public function testRegisterLayout()
{
$layouts = new Component_Layouts($this->content, $this->settings);
$layouts->register_layout('l1', 'val1');
$layouts->register_layout('l2', 'val2');
$result = $layouts->to_array();
$this->assertEquals(2, count($result));
$this->assertEquals('val1', $result['l1']);
$this->assertEquals('val2', $result['l2']);
}