Lithium Docs

						public function testResponseRendering() {
		$this->response->body = 'Document body';

		ob_start();
		$this->response->render();
		$result = ob_get_clean();
		$this->assertEqual('Document body', $result);
		$this->assertEqual(array('HTTP/1.1 200 OK'), $this->response->testHeaders);

		ob_start();
		echo $this->response;
		$result = ob_get_clean();
		$this->assertEqual('Document body', $result);
		$this->assertEqual(array('HTTP/1.1 200 OK'), $this->response->testHeaders);

		$expires = strtotime('+1 hour');
		$this->response->cache($expires);
		ob_start();
		$this->response->render();
		$result = ob_get_clean();
		$headers = array (
			'HTTP/1.1 200 OK',
			'Expires: ' . gmdate('D, d M Y H:i:s', $expires) . ' GMT',
			'Cache-Control: max-age=' . ($expires - time()),
			'Pragma: cache'
		);
		$this->assertEqual($headers, $this->response->testHeaders);

		$expires = '+2 hours';
		$this->response->cache($expires);
		ob_start();
		$this->response->render();
		$result = ob_get_clean();
		$headers = array (
			'HTTP/1.1 200 OK',
			'Expires: ' . gmdate('D, d M Y H:i:s', strtotime($expires)) . ' GMT',
			'Cache-Control: max-age=' . (strtotime($expires) - time()),
			'Pragma: cache'
		);
		$this->assertEqual($headers, $this->response->testHeaders);

		$this->response->body = 'Created';
		$this->response->status(201);
		$this->response->cache(false);

		ob_start();
		$this->response->render();
		$result = ob_get_clean();
		$this->assertEqual('Created', $result);

		$headers = array (
			'HTTP/1.1 201 Created',
			'Expires: Mon, 26 Jul 1997 05:00:00 GMT',
			array(
				'Cache-Control: no-store, no-cache, must-revalidate',
				'Cache-Control: post-check=0, pre-check=0',
				'Cache-Control: max-age=0'
			),
			'Pragma: no-cache'
		);
		$this->assertEqual($headers, $this->response->testHeaders);

		$this->expectException('/^`Request::disableCache\(\)`.+`Request::cache\(false\)`/');
		$this->response->disableCache();
	}