[tests][m]-add-tests-for-all-pages

pages/_app.tsx

@@ -1,5 +1,7 @@
+/* istanbul ignore file */
 import '../styles/index.css'
 
 export default function MyApp({ Component, pageProps }) {
   return <Component {...pageProps} />
-}
+}
+

pages/api/hello.ts

@@ -1,7 +0,0 @@
-// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
-import { NextApiRequest, NextApiResponse } from 'next';
-
-export default (req: NextApiRequest, res: NextApiResponse) => {
-  res.statusCode = 200
-  res.json({ name: 'John Doe' })
-}