/**
* Calculates the crap index for the given callable.
*
* @param PHP_Depend_Code_AbstractCallable $callable The context callable.
*
* @return float
*/
private function _calculateCrapIndex(PHP_Depend_Code_AbstractCallable $callable)
{
$report = $this->_createOrReturnCoverageReport();
$complexity = $this->_ccnAnalyzer->getCCN2($callable);
$coverage = $report->getCoverage($callable);
if ($coverage == 0) {
return pow($complexity, 2) + $complexity;
} else {
if ($coverage > 99.5) {
return $complexity;
}
}
return pow($complexity, 2) * pow(1 - $coverage / 100, 3) + $complexity;
}
/**
* Calculates the Weight Method Per Class metric, this method only counts
* protected and public methods of parent classes.
*
* @param PHP_Depend_Code_Class $class The context class instance.
*
* @return integer
*/
private function _calculateWMCi(PHP_Depend_Code_Class $class)
{
// List of methods, this method only counts not overwritten methods.
$ccn = array();
// First collect all methods of the context class
foreach ($class->getMethods() as $m) {
$ccn[$m->getName()] = $this->_cyclomaticAnalyzer->getCCN2($m);
}
// Get parent class and collect all non private methods.
$parent = $class->getParentClass();
while ($parent !== null) {
// Count all methods
foreach ($parent->getMethods() as $m) {
if (!$m->isPrivate() && !isset($methods[$m->getName()])) {
$ccn[$m->getName()] = $this->_cyclomaticAnalyzer->getCCN2($m);
}
}
// Fetch parent class
$parent = $parent->getParentClass();
}
return array_sum($ccn);
}
/**
* testCalculateExpectedCCN2ForDoWhileStatement
*
* @return void
* @covers PHP_Depend_Metrics_CyclomaticComplexity_Analyzer
* @group pdepend
* @group pdepend::metrics
* @group pdepend::metrics::cyclomaticcomplexity
* @group unittest
*/
public function testCalculateExpectedCCN2ForDoWhileStatement()
{
$packages = self::parseTestCaseSource(__METHOD__);
$function = $packages->current()->getFunctions()->current();
$analyzer = new PHP_Depend_Metrics_CyclomaticComplexity_Analyzer();
$analyzer->analyze($packages);
$this->assertEquals(3, $analyzer->getCCN2($function));
}
/**
* Calculates the Weight Method Per Class metric.
*
* @param PHP_Depend_Code_AbstractType $type The context type instance.
*
* @return integer[]
* @since 1.0.6
*/
private function _calculateWMCi(PHP_Depend_Code_AbstractType $type)
{
$ccn = array();
foreach ($type->getMethods() as $method) {
$ccn[$method->getName()] = $this->_cyclomaticAnalyzer->getCCN2($method);
}
return $ccn;
}
