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<?php
/**
* base include file for SimpleTest
* @package SimpleTest
* @subpackage UnitTester
* @version $Id: errors.php,v 1.24 2006/11/30 12:20:55 lastcraft Exp $
*/
/**
* @ignore - PHP5 compatibility fix.
*/
if (! defined('E_STRICT')) {
define('E_STRICT', 2048);
}
/**#@+
* Includes SimpleTest files.
*/
require_once dirname(__FILE__) . '/invoker.php';
require_once dirname(__FILE__) . '/test_case.php';
require_once dirname(__FILE__) . '/expectation.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) {
$context = &SimpleTest::getContext();
$queue = &$context->get('SimpleErrorQueue');
$queue->setTestCase($this->GetTestCase());
set_error_handler('SimpleTestErrorHandler');
parent::invoke($method);
while (list($severity, $message, $file, $line) = $queue->extract()) {
$severity = SimpleErrorQueue::getSeverityAsString($severity);
$test = &$this->getTestCase();
$test->error($severity, $message, $file, $line);
}
restore_error_handler();
}
}
/**
* Singleton error queue used to record trapped
* errors.
* @package SimpleTest
* @subpackage UnitTester
*/
class SimpleErrorQueue {
var $_queue;
var $_expectation_queue;
var $_test;
/**
* Starts with an empty queue.
*/
function SimpleErrorQueue() {
$this->clear();
}
/**
* Sets the currently running test case.
* @param SimpleTestCase $test Test case to send messages to.
* @access public
*/
function setTestCase(&$test) {
$this->_test = &$test;
}
/**
* Adds an error to the front of the queue.
* @param integer $severity PHP error code.
* @param string $content Text of error.
* @param string $filename File error occoured in.
* @param integer $line Line number of error.
* @access public
*/
function add($severity, $content, $filename, $line) {
$content = str_replace('%', '%%', $content);
if (count($this->_expectation_queue)) {
$this->_testLatestError($severity, $content, $filename, $line);
} else {
array_push(
$this->_queue,
array($severity, $content, $filename, $line));
}
}
/**
* Tests the error against the most recent expected
* error.
* @param integer $severity PHP error code.
* @param string $content Text of error.
* @param string $filename File error occoured in.
* @param integer $line Line number of error.
* @access private
*/
function _testLatestError($severity, $content, $filename, $line) {
list($expected, $message) = array_shift($this->_expectation_queue);
$severity = $this->getSeverityAsString($severity);
$is_match = $this->_test->assert(
$expected,
$content,
sprintf($message, "%s -> PHP error [$content] severity [$severity] in [$filename] line [$line]"));
if (! $is_match) {
$this->_test->error($severity, $content, $filename, $line);
}
}
/**
* Pulls the earliest error from the queue.
* @return False if none, or a list of error
* information. Elements are: severity
* as the PHP error code, the error message,
* the file with the error, the line number
* and a list of PHP super global arrays.
* @access public
*/
function extract() {
if (count($this->_queue)) {
return array_shift($this->_queue);
}
return false;
}
/**
* Discards the contents of the error queue.
* @access public
*/
function clear() {
$this->_queue = array();
$this->_expectation_queue = array();
}
/**
* @deprecated
*/
function assertNoErrors($message) {
return $this->_test->assert(
new TrueExpectation(),
count($this->_queue) == 0,
sprintf($message, 'Should be no errors'));
}
/**
* @deprecated
*/
function assertError($expected, $message) {
if (count($this->_queue) == 0) {
$this->_test->fail(sprintf($message, 'Expected error not found'));
return false;
}
list($severity, $content, $file, $line) = $this->extract();
$severity = $this->getSeverityAsString($severity);
return $this->_test->assert(
$expected,
$content,
sprintf($message, "Expected PHP error [$content] severity [$severity] in [$file] line [$line]"));
}
/**
* Sets up an expectation of an error. If this is
* not fulfilled at the end of the test, a failure
* will occour. If the error does happen, then this
* will cancel it out and send a pass message.
* @param SimpleExpectation $expected Expected error match.
* @param string $message Message to display.
* @access public
*/
function expectError($expected, $message) {
array_push(
$this->_expectation_queue,
array($expected, $message));
}
/**
* Converts an error code into it's string
* representation.
* @param $severity PHP integer error code.
* @return String version of error code.
* @access public
* @static
*/
function getSeverityAsString($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) {
$severity = $severity & error_reporting();
if ($severity) {
restore_error_handler();
if (ini_get('log_errors')) {
$label = SimpleErrorQueue::getSeverityAsString($severity);
error_log("$label: $message in $filename on line $line");
}
$context = &SimpleTest::getContext();
$queue = &$context->get('SimpleErrorQueue');
$queue->add($severity, $message, $filename, $line);
set_error_handler('SimpleTestErrorHandler');
} else {
if (version_compare(phpversion(), '5.2') >= 0) {
return false;
}
}
}
?>
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