<?php
    /**
     *	base include file for SimpleTest
     *	@package	SimpleTest
     *	@subpackage	UnitTester
     *	@version	$Id: xml.php 1398 2006-09-08 19:31:03Z xue $
     */

    /**#@+
     *	include other SimpleTest class files
     */
    require_once(dirname(__FILE__) . '/scorer.php');
    /**#@-*/

    /**
     *    Creates the XML needed for remote communication
     *    by SimpleTest.
	 *	  @package SimpleTest
	 *	  @subpackage UnitTester
     */
    class XmlReporter extends SimpleReporter {
        protected $_indent;
        protected $_namespace;

        /**
         *    Does nothing yet.
         *    @access public
         */
        function XmlReporter($namespace = false, $indent = '  ') {
            $this->SimpleReporter();
            $this->_namespace = ($namespace ? $namespace . ':' : '');
            $this->_indent = $indent;
        }

        /**
         *    Calculates the pretty printing indent level
         *    from the current level of nesting.
         *    @param integer $offset  Extra indenting level.
         *    @return string          Leading space.
         *    @access protected
         */
        function _getIndent($offset = 0) {
            return str_repeat(
                    $this->_indent,
                    count($this->getTestList()) + $offset);
        }

        /**
         *    Converts character string to parsed XML
         *    entities string.
         *    @param string text        Unparsed character data.
         *    @return string            Parsed character data.
         *    @access public
         */
        function toParsedXml($text) {
            return str_replace(
                    array('&', '<', '>', '"', '\''),
                    array('&amp;', '&lt;', '&gt;', '&quot;', '&apos;'),
                    $text);
        }

        /**
         *    Paints the start of a group test.
         *    @param string $test_name   Name of test that is starting.
         *    @param integer $size       Number of test cases starting.
         *    @access public
         */
        function paintGroupStart($test_name, $size) {
            parent::paintGroupStart($test_name, $size);
            print $this->_getIndent();
            print "<" . $this->_namespace . "group size=\"$size\">\n";
            print $this->_getIndent(1);
            print "<" . $this->_namespace . "name>" .
                    $this->toParsedXml($test_name) .
                    "</" . $this->_namespace . "name>\n";
        }

        /**
         *    Paints the end of a group test.
         *    @param string $test_name   Name of test that is ending.
         *    @access public
         */
        function paintGroupEnd($test_name) {
            print $this->_getIndent();
            print "</" . $this->_namespace . "group>\n";
            parent::paintGroupEnd($test_name);
        }

        /**
         *    Paints the start of a test case.
         *    @param string $test_name   Name of test that is starting.
         *    @access public
         */
        function paintCaseStart($test_name) {
            parent::paintCaseStart($test_name);
            print $this->_getIndent();
            print "<" . $this->_namespace . "case>\n";
            print $this->_getIndent(1);
            print "<" . $this->_namespace . "name>" .
                    $this->toParsedXml($test_name) .
                    "</" . $this->_namespace . "name>\n";
        }

        /**
         *    Paints the end of a test case.
         *    @param string $test_name   Name of test that is ending.
         *    @access public
         */
        function paintCaseEnd($test_name) {
            print $this->_getIndent();
            print "</" . $this->_namespace . "case>\n";
            parent::paintCaseEnd($test_name);
        }

        /**
         *    Paints the start of a test method.
         *    @param string $test_name   Name of test that is starting.
         *    @access public
         */
        function paintMethodStart($test_name) {
            parent::paintMethodStart($test_name);
            print $this->_getIndent();
            print "<" . $this->_namespace . "test>\n";
            print $this->_getIndent(1);
            print "<" . $this->_namespace . "name>" .
                    $this->toParsedXml($test_name) .
                    "</" . $this->_namespace . "name>\n";
        }

        /**
         *    Paints the end of a test method.
         *    @param string $test_name   Name of test that is ending.
         *    @param integer $progress   Number of test cases ending.
         *    @access public
         */
        function paintMethodEnd($test_name) {
            print $this->_getIndent();
            print "</" . $this->_namespace . "test>\n";
            parent::paintMethodEnd($test_name);
        }

