* Copyright 2005-2008, Cake Software Foundation, Inc.
* 1785 E. Sahara Avenue, Suite 490-204
* Las Vegas, Nevada 89104
*
* Licensed under The Open Group Test Suite License
* Redistributions of files must retain the above copyright notice.
*
* @filesource
* @copyright Copyright 2005-2008, Cake Software Foundation, Inc.
* @link https://trac.cakephp.org/wiki/Developement/TestSuite CakePHP(tm) Tests
* @package cake
* @subpackage cake.cake.tests.lib
* @since CakePHP(tm) v 1.2.0.4433
* @version $Revision: 6527 $
* @modifiedby $LastChangedBy: gwoo $
* @lastmodified $Date: 2008-03-09 05:07:56 +0100 (Sun, 09 Mar 2008) $
* @license http://www.opensource.org/licenses/opengroup.php The Open Group Test Suite License
*/
App::import('Core', 'Folder');
/**
* Short description for class.
*
* @package cake
* @subpackage cake.cake.tests.lib
*/
class CodeCoverageManager {
/**
* Is this an app test case?
*
* @var string
*/
var $appTest = false;
/**
* Is this an app test case?
*
* @var string
*/
var $pluginTest = false;
/**
* The test case file to analyze
*
* @var string
*/
var $testCaseFile = '';
/**
* The currently used CakeTestReporter
*
* @var string
*/
var $reporter = '';
/**
* undocumented variable
*
* @var string
*/
var $numDiffContextLines = 7;
/**
* Returns a singleton instance
*
* @return object
* @access public
*/
function &getInstance() {
static $instance = array();
if (!isset($instance[0]) || !$instance[0]) {
$instance[0] =& new CodeCoverageManager();
}
return $instance[0];
}
/**
* Starts a new Coverage Analyzation for a given test case file
* @TODO: Works with $_GET now within the function body, which will make it hard when we do code coverage reports for CLI
*
* @param string $testCaseFile
* @param string $reporter
* @return void
*/
function start($testCaseFile, &$reporter) {
$manager =& CodeCoverageManager::getInstance();
$manager->reporter = $reporter;
$thisFile = r('.php', '.test.php', basename(__FILE__));
if (strpos($testCaseFile, $thisFile) !== false) {
trigger_error('Xdebug supports no parallel coverage analysis - so this is not possible.', E_USER_ERROR);
}
if (isset($_GET['app'])) {
$manager->appTest = true;
}
if (isset($_GET['plugin'])) {
$manager->pluginTest = true;
}
$manager->testCaseFile = $testCaseFile;
xdebug_start_code_coverage(XDEBUG_CC_UNUSED | XDEBUG_CC_DEAD_CODE);
}
/**
* Stops the current code coverage analyzation and dumps a nice report depending on the reporter that was passed to start()
*
* @return void
*/
function report($output = true) {
$manager =& CodeCoverageManager::getInstance();
$testObjectFile = $manager->__testObjectFileFromCaseFile($manager->testCaseFile, $manager->appTest);
if (!file_exists($testObjectFile)) {
trigger_error('This test object file is invalid.');
return ;
}
$dump = xdebug_get_code_coverage();
$coverageData = array();
foreach ($dump as $file => $data) {
if ($file == $testObjectFile) {
$coverageData = $data;
break;
}
}
if (empty($coverageData) && $output) {
echo 'The test object file is never loaded.';
}
$execCodeLines = $manager->__getExecutableLines(file_get_contents($testObjectFile));
$result = '';
switch (get_class($manager->reporter)) {
case 'CakeHtmlReporter':
$result = $manager->reportHtmlDiff(@file($testObjectFile), $coverageData, $execCodeLines, $manager->numDiffContextLines);
break;
default:
trigger_error('Currently only HTML reporting is supported for code coverage analysis.');
break;
}
if ($output) {
echo $result;
}
}
/**
* Html reporting
*
* @param string $testObjectFile
* @param string $coverageData
* @param string $execCodeLines
* @param string $output
* @return void
*/
function reportHtml($testObjectFile, $coverageData, $execCodeLines) {
$manager = CodeCoverageManager::getInstance();
$lineCount = $coveredCount = 0;
