public function testDigest() {
		$request = new Request(array(
			'path' => 'http_auth',
			'auth' => array(
				'realm' => 'app',
				'qop' => 'auth',
				'nonce' => '4bca0fbca7bd0',
				'opaque' => 'd3fb67a7aa4d887ec4bf83040a820a46'
			),
			'username' => 'gwoo',
			'password' => 'li3'
		));
		$cnonce = md5(time());
		$user = md5("gwoo:app:li3");
		$nonce = "4bca0fbca7bd0:00000001:{$cnonce}:auth";
		$req = md5("GET:/http_auth");
		$hash = md5("{$user}:{$nonce}:{$req}");

		$request->to('url');
		preg_match('/response="(.*?)"/', $request->headers('Authorization'), $matches);
		list($match, $response) = $matches;

		$expected = $hash;
		$result = $response;
		$this->assertEqual($expected, $result);
	}