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<?php
/**
* Generates code coverage reports in HTML from data obtained from PHPUnit
*
* PHP5
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @package Cake.TestSuite.Coverage
* @since CakePHP(tm) v 2.0
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
App::uses('BaseCoverageReport', 'TestSuite/Coverage');
/**
* Generates code coverage reports in HTML from data obtained from PHPUnit
*
* @package Cake.TestSuite.Coverage
*/
class HtmlCoverageReport extends BaseCoverageReport {
/**
* Generates report html to display.
*
* @return string compiled html report.
*/
public function report() {
$pathFilter = $this->getPathFilter();
$coverageData = $this->filterCoverageDataByPath($pathFilter);
if (empty($coverageData)) {
return '<h3>No files to generate coverage for</h3>';
}
$output = $this->coverageScript();
$output .= <<<HTML
<h3>Code coverage results
<a href="#" onclick="coverage_toggle_all()" class="coverage-toggle">Toggle all files</a>
</h3>
HTML;
foreach ($coverageData as $file => $coverageData) {
$fileData = file($file);
$output .= $this->generateDiff($file, $fileData, $coverageData);
}
return $output;
}
/**
* Generates an HTML diff for $file based on $coverageData.
*
* Handles both PHPUnit3.5 and 3.6 formats.
*
* 3.5 uses -1 for uncovered, and -2 for dead.
* 3.6 uses array() for uncovered and null for dead.
*
* @param string $filename Name of the file having coverage generated
* @param array $fileLines File data as an array. See file() for how to get one of these.
* @param array $coverageData Array of coverage data to use to generate HTML diffs with
* @return string HTML diff.
*/
public function generateDiff($filename, $fileLines, $coverageData) {
$output = '';
$diff = array();
list($covered, $total) = $this->_calculateCoveredLines($fileLines, $coverageData);
//shift line numbers forward one;
array_unshift($fileLines, ' ');
unset($fileLines[0]);
foreach ($fileLines as $lineno => $line) {
$class = 'ignored';
$coveringTests = array();
if (!empty($coverageData[$lineno]) && is_array($coverageData[$lineno])) {
$coveringTests = array();
foreach ($coverageData[$lineno] as $test) {
$class = (is_array($test) && isset($test['id'])) ? $test['id'] : $test;
$testReflection = new ReflectionClass(current(explode('::', $class)));
$this->_testNames[] = $this->_guessSubjectName($testReflection);
$coveringTests[] = $class;
}
$class = 'covered';
} elseif (isset($coverageData[$lineno]) && ($coverageData[$lineno] === -1 || $coverageData[$lineno] === array())) {
$class = 'uncovered';
} elseif (array_key_exists($lineno, $coverageData) && ($coverageData[$lineno] === -2 || $coverageData[$lineno] === null)) {
$class .= ' dead';
}
$diff[] = $this->_paintLine($line, $lineno, $class, $coveringTests);
}
$percentCovered = 100;
if ($total > 0) {
$percentCovered = round(100 * $covered / $total, 2);
}
$output .= $this->coverageHeader($filename, $percentCovered);
$output .= implode("", $diff);
$output .= $this->coverageFooter();
return $output;
}
/**
* Guess the classname the test was for based on the test case filename.
*
* @param ReflectionClass $testReflection.
* @return string Possible test subject name.
*/
protected function _guessSubjectName($testReflection) {
$basename = basename($testReflection->getFilename());
if (strpos($basename, '.test') !== false) {
list($subject, ) = explode('.', $basename, 2);
return $subject;
}
$subject = str_replace('Test.php', '', $basename);
return $subject;
}
/**
* Renders the html for a single line in the html diff.
*
* @return void
*/
protected function _paintLine($line, $linenumber, $class, $coveringTests) {
$coveredBy = '';
if (!empty($coveringTests)) {
$coveredBy = "Covered by:\n";
foreach ($coveringTests as $test) {
$coveredBy .= $test . "\n";
}
}
return sprintf(
'<div class="code-line %s" title="%s"><span class="line-num">%s</span><span class="content">%s</span></div>',
$class,
$coveredBy,
$linenumber,
htmlspecialchars($line)
);
}
/**
* generate some javascript for the coverage report.
*
* @return void
*/
public function coverageScript() {
return <<<HTML
<script type="text/javascript">
function coverage_show_hide(selector) {
var element = document.getElementById(selector);
element.style.display = (element.style.display == 'none') ? '' : 'none';
}
function coverage_toggle_all() {
var divs = document.querySelectorAll('div.coverage-container');
var i = divs.length;
while (i--) {
if (divs[i] && divs[i].className.indexOf('primary') == -1) {
divs[i].style.display = (divs[i].style.display == 'none') ? '' : 'none';
}
}
}
</script>
HTML;
}
/**
* Generate an HTML snippet for coverage headers
*
* @return void
*/
public function coverageHeader($filename, $percent) {
$filename = basename($filename);
list($file, $ext) = explode('.', $filename);
$display = in_array($file, $this->_testNames) ? 'block' : 'none';
$primary = $display == 'block' ? 'primary' : '';
return <<<HTML
<div class="coverage-container $primary" style="display:$display;">
<h4>
<a href="#coverage-$filename" onclick="coverage_show_hide('coverage-$filename');">
$filename Code coverage: $percent%
</a>
</h4>
<div class="code-coverage-results" id="coverage-$filename" style="display:none;">
<pre>
HTML;
}
/**
* Generate an HTML snippet for coverage footers
*
* @return void
*/
public function coverageFooter() {
return "</pre></div></div>";
}
}
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