        /**
         *    Increments the pass count.
         *    @param string $message        Message is ignored.
         *    @access public
         */
        function paintPass($message) {
            parent::paintPass($message);
            print $this->_getIndent(1);
            print "<" . $this->_namespace . "pass>";
            print $this->toParsedXml($message);
            print "</" . $this->_namespace . "pass>\n";
        }

        /**
         *    Increments the fail count.
         *    @param string $message        Message is ignored.
         *    @access public
         */
        function paintFail($message) {
            parent::paintFail($message);
            print $this->_getIndent(1);
            print "<" . $this->_namespace . "fail>";
            print $this->toParsedXml($message);
            print "</" . $this->_namespace . "fail>\n";
        }

        /**
         *    Paints a PHP error or exception.
         *    @param string $message        Message is ignored.
         *    @access public
         *    @abstract
         */
        function paintError($message) {
            parent::paintError($message);
            print $this->_getIndent(1);
            print "<" . $this->_namespace . "exception>";
            print $this->toParsedXml($message);
            print "</" . $this->_namespace . "exception>\n";
        }

        /**
         *    Paints a simple supplementary message.
         *    @param string $message        Text to display.
         *    @access public
         */
        function paintMessage($message) {
            parent::paintMessage($message);
            print $this->_getIndent(1);
            print "<" . $this->_namespace . "message>";
            print $this->toParsedXml($message);
            print "</" . $this->_namespace . "message>\n";
        }

        /**
         *    Paints a formatted ASCII message such as a
         *    variable dump.
         *    @param string $message        Text to display.
         *    @access public
         */
        function paintFormattedMessage($message) {
            parent::paintFormattedMessage($message);
            print $this->_getIndent(1);
            print "<" . $this->_namespace . "formatted>";
            print "<![CDATA[$message]]>";
            print "</" . $this->_namespace . "formatted>\n";
        }

        /**
         *    Serialises the event object.
         *    @param string $type        Event type as text.
         *    @param mixed $payload      Message or object.
         *    @access public
         */
        function paintSignal($type, $payload) {
            parent::paintSignal($type, $payload);
            print $this->_getIndent(1);
            print "<" . $this->_namespace . "signal type=\"$type\">";
            print "<![CDATA[" . serialize($payload) . "]]>";
            print "</" . $this->_namespace . "signal>\n";
        }

        /**
         *    Paints the test document header.
         *    @param string $test_name     First test top level
         *                                 to start.
         *    @access public
         *    @abstract
         */
        function paintHeader($test_name) {
            if (! SimpleReporter::inCli()) {
                header('Content-type: text/xml');
            }
            print "<?xml version=\"1.0\"";
            if ($this->_namespace) {
                print " xmlns:" . $this->_namespace .
                        "=\"www.lastcraft.com/SimpleTest/Beta3/Report\"";
            }
            print "?>\n";
            print "<" . $this->_namespace . "run>\n";
        }

        /**
         *    Paints the test document footer.
         *    @param string $test_name        The top level test.
         *    @access public
         *    @abstract
         */
        function paintFooter($test_name) {
            print "</" . $this->_namespace . "run>\n";
        }
    }

    /**
     *    Accumulator for incoming tag. Holds the
     *    incoming test structure information for
     *    later dispatch to the reporter.
	 *	  @package SimpleTest
	 *	  @subpackage UnitTester
     */
    class NestingXmlTag {
        protected $_name;
        protected $_attributes;

        /**
         *    Sets the basic test information except
         *    the name.
         *    @param hash $attributes   Name value pairs.
         *    @access public
         */
        function NestingXmlTag($attributes) {
            $this->_name = false;
            $this->_attributes = $attributes;
        }

        /**
         *    Sets the test case/method name.
         *    @param string $name        Name of test.
         *    @access public
         */
        function setName($name) {
            $this->_name = $name;
        }

        /**
         *    Accessor for name.
         *    @return string        Name of test.
         *    @access public
         */
        function getName() {
            return $this->_name;
        }

        /**
         *    Accessor for attributes.
         *    @return hash        All attributes.
         *    @access protected
         */
        function _getAttributes() {
            return $this->_attributes;
        }
    }

    /**
     *    Accumulator for incoming method tag. Holds the
     *    incoming test structure information for
     *    later dispatch to the reporter.
	 *	  @package SimpleTest
	 *	  @subpackage UnitTester
     */
    class NestingMethodTag extends NestingXmlTag {

