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<?php
/**
* base include file for SimpleTest
* @package SimpleTest
* @subpackage UnitTester
* @version $Id: errors.php,v 1.14 2006/02/06 06:05:18 lastcraft Exp $
*/
/** @ignore - PHP5 compatibility fix. */
if (! defined('E_STRICT')) {
define('E_STRICT', 2048);
}
/**#@+
* Includes SimpleTest files.
*/
require_once(dirname(__FILE__) . '/invoker.php');
/**
* Extension that traps errors into an error queue.
* @package SimpleTest
* @subpackage UnitTester
*/
class SimpleErrorTrappingInvoker extends SimpleInvokerDecorator {
/**
* Stores the invoker to wrap.
* @param SimpleInvoker $invoker Test method runner.
*/
function SimpleErrorTrappingInvoker($invoker) {
$this->SimpleInvokerDecorator($invoker);
}
/**
* Invokes a test method and dispatches any
* untrapped errors. Called back from
* the visiting runner.
* @param string $method Test method to call.
* @access public
*/
function invoke($method) {
set_error_handler('simpleTestErrorHandler');
parent::invoke($method);
$queue = SimpleErrorQueue::instance();
while (list($severity, $message, $file, $line, $globals) = $queue->extract()) {
$severity = SimpleErrorQueue::getSeverityAsString($severity);
$test_case = $this->getTestCase();
$test_case->error($severity, $message, $file, $line);
}
restore_error_handler();
}
}
/**
* Singleton error queue used to record trapped
* errors.
* @package SimpleTest
* @subpackage UnitTester
*/
class SimpleErrorQueue {
protected $_queue;
/**
* Starts with an empty queue.
* @access public
*/
function SimpleErrorQueue() {
$this->clear();
}
/**
* Adds an error to the front of the queue.
* @param $severity PHP error code.
* @param $message Text of error.
* @param $filename File error occoured in.
* @param $line Line number of error.
* @param $super_globals Hash of PHP super global arrays.
* @access public
*/
function add($severity, $message, $filename, $line, $super_globals) {
array_push(
$this->_queue,
array($severity, $message, $filename, $line, $super_globals));
}
/**
* Pulls the earliest error from the queue.
* @return False if none, or a list of error
* information. Elements are: severity
* as the PHP error code, the error message,
* the file with the error, the line number
* and a list of PHP super global arrays.
* @access public
*/
function extract() {
if (count($this->_queue)) {
return array_shift($this->_queue);
}
return false;
}
/**
* Discards the contents of the error queue.
* @access public
*/
function clear() {
$this->_queue = array();
}
/**
* Tests to see if the queue is empty.
* @return True if empty.
*/
function isEmpty() {
return (count($this->_queue) == 0);
}
/**
* Global access to a single error queue.
* @return Global error queue object.
* @access public
* @static
*/
static function instance() {
static $queue = false;
if (! $queue) {
$queue = new SimpleErrorQueue();
}
return $queue;
}
/**
* Converst an error code into it's string
* representation.
* @param $severity PHP integer error code.
* @return String version of error code.
* @access public
* @static
*/
static function getSeverityAsString($severity) {
static $map = array(
E_STRICT => 'E_STRICT',
E_ERROR => 'E_ERROR',
E_WARNING => 'E_WARNING',
E_PARSE => 'E_PARSE',
E_NOTICE => 'E_NOTICE',
E_CORE_ERROR => 'E_CORE_ERROR',
E_CORE_WARNING => 'E_CORE_WARNING',
E_COMPILE_ERROR => 'E_COMPILE_ERROR',
E_COMPILE_WARNING => 'E_COMPILE_WARNING',
E_USER_ERROR => 'E_USER_ERROR',
E_USER_WARNING => 'E_USER_WARNING',
E_USER_NOTICE => 'E_USER_NOTICE');
return $map[$severity];
}
}
/**
* Error handler that simply stashes any errors into the global
* error queue. Simulates the existing behaviour with respect to
* logging errors, but this feature may be removed in future.
* @param $severity PHP error code.
* @param $message Text of error.
* @param $filename File error occoured in.
* @param $line Line number of error.
* @param $super_globals Hash of PHP super global arrays.
* @static
* @access public
*/
function simpleTestErrorHandler($severity, $message, $filename, $line, $super_globals) {
if ($severity = $severity & error_reporting()) {
restore_error_handler();
if (ini_get('log_errors')) {
$label = SimpleErrorQueue::getSeverityAsString($severity);
error_log("$label: $message in $filename on line $line");
}
$queue = SimpleErrorQueue::instance();
$queue->add($severity, $message, $filename, $line, $super_globals);
set_error_handler('simpleTestErrorHandler');
}
}
?>
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