text: // use addon to mock http request
  module.exports = {
    // GET
    'POST /login': function (req, res, next) {
      const normal = {
        error: '',
      };
      const error = {
        error: '密码不对',
      }
      if (req.body.username === 'a') {
        res.send(normal)
      } else res.send(error)
    },
  }
  