public function testTypeManipulation() {
		$this->assertEqual('html', $this->response->type());
		$this->assertEqual('html', $this->response->type('html'));
		$this->assertEqual('json', $this->response->type('json'));
		$this->assertEqual('json', $this->response->type());
		$this->assertEqual(false, $this->response->type(false));
		$this->assertEqual(false, $this->response->type());
	}