/**
* @dataProvider providesClasses
*/
public function testICanCalculateSystemComplexityOfClass($totalDataComplexity, $totalStructureComplexity, $totalSystemComplexity, $code)
{
$filename = tempnam(sys_get_temp_dir(), 'unit-phpmetrics-syc');
file_put_contents($filename, $code);
$extractor = new Extractor(new Tokenizer());
$classes = $extractor->extract($filename)->getClasses();
$class = $classes[0];
$metric = new SystemComplexity();
$result = $metric->calculate($class);
$this->assertEquals($totalDataComplexity, $result->getTotalDataComplexity(), 'total data complexity');
$this->assertEquals($totalStructureComplexity, $result->getTotalStructuralComplexity(), 'total structure complexity');
$this->assertEquals($totalSystemComplexity, $result->getTotalSystemComplexity(), 'total system complexity');
unlink($filename);
}
/**
* Calculates system complexity
*
* @param string $filename
* @return Result
*/
public function calculate($filename)
{
$rOOP = $this->classMap->getClassesIn($filename);
$result = new Result($filename);
$len = 0;
$sy = $dc = $sc = array();
$calculator = new SystemComplexity();
foreach ($rOOP->getClasses() as $class) {
$r = $calculator->calculate($class);
$len += sizeof($class->getMethods(), COUNT_NORMAL);
$sy[] = $r->getTotalSystemComplexity();
$dc[] = $r->getTotalDataComplexity();
$sc[] = $r->getTotalStructuralComplexity();
}
if ($len > 0 && sizeof($dc, COUNT_NORMAL) > 0) {
$result->setRelativeStructuralComplexity(round(array_sum($sc) / $len, 2))->setRelativeDataComplexity(round(array_sum($dc) / $len, 2))->setRelativeSystemComplexity(round(array_sum($sy) / $len, 2))->setTotalStructuralComplexity(array_sum($sc))->setTotalDataComplexity(array_sum($dc))->setTotalSystemComplexity(array_sum($dc) + array_sum($sc));
}
return $result;
}