$report = '';
foreach ($testObjectFile as $num => $line) {
$num++;
$foundByManualFinder = array_key_exists($num, $execCodeLines) && trim($execCodeLines[$num]) != '';
$foundByXdebug = array_key_exists($num, $coverageData) && $coverageData[$num] !== -2;
// xdebug does not find all executable lines (zend engine fault)
if ($foundByManualFinder && $foundByXdebug) {
$class = 'uncovered';
$lineCount++;
if ($coverageData[$num] > 0) {
$class = 'covered';
$coveredCount++;
$numExecuted = $coverageData[$num];
}
} else {
$class = 'ignored';
}
$report .= $manager->__paintCodeline($class, $num, $line);;
}
return $manager->__paintHeader($lineCount, $coveredCount, $report);
}
/**
* Diff reporting
*
* @param string $testObjectFile
* @param string $coverageData
* @param string $execCodeLines
* @param string $output
* @return void
*/
function reportHtmlDiff($testObjectFile, $coverageData, $execCodeLines, $numContextLines) {
$manager = CodeCoverageManager::getInstance();
$total = count($testObjectFile);
$lines = array();
for ($i = 1; $i < $total + 1; $i++) {
$foundByManualFinder = array_key_exists($i, $execCodeLines) && trim($execCodeLines[$i]) != '';
$foundByXdebug = array_key_exists($i, $coverageData);
if (!$foundByManualFinder || !$foundByXdebug || $coverageData[$i] === -2) {
if (array_key_exists($i, $lines)) {
$lines[$i] = 'ignored '.$lines[$i];
} else {
$lines[$i] = 'ignored';
}
continue;
}
if ($coverageData[$i] !== -1) {
if (array_key_exists($i, $lines)) {
$lines[$i] = 'covered '.$lines[$i];
} else {
$lines[$i] = 'covered';
}
continue;
}
$lines[$i] = 'uncovered show';
$foundEndBlockInContextSearch = false;
for ($j = 1; $j <= $numContextLines; $j++) {
$key = $i - $j;
if ($key > 0 && array_key_exists($key, $lines)) {
if (strpos($lines[$key], 'end') !== false) {
$foundEndBlockInContextSearch = true;
if ($j < $numContextLines) {
$lines[$key] = r('end', '', $lines[$key-1]);
}
}
if (strpos($lines[$key], 'uncovered') === false) {
if (strpos($lines[$key], 'covered') !== false) {
$lines[$key] .= ' show';
} else {
$lines[$key] = 'ignored show';
}
}
if ($j == $numContextLines) {
$lineBeforeIsEndBlock = strpos($lines[$key-1], 'end') !== false;
$lineBeforeIsShown = strpos($lines[$key-1], 'show') !== false;
$lineBeforeIsUncovered = strpos($lines[$key-1], 'uncovered') !== false;
if (!$foundEndBlockInContextSearch && !$lineBeforeIsUncovered && ($lineBeforeIsEndBlock)) {
$lines[$key-1] = r('end', '', $lines[$key-1]);
}
if (!$lineBeforeIsShown && !$lineBeforeIsUncovered) {
$lines[$key] .= ' start';
}
}
}
$key = $i + $j;
if ($key < $total) {
$lines[$key] = 'show';
if ($j == $numContextLines) {
$lines[$key] .= ' end';
}
}
}
}
// find the last "uncovered" or "show"n line and "end" its block
$lastShownLine = $manager->__array_strpos($lines, 'show', true);
if (isset($lines[$lastShownLine])) {
$lines[$lastShownLine] .= ' end';
}
// give the first start line another class so we can control the top padding of the entire results
$firstShownLine = $manager->__array_strpos($lines, 'show');
if (isset($lines[$firstShownLine])) {
$lines[$firstShownLine] .= ' realstart';
}
// get the output
$lineCount = $coveredCount = 0;
$report = '';
foreach ($testObjectFile as $num => $line) {
// start line count at 1
$num++;
$class = $lines[$num];
if (strpos($class, 'ignored') === false) {
$lineCount++;
if (strpos($class, 'covered') !== false && strpos($class, 'uncovered') === false) {
$coveredCount++;
}
}
if (strpos($class, 'show') !== false) {
$report .= $manager->__paintCodeline($class, $num, $line);
}
}
return $manager->__paintHeader($lineCount, $coveredCount, $report);
}
/**
* Returns the name of the test object file based on a given test case file name
*
* @param string $file
* @param string $isApp
