public function testRemoveAlias()
{
// prepare test data
$this->rawLayout->add('root', null, 'root');
$this->rawLayout->add('header', 'root', 'header');
$this->rawLayout->addAlias('test_header', 'header');
// do test
$this->rawLayout->removeAlias('test_header');
$this->assertFalse($this->rawLayout->hasAlias('test_header'));
}
