/**
* @group Common
*/
public function testParents()
{
$p = new DataContainer();
$c = new DataContainer();
$this->assertEquals(null, $c->getParent());
$this->assertFalse($c->hasParent());
$this->assertEquals($c, $c->setParent($p));
$this->assertEquals($p, $c->getParent());
$this->assertTrue($c->hasParent());
$this->assertEquals($c, $c->disableParent());
$this->assertFalse($c->hasParent());
$this->assertEquals($c, $c->enableParent());
$this->assertTrue($c->hasParent());
$this->assertEquals($c, $c->setParent(null));
$this->assertFalse($c->hasParent());
}