* @return string name of the test object file
* @access private
*/
function __testObjectFileFromCaseFile($file, $isApp = true) {
$path = ROOT.DS;
if ($isApp) {
$path .= APP_DIR.DS;
} else {
$path .= CAKE;
}
$folderPrefixMap = array(
'behaviors' => 'models',
'components' => 'controllers',
'helpers' => 'views'
);
foreach ($folderPrefixMap as $dir => $prefix) {
if (strpos($file, $dir) === 0) {
$path .= $prefix.DS;
break;
}
}
$testManager =& new TestManager();
$testFile = r($testManager->_testExtension, '.php', $file);
// if this is a file from the test lib, we cannot find the test object file in /cake/libs
// but need to search for it in /cake/test/lib
// would be cool if we could maybe change the test suite folder layout
$folder = new Folder();
$folder->cd(ROOT.DS.CAKE_TESTS_LIB);
$contents = $folder->ls();
if (in_array(basename($testFile), $contents[1])) {
$testFile = basename($testFile);
$path = ROOT.DS.CAKE_TESTS_LIB;
}
$path .= $testFile;
return $path;
}
/**
* Parses a given code string into an array of lines and replaces some non-executable code lines with the needed
* amount of new lines in order for the code line numbers to stay in sync
*
* @param string $content
* @return array array of lines
* @access private
*/
function __getExecutableLines($content) {
$content = h($content);
// arrays are 0-indexed, but we want 1-indexed stuff now as we are talking code lines mind you (**)
$content = "\n".$content;
// // strip unwanted lines
$content = preg_replace_callback("/(@codeCoverageIgnoreStart.*?@codeCoverageIgnoreEnd)/is", array('CodeCoverageManager', '__replaceWithNewlines'), $content);
// strip php | ?\> tag only lines
$content = preg_replace('/[ |\t]*[<\?php|\?>]+[ |\t]*/', '', $content);
// strip lines that contain only braces and parenthesis
$content = preg_replace('/[ |\t]*[{|}|\(|\)]+[ |\t]*/', '', $content);
$result = explode("\n", $content);
// unset the zero line again to get the original line numbers, but starting at 1, see (**)
unset($result[0]);
return $result;
}
/**
* Replaces a given arg with the number of newlines in it
*
* @return string the number of newlines in a given arg
* @access private
*/
function __replaceWithNewlines() {
$args = func_get_args();
$numLineBreaks = count(explode("\n", $args[0][0]));
return str_pad('', $numLineBreaks-1, "\n");
}
/**
* Paints the headline for code coverage analysis
*
* @param string $codeCoverage
* @param string $report
* @return void
* @access private
*/
function __paintHeader($lineCount, $coveredCount, $report) {
$manager =& CodeCoverageManager::getInstance();
$codeCoverage = $manager->__calcCoverage($lineCount, $coveredCount);
return $report = 'Code Coverage: '.$codeCoverage.'%
';
}
/**
* Paints a code line for html output
*
* @package default
* @access private
*/
function __paintCodeline($class, $num, $line) {
return ''.$num.''.h($line).'
';
}
/**
* Calculates the coverage percentage based on a line count and a covered line count
*
* @param string $lineCount
* @param string $coveredCount
* @return void
* @access private
*/
function __calcCoverage($lineCount, $coveredCount) {
if ($coveredCount > $lineCount) {
trigger_error('Sorry, you cannot have more covered lines than total lines!');
}
return ($lineCount != 0)
? round(100*$coveredCount/$lineCount, 2)
: '0.00';
}
/**
* Finds the last element of an array that contains $needle in a strpos computation
*
* @param array $arr
* @param string $needle
* @return void
* @access private
*/
function __array_strpos($arr, $needle, $reverse = false) {
if (!is_array($arr) || empty($arr)) {
return false;
}
if ($reverse) {
$arr = array_reverse($arr, true);
}
foreach ($arr as $key => $val) {
if (strpos($val, $needle) !== false) {
return $key;
}
}
return false;
}
}
?>