/**
* tests getMaxDepth method
*
* @return null
*/
public function testGetMaxDepth()
{
$this->assertEquals(3, $this->_oSubj->getMaxDepth());
$this->assertEquals(2, $this->_oSubj->getMdSubvariantByName("Red")->getMaxDepth());
$this->assertEquals(1, $this->_oSubj->getMdSubvariantByName("Red")->getMdSubvariantByName("L")->getMaxDepth());
$this->assertEquals(0, $this->_oSubj->getMdSubvariantByName("Red")->getMdSubvariantByName("L")->getMdSubvariantByName("Silk")->getMaxDepth());
$this->assertEquals(0, $this->_oSubj->getMdSubvariantByName("Red")->getMdSubvariantByName("L")->getMdSubvariantByName("Wool")->getMaxDepth());
}