public function testType() {
		$request = new Request();
		$this->assertEqual('html', $request->type());

		$request = new Request(array('env' => array(
			'CONTENT_TYPE' => 'application/json; charset=UTF-8',
			'REQUEST_METHOD' => 'POST'
		)));
		$this->assertEqual('application/json; charset=UTF-8', $request->env('CONTENT_TYPE'));
		$this->assertEqual('json', $request->type());
	}