        /**
         *    Sets the basic test information except
         *    the name.
         *    @param hash $attributes   Name value pairs.
         *    @access public
         */
        function NestingMethodTag($attributes) {
            $this->NestingXmlTag($attributes);
        }

        /**
         *    Signals the appropriate start event on the
         *    listener.
         *    @param SimpleReporter $listener    Target for events.
         *    @access public
         */
        function paintStart($listener) {
            $listener->paintMethodStart($this->getName());
        }

        /**
         *    Signals the appropriate end event on the
         *    listener.
         *    @param SimpleReporter $listener    Target for events.
         *    @access public
         */
        function paintEnd($listener) {
            $listener->paintMethodEnd($this->getName());
        }
    }

    /**
     *    Accumulator for incoming case tag. Holds the
     *    incoming test structure information for
     *    later dispatch to the reporter.
	 *	  @package SimpleTest
	 *	  @subpackage UnitTester
     */
    class NestingCaseTag extends NestingXmlTag {

        /**
         *    Sets the basic test information except
         *    the name.
         *    @param hash $attributes   Name value pairs.
         *    @access public
         */
        function NestingCaseTag($attributes) {
            $this->NestingXmlTag($attributes);
        }

        /**
         *    Signals the appropriate start event on the
         *    listener.
         *    @param SimpleReporter $listener    Target for events.
         *    @access public
         */
        function paintStart($listener) {
            $listener->paintCaseStart($this->getName());
        }

        /**
         *    Signals the appropriate end event on the
         *    listener.
         *    @param SimpleReporter $listener    Target for events.
         *    @access public
         */
        function paintEnd($listener) {
            $listener->paintCaseEnd($this->getName());
        }
    }

    /**
     *    Accumulator for incoming group tag. Holds the
     *    incoming test structure information for
     *    later dispatch to the reporter.
	 *	  @package SimpleTest
	 *	  @subpackage UnitTester
     */
    class NestingGroupTag extends NestingXmlTag {

        /**
         *    Sets the basic test information except
         *    the name.
         *    @param hash $attributes   Name value pairs.
         *    @access public
         */
        function NestingGroupTag($attributes) {
            $this->NestingXmlTag($attributes);
        }

        /**
         *    Signals the appropriate start event on the
         *    listener.
         *    @param SimpleReporter $listener    Target for events.
         *    @access public
         */
        function paintStart($listener) {
            $listener->paintGroupStart($this->getName(), $this->getSize());
        }

        /**
         *    Signals the appropriate end event on the
         *    listener.
         *    @param SimpleReporter $listener    Target for events.
         *    @access public
         */
        function paintEnd($listener) {
            $listener->paintGroupEnd($this->getName());
        }

        /**
         *    The size in the attributes.
         *    @return integer     Value of size attribute or zero.
         *    @access public
         */
        function getSize() {
            $attributes = $this->_getAttributes();
            if (isset($attributes['SIZE'])) {
                return (integer)$attributes['SIZE'];
            }
            return 0;
        }
    }

    /**
     *    Parser for importing the output of the XmlReporter.
     *    Dispatches that output to another reporter.
	 *	  @package SimpleTest
	 *	  @subpackage UnitTester
     */
    class SimpleTestXmlParser {
        protected $_listener;
        protected $_expat;
        protected $_tag_stack;
        protected $_in_content_tag;
        protected $_content;
        protected $_attributes;

        /**
         *    Loads a listener with the SimpleReporter
         *    interface.
         *    @param SimpleReporter $listener   Listener of tag events.
         *    @access public
         */
        function SimpleTestXmlParser($listener) {
            $this->_listener = $listener;
            $this->_expat = $this->_createParser();
            $this->_tag_stack = array();
            $this->_in_content_tag = false;
            $this->_content = '';
            $this->_attributes = array();
        }

        /**
         *    Parses a block of XML sending the results to
         *    the listener.
         *    @param string $chunk        Block of text to read.
         *    @return boolean             True if valid XML.
         *    @access public
         */
        function parse($chunk) {
            if (! xml_parse($this->_expat, $chunk)) {
                trigger_error('XML parse error with ' .
                        xml_error_string(xml_get_error_code($this->_expat)));
                return false;
            }
            return true;
        }

