xml.php

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        /**
         *    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 {
        var $_listener;
        var $_expat;
        var $_tag_stack;
        var $_in_content_tag;
        var $_content;
        var $_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', 'SKIP', '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 == 'SKIP') {
                $this->_listener->paintSkip($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) {
        }
    }
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