/**
* 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);
}
/**
* Tests that the {@link PHP_Depend_Code_Class::addMethod()} method adds a
* method to the internal list and sets the context class as parent.
*
* @return void
*/
public function testAddMethodStoresNewlyAddedMethodInCollection()
{
$class = new PHP_Depend_Code_Class(__CLASS__);
$class->setCache(new PHP_Depend_Util_Cache_Driver_Memory());
$class->addMethod(new PHP_Depend_Code_Method(__FUNCTION__));
self::assertEquals(1, $class->getMethods()->count());
}
/**
* Tests that a new {@link PHP_Depend_Code_Class} object returns an empty
* {@link PHP_Depend_Code_NodeIterator} instance for methods.
*
* @return void
* @covers PHP_Depend_Code_AbstractClassOrInterface
* @covers PHP_Depend_Code_Class
* @group pdepend
* @group pdepend::code
* @group unittest
*/
public function testGetMethodNodeIterator()
{
$class = new PHP_Depend_Code_Class('clazz', 0);
$methods = $class->getMethods();
$this->assertEquals(0, $methods->count());
}
