ANDC - Average Number of Derived Classes: The average number of direct
subclasses of a class. This metric only covers classes in the analyzed system,
no library or environment classes are covered.
AHH - Average Hierarchy Height: The computed average of all inheritance
trees within the analyzed system, external classes or interfaces are ignored.
/**
* testAnalyzerNotCountsImplementedInterfaceMethodsAsOverwritten
*
* @return void
*/
public function testAnalyzerNotCountsImplementedInterfaceMethodsAsOverwritten()
{
$namespaces = self::parseCodeResourceForTest();
$class = $namespaces->current()->getClasses()->current();
$analyzer = new InheritanceAnalyzer();
$analyzer->analyze($namespaces);
$metrics = $analyzer->getNodeMetrics($class);
$this->assertEquals(1, $metrics['noom']);
}
/**
* Aggregates the required metrics from the registered analyzers.
*
* @return array(string => mixed)
* @throws \RuntimeException If one of the required analyzers isn't set.
*/
private function collectMetrics()
{
if ($this->coupling === null) {
throw new \RuntimeException('Missing Coupling analyzer.');
}
if ($this->cyclomaticComplexity === null) {
throw new \RuntimeException('Missing Cyclomatic Complexity analyzer.');
}
if ($this->inheritance === null) {
throw new \RuntimeException('Missing Inheritance analyzer.');
}
if ($this->nodeCount === null) {
throw new \RuntimeException('Missing Node Count analyzer.');
}
if ($this->nodeLoc === null) {
throw new \RuntimeException('Missing Node LOC analyzer.');
}
$coupling = $this->coupling->getProjectMetrics();
$cyclomatic = $this->cyclomaticComplexity->getProjectMetrics();
$inheritance = $this->inheritance->getProjectMetrics();
$nodeCount = $this->nodeCount->getProjectMetrics();
$nodeLoc = $this->nodeLoc->getProjectMetrics();
return array('cyclo' => $cyclomatic['ccn2'], 'loc' => $nodeLoc['eloc'], 'nom' => $nodeCount['nom'] + $nodeCount['nof'], 'noc' => $nodeCount['noc'], 'nop' => $nodeCount['nop'], 'ahh' => round($inheritance['ahh'], 3), 'andc' => round($inheritance['andc'], 3), 'fanout' => $coupling['fanout'], 'calls' => $coupling['calls']);
}
/**
* testInheritanceAnalyzerNotRunsEndlessForDeepInterfaceHierarchy
*
* @return void
*/
public function testInheritanceAnalyzerNotRunsEndlessForDeepInterfaceHierarchy()
{
set_time_limit(5);
$analyzer = new InheritanceAnalyzer();
$analyzer->analyze($this->parseCodeResourceForTest());
}
