MainRoutes.js

import React from 'react'
import { Switch, Route } from 'react-router-dom'

import LoginPage from '../pages/login/LoginPage'
import MainPage from '../pages/main/MainPage'
import Test from '../pages/test/Test'

export default () => (
  <Switch>
    <Route exact path="/" component={LoginPage} />
    <Route path="/login" component={LoginPage} />
    <Route path="/main" component={MainPage} />
    <Route path="/test" component={Test} />
  </Switch>
)