EXPECTED.  Uses findvalue() internally.

	   Returns true or false depending upon test success.

       set_xpath_processor ( CLASS )
	   Set the class name of the XPath processor used.  It is up to you to ensure that this class is loaded.

       In all cases, XML must be well formed, or the test will fail.

SEE ALSO

       Test::XML.

       XML::XPath, which is the basis for this module.

       If you are not conversant with XPath, there are many tutorials available on the web.  Google will point you at them.  The first one that I
       saw was: <http://www.zvon.org/xxl/XPathTutorial/>, which appears to offer interactive XPath as well as the tutorials.

AUTHOR

       Dominic Mitchell <cpan2 (at) semantico.com>

COPYRIGHT AND LICENSE

       Copyright 2002 by semantico

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2009-07-02						     Test::XML::XPath(3pm)