        /**
         *    Sets up expat as the XML parser.
         *    @return resource        Expat handle.
         *    @access protected
         */
        function &_createParser() {
            $expat = xml_parser_create();
            xml_set_object($expat, $this);
            xml_set_element_handler($expat, '_startElement', '_endElement');
            xml_set_character_data_handler($expat, '_addContent');
            xml_set_default_handler($expat, '_default');
            return $expat;
        }

        /**
         *    Opens a new test nesting level.
         *    @return NestedXmlTag     The group, case or method tag
         *                             to start.
         *    @access private
         */
        function _pushNestingTag($nested) {
            array_unshift($this->_tag_stack, $nested);
        }

        /**
         *    Accessor for current test structure tag.
         *    @return NestedXmlTag     The group, case or method tag
         *                             being parsed.
         *    @access private
         */
        function &_getCurrentNestingTag() {
            return $this->_tag_stack[0];
        }

        /**
         *    Ends a nesting tag.
         *    @return NestedXmlTag     The group, case or method tag
         *                             just finished.
         *    @access private
         */
        function _popNestingTag() {
            return array_shift($this->_tag_stack);
        }

        /**
         *    Test if tag is a leaf node with only text content.
         *    @param string $tag        XML tag name.
         *    @return @boolean          True if leaf, false if nesting.
         *    @private
         */
        function _isLeaf($tag) {
            return in_array($tag, array(
                    'NAME', 'PASS', 'FAIL', 'EXCEPTION', 'MESSAGE', 'FORMATTED', 'SIGNAL'));
        }

        /**
         *    Handler for start of event element.
         *    @param resource $expat     Parser handle.
         *    @param string $tag         Element name.
         *    @param hash $attributes    Name value pairs.
         *                               Attributes without content
         *                               are marked as true.
         *    @access protected
         */
        function _startElement($expat, $tag, $attributes) {
            $this->_attributes = $attributes;
            if ($tag == 'GROUP') {
                $this->_pushNestingTag(new NestingGroupTag($attributes));
            } elseif ($tag == 'CASE') {
                $this->_pushNestingTag(new NestingCaseTag($attributes));
            } elseif ($tag == 'TEST') {
                $this->_pushNestingTag(new NestingMethodTag($attributes));
            } elseif ($this->_isLeaf($tag)) {
                $this->_in_content_tag = true;
                $this->_content = '';
            }
        }

        /**
         *    End of element event.
         *    @param resource $expat     Parser handle.
         *    @param string $tag         Element name.
         *    @access protected
         */
        function _endElement($expat, $tag) {
            $this->_in_content_tag = false;
            if (in_array($tag, array('GROUP', 'CASE', 'TEST'))) {
                $nesting_tag = $this->_popNestingTag();
                $nesting_tag->paintEnd($this->_listener);
            } elseif ($tag == 'NAME') {
                $nesting_tag = $this->_getCurrentNestingTag();
                $nesting_tag->setName($this->_content);
                $nesting_tag->paintStart($this->_listener);
            } elseif ($tag == 'PASS') {
                $this->_listener->paintPass($this->_content);
            } elseif ($tag == 'FAIL') {
                $this->_listener->paintFail($this->_content);
            } elseif ($tag == 'EXCEPTION') {
                $this->_listener->paintError($this->_content);
            } elseif ($tag == 'SIGNAL') {
                $this->_listener->paintSignal(
                        $this->_attributes['TYPE'],
                        unserialize($this->_content));
            } elseif ($tag == 'MESSAGE') {
                $this->_listener->paintMessage($this->_content);
            } elseif ($tag == 'FORMATTED') {
                $this->_listener->paintFormattedMessage($this->_content);
            }
        }

        /**
         *    Content between start and end elements.
         *    @param resource $expat     Parser handle.
         *    @param string $text        Usually output messages.
         *    @access protected
         */
        function _addContent($expat, $text) {
            if ($this->_in_content_tag) {
                $this->_content .= $text;
            }
            return true;
        }

        /**
         *    XML and Doctype handler. Discards all such content.
         *    @param resource $expat     Parser handle.
         *    @param string $default     Text of default content.
         *    @access protected
         */
        function _default($expat, $default) {
        }
    }